Professional China Air Release Valve - Bolt Bonnet Gate Valve – Convista

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Professional China Air Release Valve - Bolt Bonnet Gate Valve – Convista Detail:

Products design features

1. Both design and manufacture are carried out strictly following GB/T 12234, API600 and API602. The products feature a reasonable structure, reliable seal, good performance and nice modeling.

2. Co hard alloy welded sealing surface, which is wearing resistant, erosion proof, abrasion proof and long-lived.

3. The surface and the adjusting media of the valve shaft are nitrogenized so that it is erosion and abrasion resistant.

4. PN≥15.0MPa (Class 900), the middle cavity usea a self-tightening sealing structure to have the sealing performance reiinforced along with the pressure risee so as to ensure the sealing performance.

5. There is no backward sealing structure in the valve, so the sealing id reliable.

6. The material of the filling and the flange size can be chosen and matched according to the applications and requirements of the use’s. That can satisfies all kinds of working requirements.

Technical specification

Structural formation	Bolt-jointed bonnet outside stem yoke structure
Driving manner	Hand-operated, Gear-operated and Electric-driving
Design standard	GB/T 12234
Face to face	GB/T 12221
Flanged ends	GB/T 9113, JB/T 79, HG20592
Test & inspection	GB/T 13927, JB/T 9092

Major parts material form

Gate valve

No.	Part name	Material
1	Body	WCB, WC1, WC6, WC9, C5, CF8, CF8M, CF8C, CF3, CF3M
2	Gate disc	WCB, WC1, WC6, WC9, C5, CF8, CF8M, CF8C, CF3, CF3M
3	Seat	A105, 304, 1Cr5Mo, 12Cr1MoV
4	Stem	1Cr13, 2Cr13, 12Cr18Ni9, 06Cr18Ni12Mo2Ti, 20Cr1Mo1V, 25Cr2MoV
5	Stud	35CrMoA, 06Cr19Ni10, 06Cr17Ni12Mo2, 25Cr2MoV
6	Six angle nuts	45, 35CrMoA, 25Cr2MoV, 06Cr19Ni10, 0Cr17Ni12Mo2
7	Gasket	Graphite & stainless steel
8	Back seat	2Cr13, 20Cr13, 12Cr18Ni9, 06Cr18Ni12Mo2Ti, 20Cr1Mo1V, 25Cr2MoV
9	Bonnet	WCB, WC1, WC6, WC9, C5, CF8, CF8M, CF8C, CF3, CF3M
10	Packing	Graphite
11	Packing press-sleeve	1Cr13, 2Cr13, 12Cr18Ni9, 06Cr18Ni12Mo2Ti
12	Packing gland	CF8, CF8M, CF8C, CF3, CF3M
13	Valve stem nut	Copper alloy
14	Handwheel	KTH350-10, QT400-15

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We normally think and practice corresponding on the change of circumstance, and grow up. We aim at the achievement of a richer mind and body and also the living for Professional China Air Release Valve - Bolt Bonnet Gate Valve – Convista, The product will supply to all over the world, such as: Holland, Provence, Georgia, On today, we've got customers from all over the world, including USA, Russia, Spain, Italy, Singapore, Malaysia, Thailand, Poland, Iran and Iraq. The mission of our company is to deliver the highest quality products with best price. We've been looking forward to doing business with you!

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The factory workers have rich industry knowledge and operational experience, we learned a lot in working with them,we are extremely grateful that we can encount a good company has excellent wokers.