RPD Pneumatic Actuator
BIFFI
Double acting pneumatic actuator for 90° operation for
On-Off and Modulating heavy duty service
General
The RPD pneumatic actuator series was
engineered and is manufactured to
provide maximum torque output with
minimum supply pressure.
Simplicity, reliability and economy are at the
top of the list of design parameters.
The RPD actuator is suitable for any quarter
turn application such as ball, plug, butterfly
valves or dampers, in both On-Off and
Modulating heavy duty service.
Features
• Totally enclosed, weatherproof housing in
nodular cast iron for maximum strength and
suitable for use in hostile environments
• A compact rack and pinion design provides
simple construction and constant output
torque throughout the 90° stroke
• An adjustable bronze sliding block supports
the transverse force exerted on the rack by
its engagement with the pinion
• Rack and pinion in nodular cast iron, output
shaft in alloy steel for maximum strength
• The rack is nitrided for minimal friction
• External travel stops for precise angular
stroke adjustment between 80° and 100°
• Electroless nickel plated and polished
cylinder and output shaft for corrosion
resistance and minimal friction
• Floating type piston seals for low hysteresis
and high sensitivity, preventing sticking
problems
• Lever or jackscrew manual override
- An extensive range of accessories is
available:
- limit switch boxes - explosionproof,
intrinsically safe and/or weatherproof
- limit switches can be provided in different
types according to customer requirements
- position transmitters - explosionproof,
intrinsically safe and/or weatherproof
- air conditioners
- air storage tanks ISPESL stamped. Tanks
in accordance with different codes (ASME
VIII, div. 1, SNCT, BS, TÜV, etc.) on
request
- solenoid valves - explosionproof,
intrinsically safe and/or weatherproof
- control valves, flow regulators, quick
exhaust valves
- positioners - pneumatic or
electropneumatic
- pressure switches - pneumatic or electric
www.pentair.com/valves
- terminals enclosures, pushbutton panels explosionproof or intrinsically safe and/or
weatherproof
• Special coatings for offshore or corrosive
environments
Pentair reserves the right to change the content without notice
BIFRM-0017-EN-1305
RPD Pneumatic Actuator
14
13
17
11
4
8
2
1
9
10
15
16
10
9
12
16
3
6
7
5
Materials of construction
Technical data
Item
Name
Material
Equivalence to U.S. standards
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Housing
Shaft
Rack
Pinion
Sliding block
Thrust bearing screw
Sealing washer
Shaft seal ring
Travel stop screw
Sealing washer
Cylinder tube
Piston
Piston guide sliding ring
Piston seal ring
End flange
Cylinder gasket
Tie rod
Nodular cast iron
Alloy steel (Nickel plated)
Nodular cast iron
Nodular cast iron
Bronze
Carbon steel
PVC
Nitrile rubber
Carbon steel
PVC
Carbon steel (Nickel plated)
Carbon steel
Teflon + Graphite
Nitrile rubber
Carbon steel
Nitrile rubber
Alloy steel
ASTM A536 gr 65 - 45 - 12
AISI SAE 9840
ASTM A536 gr 65 - 45 - 12
ASTM A536 gr 65 - 45 - 12
ASTM B427 Alloy UNS No C90800
AISI SAE 1040
Pentair reserves the right to change the content without notice
AISI SAE 1040
API 5LX gr X52
ASTM A105
ASTM A105
AISI SAE 9840
page 2
Supply pressure
Supply medium
: 10.5 bar g maximum
: air, nitrogen or sweet
gas
Ambient temperature : -30° C to +100° C
Special versions for
service outside this
range on request
Output torques
: up to 3500 Nm
RPD Pneumatic Actuator
output torques
Output torques in Nm
Model
RP 15 D1
RP 15 D2
RP 30 D1
RP 30 D2
RP 60 D1
RP 60 D2
RP 120 D1
RP 120 D2
Supply pressure (bar g)
2
46
65
84
157
193
329
387
709
2.53
60
84
108
200
245
418
492
898
73
102
131
243
298
507
596
1086
3.5 4
86
120
155
286
351
596
700
1275
99
139
179
329
404
684
805
1463
5
126
175
226
415
510
862
1014
1841
6
152
212
273
501
616
1040
1224
2218
7
179
249
320
587
722
1218
1433
2595
8
205
286
368
674
827
1396
1642
2972
9
232
322
415
760
933
1573
1851
3349
10
259
359
462
846
1039
1751
2060
-
10.5
272
378
486
889
1092
1840
2165
-
Note
Max allowable pressure of 10.5 bar g is the static pressure applicable to fully stroked actuator
against the travel stops
Output torques in Nm
Supply pressure (bar g)
Model
RP 120 D3
1.522.5 3 3.5 4
1073
1456
1839
2223
2606
2989
