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Stainless Steel Dual Plate Wafer Spring Check Valve
Wafer Type

Stainless Steel Dual Plate Wafer Spring Check Valve

Type: Wafer type

Series: H71W-10/16

Size: DN40-DN700/2”-28”

Pressure rating: PN6/PN10/PN16/PN25

Design standard: AWWA C594

Service: OEM&ODM

The stainless steel wafer check valve is an automatic anti-backflow device featuring a stainless steel body and wafer-type mounting design. It achieves automatic opening and closing via the inherent pressure differential of the medium, requires no external actuation, and is widely used in piping systems handling corrosive or hygienic fluids.

    Valve Type:

    Wafer check valve

    Structure:

    Double disc

    Standard:

    AWWA C594

    Workmanship:

    Investment casting

    Sealing direction:

    Single-directional

    Sealing grade:

    Zero leakage

    Temperature:

    -40°C<T<800°C

    Operation:

    Self-starting

    Characteristics

    The clamp check valve is made of stainless steel material, with core advantages concentrated in three dimensions: corrosion resistance, adaptability, and durability, which can significantly improve the reliability of the valve under complex working conditions.

    Characteristics

    Advantages

    1. Wide temperature adaptability, capable of handling both high and low temperature conditions

    Stainless steel material has stable mechanical properties in the temperature range of * * -40 ℃~450 ℃ * *. With different sealing seats (such as fluororubber and metal hard seals), it can adapt to the transportation of low-temperature freezing media and meet the needs of high-temperature steam, hot oil and other working conditions. Compared with cast iron valves, it is less prone to brittle cracking due to sudden temperature changes.

    2. Lightweight design, compatible with the advantages of clip on installation

    Stainless steel has a lower density than cast steel, and the valve body is lighter in weight. Combined with a clamp type compact structure, it further reduces the load-bearing capacity of pipeline flanges. No additional reinforcement brackets are required during installation, making it particularly suitable for pipeline systems with limited space and strict load-bearing requirements.

    3. Convenient maintenance and reduced long-term usage costs

    Stainless steel valve body is not prone to scaling and coking, and the inner wall of the flow channel is smooth. Daily cleaning only requires simple flushing; And the anti-corrosion characteristics reduce the rusting and jamming of internal components of the valve, lower the probability of valve disc opening and closing failure, and significantly reduce the frequency and cost of shutdown maintenance.

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    Packing

    Standard export wooden case packaging

    Standard export wooden case packaging

    Application Scenarios

    This valve finds extensive application in pipeline networks spanning multiple industries, including chemical processing, petroleum refining, pharmaceutical manufacturing, food and beverage production, seawater desalination, water treatment engineering and HVAC systems. It demonstrates exceptional suitability for operating conditions where rigorous standards for medium purity and corrosion resistance are mandated, alongside constraints on installation space.

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    Material

    Body Disc Stem Rubber gasket Spring
    Name Code Name Code Name Name Code Working temp ℃ Name
    Cast Iron
    Ductile lron
    Carbon steel
    Stainless stee
    Z
    Q
    C
    P
    Plated ductile Iron
    Aluminum bronze
    ZG1Cr13Ni9Ti Stainless steel
    CF8M Stanless steel
    CF8M Stainless steel
    1
    2
    5
    7

    Stainless

    steel

    EPDM
    Neoprene
    NBR
    Neoprene
    X3
    X4
    X5
    X7
    -46~+121 Short time
    -50~+150
    -29~+99 Short time
    -35~+113
    -23~+82 Short time
    -23~+93
    -23~+150

    Stainless

    steel

    Dimension

    Dimension

    DN

    D

    D1

    D2

    L

    R

    t

    mm

    inch

    50 2" 107 65 43.3 43 28.2 19
    65 2.5" 127 80 60.2 46 36.1 20
    80 3" 142 94 66.4 64 43.4 28
    100 4" 162 117 90.8 64 52.8 27
    125 5" 192 145 116.9 70 65.7 30
    150 6" 218 170 144.6 76 78.6 31
    200 8" 273 224 198.2 89 104.4 33
    250 10" 328 265 233.7 114 127 50
    300 12" 378 310 283.9 114 148.3 43
    350 14" 438 360 332.9 127 172.4 45
    400 16" 489 410 381.0 140 197.4 52
    450 18" 539/555 450 419.9 152 217.8 58
    500 20" 594 505 467.8 152 241 58
    600 24" 690 624 572.6 178 295.4 73
    700 28" 800 720 680 229 354 98

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