Pneumatic valve plate brake usage structure characteristics

flat brake pneumatic valve is a kind of closed for parallel slide gate of pneumatic valve. Close it a can be a single ram or a meantime double ram with open institution.
the damper to the pneumatic valve seat of the clamping force is the role of medium pressure with the floating gate or floating pneumatic valve seat to control. If it is double ram pneumatic valve, flat gate two gate see open institution can supplement the clamping force. A characteristics of pneumatic valve, flat gate

and pneumatic seat O ring seals and floating pneumatic valve seat structure of prestressing force, brake plate was made import and export bidirectional pneumatic valve seal; And the structure of the open-close torque is only ordinary/pneumatic valves, can achieve easily open and close the pneumatic valves;
, when fully open, smooth channel for the straight line, small flow resistance coefficient, no pressure loss, can connect the bulb pipe cleaning;
and USES the packing structure with the sealing ability, without constant adjustment, features very light open and close, and the sealing is reliable, an auxiliary sealing grease injection structure is set in the packing, the sealing performance absolutely reliable and truly achieve zero leakage; Solve the general packing place of pneumatic valves to be easiest leak the ills of;
pneumatic valve, flat gate close automatically removing the inner cavity and pressure, ensure the safety of using;
, fully closed structure, safety performance is good, can adapt to all requirements.
2,
flat brake pneumatic valve applicable occasions. （ 类~ / PN。 ~。 MPa, working temperature - ~ ℃) Oil and gas pipeline. Plate brake of the pneumatic valve with flow guide hole also facilitate cleaning the pipeline.
。 Product oil pipeline and storage equipment.
。 The extraction of oil, natural gas wellhead, also is the Christmas tree with pneumatic valve.
。 With suspended particles of medium pipeline.
。 City gas pipeline.
。 Tap water project. Three pneumatic valve, flat gate

the advantages of small flow resistance, not reducing the flow resistance of flow resistance and short just. Flat brake of the pneumatic valve with flow guide hole is installed in piping can be directly use pig for pigging. Since ram is sliding on the surface of the two pneumatic valve seat, so pneumatic valve plate brake fluid can apply to medium with suspended particles, plate brake pneumatic valve sealing surface is actually the automatic positioning. Pneumatic valve seat sealing surface are not subject to the pneumatic valve body thermal deformation damage. And even in cold state, pneumatic valve shut down, pneumatic thermal elongation also won't make the sealing surface of the stem under overload. At the same time when the pneumatic valve closing, without diversion hole plate brake pneumatic valve also does not require the closing of the gate location is of high accuracy, so the electric flat pneumatic valve can be used to control the opening and closing position.
4, the shortcomings of pneumatic valve plate gate
when medium pressure is low, the metal sealing surface sealing force is not enough to achieve satisfactory sealing. Instead when medium pressure is high, if the sealing surface without lubrication system of medium or foreign media, often can make the sealing surface wear is too large for opening and closing. Another shortage is that the lateral movement of the circular disc on the circular flow only when it is in % of pneumatic valve position, this kind of pneumatic valve to control the flow of more sensitive. Moreover, ram but in high speed and high density flow medium, can produce violent vibration. If the pneumatic made V his seat and disc close guidance, it also can be used for throttling. Five pneumatic valve, flat gate

selection principle. Oil, natural gas pipeline, with single or double ram disc plate brake pneumatic valve. For cleaning the pipelines, choose single or double ram disc stem flat brake pneumatic valve with flow guide hole.
。 Product oil pipeline and storage equipment, selects the diversion hole of the single or double ram disc plate brake pneumatic valve.
。 The extraction of oil, natural gas wellhead, choose non-rising stem floating pneumatic seat of single or double ram disc with flow guide hole pneumatic valve, flat gate mostly APIA standard, pressure rating for the API, API, API, API, API, API.
。 With suspended particles medium pipeline, selects the knife type pneumatic valve plate brake.
。 City gas pipeline, choose single or double ram disc sealing pneumatic valve stem flat gate.
。 Urban tap water project, choose single or double ram disc of diversion kongming pole plate brake pneumatic valve.

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