Stainless steel Lift check valve

lift check valve

check valve is applicable for petroleum, chemical, pharmaceutical, fertilizer, power industry and other conditions pipeline with nominal pressure PN1,6-4.0MPa, working temperature -20 DC -350 °C, to stop or allow the medium in the pipeline.

Structure features of DIN 3356 6 inch lift check valve
1, Reasonable structure, reliable sealing, excellent performance, attractive appearance;
2, Sealing surface surfacing Co hard alloy, with features of wear resistance, corrosion resistance, good abrasion resistance, service life is long;
3, Stem is treated with quenching and surface nitriding, with good anti-corrosion and anti-friction properties;
4, Double seal, performance is more reliable ;
5, Parts materials, flanges and butt welding size can be made according to the actual working conditions or user requirements, to meet the needs of various projects.

Parameters

Valve Name	DIN 3356 6 inch lift check valve
Design and manufacture	DIN3356
Flange end	DIN2543-2546
Face to face	DIN3202
Test & inspection	DIN3230-75

Nominal pressure MPa	Shell test pressure MPa	Sealing test pressure MPa	Applicable temperature	Applicable medium
1.6	2.4	1.76	-20C°-350C°	water, steam, oil, etc.
2.5	3.75	2.75
4	6	4.4

Main material

 lift check valve

S.N.	Part name	Material
1	Body	GS-C25, CF8, CF3
2	Disc	2CR13, F304, F316
3	Metal spiral wound gasket	stainless steel, PTFE
4	Bonnet	GS-C25, CF8, CF3
5	Hexagon nut	ASTM A193-2H, A193-8, A193-8M
6	Stud	ASTM A193-B7, A193-B8, A193-B8M