Center Line
Series 200 – 225 – 250
Quality is designed into Series 200, 225, and 250 butterfly
valves from Center Line. These valves feature a phenolicbacked cartridge seat and precision-machined parts to
assure years of dependable operation.
Stem Configuration:
Gives positive attachment for handles
or actuators. (Double “D”, 2" - 24")
Shaft Weather Seal:
(Below bushing on some models.)
Actuator Flange:
Accommodates all types
of actuators: handles, gear
operators, electric actuators,
and pneumatic actuators.
(2" - 24" per ISO 5211)
Bushings (4):
Stem bushing reduces torque
and isolates the stem from the
valve body, preventing seizure
of the stem due to corrosion in
the stem journal.
One-Piece Thru Shaft:
Ensures dependability
and positive disc positioning.
O-Ring:
Helps prevent stem leakage.
Seat Face:
Negates need
for flange gaskets.
Smooth Finished
Disc Flats:
These “mate” with
seat flats to give a
highly efficient seal;
prevents leakage into
shaft areas.
Precision Taper Pin
(two pins on Series
225 and 250):
Ensure positive,
vibration proof,
shaft to disc
connection. Field
replaceable.
Precision Profile Disc:
Provides bubble-tight
shut-off and assures
minimum torque and
longer seat life.
Phenolic Backed Seat:
Non-collapsible, stretch
resistant, blow out proof,
field replaceable.
Supported Shaft Seal:
Bonding of elastomer to
phenolic backing ring protects
against distortion, a common
cause of shaft leakage.
“Representative
Cutaway”
T: 562-426-2531 (U.S.) • T: 800-563-6302 (Canada) • www.cranevalve.com
CV-10
Rev. 0802
3
Center Line
Series 225 – 250
• Available in sizes 2" to 24".
• Pressure Rating: 285 psi at 100°F. Pressure/Temperature
rating above 100°F corresponds to ANSI B16.5 Class 150
for steel flanges.
• Available in Wafer or Lug style body.
• Wafer body features four alignment holes.
• Available in ANSI Class 300 Lug Body bolt pattern (2"-12").
• Ideal for on-off or throttling services.
• Available with handles (2" to 6"), manual gear operators,
electric actuators and pneumatic actuators (2" to 24").
Valve Seating Torques (In-Lbs.)
Valve
Size
50 PSI
2"
2 1/2"
3"
4"
5"
6"
8"
10"
12"
14"
16"
18"
20"
24"
136
152
224
380
451
875
1476
2451
3900
5189
10,985
13,946
14,695
29,738
Standard Disc Differential Pressure
100 PSI
150 PSI
200 PSI
142
160
229
392
477
946
1559
2613
4111
5467
11,569
14,688
15,478
31,321
148
168
234
404
503
1016
1642
2775
4323
5744
12,154
15,431
16,260
32,903
154
176
239
416
529
1087
1726
2937
4534
6022
12,738
16,173
17,043
34,486
285 PSI
164
189
247
436
572
1206
1867
3213
4893
6494
13,732
17,434
18,373
37,176
• Refer to Crane actuator bulletin for details of pneumatic and
electric actuators.
• Compatible with ANSI B16.1 Class 125 (Iron) and ANSI
B16.5 Class 150 (Steel) flanges or optional Class 300 (Steel)
Lug only.
• Bi-directional dead-end capability to 200 psi (2" to 12")
and 150 psi (14" to 24") is an available option.
• Valves 14" and larger are rated at a maximum 150 psi when
a companion flange is not used in dead end service.
• For bolting information, consult the Center Line Installation
and Maintenance Manual.
Seat Temperature Ratings
Temperature Rating °F
+10 to 180
-30 to 275
-30 to 225
+10 to 180
Material
Buna-N
EPDM (2"-16")
EPDM (18"-24")
Abrasive Resistant
Buna-N
Neoprene
Hypalon
Viton
High Temperature
Viton
+20 to 200
0 to 275
+10 to 275
+10 to 400
Although elastomers have an effective operating temperature range, when
used in valves, these ranges may have to be modified. The temperature
ranges shown in the table have been adjusted accordingly.
All torques shown on the chart were derived from test data using water at 60°F.
For torques using dry gases, multiply these numbers by 1.6. For torques involving
other media, please consult the factory.
For Low Temperature: While the seat materials selected for use in Center
Line butterfly valves are capable of withstanding lower temperatures
without damage, the durometer of the elastomer is changed. This
“hardening” of the seat may increase the operating torque beyond the
structural limits of the stem and/or the disc to stem configuration.
There is no safety factor included in the numbers shown on this chart. For actuator
sizing, Center Line recommends that these values be multiplied by 1.2 for single
valve applications, or 1.5 for 3-way (“tee”) applications.
For High Temperature: When using High Temperature Viton, the
operating pressure of the valve is reduced above 275°F.
For PTFE seats multiply the numbers shown on this chart by 2.0.
