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Checking valve

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Unidirection checking valve is the necessary safety protection device for metal cutting, gas welding and other heat processing. It can efficiently avoid the pyrophoricity and explosion accident caused by oxygen and fuel gas tempering to ensure then human safety and equipments stable running. Unidirection checking valve is the consumption items for safety assurance.
Our factory produces three series of unidirection checking valve: ESZET, HF and DZH, all is dry checking valve. It has been widely used in steel, shipbuilding, mechanism, chemical, construction and other industries which needs metal cutting, gas welding. Certified by our government department, all the kinds of checking valve produced by our factory can meet the technical standard completely. It has advantages as compact size, light weight, good adaptability, convenient operating, safe, reliable and etc.