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Russian GOST Standard Check Valve

Product Range

​Size: DN50~DN800
Pressure Rating: PN6~PN420
Body Materials: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel
20Л, 20ГЛ, 12Х18Н9TЛ , 12Х18Н12M3TЛ, 30с41нж, 30с941нж, 19нж53нж, 15нж22нж, 15тн8п, 25с90нж, 30с99нж, 15с65нж, 25с628нж
End Connection: RF, RTJ, Butt-Welded

Technical Standard

• Design & Manufacturing Standard: GOST 5762, BS 1868, ASME B16.34, DIN 3356
• Structure Length Size: GOST 3706, ASME B16.10, EN 558
• Flange Connection Size: GOST 33259, ASME B16.5, EN 1092
• Butt Welded Ends: GOST 33259, ASME B16.25, EN 12627
• Check & Experiment: GOST 33257-15, API 598, BS 6755, EN 12266
• Pressure and Temperature Rating: GOST 356

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Product Features

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☆ Body Structure: bolted bonnet (BB), pressure seal bonnet (PSB)
☆ Swing type, anti-rotation disc
☆ Full port design
☆ Horizontal or vertical service

Part Materials List

NO.	Part name	WCB	LCB	WC6	WC9
7	Bolt stud&nut	A193 Gr B7/A194 Gr 2H	A320 Gr L7/A194 Gr 4	A193 Gr B16/A194 Gr 4/7	A193 Gr B16/A194 Gr 4/7
6	Cover bolt&nut	A193 Gr B7/A194 Gr 2H	A320 Gr L7/A194 Gr 4	A193 Gr B16/A194 Gr 4/7	A193 Gr B16/A194 Gr 4/7
5	Gasket	Spiral wound/soft iron	Spiral wound/soft iron	spiral wound/SS304	spiral wound/SS304
4	Hinge yoke	A216 Gr WCB	A352 Gr LCB	A217 Gr WC6	A217 Gr WC9
3	Hinge	A216 Gr WCB	A352 Gr LCB	A217 Gr WC6	A217 Gr WC9
2	Cover	A216 Gr WCB	A352 Gr LCB	A217 Gr WC6	A217 Gr WC9
1	Body	A216 Gr WCB	A352 Gr LCB	A217 Gr WC6	A217 Gr WC9
NO.	Part name	C5	C12	CF8	CF8M
7	Bracket stud&nut	A193 Gr B16/A194 Gr 4	A193 Gr B16/A194 Gr 4/7	A193 Gr B8/A194 Gr 8	A193 Gr B8M/A194 Gr 8M
6	Cover bolt&nut	A193 Gr B16/A194 Gr 4	A193 Gr B17/A194 Gr 4/7	A193 Gr B8/A194 Gr 8	A193 Gr B8M/A194 Gr 8M
5	Gasket	Spiral wound/soft iron	Spiral wound/SS304	spiral wound/SS304	spiral wound/SS316
4	Hinge yoke	A217 Gr C5	A217 Gr C12	A351 Gr CF8	A351 Gr CF8M
3	Hinge	A217 Gr C5	A217 Gr C12	A351 Gr CF8	A351 Gr CF8M
2	Cover	A217 Gr C5	A217 Gr C12	A351 Gr CF8	A351 Gr CF8M
1	Body	A217 Gr C5	A217 Gr C12	A351 Gr CF8	A351 Gr CF8M

Inquiry

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