4.5
3372
Note
Max allowable pressure of 5 bar g is the static pressure applicable to fully stroked actuator against
the travel stops
Pentair reserves the right to change the contents without notice
page 3
RPD Pneumatic Actuator
material specification
Item Name
Material
1
2
3
4
5
6
7
8
10
13
14
15
17
18
19
20
21
22
23
24
25
26
27
28
30
31
Nodular cast iron
ASTM A536 gr 65-45-12
Nodular cast iron
ASTM A536 gr 65-45-12
Carbon steel
ASTM A105
Carbon steel
ASTM A105
Nodular cast iron
ASTM A536 gr 65-45-12
Alloy steel (nickel plated)
AISI SAE 9840
Nitrile rubber
Nylon
Carbon steel
ASTM A194 gr 2
Carbon steel (nickel plated)
API 5LX gr X52
Alloy steel
AISI SAE 9840
Carbon steel
AISI SAE 1040
PVC
PVC
Bronze
ASTM B427 Alloy UNS No. C90800
Teflon+Graphite
Spring steel
ASTM A479 type 302
Alloy steel
ASTM A320 L7
Nitrile rubber
Nitrile rubber
Carbon steel
ASTM A194 gr 2
Carbon steel
ASTM A194 gr 2
Carbon steel
AISI SAE 1040
Carbon steel
AISI SAE 1040
Carbon steel
AISI SAE 1040
Alloy steel
ASTM A320 L7
Housing
Pinion
Piston
End flange
Rack
Shaft
Cylinder gasket
Shoulder washer
Nut
Cylinder tube
Tie rod
Thrust bearing screw
Sealing washer
Sealing washer
Sliding block
Piston guide sliding ring
Retainer ring
Screw
O - ring
O - ring
Nut
Nut
Washer
Washer
Travel stop screw
Screw
Equivalent to US standards
Qty
1
1
1
1
1
1
2•
2•
2
1
4
1
2•
1•
1
1•
2•
1
2
1•
8
1
1
2
2
1
• Recommended spare parts
Pentair reserves the right to change the contents without notice
page 4
RPD - MSJ Pneumatic Actuator
material specification: Actuator with Jackscrew Manual Override
Item Name
Material
1
2
3
4
5
6
7
8
10
13
14
15
17
18
19
20
21
22
23
24
25
26
27
28
31
33
34
35
37
38
39
Nodular cast iron
ASTM A536 gr 65-45-12
Nodular cast iron
ASTM A536 gr 65-45-12
Carbon steel
ASTM A105
Carbon steel
ASTM A105
Nodular cast iron
ASTM A536 gr 65-45-12
Alloy steel (nickel plated)
AISI SAE 9840
Nitrile rubber
Nylon
Carbon steel
ASTM A194 gr 2
Carbon steel (nickel plated)
API 5LX gr X52
Alloy steel
AISI SAE 9840
Carbon steel
AISI SAE 1040
PVC
PVC
Bronze
ASTM B427 Alloy UNS No. C90800
Teflon + Graphite
Spring steel
ASTM A479 type 302
Alloy steel
ASTM A320 L7
Nitrile rubber
Nitrile rubber
Carbon steel
ASTM A194 gr 2
Carbon steel
ASTM A194 gr 2
Carbon steel
AISI SAE 1040
Carbon steel
AISI SAE 1040
Alloy steel
ASTM A320 L7
Bronze
ASTM B427 Alloy UNS No. C90800
Nitrited alloy steel + AISI SAE 9840 +
Bronze
ASTM B427 Alloy UNS No. C90800
Nitrile rubber
Carbon steel
ASTM A283 gr D
Stainless steel
ASTM A479 type 304
Stainless steel
ASTM A193 B8
Housing
Pinion
Piston
End flange
Rack
Shaft
Cylinder gasket
Shoulder washer
Nut
Cylinder tube
Tie rod
Thrust bearing screw
Sealing washer
Sealing washer
Sliding block
Piston guide sliding ring
Retainer ring
Screw
O - ring
O - ring
Nut
Nut
Washer
Washer
Screw
Travel stop screw
Manual override
jackscrew
O - ring
Handwheel
Washer
Screw
Equivalent to US standards
Qty
1
1
1
1
1
1
2•
2•
2
1
4
1
2•
1•
1
1•
2•
1
2
1•
8
1
1
2
1
2
2
2•
2
2
2
• Recommended spare parts
Pentair reserves the right to change the contents without notice
page 5
RP D1 and RP D2 Pneumatic Actuators
C
J
H
overall dimensions
W
A
E
F
V
U
G
B
D
T
S
ø X Pneumatic
connections
Dimensions in mm
Air Consumpt.
ø X(litres)Weight
Model
A
B
RP 15 D1
RP 15 D2
RP 30 D1
RP 30 D2
RP 60 D1
RP 60 D2
RP 120 D1
RP 120 D1
440
440
531
531
640
640
770
770
160
160
215
215
255
255
308
308
C
120
120
154
154
200
200
260
260
D
E
F
G
H
J
S
T
U
V
W
NPT
175
175
206
206
250
250
310
310
265
265
325
325
390
390
460
460
41
41
54
54
66
66
82
82
55
55
70
70
85
85
100
100
140
140
164
164
204
204
270
270
80
80
100
100
120
120
160
160
224
224
274
274
329
329
390
390
74
74
93
93
112
112
135
135
5
5
7
7
15
15
28
28
22
22
36
36
40
40
50
50
50
50
65
65
85
85
100
100
1/4
1/4
1/4
1/4
1/2
1/2
1/2
1/2
Note
- Dimensions and weights given are without optional bracket
- For mounting flange details see separate coupling dimensions leaflet
- W = maximum allowable mounting bracket dimensions (pneumatic cylinder side)
Pentair reserves the right to change the contents without notice
page 6
Open Close
0.8
0.9
1.2
2
2.5
4
4.5
8
1.7
1.8
3
4
6
8
10
15
(Kg)
12
13
21
25
38
44
77
85
RP 120 D3 Pneumatic Actuator
øC
J
H
overall dimensions
W
A
G
E
U
F
B
D
T
S
ø X Pneumatic
connections
Dimensions in mm
Air Consumpt.
