Check Valve Series

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ANSI Swing Check Valve

manufacturer: Shanghai Fengqi Industry Development Co., Ltd.
Eml: sales@fengqi.sh.cn

Tel: 86 (21) 3652 8716
Mob: (86) 138 1635 6498

product drawing

ANSI swing check valves
ANSI swing check valves

Introductions

The function of check valve is to prevent the media backflow in the pipeline. Check valves are automatic valves, the hoist part depends on the flow media power to open or close. Check valve is only used in the one-way flow pipelines, preventing the media backflows, and avoiding the accidents.
Our check valves are designed and manufactured by ANSI B16.34 standard. Varieties include: Swing check valve, lift check valves, lift vertical check valve; Class 150lB ~ 900Lb; NPS 1 "~ 28" Operating temperature -40 ~ 570 ℃; Body materials: WCB, WC1 , WC6, WC9, C5, CF3, CF8, CF3M, CF8M, etc.. Applicable medium: water, steam, oil, nitric acid, strong oxidizing medium and urea, etc. the valves are widely used in power plants, petroleum, chemical, pharmaceutical, food and other industries, can be directly matched with the imported equipments.

Dimensions & constructral diagram

ANSI swing check valve constructral diagram
ANSI swing check valve constructral diagram

Standard

type design and manufacture face to face dimension flange dimension pressure-temperature test-inspection
swing check valve ANSI B16.34 ANSI B16.10 ANSI B16.5 ANSI B16.34 API
lift check valve BS 1968

Test pressure

nominal pressure PN (Lb) intensity test gas sealing test gas sealing test
Mpa Lbf/i n 2 Mpa Lbf/i n 2 Mpa Lbf/i n 2
150 3.1 450 2.2 315 0.5-0.7 60-100
300 7.8 1125 5.6 815
600 15.3 2225 11.2 1630
900 23.1 3350 16.8 2440

The materials of main parts and performance

body,bonnet,disc stem gasket sealing face working temperature ℃ applicable medium
WCB 2Cr13 enhanced flexible graphite 13Cr/ flexible graphite stainless steel/ acid-resistant asbestos serrated gasket 13Cr STL body material nylon PTFE ≤425 water,steam,oil,nitric acid, acetic acid strong oxidation media urea
WC1 ≤450
WC6 ≤540
WC9 ≤570
C5 C12 ≤540
CF8 304 ≤200
CF8M 316
CF3 304L
CF3M 316L

Main technical dimensions

nominal diameter DN 150Lb、10K 300Lb、20K 600Lb 900Lb
in mm L(RF) H weight (kg) L(RF) H weight (kg) L(RJ) H weight (kg) L(RJ) H weight (kg)
2 50 203 165 17 267 190 28 292 210 32 372 335 120
2 1/2 65 216 175 25 292 205 33 330 230 42 422 370 165
3 80 241 190 29 318 220 45 356 255 60 384 300 115
4 100 292 215 50 356 245 70 432 295 110 460 340 180
6 150 356 265 85 444 295 150 559 365 220 613 425 400
8 200 495 320 150 533 330 230 660 420 390 740 490 690
10 250 622 356 240 622 420 390 787 505 630 841 585 1020
12 300 698 415 350 711 480 520 838 545 870 968 655 1550
14 350 787 460 460 838 535 710 889 600 940 1038 710 2000
16 400 864 495 580 864 585 890 991 650 1100 1140 765 2500
18 450 978 590 690 978 615 1000 1092 735 1300 1232 810 3000
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