Features of flat gate valve products
1. The valve seat adopts an O-ring seal and a floating valve seat structure with pre tightening force applied, which makes the inlet and outlet of the flat gate valve sealed in both directions; And the opening and closing torque of this structure is only half of that of a regular valve, which can easily open and close the valve
2. When fully open, the channel is smooth and straight, with minimal flow resistance coefficient and no pressure loss. It can clean the pipeline with a capillary ball
3. Adopting a packing structure with self sealing ability, without the need for frequent adjustment, the opening and closing are extremely lightweight, and the sealing performance is reliable. There is an auxiliary sealing grease injection structure at the packing box, which is absolutely reliable in sealing performance and truly achieves zero leakage; Solved the problem of leakage at the packing of general valves
4. When the flat gate valve is closed, it can automatically remove the high pressure inside the chamber, ensuring safe use
5. Fully enclosed structure, good protective performance, and can adapt to all-weather requirements
PFFW rising stem flat gate valve is a high-performance, bi-directional sealed concealed stem gate valve. Integral forging forming, with excellent performance in high-pressure environments, can be applied to oilfield wellheads, Christmas trees, gas trees, and manifold systems ranging from 2000psi to 20000psi.
Executive standard for flat gate valves
Nominal caliber: 1-13/16 "~9"
Working pressure: 2000psi~20000psi
Temperature Class: LU
Material grade: AA~FF
Specification level: PSL1~PSL4
Performance level: PR1~PR2
Design Execution Standard: API 6A