Under certain conditions, hydrodynamic torque can meet or exceed seating and
unseating torques. When designing valve systems, hydrodynamic torque must be
considered to help assure correct selection for the application.
CV Values – Valve Sizing Coefficients (US-GPM @ 1∆P)
Size
2"
2 1/2"
3"
4"
5"
6"
8"
10"
12"
14"
16"
18"
20"
24"
10°
0.06
0.10
0.20
0.30
0.50
0.80
2
3
4
6
8
11
14
22
20°
3
6
9
17
29
34
56
87
153
183
271
318
415
543
30°
7
12
18
36
61
94
154
238
417
500
740
867
1133
1482
40°
15
25
39
78
133
153
251
385
681
816
1208
1417
1851
2421
50°
27
45
70
139
237
257
422
654
1145
1372
2031
2382
3112
4069
60°
44
75
116
230
392
422
693
1073
1879
2252
3333
3909
5107
6678
70°
70
119
183
364
620
706
1158
1794
3142
3765
5573
6535
8538
11,165
T: 562-426-2531 (U.S.) • T: 800-563-6302 (Canada) • www.cranevalve.com
80°
105
178
275
546
930
1154
1892
2931
5132
6150
9104
10,676
13,948
18,240
CV-10
Rev. 0802
90°
115
196
302
600
1022
1320
2165
3353
5827
7037
10,416
12,215
15,959
20,869
9
Center Line
Series 225 – 250
BODY
C
L of valve
O
C
L of pipe
C
J Sq.
“F” Dia.
4 Holes Eq. Sp.
on “G” Dia. BC
From 2" to 24" Valves
DISC
E Dia.
E Dia.
H
D
D
A
A
N
B
B
“K” Bolt Circle
“L2” Dia.
“M2” No. of Holes
“K” Bolt Circle
“L1” Dia.
“M1” No. of Holes
Wafer Style Body
Lug Style Body
Dimensions
Valve
Size
2"
50
2 1/2"
65
3"
75
4"
100
5"
125
6"
150
8"
200
10"
250
12"
300
14"
350
16"
400
18"
450
20"
500
24"
600
10
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
A
B
C
D
E
F
G
H
J
K
300#
K
6 3/8
161.93
6 7/8
174.63
7 1/8
180.98
7 7/8
200.03
8 3/8
212.73
8 7/8
225.43
10 1/4
260.35
11 1/2
292.10
13 1/4
336.55
14 1/2
368.30
15 3/4
400.05
16 5/8
422.28
18 7/8
479.43
22 1/8
561.98
3 1/4
82.55
3 3/4
95.25
4
101.60
4 7/8
123.83
5 3/8
136.53
5 7/8
149.23
7 3/4
196.85
8 1/4
209.55
9 3/4
247.65
11
279.40
12
304.80
15
381.00
15
381.00
18
457.20
1 3/4
44.45
1 7/8
47.63
1 7/8
47.63
2 1/8
53.98
2 1/4
57.15
2 1/4
57.15
2 1/2
63.50
2 3/4
69.85
3 1/8
79.38
3 1/8
79.38
3 1/2
88.90
4 1/4
107.95
5 1/4
133.35
6 1/8
155.58
1 1/4
31.75
1 1/4
31.75
1 1/4
31.75
1 1/4
31.75
1 1/4
31.75
1 1/4
31.75
1 3/4
44.45
1 3/4
44.45
1 3/4
44.45
1 3/4
44.45
2
50.80
2
50.80
2 1/2
63.50
2 3/4
69.85
/2
12.70
1/
2
12.70
1/
2
12.70
5/
8
15.88
3/
4
19.05
3/
4
19.05
7/
8
22.23
1 1/8
28.58
1 1/4
31.75
1 1/4
31.75
1 5/16
33.34
1 5/8
41.28
1 5/8
41.28
3
76.20
/8
9.53
3/
8
9.53
3/
8
9.53
3/
8
9.53
3/
8
9.53
3/
8
9.53
7/
16
11.11
7/
16
11.11
7/
16
11.11
7/
16
11.11
7/
8
22.23
7/
8
22.23
7/
8
22.23
7/
8
22.23
2.76
70
2.76
70
2.76
70
2.76
70
2.76
70
2.76
70
4.02
102
4.02
102
4.02
102
6.50
165
6.50
165
6.50
165
6.50
165
6.50
165
0.39
10
0.39
10
0.39
10
0.47
12
0.55
14
0.55
17
0.67
17
0.87
22
0.95
24
0.95
24
1.06
27
1.26
32
1.26
32
2.36
60
2 3⁄4
69.85
2 3⁄4
69.85
2 3⁄4
69.85
2 3⁄4
69.85
2 3⁄4
69.85
2 3⁄4
69.85
3 3⁄4
95.33
3 3⁄4
95.33
3 3⁄4
95.33
3 3⁄4
95.33
6 1⁄2
165.10
6 1⁄2
165.10
6 1⁄2
165.10
6 1⁄2
165.10
4 3⁄4
120.65
5 1⁄2
139.70
6
152.40
7 1⁄2
190.50
8 1⁄2
215.90
9 1⁄2
241.30
11 3/4
298.45
14 1⁄4
361.95
17
431.80
18 3/4
476.25
21 1/4
539.75
22 3/4
577.85
25
635.00
29 1⁄2
749.30
5
127.00
5 7⁄8
149.23
6 5⁄8
168.28
7 7⁄8
200.03
9 1⁄4
234.95
10 5⁄8
269.88
13
330.20
15 1⁄4
387.35
17 3⁄4
431.80
-
CV-10
Rev. 0802
1
3
T: 562-426-2531 (U.S.)
