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DIN check valve are used in various industries such as petroleum,water,steam industry etc under norminal pressure of PN 1.6-4.0Mpa and working temperature of -20°C-350°C.Product Feature
1.This product has logical structure,reliable seal,excellent performance and nice design.
2.The seal surface is build-up welding with Co hard alloy,which is attrition-resistant,corrosion-resistant and good friction-resistant.
3.The stem quenched and tempered,and its surface is treated by nitriding treatment, thus it has good corrosion-resistant and friction-resistant.
3.The part material,flange and butt weld and dimension may be selected according to current operating conditions and users'requirement,so that meeting the requirement of various engineering.
4.Suitable temp:-20°C-350°C.
5.Suitable medium:water,steam,oilProduct Specification/Models
Design standard:DIN3356.
Face to face:DIN3202.
Flange ends:DIN2546-2546.
Test&inspection:DIN3230-75.Application
petroleum industry,water industry,steam industry.
