NOTES
"A"
ANSI R.J. GASKET
D
F
(TYP.)
3
C
A
C
B
"B"
SECTION "A"-"A"
RAISED FACE BLIND
6"
8"
10"
12"
14"
16"
80
8
8
100
12
200
15
150
250
15
18
DN
20
25
40
4"
100
50
80
6"
150
10"
250
14"
350
200
300
400
18"
450
24"
600
30
500
GAP
12
12
16
16
19
22
28
34
41
47
50
57
60
70
79
PIPE SIZE
NPS
171
114
19
276
219
19
22
219
337
DN
GAP
25
31
448
DIM.
DIM.
DIM.
DIM.
21
83
38
6
A
70
92
108
146
191
264
318
397
454
489
562
610
679
600# RF.
B
27
43
55
83
108
162
212
265
315
346
397
448
497
117
654
679
124
133
133
171
279
349
432
518
575
638
702
752
899
53
165
78
102
154
203
255
303
333
381
429
478
575
203
241
318
394
483
572
635
705
775
832
991
70
76
89
89
102
114
114
127
133
146
152
178
57
80
GAP
DIM.
A
4"
100
150
22
25
31
165
203
51
M27x160
44
54
64
73
M27x145
24"
450
600
60
813
900# RF.
DIM.
B
DIM.
C
DIM.
W
108
235
76
83
190
67
518
346
559
114
695
212
315
397
394
533
616
86
25
30
50
38
8"
16
25
M20x115
12"
M27x140
16"
121
44
114
140
32
41
51
M27x125
NPS
3/4"
M27x185
8"
597
902
152
89
M33x215
M33x265
3"
40
36
33
41
50
80
6"
150
10"
250
14"
350
12"
16"
200
25
13
1"
1
1/"
2
2"
50
22
22
4"
100
34
41
8"
SIZE dxL
10
19
3/4"
3"
35
2500# RF.
DIM.
DIM.
DIM.
DIM.
95
41
10
16
B
C
W
20
16
73
21
40
22
114
41
146
70
28
194
78
229
76
80
6"
150
10"
250
200
16
47
60
73
83
27
143
53
232
102
384
198
314
473
546
154
248
108
171
273
368
64
70
89
89
438
102
619
114
540
114
122
149
162
190
89
114
DIM.
C
83
70
108
216
175
168
292
323.85 273
432
419.10 356
527
381.00 324
469.90 406
533.40 457
584.20 508
692.15 610
DIM.
A
44.5
50.8
68
95
DIM.
B
27
533
584
692
838
DIM.
C
89
T
JACK SCREW
SIZE dxL
10
22
28
41
54
508
273
324
356
406
457
508
610
318
394
483
572
635
705
775
832
991
22
28
32
11.91
7.94
7.94
11.11 16.67
1500# RJ.
DIM.
D
DIM.
F
DIM.
G
100
8"
200
300
248
318
371
438
489
546
613
673
794
10
11
11
14
16
17
17
17
21
14
17
17
23
27
30
30
33
37
323.85
72
20"
500
121
14"
102
127
M27x200
79
127
M27x220
105
152
64
89
DIM.
T
121
127
127
DIM.
W
57
12
269.88
100 469.90
28
12
211.14
149.22
400
9
12
123.82
49
16"
6
8
43
56
65
95
83
92
8
250
A
64
44
8
10"
150
DIM.
GAP
51
25
168
6"
57
8.7
8.7
80
4"
6.4
6.4
3"
DN
57
57
67
71
NPS
35
73
11.91
PIPE SIZE
51
57
11.91
11.91
9.52 13.49
44
JACK SCREW
SIZE dxL
67
11.91
7.94 11.91
7.94
DIM.
W
12"
44
7.94 11.91
7.94 11.91
749
635
194
168
22
22
8.7
7.94
124
210
8.7
8.7
575
241
124
25
35
44
48
60
73
168
273
324
419.10
356
112
533.40
457
144
692.15
91
584.20
533
559
D
156
181
241
308
362
419
467
DIM.
F
7.94
7.94
7.94
7.94
7.94
7.94
11.11
508
749
648 12.70
610
686
902
11.11
DIM.