ø X
(litres)
Weight
Model
A
B
ø C
D
E
F
G
H
J
S
T
U
W
NPT
Open
Close
(Kg)
RP 120 D3
815
308
400
310
505
82
100
270
160
449
156
100
100
1/2
16
23
150
Note
- Dimensions and weight given are without optional bracket
- For mounting flange details see separate coupling dimensions leaflet
- W = maximum allowable mounting bracket dimension (pneumatic cylinder side)
Pentair reserves the right to change the contents without notice
page 7
RPS Pneumatic Actuator
Spring return pneumatic actuator for 90° operation for On-Off and
Modulating heavy duty service
General
The RPS pneumatic spring return actuator series was engineered and is manufactured to provide
fail safe operation for any quarter turn application such as ball, plug, butterfly valves or dampers, in
both On-Off and Modulating heavy-duty service. Simplicity, reliability and economy are at the top of
the list of design parameters.
The spring module incorporates one or two springs in series, depending on the model, and is fully
encapsulated.
This ensures safety to personnel and ease of assembly.
Features
- Totally enclosed, weatherproof housing in nodular cast iron for maximum strength and suitable
for use in hostile environments
- The mounting flange is identical on both faces of the housing, the shaft output drives have the
same dimensions but are positioned at 90°. This allows the actuator to be used as spring to close
or spring to open without modifications
- A compact rack and pinion design provides simple construction
- External travel stops for precise angular stroke adjustment between 80° and 100°
- Electroless nickel plated and polished cylinder and output shaft for corrosion resistance and
minimal friction
- Floating type piston seals for low hysteresis and high sensitivity, preventing sticking problems
- Jackscrew manual override
- An extensive range of accessories is available:
-limit switch boxes - explosionproof, intrinsically safe and/or weatherproof
-limit switches can be provided in different types according to customer requirements
-position transmitters - explosionproof, intrinsically safe and/or weatherproof
-air conditioners
-solenoid valves - explosionproof, intrinsically safe and/or weatherproof
-control valves, flow regulators, quick exhaust valves
-positioners - pneumatic or electropneumatic
-pressure switches - pneumatic or electric
-terminals enclosures, pushbutton panels - explosionproof or intrinsically safe and/or
weatherproof
- Special coatings for offshore or corrosive environments
Pentair reserves the right to change the contents without notice
page 8
RPS Pneumatic Actuator
spring return for 90° operation
14
13
17
11
18
4
8
2
1
15
9
10
16
10
9
12
20
19
16
3
6
7
5
Materials of construction
Item
Name
Material
Equivalence to U.S. standards
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Housing
Shaft
Rack
Pinion
Sliding block
Thrust bearing screw
Sealing washer
Shaft seal ring
Travel stop screw
Sealing washer
Cylinder tube
Piston
Piston guide sliding ring
Piston seal ring
End flange
Cylinder gasket
Tie rod
Spring retainer disk
Spring
Rack spacer rod
Nodular cast iron
Alloy steel (Nickel plated)
Nodular cast iron
Nodular cast iron
Bronze
Carbon steel
PVC
Nitrile rubber
Carbon steel
PVC
Carbon steel (Nickel plated)
Carbon steel
Teflon + Graphite
Nitrile rubber
Carbon steel
Nitrile rubber
Alloy steel
Carbon steel
Carbon steel
Carbon steel
ASTM A536 gr 65 - 45 - 12
AISI SAE 9840
ASTM A536 gr 65 - 45 - 12
ASTM A536 gr 65 - 45 - 12
ASTM B427 Alloy UNS No C90800
AISI SAE 1040
AISI SAE 1040
API 5LX gr X52
ASTM A105
ASTM A105
AISI SAE 9840
ASTM A283 gr D
ASTM A29 gr 9254
AISI SAE 1040
Technical data
Supply pressure
Supply medium
:10.5 bar g maximum
:air, nitrogen or sweet
gas
Ambient temperature:-30° C to + 100° C
Special versions for
service outside this
range on request
Output torques
:up to 940 Nm
Pentair reserves the right to change the contents without notice
page 9
RPS Pneumatic Actuator
output torques
Output torques in Nm
Spring
torque 3
3.54 56
78910
10.5
Supply pressure (bar g)
Model
SSTSET ASTAETASTAETASTAETASTAETASTAETASTAETASTAETASTAETASTAETASTAET
RP 15S2A1
RP 15S2B1
RP 15S2C1
RP 15S2A2
RP 15S2B2
RP 15S2C2
RP 30S2A1
RP 30S2B1
RP 30S2C1
RP 30S2A2
RP 30S2B2
RP 30S2C2
RP 60S2A1
RP 60S2B1
RP 60S2C1
RP 60S2A2
RP 60S2B2
RP 60S2C2
RP 120S2A1
RP 120S2B1
RP 120S2C1
RP 120S2A2
RP 120S2B2
RP 120S2C2
5132 62 41 80 59 99 77
89 51 77 36
11766
5142 51 41 70 59 88 77
8970 57 36
11791
15699 125 62 169 105 212148
241127 180 55
290156
156127 94 62 137 105 180148