L1
⁄8-11
300#
L1
L2
M1
⁄16
4
1-8
⁄8-11
17.46
3⁄ -10
4
17.46
3⁄ -10
4
17.46
3⁄ -10
4
17.46
3⁄ -10
4
20.64
3⁄ -10
4
20.64
7⁄ -9
8
20.64
1-8
23.81
1 1⁄8-7
23.81
-
1-8
-
16
11⁄8-7
-
16
11⁄8-7
-
20
11⁄8-7
-
20
5
⁄8-11
5
⁄8-11
5
⁄8-11
5
⁄4-10
3
⁄4-10
3
⁄4-10
3
⁄8-9
7
⁄8-9
7
5
11
⁄16
11
⁄16
11
⁄16
11
⁄16
13
⁄16
13
⁄16
13
⁄16
15
⁄16
15
12
300#
M1
8
2.72 kg
4
8
3.18 kg
4
8
4.54 kg
8
8
5.90 kg
8
8
8.17 kg
8
12
9.53 kg
8
12
15.44 kg
12
16
20.43 kg
12
16
33.60 kg
109 lbs.
49.49 kg 80.81 kg
135 lbs.
61.29 kg 101.70 kg
190 lbs.
86.27 kg 120.31 kg
316 lbs.
143.47 kg 206.57 kg
506 lbs.
229.74 kg 318.71 kg
M2
4
4.09 kg
4
5.90 kg
4
6.36 kg
4
8.63 kg
4
9.99 kg
4
14.07 kg
4
22.25 kg
4
32.69kg
4
47.67 kg
178 lbs.
224 lbs.
265 lbs.
455 lbs.
702 lbs.
• T: 800-563-6302 (Canada) • www.cranevalve.com
WAFER LUG
6 lbs.
4.09 kg
7 lbs.
5.90 kg
10 lbs.
6.36 kg
13 lbs.
10.90 kg
18 lbs.
13.17 kg
21 lbs.
17.25 kg
34 lbs.
30.42 kg
45 lbs.
45.40 kg
74 lbs.
65.38
325.4
381.0
428.5
474.7
573.3
300#
LUG
9 lbs.
9 lbs.
32.0
13 lbs. 13 lbs.
46.5
14 lbs. 14 lbs.
64.5
19 lbs. 24 lbs.
89.9
22 lbs 29 lbs
110.7
31 lbs. 38 lbs.
145.8
49 lbs. 67 lbs.
193.8
72 lbs. 100 lbs.
242.3
105 lbs. 144 lbs.
292.1
12.81
15
16.87
18.69
22.57
O
1.26
1.83
2.54
3.54
4.36
5.74
7.63
9.54
11.5
Center Line
Series 225 – 250
6
4
7
8
9
7
3
5
2
10
1
Bill of Materials (Series 225)
Item
1
2
3
4
5
6
7
8
9
10
Description
Body
Disc
Seat
Materials
Ductile Iron
Ductile Iron†
Buna-N or EPDM
Shaft
Taper Pin
Key
O-Ring
Bushing
Bushing
Bushing
416 Stainless Steel
316 Stainless Steel
Carbon Steel
Buna-N
PTFE
PTFE
PTFE
Optional Materials
No Options Available
Aluminum Bronze, 316 Stainless Steel, Monel
Neoprene, Hypalon, Abrasive Resistant Buna-N,
Low Temperature Viton, High Temperature Viton
2"-12": 17-4 PH, Monel
Monel
No Option Available
No Option Available
No Option Available
No Option Available
No Option Available
†
ENP plated for 2" - 12" valves
Bill of Materials (Series 250)
Item
1
Description
Body
2
3
Disc
Seat
Materials
Carbon Steel
A216 GR.WCB
316 Stainless
Buna-N or EPDM
4
5
6
7
8, 9, 10
Shaft
Taper Pin
Key
O-Ring
Bushing
316 Stainless Steel
316 Stainless Steel
Carbon Steel
Buna-N
PTFE
Optional Materials
316SS A351 GR.CF8M
Aluminum Bronze, Monel
Neoprene, Hypalon, Abrasion Resistant Buna-N, Low
Temperature Viton, High Temperature Viton
17-4 PH, Monel
Monel
No Option Available
No Option Available
No Option Available
T: 562-426-2531 (U.S.) • T: 800-563-6302 (Canada) • www.cranevalve.com
CV-10
Rev. 0802
11