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|Features:||With Bleed Hole||Bonnet Design:||Pressure Seal, BB|
|End Connection:||Flange, Butt Weld||Size Rating:||NPS 2"-48"|
|Applications:||WOG Etc.||Rating:||Class 150Lb - 1500Lb|
API 600 Parallel Slide Gate Valve,
48" Parallel Slide Gate Valve,
1500Lb High Pressure Gate Valve
API 600 Full Bore High Pressure High Temperature Parallel Slide Gate Valve With Bleed Hole
TEKO Parallel Slide (Spring Loaded) Gate Valves are designed to provide isolation of flow in a piping system or a component when closed. They are not suitable for modulation of flow, i.e. throtting. For throttling service, we provide the parallel slide control gate valves instead.
The parallel gate consists of the valve body, bonnet, disc assembly, stem and top works, each side of the valve can withstand full differential pressure. Replaceable double-disc seal with double bleeding and blocking (DBB) is created by a combination of internal pressure and spring force. The floating seat can automatically relieve pressure when the middle chamber is under pressure. When the pressure in the cavity is greater than that in the channel, the cavity pressure will be released to the channel. When the upstream pressure of the channel is greater than that of downstream (the valve is closed), the pressure in the middle chamber will be discharged to the upstream side channel. When the upstream pressure of the channel is equal to the downstream (the valve is fully open), the pressure in the middle chamber can realize the discharge of bilateral channels. The valve seat automatically resets after pressure relief.
When the pressure inside the valve (cavity, inlet and outlet) is equal or no pressure, the disc is closed and the PTFE sealing ring on the seat surface forms the initial seal. The seat ring can automatically clean the sealing surface on both sides of the disc every time the valve is opened or closed.
Contact Person: sales