DIM.
12
35
67
12
48
73
DIM.
T
G
41
12
57
12
64
12
73
12
83
17
92
17
594 12.70
20
772 15.87
27
102
111
20
133
JACK SCREW
PIPE SIZE
NPS
SIZE dxL
3/4"
GAP
DN
20
36
DIM.
DIM.
DIM.
6.4
8.7
28
44
130
102
7.9
11.9
38
54
60.3
34
108
60
171
101.6
72
157
114
86
8"
279
219
79
133
M27x315
146
M27x375
40
80
6"
150
10"
250
12"
M27x340
18. PRESSURE BLIND IS POSSIBLE TO BE USED FOR TEST
BLIND.
M27x285
M33x300
M33x370
44
82.6
57
127
91
229
200
109
300
149 406.4
130
342.9
42
89
168
273
324
229
273
368
438
540
619
83
133
168
203
279
340
425
495
F
6.4
7.9
10
11
13
14
17.5
17.5
T
G
28
8.7
41
11.9
51
14
64
16
83
20
23
30.2
33.3
99
117
133
W
JACK SCREW
SIZE dxL
54
57
76
83
95
95
91
152
M39x425
M33x430
M33x495
T
W
A
A
B
FINISH FACE
(TYP.)
PIPE SIZE
NPS
DN
26"
650
150# RF.
DIM.
A
722
DIM.
B
653
DIM.
W
140
28"
700
773
704
140
32"
800
877
806
140
36"
900
984
30"
34"
38"
750
850
950
823
931
1041
755
857
907
957
140
180
180
180
1150 1252 1159
180
40"
44"
BLINDS & SPACER
OVER 24" (DN600)
M27x240
M33x400
M33x280
M33x350
140
DIM.
D
46"
111
127
73
M33x305
86
95
M39x300
133
DIM.
47
3"
2500# RJ.
C
180
79
M27x255
95
1050 1143 1058
289
127
DIM.
B
42"
85
M27x210
121
15. JACK SCREWS ARE REQUIRED WHERE PRESSURE BLIND
OR VAPOR BLIND OR SPACER IS SHOWN ON THIS DWG.
16. TAPPED HOLES ON FLANGES AND JACK SCREWS ARE
NOT REQUIRED WHERE FLANGES MATING WITH CAST IRON.
17. THE HOLE DIAMETER WILL BE SAME AS FLANGE BOLTS
DIAMETER.
121
27
M27x255
300
121
DIM.
M27x220
12"
SIZE dxL
79
DIM.
60
M27x235
JACK SCREW
73
50.8
A
36
76
67
W
M27x285
50
30 DIA. HOLE
470
DIM.
524
100
178
190
235
318
394
900# RJ.
616
4"
165
C
406
76
152
DIM.
14. ALL FLANGES 12"(DN300) & LARGER SHALL BE SUPPLIED
WITH TWO THREADED HOLES FOR JACK BOLTING DIA.
OF TAPPED HOLES SAME AS JACK SCREWS SHOWN ON
THIS DWG.
M27x245
73
140
143
600
89
114
168
219
54
111
133
450
B
25
133
124
24"
M27x210
350
381.00
81
DIM.
1"
1
1/"
2
2"
83
102
18"
M20x190
54
STAMP PIPE SIZE
PRESSURE RATING
& MATERIAL IN
8 mm LETERS.
FLG. BOLTS HOLE DIA.
(TYP.)
16
67
HOLE DIA. SAME AS
457
165
89
219
470
413
356
60
48
270
419
7.94
241
489
724
DIM.
T
7.94 11.91
146
102
114
381
6.4
302
654
6.4
DIM.
G
7.94 11.91
349
603
DIM.
F
6.4
90
34
162
324
64
89
114
211.14 168
269.88 219
600# RJ.
DIM.
D
127
W
DIM.
