Swash plate check valve

Swash plate check valve

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    Product Details

    Technical Parameters

    Nominal diameter: NPS2~NPS24
    Pressure rating: CL150~CL2500
    Connection: RF, RTJ, BW
    Main material: carbon steel, alloy steel, stainless steel, duplex steel, nickel-based alloy, etc
    Applicable medium: water, steam, oil, corrosive medium, etc
    Design standards: ASME B16.34, BS1868, API6D
    Length of structure: ASME B16.10
    Flange size: ASME B16.5 GB HG SH
    Inspection and testing: API 598


    Product description

    The swash plate check valve adopts double eccentric valve discs, and the valve pin and the sealing surface gradually contact when it is closed, so as to achieve no impact and no noise. The swash plate structure makes the fluid channel streamlined, with small flow resistance and energy saving effect. Butterfly disc design, fast and sensitive switch, long service life.


    Structural features

    1. With double eccentric discs, when the valve is closed, the valve is in contact with the sealing surface gradually, so as to achieve no impact and no noise.
    2. Slightly elastic metal valve seat with good sealing performance.
    3. Butterfly disc design, fast and sensitive switching, long service life.
    4. The swash plate structure makes the fluid channel streamlined, with small flow resistance and energy saving effect.


    Material of main parts

    Code Body Disc Seal 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 Alloy 20
    C WCB WCB+13Cr 0Cr19Ni9
    D LCB CF8+STL 0Cr19Ni9


    Comparison of main performance characteristics

    Performance Swing Check Valve Swash plate non-impact check valve
    Closing force big Small (about 1/5 to 1/8 of the former)
    impact force big none
    tightness Leakage allowed per API 598 Zero leakage possible
    flow resistance Large (flow resistance coefficient ξ=1.3～2.5) Small (flow resistance coefficient ξ=0.18～0.6)
    Circulation capacity Small (flow coefficient Cv=76) Large (flow coefficient Cv=154～333)
    weight bigger Smaller (about 80% of the former)






    Class 150 Main dimensions

    DN 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

     

    Class 300 Main dimensions

    DN
    		 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

     

    Class 600 Main dimensions

    DN 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