Recently, WuYou Valve groups subsidiary YanCheng DingSheng Valve Manufactory has just completed a set of low temperature steel series material parallel slide valves, this project is natural gas pipeline project with Sinopec in the Middle East.
Parallel slide valve is the slip valve with closure member for the parallel sliding wedge The closing member is a single plate or double plate with a supporting device.
Flat gate valve with diversion hole for the need to pipe Cleaning pipelines, flat gate valve without diversion hole do not need to pipe Cleaning pipelines
Body in two forms, the general nominal pressure ≤ 2.5MPa, or ≤ 300Lb for casting flat structure,> 2.5MPa or> 300Lb, they could cast a round structure.
Seat for the embedded PTFE or filled PTFE seal ring rigid floating seat ring, with a double seal, valve seat ring by the O ring of end to rotation added to the tightening force by the piston effect of the floating valve seat up to seal for the import and export at the same time, this kind of a double seal structure make body cavities and channels in complete isolation state, can repair the valve in the working state, emission is excluded in body cavity.
wedge for a rectangular parallel plate, with the same diameter channels as through-hole onto the wedge (with diversion hole), or not through-hole (without diversion hole), when full open, the channel smoothing, low flow resistance coefficient ,small pressure loss, open and closed wedge and the seat is always inter-contacted, capable of wipe out particles filth attached to between Sealing, but also the sealing surface can not be washed directly by media and be protected
Flat gate valve with self sealing ability by filling the structure, without frequent adjustment, opening and closing very light and convenient , and reliable sealing, stuffing box with auxiliary seal lubrication injected structure, absolutely reliable sealing performance, really carry out zero leakage; resolved the shortcomings of General valve’s packing easily leakage
The valves are widely used in natural gas, petroleum, chemical, environmental protection, urban pipelines, gas pipelines and other pipes and transmitting system .
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