241184 117 55
290
223
317209 261 142 350 230 439 319
482268 374 138
588318
317263 201 142 290 230 379 319
482374 256 138
588452
706420 597 281 786 470 974 659
949531 663 201 852 390
1240643
706563 439 281 628 470 816 659
949740 432 201 621 390
1240940
135 114 172 151 209 188245224282 261319298337 316
114 72 151 109 188 146224 183 261 219298256 316274
98 42 135 79 171 116208 152245 189282226300244
125 114 161 151 198 188235 224 272 261308298327 316
93 72 130109 167 146203 183240 219277256295274
70 42 107 79 143 116180 152 217 189254226272244
298234 384320 470406556493642579729665772708
266 141 352227 439 313525 399 611485697 571740 614
234 87 320 173 406259492 345 579 431665 517708560
266234 352320 439406525493 611579697665740708
204 141 290227 376 313462 399 548485634 571678 614
160 87 246173 332259418345505 431591 517634560
617 497 794 675 972 853115010301330 12101510139016001480
552 316 730 494 908 6711090 849 126010301440 121015301290
497 198 675 376 853 5541030 732 1210 910139010901480 1180
557 497 735 675 912 853109010301270 12101450139015401480
434 316 612494 790 671 968 849115010301320121014101290
348 198 526 376 704 554 881 7321060 910124010901330 1180
1352 1036 1730 1410 2110 17902480 2170 28602550324029203430 3110
1229 767 1610 1150 1980 15202360 19002740228031202650 33102840
1106 449 1480 826 1860 12002240 1580 2620 196029902340 31802520
1194 1036 1570 1410 1950 17902330 2170 27002550308029203270 3110
998 767 1380 1150 1750 15202130 1900 251022802890265030702840
777 449 1160 826 1530 1200 1910 15802290 19602660234028502520
Note
- Max allowable pressure 10.5 bar g (static pressure applicable to fully stroked actuator against the
travel stop)
- SET: Spring Ending Torque
SST: Spring Starting Torque
AST: Air Starting Torque
AET: Air Ending Torque
Output torques in Nm
Spring
torque
1.5
2
Supply pressure (bar g)
2.5
3
3.5
4
5
Model
SSTSET ASTAETASTAETASTAETASTAETASTAETASTAETASTAET
RP 120S3A1
RP 120S3B1
RP 120S3C1
RP 120S3A2
RP 120S3B2
RP 120S3C2
690405584268967652 13501040
17301420
212018002500
21903270
2950
933515
845 383 1230 7661610 1150200015302380192031502680
1220 627
1110 4481490 8311870 1210 22601600 30202370
690548426268809652 11901040
15801420
196018002340
219031102950
933725
614 383 997 7661380 1150176015302150192029102680
1220925
776 4481160 83115401210 1930160026902370
Note
- Max allowable pressure 5 bar g (static pressure applicable to fully stroked actuator against the
travel stop)
- SET: Spring Ending Torque
SST: Spring Starting Torque
AST: Air Starting Torque
AET: Air Ending Torque
Pentair reserves the right to change the contents without notice
page 10
RPS Pneumatic Actuator
material specification
Item Name
Material
1
2
3
4
5
6
7
8
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
Nodular cast iron
ASTM A536 gr 65-45-12
Nodular cast iron
ASTM A536 gr 65-45-12
Carbon steel
ASTM A105
Carbon steel
ASTM A105
Nodular cast iron
ASTM A536 gr 65-45-12
Alloy steel (nickel plated)
AISI SAE 9840
Nitrile rubber
Nylon
Carbon steel
ASTM A194 gr 2
Carbon steel ASTM A283 gr D
Carbon steel AISI SAE 1040
Carbon steel (nickel plated)
API 5LX gr X52
Alloy steel
AISI SAE 9840
Carbon steel
AISI SAE 1040
Carbon steel
ASTM A29 gr 9254
PVC
PVC
Bronze
ASTM B427 Alloy UNS No. C90800
Teflon+Graphite
Spring steel
ASTM A479 type 302
Alloy steel
ASTM A320 L7
Nitrile rubber
Nitrile rubber
Carbon steel
ASTM A194 gr 2
Carbon steel
ASTM A194 gr 2
Carbon steel
AISI SAE 1040
Carbon steel
AISI SAE 1040
Carbon steel
ASTM A29 gr 4047
Carbon steel
AISI SAE 1040
Alloy steel
ASTM A320 L7
Aluminium + Bronze + Steel
Carbon steel
API 5LX gr X52
Housing
Pinion
Piston
End flange
Rack
Shaft
Cylinder gasket
Shoulder washer
Nut
Spring retainer disk
Rack spacer rod
Cylinder tube
Tie rod
Thrust bearing screw
Spring
Sealing washer
Sealing washer
Sliding block
Piston guide sliding ring
Retainer ring
Screw
O - ring
O - ring
Nut
Nut
Washer
Washer
Spring pin
Travel stop screw
Screw
Vent plug
Spacer tube
Equivalent to US standards
Qty
1
1
1
1
1
1
2•
2•
2
1
1
1
4
1
1
2•
1•
1
1•
2•
2
2•
1•
8
1
1
2
4
2
1
1
1
• Recommended spare parts
Pentair reserves the right to change the contents without notice
page 11
RPS - MSJ Pneumatic Actuator
material specification: Actuator with Jackscrew Manual Override
Item Name
Material
1
2
3
4
5
6
7
8
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
Nodular cast iron
ASTM A536 gr 65-45-12
Nodular cast iron
ASTM A536 gr 65-45-12
Carbon steel
ASTM A105
Carbon steel
ASTM A105
Nodular cast iron
ASTM A536 gr 65-45-12