A
91
140
600
GAP
81
48
149.22
211
400
500
60
66
112
450
34
82.55
137
54
27
50.80
50
300
24"
20"
PIPE SIZE
116
33
18"
JACK SCREW
89
20
M27x210
M27x185
77
GAP
DN
100
60
835
99
25
4"
73
500
1"
1
1/"
2
2"
M20x165
133
83
PIPE SIZE
48
M27x200
67
74
600
M27x170
61
300
24"
25
45
400
350
20"
35
67
54
M27x165
M27x150
95
133
150
450
19
686
123.82
250
14"
105
124
42
18"
16
54
80
M27x140
DIM. JACK SCREW
T
SIZE dxL
41
68.28
200
10"
28
38
42.86
30
100
6"
DIM.
B
DIM.
A
30
40
3"
10
124
102
448
749
1"
1
1/"
2
2"
3/4" 20
4"
89
635
497
GAP
M27x170
DN
51
610
686
105
79
NPS
T
508
629
DN
22
76
121
457
6
NPS
13
102
572
6
PIPE SIZE
64
64
514
451
SIZE dxL
10
387
406
6
JACK SCREW
51
356
324
470
572
95
772
38
273
318
66
73
651
330
162
500
M20x140
350
47
594
270
265
286
20"
41
18"
250
483
168
200
432
400
13
64
DN
3"
50
53
PIPE SIZE
NPS
47
16"
70
102
600
46
537
28
124
27
W
24"
500
359
419
44
495
10
C
43
248
34
356
41
B
450
30
40
54
89
1500# RF.
18"
300
400
41
DIM.
152
28
300
DIM.
787
32
89
127
T
.
.D
600
92
101
603
114
250
24
146
60
DIM.
O
24"
500
527
105
219
18
200
35
168
305
200
38
14"
89
100
150
8"
22
51
114
31
10"
38
114
178
12"
10
13
83
48
27
19
16
27
20"
21
92
70
15
12
W
64
108
80
DIM.
C
.
G
450
20"
489
105
12
DIM.
FL
18"
57
66
73
432
95
12
16
34
14"
6"
10
12
B
12
16
DIM.
140
82
349
86
SIZE dxL
8
DIM.
.
.D
300
350
292
67
57
67
76
JACK SCREW
6
DIM.
206
M27x125
M27x115
8
300# RF.
50
350
12"
16"
M27x100
28
10"
M20x90
M27x100
M27x100
8
A
O
250
400
114
127
168
216
57
T
DIM.
76
19
1mm 3mm
.
G
14"
89
W
597
19
47
C
787
A
16
19
22
32
121
6"
20
40
GAP GASKET DIM.
FL
10"
12"
200
108
108
64
28
41
102
102
540
140
100
150
8"
749
4"
25
4"
432
635
25
13
610
508
1"
1
1/"
2
2"
3/4"
3"
13
714
41
16"
476
DN
10
DIM.
38
95
8"
362
356
6
NPS
76
76
603
19
6"
273
6
PIPE SIZE
64
34
40
80
298
JACK SCREW
SIZE dxL
6
25
1"
1
1/"
2
2"
50
241
64
3
114
21
3"
190
38
51
578
67
16
152
38
457
16
25
99
546
20
3/4"
168
406
1"
1
1/"
2
2"
20"
89
324
PIPE SIZE
16"
16
133
511
34
12"
12
406
600
8"
121
28
24"
3"
79
60
48
25
500
3
27
83
21
21
38
70
64
102
24
27
3/4"
21
9
12
300
350
450
NPS
54
DIM.
T
12
400
18"
20"
9
DIM.
W
FOR "T" DIM.
7 & OVER
4"
5
8
50
DIM.
C
13. FOR CORROSION ALLOWANCES MORE THAN 1.6 ADD TWO
TIMES OF CORROSION ALLOWANCE TO THE BLANK THK.
ACCORDING TO THE RELEVANT LINE SPEC.
3
3"
5
40
DIM.
B
FOR "T" DIM.
6 & UNDER
25
150# RF.
3
1"
1
1/"
2
2"
3/4" 20
GAP GASKET DIM.
A
1mm 3mm
75
DN
75
NPS
11. FOR LINES LARGER THAN 24"(DN600), SEPERATE BLINDS
AND SPACERS ARE REQUIRED.
12. JACK SCREWS ARE NOT REQUIRED FOR BLINDS 10"(DN250)
& SMALLER.
