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ZHMIS-D1 DIN 3202 Swing Type Check Valves Flanged End

The function of the German standard swing check valve is to prevent the medium back in the pipeline, the pressure applied to the nominal is PN1.6-4.0MPa, the working temperature is of -20 ℃ -350 ℃ petroleum, chemicals, pharmaceuticals, fertilizers, power, various operating conditions of the pipeline industry and the like, or turn off the pipeline medium. The face-to-face length standard is DIN3202.

ZHMIS-D1 DIN 3202 Swing Type Check Valves Flanged End Dimensions


Swing Type Check Valves Flanged End VS Ball Typ

1. Material:

Both swing type check valves flanged end and ball type's material can be CI/DI/WCB/SS


Both swing type check valves flanged end and ball type's pressure can be Class150/300/600/900, PN10/16/25/40/63,5K/10K/16K

3. Range of Applications (Difference):

Stardard: DIN 3202 PN10/16, ANSI CLASS 125/150

Face to face: DIN 3202 F1, MSS-SP-85

Connection flange type: Flange end

4. Installation (Difference):

Swing Type check valve overall no external leakage point, eliminate the possibility of valve leakage, suitable for cleaning medium, not for medium containing solid particles or with higher viscosity.

ZHMIS-D1 DIN 3202 Swing Type Check Valves Flanged End FAQs

Q 1. Can Swing Check Valves Be Mounted Vertically or Horizontally?

Yes, the swing check valves can be mounted both horizontally or vertically.

Q 2. What Are the Common Troubleshooting Methods for Check Valves?

The faults of the check valve include: the valve cannot change direction or the change direction is slow and the gas leaks.

(1) Check valve cannot change direction or change direction slowly, which is generally caused by poor lubrication, spring stuck or damage, oil stains or impurities stuck in sliding parts, etc. In this regard, firstly check whether the lubricator is working properly; whether the viscosity of the lubricating oil is appropriate. If necessary, replace the lubricating oil, clean the sliding part of the reversing valve, or replace the spring.

(2) After long-term use, the check valve is prone to wear of the valve core sealing ring, 

damage to the valve stem and valve seat, resulting in gas leakage in the valve. At this time, the sealing ring, valve stem, and valve seat should be replaced, or the reversing valve should be replaced with a

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