Stainless steel valve repair maintenance method of how the introduction of stainless steel valves, stainless steel valves faults are:? Valve can not change direction or change to slow gas leak, solenoid pilot valve is faulty and so on.
Electric shut-off valve
How stainless steel valve repair? Stainless steel valve repair method introduced
First, what causes valve leakage:
May be padding defect, or the seal broken; endoleak more sealing surface is damaged, as well as wear, corrosion damage caused by other components, these problems may be due to a longer time, medium temperature caused.
Second, the emergence of the valve and how to deal with failure reasons:
(1) why the valve will leak.
Cause: The valve body has cracks or trachoma.
Treatment: If the valve is found to have obvious cracks, we immediately performed Patching cracks treatment.
(2) on the valve seat crack understanding.
Cause: The combination of surface welding quality is poor, the temperature difference between both sides of the valve.
Approach: to have a crack at the repair welding, heat treatment in accordance with regulations, the car light, and grinding.
(3) in conjunction reason bonnet surface leakage.
Reason: not enough force in the bolt when twisted, or deviation, the joint surface defects or cracks
Treatment: The above gasket bolt with bolts to comply promptly replace damaged see.
(4) production and processing of cast stainless steel valves are magnetic.
Currently out of the production and processing of many kinds of stainless steel valves;
Classification by structure organization at room temperature, there are martensitic, austenitic, ferritic and duplex stainless steel, and other series; Remarks :( austenitic and non-magnetic or weakly magnetic, the other type has a ferromagnetic). |
