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Swashplate 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

Swashplate check valves
Swashplate check valves

Product introductions

Swashplate no impact swing check valve is a new valve that designed and developed by the combination of many years of our company's valves production technology and aboard advanced product. Its main advantage is to overcome the impact and water hammer phenomenon caused by the swing check valve, lift the back valve in the operating conditions, to achieve no impact operation.

Design specifications

• product design according to:ASME B16.34
• face to face according to:ASME B16.10
• flange dimension according to:ASME B16.5 GB HG SH
• inspection and test according to:API 598
• pressure class:Class 150、300、600 PN 2.0 、5.0、10.0 MPa

Structural features

• Double eccentric disc, the seat will gradually contact with the sealing surface when closed, to achieve no impact, no noise working.
• Micro-flexible metal seat, with good sealing performance.
• Butterfly disc design, with open and close quickly and sensitively, long service life
• Swashplate structure allows the streamlined type of fluid pipes, with small flow resistanc, energy-saving effect

Dimensions & constructral diagram

Swashplate check valve constructral diagram
Swashplate check valve constructral diagram

The materials of main parts

code body disc sealing seat
P CF8 CF8+STL 0Cr19Ni9 PTFE
R CF8M CF8M+STL 0Cr17Ni12Mo2
K CF3 CF3+STL 00Cr19Ni11
J CF3M CF3M+STL 00Cr17Ni14Mo2
E CN7M CN7M+STL No.20 alloy
C WCB WCB+13Cr 0Cr19Ni9
D LCB CF8+STL 0Cr19Ni9

Comparsion of main performance and features

performance swing check valve swashplate no impact swing check valve
closing force large small(almost 1/5~1/8 of the former)
impact force large none
sealing performance Allowance leakage according to API 598 can achieve zero leakage
flow resistance large(flow resistance coefficient ξ=1.3~2.5) small(flow resistance coefficient ξ=0.18~0.6)
flow capacity small(flow resistance coefficient Cv=76) Large (flow resistance coefficient Cv=154~333)
weight larger smaller(approximately 80%of the former)

Main dimensions of Class 150

nominal diameter NPS 2 2 3 4 6 8 10 12 14 16 18 20 24 26 28 30 32
DN 50 65 80 100 150 200 250 300 350 400 450 500 600 650 700 750 800
L 203 216 241 292 356 495 622 698 787 864 978 978 1295 1295 1143 1143 1194
D 160 182 196 230 300 390 432 510 540 635 700 770 900 930 991 1020 1150
W 178 198 224 252 326 426 456 530 576 670 740 818 948 988 1050 1090 1240
weight (kg) 11 16 22 34 62 112 169 238 337 420 550 685 910 1055 1260 1540 1860

Main dimensions of Class 300

nominal diameter NPS 2 2 3 4 6 8 10 12 14 16 18 20 24 26 28 30 32
DN 50 65 80 100 150 200 250 300 350 400 450 500 600 650 700 750 800
L 267 292 318 356 444 533 622 711 838 864 978 1016 1346 1346 1295 1372 1448
D 170 196 214 245 320 400 460 540 580 660 725 800 940 970 1040 1080 1210
W 198 220 232 268 360 426 457 572 620 690 760 848 988 1018 1250 1280 1350
weight (kg) 17 22 32 97 110 162 228 380 443 530 780 980 1320 1364 1762 2050 2870

Main dimensions of Class 600

nominal diameter NPS 2 2 3 4 6 8 10 12 14 16 18 20 24
DN 50 65 80 100 150 200 250 300 350 400 450 500 600
L 292 330 356 432 559 660 787 838 889 991 1092 1194 1397
D 185 196 210 270 340 440 520 570 610 690 755 850 990
W 212 225 240 298 405 460 492 602 650 710 780 902 1040
weight (kg) 27 44 47 115 190 320 430 586 750 1015 1480 2050 2550
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