Due to advanced experience and technique adopted in design and manufacture, our slab gate valve has been widely used in numerous fields, as a switching facility installed on transportation pipelines of natural gas, petroleum and petrolic products, or pipelines for chemical-industry, environmental protection, and on equipments for storing oil and gas.
1. Embed the seat with PTFE ring, blow-weld the gate with hard alloy so as to reinforce the sealing surface. Double-sealing that can be protected by injecting grease.
2. Flexible to open and shut with small torque that is only 1/3~1/2 times as much as that of general valves.
3. The unique three-layer adjustable packing structure insures seal and reliability of bonnet and stem.
4. Easy to operate and maintain.
5. Slab gate valve with a guiding hole is used on pipeline needs cleaning with the tube cleaner, while slab gate valve without a guiding hole is used on pipeline needs not cleaning.
6. Adjustable slab gate valve can be installed on exit of pump, station, and pipeline of which the medium needs to be adjusted and stop.
7. Slab gate valve of WB type can be installed on any angle (horizontal, vertical, acclivitous), and is more convenient to drain.
8. Speediness-interrupted slab gate valve with buffer can be open and shut rapidly, without striking when closing, and the novel pneumatic, manual switching structure, makes it flexible to operate, and more convenient and reliable.
9. AT type with low pollution to medium can be widely installed on transportation pipelines in airport and storage equipment of oil and gas, or pipelines with natural gas, petroleum and petrolic products, or for chemical industry, entironment protection.
10. VT type with non-rising stem and accurate intuitionistic indicator, of which the height has been shortened effectively, is more convenient to operate and maintain. The gate with a guiding hole can protect the sealing face effectively, and can be cleaned with tube cleaner.
11. Slab gate valve of VS type can be buried underground with pipelines for a long time, is the best choice for pipelines of city gas, natural gas and petroleum. Besides the advantages of the VT type, the inside surface of the VS type is treated with epoxy coating while the outside surface is painted with corrosion-protection layer.
12. Slab gate valve of WP type lightens the burden of pipelines effectively. Its special structure and light body makes it especially appropriate for storage equipment of oil and gas.
13. Electric slab gate valve involves integral explosion-proof type, explosion-proof type and general type. Limitorque, the USA Rotork, England Auma, Germany will be chosen according to user's requirement, or chosen internally.
Main Feature:
1) The seat ring uses the floating seat ring structure with O-seal ring sealed and pre-tightening force applied to have inlet and outlet dual-way sealed, and the open-close moment with this structure is 1/2 that of the common valves only, able to lightly open and close valve.
2) When fully opened, the valve's channel is smooth and linear,with an extremely small flow resisting coefficient and no pressure loss ,and the pipeline can be cleaned with hair-ball through it .
3) Automatic removal of the high pressure in the internal cavity when the valve is about to close so as to ensure safety.
4) Fully sealed structure leaves a good protective property, suitable for the requirement of 24-hour duty.
Standard for gate valves:
Design manufacture standard: API 6D
Length of structure: API 6D
Flange connecting end: ASME B16.5/ASME B16.47
Butt welding connecting end: ASME B16.25
Wall thickness: ASME B16.34
Inspection and test: API 6D
Pressure and temperature rating: ASME B16.34
| Main material | WCB, WCC, LCB, CF8, CF8M, CF3, CF3M, CN7M, CF8C, 4A, A105, LF2, F304, F316, F304L, F316L, F321, F51, ect. |
| Pressure rating | Class 150 to Class 2500 (PN2.5 to PN 420) |
| Standards applied | API. ASME, ANSI, NACE, CE/ EN, DIN, JIS, BS, ISO, TS, GB, etc. |
| Operative temperature | -196 °C to 980 °C ( -320.8 °F to 1796 °F) |
| Optional operation | Manual, Gear, Electric, Pneumatic, Hydraulic. |
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.