Alloy steel (nickel plated)
AISI SAE 9840
Nitrile rubber
Nylon
Carbon steel
ASTM A194 gr 2
Carbon steel ASTM A283 gr D
Carbon steel
AISI SAE 1040
Carbon steel (nickel plated)
API 5LX gr X52
Alloy steel
AISI SAE 9840
Carbon steel
AISI SAE 1040
Carbon steel
ASTM A29 gr 9254
PVC
PVC
Bronze
ASTM B427 Alloy UNS No. C90800
Teflon + Graphite
Spring steel
ASTM A479 type 302
Alloy steel
ASTM A320 L7
Nitrile rubber
Nitrile rubber
Carbon steel
ASTM A194 gr 2
Carbon steel
ASTM A194 gr 2
Carbon steel
AISI SAE 1040
Carbon steel
AISI SAE 1040
Carbon steel
ASTM A29 gr 4047
Carbon steel
AISI SAE 1040
Alloy steel
ASTM A320 L7
Aluminium + Bronze + Steel
Carbon steel
API 5LX gr X52
Nitrited alloy steel +
AISI SAE 9840 +
Bronze
ASTM B427 Alloy UNS No. C90800
Nitrile rubber
Bronze
ASTM B427 Alloy UNS No. C90800
Carbon steel
ASTM A283 gr D
Stainless steel
ASTM A479 type 304
Stainless steel
ASTM A193 B8
Housing
Pinion
Piston
End flange
Rack
Shaft
Cylinder gasket
Shoulder washer
Nut
Spring retainer disk
Rack spacer rod
Cylinder tube
Tie rod
Thrust bearing screw
Spring
Sealing washer
Sealing washer
Sliding block
Piston guide sliding ring
Retainer ring
Screw
O - ring
O - ring
Nut
Nut
Washer
Washer
Spring pin
Travel stop screw
Screw
Vent plug
Spacer tube
Manual override
jackscrew
O - ring
Travel stop screw
Handwheel
Washer
Screw
Equivalent to US standards
Qty
1
1
1
1
1
1
2
2•
2
1
1
1
4
1
1
2•
1•
1
1•
2•
2
2•
1•
8
1
1
2
4
1
1
1
1
1
1
1
1
1
1
• Recommended spare parts
Pentair reserves the right to change the contents without notice
page 12
RPS Pneumatic Actuator
C
J
H
overall dimensions for models 15 to 120S2
W
A
E
U
G
B
D
F
Vent
S
ø X Pneumatic
connection
Dimensions in mm
ø X
Air Consumpt.
Weight
Model
RP 15S2A1
RP 15S2B1
RP 15S2C1
RP 15S2A2
RP 15S2B2
RP 15S2C2
RP 30S2A1
RP 30S2B1
RP 30S2C1
RP 30S2A2
RP 30S2B2
RP 30S2C2
RP 60S2A1
RP 60S2B1
RP 60S2C1
RP 60S2A2
RP 60S2B2
RP 60S2C2
RP 120S2A1
RP 120S2B1
RP 120S2C1
RP 120S2A2
RP 120S2B2
RP 120S2C2
A
B
C
D
E
F
569
16012017539441
569
16012017539441
569
16012017539441
730
16012017555541
730
16012017555541
730
16012017555541
717
215154206511 54
717
215154206511 54
717
215154206511 54
938215 154 20673254
938215 154 20673254
938215 154 20673254
85825520025060866
85825520025060866
85825520025060866
1111255200250861 66
1111255200250861 66
1111255200250861 66
1015308260310 70582
1015308260310 70582
1015308260310 70582
1300308260310 99082
1300308260310 99082
1300308260310 99082
G
H
J
S
U
55140 80353 5
55140 80353 5
55140 80353 5
55140 80514 5
55140 80514 5
55140 80514 5
70164100460 7
70164100460 7
70164100460 7
70 164100 681 7
70 164100 681 7
70 164100 681 7
85 204120 54815
85 204120 54815
85 204120 54815
85 204120 80115
85 204120 80115
85 204120 80115
100 270160 63528
100 270160 63528
100 270160 63528
100 270160 92028
100 270160 92028
100 270160 92028
W
NPT
501/4
501/4
501/4
501/4
501/4
501/4
651/4
651/4
651/4
65 1/4
65 1/4
65 1/4
85 1/2
85 1/2
85 1/2
85 1/2
85 1/2
85 1/2
100 1/2
100 1/2
100 1/2
100 1/2
100 1/2
100 1/2
(litres)
0.9
0.9
0.9
0.9
0.9
0.9
2
2
2
2
2
2
4
4
4
4
4
4
8
8
8
8
8
8
(Kg)
18
18
18
25
25
25
36
36
36
51
51
51
65
65
65
86
86
86
127
127
127
174
174
174
Notes
- Dimensions and weights given are without optional bracket
- For mounting flange details see separate coupling dimensions leaflet
- W = maximum allowable mounting bracket dimensions (pneumatic cylinder side)
Pentair reserves the right to change the contents without notice
page 13
RPS Pneumatic Actuator
øC
J
H
overall dimensions for models 120S3
W
A
E
G
U
Vent
F
B
D
S
ø X Pneumatic
connection
Dimensions in mm
ø X
Air Consumpt.
Weight
Model
RP 120S3A1
RP 120S3B1
RP 120S3C1
RP 120S3A2
RP 120S3B2
RP 120S3C2
A
B
ø C
D
E
F
1013308400310 70382
1013308400310 70382
1013308400310 70382
1299308400310 98982
1299308400310 98982
1299308400310 98982
G
H
J
S
Notes
- Dimensions and weights given are without optional bracket
- For mounting flange details see separate coupling dimensions leaflet
- W = maximum allowable mounting bracket dimensions (pneumatic cylinder side)
Pentair reserves the right to change the contents without notice
U
100 270160 647
100
100 270160 647
100
100 270160 647
100
100 270160 933
100
100 270160 933
100
100 270160 933
100
page 14
W
NPT
100 1/2
100 1/2
100 1/2
100 1/2
100 1/2
100 1/2
(litres)
16
16
16
16
16
16
(Kg)
172
172
172
207
207
207
RPD/RPS Pneumatic Actuator
sizing criteria
Valve data required
Break to open torque
Required torque to move the valve away from its closed position under the full differential pressure.
