Stainless Steel Cryogenic Gate Valve
Applications such as liquefied natural gas and other low temperature fluids, present special extreme temperature valve functionality challenges. Valves designed for cryogenic services, are specially prepared and designed to overcome these challenges. Appropriate component materials such as 304SS (CF8) and 316SS (CF8M) are normally used for body and trim, offering superior impact strength, and excellent corrosion resistance and heat loss properties. An extended bonnet and gas column design is also normally adopted to provide thermal insulation at the stem seal and stem packing area. At sufficient length, this design feature places the functionality of the stem seal in the vapor zone of the liquid media providing safe and continuous valve operation. A variety of body, trim, seat, and seal materials are available for use in cryogenic service. Customer specified options, such as body cavity vent hole, special extension lengths, and materials are also available upon request.
Features of Stainless Steel Cryogenic Gate Valves:
Applicable for Low Temperatures down to -320° F(-196° C)
Extended Bonnet
Pressure release holes
Materials subzero treatment and test
Designs according to ASME B16.34
Applicable standards of Stainless Steel Cryogenic Gate Valves:
A) Design & Manufacture: API 602, BS 5352, ASME B16.34
B) Face to Face: ASME B16.10, EN 558, MSS SP-84
C) Connection End: ASME B1.20.1, ASME B16.11, ASME B16.25, EN 1092
D) Test and Inspection: API598, EN 12266, ISO 5208
Sizes: 1/2" - 2" or DN15 - DN50
Pressure Rating: Class150 - Class1500 or PN16 - PN250
Material of valve body: LF1, LF2, LF3, LF9, F304, F304L, F316, F316L, etc.
Operated by: Handwheel
Material specification NO. | Part | A352 LCB | A352 LC1 | A352 LC2 | A352 LC3 | A352 LC4 | A352 CF8 | 01 | Body | A352 LCB | A352 LC1 | A352 LC2 | A352 LC3 | A352 LC4 | A352 CF8 | 02 | Seat ring | A182 F304+STL | A182 F304+STL | A182 F304+STL | A182 F304+STL | A182 F304+STL | A182 F304+STL | 03 | Wedge | A352 LCB+STL | A352 LC1+STL | A352 LC2+STL | A352 LC3+STL | A352 LC4+STL | A352 CF8+STL | 04 | Stem | A182 F6a | A182 F304 | 05 | Gasket | Spiral wound/Soft Iron/PTFE | 06 | Bolt | A320 L7 | A193 B8 | 07 | Nut | A193 2H | A194 8 | 08 | Back seat | A182 F6a | A182 F304+STL | 09 | Yoke | A352 LCB | A352 LC1 | A352 LC2 | A352 LC3 | A352 LC4 | A352 CF8 | 10 | Gland Bocking | Graphite | 11 | Gland | A182 F6a | A182 F6a | A182 F6a | A182 F6a | A182 F6a | A182 F6a | 12 | Gland Flange | A352 LCB | A352 LC1 | A352 LC2 | A352 LC3 | A352 LC4 | A352 CF8 | 13 | Stem nut | Cu-Aolly,A439 D-2 | 14 | Yoke nut | A194 2H | 15 | Handwheel | Malleable Iron/cast steel/Ducile/Fabricated | 16 | Handwheel nut | A194 2H | 17 | Nameplate | Stainless steel | 18 | Pin | A182 F6a | Working temperature | -46 font | -60 font | -73 font | -101 font | -115 font | -196 font |
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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.