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Dual plate lug type check valve.

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Solid Lug

Dual plate Full lug type check valve.

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TVCCL, TAIWAN VALVE Q. How Do Install Double Disc Check Valve In Pipe? Introduction

Taiwan Valve Centre Co., Ltd. is Taiwan supplier and manufacturer in Industrial Hardware Industry. TVCCL, TAIWAN VALVE has been offering our customers high quality Dual Plate Wafer Check Valve, Dual Plate Check Valve, Wafer Check Valve, Duo Check Valve, Double Door Check Valve, Non Return Valves, Non Slam Non Return Valves since 1998. With both advanced technology and 40 years experience, TVCCL, TAIWAN VALVE always make sure to meet each customer's demand.

Q. How Do Install Double Disc Check Valve In Pipe?

Tightening sequence of flange bolts for double door check valve
Tightening sequence of flange bolts for double door check valve

Taiwan Valve Centre Co.,Ltd. is the professional dual check valve manufacturers in the Taiwan.
This information concerning the installation and operation of TVCCL Wafer Style, Dual Plate Check Valves. To ensure efficient and safe operation of TVCCL Dual Plate Check Valves.
This manual is general in nature and is not meant to take the place of an on-site, process engineer or pipe fitter.

Installation procedure
1. Check the dual plate check valve to make sure the pressure and duo chek valve materials are correct for the application.
2. Make sure the pipe line has enough support to prevent vibrations and load weight from damaging the check valve.
3. Make sure pipes are aligned.
4. Make sure pipe flanges and doule door check valve sealings are clean from any debris.Check all surfaces for cleanliness and other visible sign of foreign matter as the internal surfaces/parts must be clean and free of debris before installation
5. Before installing the valve, it is important to know the flow direction. The flow direction shall be the same direction as the arrow that can be found on the side of the valve. If the valve is installed in the wrong direction the flow will stop.
6. Fix the valve with the bolts without tightening them.
7. Use crosswise bolt tightening to ensure a fixed installation. Other bolt tightening sequences may affect the installation.

Dual plate check valves should be installed a minimum of 6 pipe diameters downstream of any piping component (elbow, Tee, Valve, etc.) to allow the flow to stabilize. There should also be a minimum of 2 diameters of straight pipe downstream of the valve before the next fitting to allow for pressure recovery.

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