Metal Seated Ball Valve
Metal-seated ball valves are introduced when the temperature and pressure rating of fluids override the limit of traditional PTFE-seated ball valves. Metal-seated ball valves combine the advantage of both gate valves and PTFE-seated ball valves, and are recommanded in some extreme conditions.
The Manufacturing and maintenance of metal-seated ball valves are challenging, because of the difficulty of matching arc sealing faces of seats and balls. Both seats and balls are normally hardened to avoiding the scratches in use.
Features of Metal Seated Ball Valves:
Floating Ball or Trunnion Mounted Ball
Metal-to-metal Seated
Split Body, End Entry
2-Piece or 3-piece Body
Full Port for Pigging Operation
Fire Safe to API 607
Antistatic Design
Anti-blowout Stem
Gear Operation or Actuator Available
Applicable Standards of Metal Seated Ball Valves:
A) Design & Manufacture: API 6D, BS 5351, API 607
B) Face to Face: API B16.10, API 6D, EN 558, DIN 3202
C) End Connection: ASME B16.5, ASME B16.25, EN 1092, JIS B2220
D) Test and Inspection: API 6D, EN 12266, API 598
Sizes: 2" - 24", DN 50 - DN 600
Pressure Rating: Class150 - Class 2500 or PN 16 - PN 420
Material of valve body: WCB, LCB, CF3, CF8M, CF3M, A105, LF2, F304, F304L, F316, F316L etc.
Operated by: Gear, Pneumatic, hydraulic and Electric actuator
PN (Mpa) | Test pressure (Mpa) |
| Shell | High-pressure liquid sealing | Low-pressure hermetic sealing |
| 16.0 | 24 | 17.6 | 0.6 |
| 32.0 | 48 | 35.2 |
| Applicable temperature | -40~80ºC |
| Applicable medium | Water, oil products, nitrogen, ammonia, hydrogen, and liquefied gas, etc. |
Fangyuan Valve Group Co. Ltd, seated at Wuxing Industrial Zone, Oubei, Yongjia County, so called as "Pump & Valve Village of China", close to the national scenic spot Nanxijiang River to the east and facing the downtown of Wenzhou City to the south, and established in 1998 with the former as Zhejiang Fangyuan Valve Manufacturing Co. Ltd, has got a great achievement via hard work and continual going forth ahead and become a magnate of plate gate valve from an unknown small enterprise and leads the future of this industry. Fangyuan Valve Group Co. Ltd was derived from Zhejiang Fangyuan Valve Manufacturing Co. Ltd in 2005 and holds 5 stock subsidiaries, three production bases in Wenzhou, Shanghai and Lishui and a cast base in Lishui, a total registered capital up to 4, 000, 000 USD, a total land area 110000m2, over 600 staff members, 60 of which are technicians, a digital process center and more than 350 sets of various middle and large equipments and an annual output up to 12000 tons.
This Group comes as a key enterprise among the said"Pump & Valve Village of China"and a well known enterprise in the national valve industry and specializes in the production of plate gate valve, gas valve, electric station valve etc., with the development, design and invention patent know-how up to the advanced technical level of the world and the leading level of the nation and some of the products used to replace the imported ones. This Group has been accredited to ISO9001, API6A/6D, CE, AZ etc., won the first prize of scientific advance of Zhejiang Province and elected as a member of the first-grade supply network of China Petroleum, a member of China Petrochemical Resource Market, a member of No. 1 Energy Network, a member for supply of the national electric power system, an appointed production enterprise by Chemical Equipment General Corp., a Wenzhou high-tech enterprise, a start enterprise of Yongjia County, one of the 30 powerful enterprises among the said village and a banking credit AAA grade enterprise in the successive recent years. It holds a powerful strength in the technical, management and market etc. Respects and a notable superiority in the severe market competition.
The products, approved by the nation and province early or late, have been elected as quality products of Zhejiang Province and well-known ones of Wenzhou. This Group follows the guide policy of"takeing people as the base, managing the company with laws, prospecting the enterprise with quality, continuing innovations"and makes the products well sold to all over the country and USA, Canada, the Middle East, Europe etc. World markets, greatly favored by the users therein. Therefore a solid basis has been made for the further open-up of the world market, for the making of Fangyuan brand, for the national industrial progression and for the great target to create a valve magnate of China and step forward to the 50 powerful valve companies of the world.
Slab gate valve: Slab gate and expanding gate, double sealed upstream and downstream design, double block and bleed open and closed design. Size: DN50~DN1400, pressure: PN16~PN420, handwheel, gear, electric, pneumatic.
Fully welded ball valve.
Forged steel valve. Material: A105, LF2, F11, F22, F5, F304, F316, F321 etc.