This torque value must take into account the possible sticking effect which could affect the valve if
it is closed for a long time.
Reseating torque
Required torque to close the valve under the full differential pressure.
Break to close torque
Required torque to move the valve away from its open position with maximum working pressure in
the pipeline.
This torque value can be high in the case of “double block and bleed” ball valves.
End to open torque
Required torque to fully open the valve.
Running torque
Required torque to actuate the valve in opening and in closing without differential pressure along
the angular stroke except the fully open and fully closed positions where the required torques are
those listed above.
Dynamic torque
Required torque to actuate the valve in opening under the medium flow through the valve. This
torque value is high particularly on modulating service and when the medium speed and specific
gravity are high.
The angular position where the dynamic torque occurs has to be defined.
Safety factor
It is essential to confirm if the above torque values include a safety factor. Depending on the
valve application additional safety factors may have to be considered over and above those
recommended.
Maximum allowable stem torque
Maximum torque the valve stem can withstand.
Valve stem dimensions
Operating conditions data required
• Supply medium pressure range (minimum, normal, maximum)
• Type of actuator: double acting or spring return to close or spring return to open
• On-Off or Modulating service
• Frequency of operation and required operating times
Actuator sizing general criteria
A safety factor must be included during sizing if not included in the figures supplied by the valve
manufacturer.
The safety factor value has to be defined as a function of the valve type and size, of the working
condition and of the operating time. The safety factor is usually included in the range from 1.2 to
1.5: higher values have to be employed in case of extreme working conditions (for instance in case
of low temperature, dirty and/or high viscosity medium, very infrequent operation, modulating
service, short operating time).
The output torques values listed in the performance tables of actuators do not include a safety
factor but are the minimum guaranteed torques.
Pentair reserves the right to change the contents without notice
page 15
RPD/RPS Pneumatic Actuator
sizing criteria
RPD actuators, because of the rack and pinion mechanism, have a “constant” output torque with
a fixed supply pressure. For actuator sizing the following comparisons between the valve data,
including the safety factors, and the actuator data have to be performed.
• Check that the actuator output torque, with minimum supply pressure, exceeds all the valve
required torques
• During operation the actuator provides, along its full travel, only a torque equal to the required
valve torque. No problems will occur if the actuator output torque, as listed in the performance
table, exceeds the valve maximum allowable stem torque.
But if there is the possibility that the valve stops along its stroke, due to abnormal conditions, it
is necessary to check that the actuator output torque, with the maximum supply pressure or with
the regulated pressure, if a pressure regulator is fitted on the pneumatic supply, does not exceed
the valve maximum allowable stem torque and the actuator max operating torque
Torque
Sizing of RPD double acting actuators
0°
Closed
45°
Angular position
90°
Open
Sizing of RPS single acting actuators
RPS single acting spring return actuators can be used as spring to close or spring to open.
Sizing of RPS spring to close actuators
Spring operation
Torque
For actuator sizing the following comparisons between the valve data, including the safety factors, and the actuator data have to be performed.
• Check that the “spring ending torque” of the actuator exceeds the valve “reseating torque” with maximum differential pressure
• Check that the “air starting torque” of the actuator, with minimum supply pressure, exceeds the valve “break to open torque” with maximum
differential pressure
• Check that the “spring starting torque” of the actuator exceeds the valve “break to close torque” with maximum working pressure in the pipeline
• Check that the “air ending torque” of the actuator, with minimum supply pressure, exceeds the valve “end to open torque”
• Where a valve “dynamic torque” is present, check that it is overridden by the actuator “air intermediate torque” with minimum supply pressure.
“Air intermediate torque” is calculated by the formula: AIT = (AST + AET)/2. For a more accurate sizing BIFFI should be consulted
• When required, since there is the possibility that the valve stops along its angular stroke because of abnormal conditions, it is necessary to check that
the actuator “spring starting torque” and the “air starting torque”, with maximum supply pressure or with the regulated pressure, do not exceed the
valve maximum allowable stem torque and the actuator maximum operating torque
RPS (spring to close)
AIR STROKE
AST
SET
SPRING STROKE
0°
Closed 45°
Angular position
SST
AST = Air Starting Torque
AET = Air Ending Torque
SST = Spring Starting Torque
SET = Spring Ending Torque
AET
90°
Open
Sizing of RPS spring to open actuators
Spring operation
Torque
For actuator sizing the following comparisons between the valve data, including safety factors, and the actuator data have to be performed.
• Check that the “air ending torque” of the actuator, with minimum supply pressure, exceeds the valve “reseating torque”, with maximum differential
pressure
• Check that the “spring starting torque” of the actuator exceeds the valve “break to open torque” with maximum differential pressure
• Check that the “air starting torque” of the actuator, with minimum supply pressure, exceeds the valve “break to close torque” with maximum working
pressure in the pipeline
• Check that the “spring ending torque” of the actuator exceeds the valve “end to open torque”
• Where a valve “dynamic torque” is present, check that it is overridden by the actuator “spring intermediate torque”, which is calculated by the
formula: SIT = (SST + SET)/2. For a more accurate sizing BIFFI should be consulted
• When required, since there is the possibility that the valve stops along its angular stroke, because of abnormal conditions, it is necessary to check
that the actuator “spring starting torque” and the “air starting torque”, with maximum supply pressure or with the regulated pressure, do not exceed
the valve maximum allowable stem torque and the actuator maximum operating torque
RPS (spring to open)
SST
SPRING STROKE
AST
AET
AIR STROKE
SET
0°
Closed Pentair reserves the right to change the contents without notice
45°
Angular position
90°
Open
page 16
AST = Air Starting Torque
AET = Air Ending Torque
SST = Spring Starting Torque
SET = Spring Ending Torque
RPD/RPS Pneumatic Actuator
control system
General
BIFFI has the ability to apply advanced
engineering technology to design and
manufacture of pneumatic controls and
accessories.
