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Installation and maintenance of diaphragm valve

2024-10-29

Installation and maintenance of diaphragm valve

Before installing the diaphragm valve, carefully check whether the operating conditions of the pipeline are consistent with the specified range of use of this valve, and clean the inner cavity to prevent dirt from blocking or damaging the sealing components.The main Diaphragm Valve product names of China Diaphragm Valves Network include:Flange Wedge Fluorine Lined Gate Valve,Fluorine Lined Discharge Stuff Diaphragm Valve,Fluorine Lined Swing Check Valve,Fluorine Lined Visual Handleless CupFluorine Pipe Fittings,GB Reciprocating-type Pneumatic Rubber Lined Diaphragm Valve

Do not apply grease on the rubber lining layer and rubber diaphragm surface to prevent rubber swelling and affect the service life of the diaphragm valve.

Handwheels or transmission mechanisms are not allowed for lifting purposes and collisions are strictly prohibited.

When manually operating the diaphragm valve, auxiliary levers should not be used to prevent excessive torque from damaging the driving components or sealing parts.

Diaphragm valves should be stored in a dry and ventilated room, and stacking is strictly prohibited. The channels at both ends of inventory diaphragm valves must be sealed, and the opening and closing components should be in a slightly open state.

Malfunction and eliminationPossible malfunctions

reason

Elimination methods

 

The handwheel operation is not flexible

 ① Valve stem bending

② Thread damage

Replace the valve stem

Trim the threads and add lubricant

Pneumatic diaphragm valve cannot automatically open and close

① Low gas source pressure

② Excessive spring tightening force

③ Rubber diaphragm damaged

① Increase the gas supply pressure

② Reduce the tightening force of the spring

③ Replace the diaphragm

Leakage at the connection between the valve body and the valve cover

② Loose connecting bolts

② The adhesive layer inside the valve body has ruptured

① Tighten the connecting bolts

② Replace the valve body

 Do you still need to know or purchase the following Diaphragm Valve products:

Shanghai MeiYan Yi Pump & Valve Co., Ltd.
MeiYan Yi diaphragm valve Contact MeiYan Yi
Shanghai Enine Pump & Valve Co., Ltd.
Enine diaphragm valve Contact Enine
Shanghai Saitai Pump & Valve CO., Lid.
Saitai diaphragm valve Contact Saitai
Shanghai Fengqi Industrial Development Co., Ltd.
FengQi diaphragm valve Contact FengQi