Oil Service Wafer Double Plate Check Valve

Structural Feature Short structural length,only 1/4~1/8 of that of traditional flanged check valve; Low volume,light weight,only 1/4~1/20 of those of traditional flanged check valve; Quick valve disc closedown,low water hammer pressure; Applicable for and easily installed for vertical or...

Product Details


Check Valve is applicable for various pipelines with nominal pressure of PN1.0MPa-42.0 MPa,Class150-2500 and nominal diameter of DN15-1200mm,NPS1/2-48 and working temperature of -196-540 to be used for protecting from medium back flowing. The different materials selection can apply to the medium involving water, steam, oils, nitric acid, strong oxidizing medium and urea etc.


1. Nominal  diameter:

    2" -  48"  (DN50 - DN1200)

2. Pressure  range:

   Class 150 - Class 2500    (PN16 - PN150)

3. Working  temperature: 
 -196 - +560

4. Body   material:
    Carbon steel, Stainless steel, Alloy steel, Bronze

5. End  connection:

Product Features

1. Resilient Buna-N or EPDM Seat

2. Upper and lower PTFE thrust washers

3. Wafer body style fit between FF or RF flanges

4. Torsion springs assist valve closure, preventing flow reversal

5. Thrust washer reduce friction and wear of valve plate hinges

6. Dual plate valves give maximum strength with minimum opening time

Equipped with a professional factory, Naibang Valve is a professional manufacturer and supplier of oil service wafer double plate check valve in China. If you want to buy quality product of various beautiful bags, you can get it at a cheap price from us.