Criteria of our valves.
1 NO Breakage
Our malleable iron has superior machanical properties compared with those of bronze and cast iron calves and is as stronog as cast or forged steel valves.
2 NO deformation and leakage
As malleable iron to the valve body is treated with heat for tens of hours to effect graphitization there is no tendency of straing due to heating or casting stress.
3 Wide application.
The valve is used widely on ordinary pipelines for steam,oil and water.
4 Strict quality control
Strict quality control is exercised and throughout every stage from the production if the malleable iron and stailess steel,to processing and assembling Hitachi Valve is the only integrated valve marker in Japan,and therefore can assure you full satisfaction with it.
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