The experience and knowledge acquired in
the actuator industry allow BIFFI to meet with
the highest requirements for control modes
and operating conditions by correct selection
of schematics, components, materials and
protection treatment.
The actuator service can be On-Off or
Modulating. Actuator control can be local or
remote by electric or pneumatic signals.
The control system can include devices for
automatic operation or stay put in case of
emergency (electric or pneumatic supply
failure, high temperature, low or high pipeline
pressure etc.).
For heavy duty service or special working
conditions (for example low working
temperature, sour gas supply, special
emergency operation, etc.), control valves
specially designed and manufactured by BIFFI
can be supplied.
Control systems can either be mounted on
a panel or enclosed inside a weatherproof
cabinet.
Control systems can either be supplied
separately or assembled on the actuator.
The actuator housing has dedicated threaded
holes for the mounting of control systems and
accessories.
Main components of the control system
- Stop valves, check valves
- Air conditioners (filter, pressure regulator with pressure gauge, lubricator)
- Air storage tanks with accessories (relief valve, pressure gauge with stop valve, drain plug).
Standard air tanks are designed, manufactured and tested according to ISPESL Standard. If
required the tank can be supplied in accordance with different codes like ASME Vlll DIV. 1,
SNCT/France, BS/UK, TÜV/Germany, etc.
- Solenoid valves, manual valves, pneumatic pilot valves
- Flow regulators
- Quick exhaust valves
- Pressure switches - pneumatic or electric
- Terminal enclosures
- Positioners - pneumatic or
electropneumatic
- I/P converters
Features
• The standard components have the body in aluminium.
Brass and stainless steel versions can be supplied
• The standard directional control valves are spool type. Poppet type valves are available
• The standard solenoid valves are air pilot operated. Direct solenoid operated valves are available
• Manual override for solenoid valves is available
• Manual reset is available for solenoid valves and for pneumatic pilot valves
• The electrical component enclosures can have explosionproof and/or weatherproof protection.
The explosionproof enclosures are in accordance with CENELEC Standards EN 50014 and EN
50018. Enclosures in accordance with UL or CSA Standards can be supplied. Components
suitable for use in intrinsically safe circuits are available
• Terminals enclosures with increased safety protection are available
• The pneumatic connections are in copper pipe and brass fittings as standard; stainless steel can
be supplied on request
• Standard weatherproof cabinets for control systems are in carbon steel. Glass reinforced
polyester and the stainless steel on request
Pentair reserves the right to change the contents without notice
page 17
Control System for Pneumatic Actuators
typical control systems for double acting actuators
On-Off service: four way control valve
1
manual
control
2
solenoid
control
pressurised air
atmospheric pressure air
pneumatic
pilot control
The diagram shows the simplest On-Off
control. The gas supply pressure is applied to
one side of the cylinder and exhausted from
the opposite side.
When the control valve (2) is actuated the
connections of supply and exhaust to the
cylinder chambers are reversed.
The control valve can have many types of
actuating devices (solenoid, manual control,
pneumatic pilot, spring, etc.).
The spring return control valves allow
“failsafe” operation.
dual solenoid
control
On-Off service: air fail safe system
1
This system allows “fail safe” operation when
the pressure in the gas supply line drops
below a set value.
The diagram shows the actuator (1 ) in the “fail
safe” condition. When the gas supply pressure
drops below the pressure switch (5) set point,
the pneumatic supply to the solenoid valve (6)
pilot is exhausted and the actuator moves to
the “fail safe” position by using the gas stored
in the tank (4). The tank is connected to the
gas supply through the check valve (3).
6
5
4
3
pressurised air
pressurised air (low pressure)
atmospheric pressure air
2
1
2
3
electropneumatic
positioner
4
pneumatic
positioner
Modulating service
5
P
P
pneumatic
control signal
electric
control signal
pressurised air (supply)
reduced pressure air (opening chamber)
reduced pressure air (closing chamber)
Pentair reserves the right to change the contents without notice
page 18
When modulating control is required as a
function of a pneumatic or electric control
signal, a positioner (5) is used, which controls
the supply to the actuator cylinder to keep the
valve in the required angular position.
The positioner has a mechanical linkage to the
actuator, for a feedback of the valve position.
Control System for Pneumatic Actuators
typical control systems for spring return actuators
On-Off service: three way control valve
The diagram shows the simplest On-Off
control. The control valve (2) has two
positions. In one position the gas supply
pressure is connected to the cylinder chamber,
and the actuator performs the “pneumatic”
operation. In the other position the cylinder
is connected to the exhaust and the actuator
moves under the operation of the spring.
The control valve can have many types of
actuating devices (solenoid, manual control,
pneumatic pilot, spring, etc.).
Spring r eturn control valves allow
“fail safe” operation.
1
manual
control
2
solenoid
control
pneumatic
pilot control
pressurised air
atmospheric pressure air
On-Off service: quick spring operation
1
When fast action is required under spring
operation, a quick exhaust valve (3) is installed
in the cylinder port to exhaust the gas from
the cylinder directly to the atmosphere.
When the control valve (2) opens to the
atmosphere a differential pressure is created
across the quick exhaust valve (3) causing it
to open.
