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Pressure Seal Check Valve

Pressure Seal Check Valves are ideal for high pressure steam, liquid, catalytic reformers, hydro crackers and other tough services. In the tough world of High pressure, High temperature valve applications, Pressure Seal Check Valve continue to provide a wide range of industries with a safe, leak free, pressure containing boundary. These valves are unidirectional and restrict flow from opposite direction. These are best suited for moderate velocity conditions. Check valves are normally designed for horizontal flow condition, but can also be installed in vertical pipeline, but in vertical pipeline, the flow shall be in upwards direction and under the disc. The basic concept of pressure seal valves is that the initial cover pull up bolts tighten the cover which inturns seals the pressure seal gasket to the body. Then the system pressure assist for more force to seal the gasket. Hence, as system pressure increases, the potential for leakage through the body/bonnet joint decreases.
Enquiry
pressure seal check valve
ANSI pressure seal check valve
high pressure seal check valve
cast steel pressure seal check valve
API 600 pressure seal check valve
stainless steel pressure seal check valve China
pressure seal check valve
ANSI pressure seal check valve
high pressure seal check valve
cast steel pressure seal check valve
API 600 pressure seal check valve
stainless steel pressure seal check valve China

Pressure seal swing check valve

Feature

  • Only one sealing face is designed on the valve body and valve disc,
  • Full stellite overlay seat sealing surface
  • Good for manufacturing process and easy to maintain.
  • Use flexible and woven graphite collaboration type packing.
  • Absolute bonnet joint leak proof.
  • Optional by-pass design.
  • Optional designed with a Damping Cylinder.
  • Pressure Seal Check Valve

Specifications

Size:2"-16"

Pressure:Class900-2500

Design and Manufacture: API600 ,ASME B 16.34, API6D, BS5351

Inspection and Test: API598

End flange dimension: ASME B16.5 (for NPS≤24); AMSE B16.47 series B

Socket-weld dimension: ASME B16.11

Face to face and end to end: ASME B 16.10

Pressure/temperature rating: ASME B16.34

Materials: WCB, LCB, LCC, CF8, CF8M, CF3, CF3M, A105, LF2, F11, F22, F5, F304, F316, F304L, F316L

ANSI Pressure seal check valve materials list

No. Parts Material
1 Body ASTM A216 Gr.WCB
2 Seat ring ASTM A105+13Cr
3 Disc ASTMA216 Gr.WCB+13Cr
4 Hinge ASTM A216 Gr.WCB
5 Disc cover ASTM A276 410
6 Screw ASTM A276 410
7 Locking pin ASTM A276 410
8 Locking ring ASTM A105
9 Seal ring ASTM A182 F304
10 Gasket ASTM A182F6a
11 Segment ring ASTM A182F6a
12 Cover ASTM A216 Gr.WCB
13 Stud ASTM A193 Gr.B7
14 Nut ASTM A194 Gr.2H
15 Eye bolt C.S.
16 Bonnet ASTM A216 Gr.WCB
17 Bolt S.S
18 Pin ASTM A276 410
19 Hinge block ASTM A216 Gr.WCB

ANSI swing check valve dimension and weight（900~2500lb）

Class 900 size in. mm 2 50 2 1/2 65 3 80 4 100 6 150 8 200 10 250 12 300 14 350 16 400
L
(BW)		 in.
mm		 8.5
216		 10
254		 12
305		 14
356		 20
508		 26
660		 31
787		 36
914		 39
991		 43
1092
L1
(RF)		 in.
mm		 14.5
369		 16.5
419		 15
381		 18
457		 24
610		 29
737		 33
838		 38
965		 40.5
1029		 44.5
1130
L2
(RTJ)		 in.
mm		 14.62
371		 16.62
422		 15.12
384		 18.12
460		 24.12
613		 29.12
740		 33.12
841		 38.12
968		 40.88
1038		 44.88
1140
H in.
mm		 7.4
188		 8.27
210		 8.27
210		 8.5
216		 14.5
368		 20.12
511		 24.17
614		 27.76
705		 28.98
736		 29.76
756
WT
(Kg)		 in.
mm		 48
33		 63
44		 60
42		 122
76		 254
177		 511
383		 938
703		 1448
1128		 1723
1353		 1832
1463
L
(BW)		 in.
mm		 8.5
216		 10
254		 12
305		 16
406		 20
559		 28
711		 34
864		 39
991		 42
1067		 47
1194
Class 1500 L1
(RF)		 in.
mm		 14.5
369		 16.5
419		 15
381		 18
457		 24
610		 29
737		 33
838		 38
965		 40.5
1029		 44.5
1130
L2
(RTJ)		 in.
mm		 14.62
368		 16.62
419		 18362
470		 21.62
546		 27.75
705		 32.75
832		 39
991		 44.5
1130		 49.5
1257		 54.5
1384
H in.
mm		 10.43
265		 10.43
265		 10.63
270		 14.57
370		 18.7
475		 22.44
570		 24.8
630		 30.31
770		 31.3
795		 32.44
824
WT
(Kg)		 in.
mm		 58
40		 73
51		 71
69		 128
84		 332
228		 588
458		 1023
713		 1528
1148		 1852
1388		 2058
1542
L
(BW)		 in.
mm		 11
279		 13
330		 14.5
368		 18
457		 24
610		 30
762		 36
914		 41
1041		 - -
Class 2500 L1
(RF)		 in.
mm		 17.75
451		 20
508		 22.75
578		 26.5
673		 36
914		 40.25
1022		 50
1270		 56
1422		 - -
L2
(RTJ)		 in.
mm		 17.87
454		 20.25
514		 23
584		 26.88
683		 36.5
927		 40.87
1038		 50.88
1292		 56.88
1445		 - -
H in.
mm		 11.02
280		 12
305		 12.2
310		 14.57
370		 19.1
485		 21.42
544		 27.95
710		 31.5
800		 - -
WT
(Kg)		 in.
mm		 86
52		 113
88		 133
93		 213
158		 548
383		 988
638		 1598
1198		 2298
1723		 - -

For more details, please download the catalogue for reference or contact with us.

Pressure Seal Check Valvepressure seal check valve.pdf

Wenzhou Topnotch Machine Co.,Ltd is a professional leader China pressure seal check valve,ANSI pressure seal check valve,high pressure seal check valve,cast steel pressure seal check valve,API 600 pressure seal check valve,stainless steel pressure seal check valve manufacturer with high quality and low price.Welcome to contact us!

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