GOST Check Valves

Hanno Valve is specially in manufacture China GOST Check Valves more than 25 years. Hanno Valve’s GOST Check Valves mainly from PN16 to PN320, DN50 to DN1200, with 20L, 25L, 20GL, 20GML, 20Cr5Mo, 15CrMo, 20CrMo, 12Cr18Ni9Ti, 12Cr18Ni10Ti, 12Cr18Ni12Mo3Ti, 4A, 5A, 6A, 904L, etc.

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Product Description

GOST Check Valves of Hanno Valve is manufacture according to GOST 5762, face to face dimension is according to GOST 3326-86, end flange dimension is according to GOST 33259. GOST Check Valves can make for flange connection end or butt welded connection end.

Type: Swing Check Valve

Material: CT.20

Seat Sealing: Metal 13Cr

Pressure Rating: PN100

Size: DN400

Connection Type: BW (Butt Weld)Features:· Carbon Steel (for temperatures -40℃ to 450℃): Suitable materials include Сталь 20, 20Л, 25Л.

· Low Carbon Steel (for temperatures -60℃ to 450℃): Suitable materials include 09Г2С, 20ГЛ.

· Stainless Steel (for temperatures -60℃ to 565℃): Suitable materials include 12Х18Н9ТЛ, 12Х18Н12М3ТЛ, and 10Х17Н13М2Т.GOST Check Valve Models:·

Swing Check Valves:

◎ DN 50–400, PN1.6 MPa: Model 19(с, лс, нж)76нж

◎ DN 50–400, PN4.0 MPa: Model 19(с, лс, нж)53нж

Piston Check Valves:

◎ DN 50–400, PN1.6 MPa: Model 16(с, лс, нж)10нж(п)

◎ DN 50–400, PN2.5 MPa: Model 16(с, лс, нж)11нж(п)

◎ DN 50–400, PN4.0 MPa: Model 16(с, лс, нж)13нж(п)Applicable Standards:· Design Standards: GOST/DIN/GB

· Face-to-Face Dimensions: GOST/DIN/GB/EN 558-1

· Flanged Ends: DIN 2543, BS EN1092-1

· Inspection and Testing: GOST

Materials

GOST Check Valves

NO.	Part name	Materials
1	Body	20GL
2	Seat surface	13Cr
3	Disc	20GL+13Cr
4	Disc Nut	A194-8
5	Hinge	20GL
6	Arm Pin	F304
7	Nut	A194-7
8	Bolt	A320-L7
9	Bonnet	20GL
10	Gasket	304+Graphite
11	Support	20GL
12	Bolt	A194-B8