The resultant high flow capacity from cylinder
to atmosphere allows quick spring operation
of the actuator.
3
2
pressurised air
atmospheric pressure air
Modulating service
When modulating control is required as a
function of a pneumatic or electric control
signal, a positioner (5) is used, which controls
the supply to the actuator cylinder to keep the
valve in the required angular position.
The positioner has a mechanical linkage to the
actuator, for a feedback of the valve position.
1
4
2
3
5
P
pneumatic
positioner
pneumatic
control signal
electropneumatic
positioner
P
electric
control signal
pressurised air (supply)
reduced pressure air
Pentair reserves the right to change the contents without notice
page 19
RPD/RPS Pneumatic Actuator
pneumatic positioner assembly
Overall dimensions
Actuator with pneumatic positioner
G
B
Y Signal or pressure
gauge
Y Signal or pressure gauge
X Pneumatic supply
For the missing dimensions, please refer to the
“Base Construction” leaflets RPD-BU-E and
RPS-BU-E
= =
C
Note
F
E
D
A
Dimensions in mm
X
Y
Model
A
RP 15
RP 30
RP 60
RP 120
203
123905018 34 96
1/41/8
210121955718 34 94
1/41/8
223
131957018 34 104
1/41/8
233
146958018 34 119
1/41/8
B
C
D
E
F
G
NPTNPT
Note
Overall dimensions
For the missing dimensions, please refer to the
“Base Construction” leaflets RPD-BU-E and
RPS-BU-E
Actuator with pneumatic positioner and limitswitch box
3/4 NPT Threaded hole
cable entry
A
D
E
F
E
C
C
Y Signal or pressure gauge
Y Signal or pressure gauge
160
F
C
X Pneumatic supply
O
N
l
Dimensions in mm
X
Y
Model
ABCDE F GHI L MNONPT
NPT
RP 15
RP 30
RP 60
RP 120
19421921097
19421921097
19421921097
19422521097
10285
10285
10285
10891
114 114 141 410110 34
114 114 141 410110 34
114 114 141 410110 34
114 12014741016534
Pentair reserves the right to change the contents without notice
18
18
18
18
1/4 1/8
1/4 1/8
1/4 1/8
1/4 1/8
page 20
RPD/RPS Pneumatic Actuator
coupling dimensions
View from Y
View from X
=
øC
No. 4 threaded
holes
=
=
=
B ±0.2
=
Flow line
=
B ±0.2
-0,1
E 0
-0,1
E 0
øC
No. 4 threaded
holes
A ±0.2
=
=
A ±0.2
Y
H
J
=
G
K
=
J
D
L
=
K
=
-0,5
øF 0
-0,2
øM0
X
Dimensions in mm
Model
15
30
60
120
A
B
ø C
D
E
ø F
G
H
K
J
49.5
49.5
M8
10162123 66
303
72.1
72.1
M10
12 222925 92
323
88.4
88.4
M12
15 283734 112
423
9999M16
23374945 132
553
L
øM
140
40
16450
204
60
270
75
Notes
1. Both actuator flanges can be used for either mounting on the valve or ancillary equipment
(positioner, limit switch box, etc.)
2.The output shaft has equal ends but with flat surfaces at 90°
3.The flat surfaces of the output shaft are shown for actuator in closed position
Pentair reserves the right to change the contents without notice
page 21
RPD/RPS Pneumatic Actuator
mounting holes for accessories
B ±0.2
=
front side
= =
B A ±0.2
=
F
G
øE
No. 4 threaded
holes
F
D
H
top view
M ±0.2
L
= =
A ±0.2
K
back side
øE
No. 4 threaded
holes (optional)
Dimensions in mm
Model
15
30
60
120
A
B
C
D
ø E
55
70
88
124
110
125
160
190
12.5
15
16
18
43
56
68
82
M8
M10
M12
M16
F
G
H
K
L
M
14
16
19
23
17
35
35
50
98
120
150
183
114
136
160
210
67
80
105
124
181
216
265
334
Notes
For the assembly of accessories on the actuator top see “coupling dimensions” on the front page
Pentair reserves the right to change the contents without notice
page 22
RPD/RPS Pneumatic Actuators
limit switch box assembly
A
D
F
G
C
E
B
3/4 NPT threaded hole
(cable entry)
Note
• The limit switch box is shown in its standard
position on the actuator (cable entry on the
actuator front).
If required, the box can be rotated 90° by
90°.
Dimensions in mm
ModelA B C D EFG
RP 15
RP 30
RP 60
RP 120
194
194
194
194
200
203
213
225
210
210
210
210
97
97
97
97
Pentair reserves the right to change the contents without notice
83
85
95
108
66
68
78
91
114
114
114
114
page 23
RPD/RPS Pneumatic Actuator
coding mode
Coding mode
Code no.
2
Actuator model
015 = RP 15
030 = RP 30
060 = RP 60
120 = RP 120
121 = RP 120 D3 and RP 120 S3
Type
1 = D1
2 = D2 and D3
3 = S2A1 and S3A1
4 = S2B1 and S3B1
5 = S2C1 and S3C1
6 = S2A2 and S3A2
7 = S2B2 and S3B2
8 = S2C2 and S3C2
Seals
0 = Nitrile rubber
1 = Fluoro carbon rubber (Viton)
2 = Fluorosilicon rubber
Version
Standard version
01 = with front holes and without jackscrew override
04 = with front holes and with jackscrew override
Special version
02 = with front and back holes and without jackscrew override
05 = with front and back holes and jackscrew override
Pentair reserves the right to change the contents without notice
page 24
2
0
X X
X
A B
Y Y