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Factory Promotional Oxygen Ball Valve - Bolt Bonnet Gate Valve – Convista

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We've one of the most advanced generation tools, experienced and qualified engineers and workers, recognized good quality manage systems and a friendly skilled product sales workforce pre/after-sales support for Cast Steel Globe Valve, Ss Double Orifice Air Relief Valve, Welded Ball Valve, We give priority to quality and customer pleasure and for this we follow stringent excellent control measures. We've got in-house testing facilities where our items are tested on every single aspect at different processing stages. Owning to latest technologies, we facilitate our clients with custom made creation facility.
Factory Promotional Oxygen Ball 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

Product detail pictures:

Factory Promotional Oxygen Ball Valve - Bolt Bonnet Gate Valve – Convista detail pictures


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"Sincerity, Innovation, Rigorousness, and Efficiency" is the persistent conception of our company for the long-term to develop together with customers for mutual reciprocity and mutual benefit for Factory Promotional Oxygen Ball Valve - Bolt Bonnet Gate Valve – Convista, The product will supply to all over the world, such as: Gambia, Philadelphia, Manchester, Based on our guiding principle of quality is the key to development, we continually strive to exceed our customers' expectations. As such, we sincerely invite all interested companies to contact us for future cooperation, We welcome old and new customers to hold hands together for exploring and developing; For more information, be sure to feel free to contact us. Thanks. Advanced equipment, strict quality control, customer-orientation service, initiative summary and improvement of defects and extensive industry experience enable us to guarantee more customer satisfaction and reputation which, in return, brings us more orders and benefits. If you are interested in any of our merchandise, make sure you feel free to contact us. Inquiry or visit to our company are warmly welcome. We sincerely hope to start a win-win and friendly partnership with you. You can see more details in our website.
  • Wide range, good quality, reasonable prices and good service, advanced equipment, excellent talents and continuously strengthened technology forces,a nice business partner.
    5 Stars By Murray from Guatemala - 2017.11.01 17:04
    Cooperate with you every time is very successful, very happy. Hope that we can have more cooperation!
    5 Stars By Antonio from Venezuela - 2017.03.07 13:42

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