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    5" Flanged Diaphragm Valve, UPVC/ CPVC

    $766.89
    Low price 2 way PVC diaphragm valve comes with PTFE diaphragm and 5 inch (DN125) flanged port for liquid and flow control in water treatment, chemical processing, pharmaceuticals and other industries, available in UPVC and CPVC body material for your applications.
    *
    SKU: ATO-FDV-DN125
    30-day Returns
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    Delivery date: 6-12 days

    PVC diaphragm valve consists of a UPVC or CPVC body with an inlet and outlet and a diaphragm that separates these two ports. When the valve is in the closed position, the diaphragm seals against the body, preventing the flow of fluid.

    Specification

    Model ATO-FDV-DN125
    Size 5 inch (DN125)
    Structure Type Flanged Type
    Diaphragm Valve Assembly Parts Material
    Diaphragm PTFE
    Film EPDM
    Valve Body UPVC, CPVC
    Valve Plate UPVC, CPVC, Steel, Stainless Steel
    Cover Limit AS
    Stud Steel, Stainless Steel
    Retaining Nut FRPP
    Washer FRPP
    Wheel Alloy Material
    Platen Steel, Stainless Steel
    Double-Headed Stud and Nut Steel, Stainless Steel
    Bonnet UPVC, CPVC
    Yoke Nut Ht300 Steel
    Stem Steel, Stainless Steel


    Dimension (Unit: mm)

    Flanged PVC diaphragm valve dimension DN15 ~ DN100

    Size Valve Body Material d D L h n-φ
    5 inch (DN125) UPVC 248 213 400 30 8-φ18
    CPVC 248 213 400 28 8-φ18


    Detail

    Flanged diaphragm valve detail

    Working Pressure

    Size Working Pressure (MPa)
    UPVC CPVC
    20~40℃ 41~60℃ 61~80℃ 0~40℃ 41~60℃ 61~90℃
    1/2" (DN15) 0.8 0.8 0.7 0.7 0.7 0.6
    3/4" (DN20) 0.8 0.8 0.7 0.7 0.7 0.6
    1" (DN25) 0.8 0.8 0.7 0.7 0.7 0.6
    1-1/4" (DN32) 0.7 0.7 0.6 0.7 0.7 0.6
    1-1/2" (DN40) 0.7 0.7 0.6 0.7 0.7 0.5
    2" (DN50) 0.7 0.7 0.6 0.7 0.7 0.5
    2-1/2" (DN65) 0.7 0.7 0.6 0.7 0.7 0.5
    3" (DN80) 0.7 0.7 0.6 0.7 0.7 0.5
    4" (DN100) 0.7 0.7 0.6 0.7 0.6 0.5
    5" (DN125) 0.5 0.5 0.4 0.5 0.5 0.4
    6" (DN150) 0.5 0.5 0.4 0.5 0.4 0.3
    8" (DN200) 0.3 0.3 0.2 0.5 0.3 0.25
    10" (DN250) 0.3 0.3 0.2 0.3 0.3 0.2

    Tips: Difference between a butterfly valve and a diaphragm valve

    Butterfly valves and diaphragm valves are both types of flow control valves used in various industries. The primary difference lies in their design and operation:

    Butterfly Valve:

    • A butterfly valve has a disc-shaped closure element that pivots around a central axis to control flow.
    • It operates by turning the disc 90 degrees to either fully open or close the flow passage.
    • Offers quick and efficient flow control with a low pressure drop.
    • Suitable for applications requiring on/off or throttling control, such as in HVAC systems and large water pipelines.
    • Relatively lower maintenance requirements and cost-effective.

    Diaphragm Valve:

    • A diaphragm valve uses a flexible diaphragm or membrane to isolate the flow stream from the valve body.
    • It controls flow by compressing or retracting the diaphragm to allow or block fluid passage.
    • Ideal for applications requiring a high level of containment or purity, such as in the pharmaceutical and chemical industries.
    • Provides excellent sealing, preventing cross-contamination and leakage.
    • Generally more complex and expensive than butterfly valves, with higher maintenance requirements.
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