SECTION "B"-"B"
RING JOINT BLIND
152
PIPE SIZE
7. BLINDS ARE USUALLY INSTALLED AT BATTERY LIMITS &
WHERE NECESSERY TO FACILITATE ISOLATION OF INDIVIDUAL
OR GROUPS OF EQUIPMENT.
9. BLINDS INSTALLED IN PIPEWAYS SHALL BE GROUPED
TOGETHER IF POSSIBLE.
10. STAGGER BLINDS WHEN GROUPED IN HORIZONTAL OR
VERTICAL RUNS.
"A"
INSTALL JACK
SCREWS ON
HORIZONTAL L
C
GAP
JACK SCREW
SECTION "B"-"B"
6. PRESSURE BLINDS SHALL BE INDICATED ON FLOW DIAGRAMS
& DESIGNED PER THIS DRAWING.
8. BLINDS SHALL BE LOCATED SO THAT THEY WILL BE READILY
ACCESSIBLE, IF POSSIBLE PROVIDE PLATFORM AT TOWERS,
HOWEVER, PLATFORMS SHALL NOT BE PROVIDED FOR
INDIVIDUAL BLINDS UNDER ELEV.6000 FROM GRADE.
d
"B"
SECTION "A"-"A"
(TYP.)
IN THE SAME BOLT
CENTER DIAMETER
L
"A"
INSTALL JACK
SCREWS ON
HORIZONTAL L
C
5. JACK SCREWS SHALL BE SQUARE HEAD, CAP POINT CASE
HARDENED STEEL SETSCREWS. THREADED FULL LENGTH
WITH UNC. CLASS 2A THREADS ON M27 AND SMALLER &
BUN, CLASS 2A THREADS ON M30 AND LARGER.
FINISH FACE
4
W
D
GAP
"A"
4
HOLE DIA. SAME AS
FLG. BOLTS HOLE DIA.
B
3. MATERIAL: AS PER SP-50-4.HOLD FOR THOSE MATERIALS
NOT LISTED IN API-590 CALCULATION IS BASED ON ANSI B31.3.
4. THICKNESS "T" FOR 26" (DN650) PIPE & LARGER ARE
CALCULATED PER PARA 304.5.3 PAGE 28 OF THE
ANSI. B 31.3-1990 CODE FOR PRESSURE PIPNG, THK."T"
FOR 24"(DN600) PIPE & SMALLER ARE IN ACCORDANCE
WITH API 590-1985.
T
152
FOR "T" DIM
7 & UNDER
STAMP PIPE SIZE,
PRESSURE RATING
& MATERIAL IN 8mm
LETTERS
3
}
3
3
GROOVE FOR STD.
G
(TYP.)
}
A
W
A
HOLE DIA. SAME AS
FLG. BOLTS HOLE DIA.
"B"
FINISH FACE
T
A
FOR "T" DIMENSION
6 & UNDER
"B"
STAMP PIPE SIZE,
PRESSURE RATING
& MATERIAL IN 8mm
LETTERS
1. DESIGNATION IN "SI" UNITS IS USED FOR NOMINAL DIA.
2. ALL THICKNESS VALUES AND DIMENSIONS ARE IN mm.
1000 1093 1008
1100
1193
1109
48"
1200 1303 1210
56"
1400
52"
60"
1300 1404
1511
1311
1412
1500 1627 1514
180
180
38
M27x125
43
M27x135
43
46
51
51
M27x135
M27x135
M27x135
M27x135
54
M27x150
59
M27x150
56
62
180
64
75
180
M27x125
38
180
180
THIS DRAWING SUPERSEDES DRAWING No.D-O-5015
DIM. JACK SCREW
T
SIZE dxL
M27x150
C
B
A
REV.
PRESSURE BLIND DETAILS
M27x150
M27x175
80
M27x175
M27x175
DATE
NO REVISION PERMITTED UNLESS APPROVED BY STANDARD ORGANIZATION
M27x150
69
DESCRIPTION
IRANIAN PETROLEUM STANDARDS
DATE
DRAWING No.
IPS-D-PI-119
SHEET
1
1
REV.