Contact us

PN Casting Steel Swing Check Valve Low Pressure

  1. Home
  2. /
  3. Products
  4. /
  5. Check Valve
  6. /
  7. PN Casting Steel Swing...

Products

PN Casting Steel Swing Check Valve Low Pressure

Enquiry

Product Description

Design Specifications

Design standards Structure length Flange connection Test and inspection
GB/T12235 GB/T12221 GB/T9124.1,JB/T79,HG/T20592 GB/T26480

 

Pressure Test

Pressure rate Shell test (Mpa) Sealing test (Mpa) Temperature Suitable medium
1.6 2.4 1.76 ≤600℃ Water,Oil,Gas
2.5 3.75 2.75
4 6 4.4
6.3 9.45 6.93
10 15 11
16 24 17.6

 

Material of Main Parts

NO. Part Name Part Material
1 Body WCB,WC6,WC9,C5 CF8,CF8M,CF3,CF3M
2 Disc 25,1Cr13,2Cr131Cr18Ni9Ti OCr18Ni12Mo2TT 20cr1Mo1V,25CT2Mo
3 Stem 1Cr13,2Cr13,1Cr18Ni9Ti,0Cr18Ni12Mo2Ti 20Cr1Mo1V,25Cr2MoV
4 Flat cover 25,1Cr13,2Cr131Cr18Ni9Ti OCr18Ni12Mo2TT 20cr1Mo1V,25Cr2Mo
5 Gaske Flexible graphite &stainless steel
6 Bonnet WCB,WC6,WC9,C5,CF8,CF8M,CF3,CF3M
7 Stud 35CrMoA,OCr18Ni9,0Cr17Ni12Mo2,25Cr2MoV
8 Nut 45,35 CrMoA
9 Packing Flexible graphite,OCr18Ni9,0Cr17Ni12Mo2,25Cr2MoV
10 Gland cover r1320r13
11 Gland flange WCB,CF8,CF8M,CF3,CF3M,iCr18Ni9TLOCr18Ni12Mo2Ti
12 Yoke nut Copper alloy
13 Hand whee KTH330,QT400-17

 

PN16 Main External Dimension(Unit:mm)

DN L D D1 D2 b z-d
50 230 165 125 102 18 4-18
65 290 185 145 122 18 8-18
80 310 200 160 138 20 8-18
100 350 220 180 158 20 8-18
125 400 250 210 188 22 8-18
150 480 285 240 212 22 8-22
200 600 340 295 268 24 12-22
250 1050 405 355 320 26 12-26
300 650 460 410 378 28 12-26
350 1150 520 470 428 30 16-26
400 750 580 525 490 32 16-30
450 850 640 585 550 40 20-30
500 950 715 650 610 44 20-33
600 1350 840 770 725 54 20-36

 

PN25 Main External Dimension(Unit:mm)

DN L D D1 D2 b z-d
50 230 165 125 102 20 4-18
65 290 185 145 122 22 8-18
80 310 200 160 138 24 8-18
100 350 235 190 162 24 8-22
125 400 270 220 188 26 8-26
150 480 300 250 218 28 8-26
200 600 360 310 278 30 12-26
250 650 425 370 335 32 12-30
300 750 485 430 395 34 16-30
350 850 555 490 450 38 16-33
400 950 620 550 505 40 16-36
450 1050 670 600 555 46 20-36
500 1150 730 660 615 48 20-36
600 1350 845 770 720 58 20-39

 

PN40 Main External Dimension(Unit:mm)

DN L D D1 D2 b z-d
50 230 165 125 102 20 4-18
65 290 185 145 122 22 8-18
80 310 200 160 138 24 8-18
100 350 235 190 162 24 8-22
125 400 270 220 188 26 8-26
150 480 300 250 218 28 8-26
200 600 375 320 285 34 12-30
250 650 450 385 345 38 12-33
300 750 515 450 410 42 16-33
350 850 580 510 465 46 16-36
400 950 660 585 535 50 16-39
450 1050 685 610 560 57 20-39
500 1150 755 670 615 57 20-42
600 1350 890 795 735 72 20-48