Troubleshooting and solutions pneumatic butterfly valve, pneumatic valve by pneumatic actuator and valve components. Pneumatic valve with the stem is rotatable circular disc do open and close, so as to enable the operation of pneumatic valves to achieve the main shut-off valve to make use of, or can be designed to have a section of the valve regulating and regulating the function of the low voltage and high current butterfly diameter pipe use on more and more. Pneumatic butterfly Category: Stainless steel pneumatic butterfly valve, pneumatic butterfly hard seal, soft seal pneumatic valve, pneumatic valve steel.
First, test and adjust the pneumatic valve
1, the valve either manual, pneumatic, hydraulic, electrical components in the factory are subject to stringent testing, retesting the user when the sealing performance, the import and export sides should be uniformly fixed, closed butterfly valve, the pressure on the import side, observe whether the leak at the outlet side of the phenomenon, before the pipeline strength test, you should open the disc plate to prevent damage to seal pair.
2, pneumatic butterfly valve factory despite strict inspection and test, but there are also individual products in transit automatic screw deflection, need to re-adjust, pneumatic, hydraulic, etc., please read the complete drive manual.
3, has started control mechanism when the electric drive butterfly valve factory, good close travel adjustment. To prevent the power-on direction is wrong, the user after the first powered on, the first being opened manually to a half-open position, press the power switch in the direction of the indicator disc check valve can be closed in the same direction.
Second, the pneumatic valve common faults and Elimination
1, pre-installation channel confirm our products capabilities and media flow arrow is consistent with the movement condition, and insert the valve cavity clean, not allowed in the ring and butterfly board with impurities foreign body, before unwashed never allow Close disc to avoid damaging the seals.
2, the disc plate supporting flange is recommended to install the valve disc special flange that HGJ54-91 type socket welding steel flanges.
3, the location of the installation in the pipeline, the best location for the legislature means, but not flip.
4, use need to adjust the flow, there is worm gear box control.
5, the opening and closing times more disc valve, about two months time, the worm opens the lid to check whether the normal butter should maintain the right amount of butter.
6, check the connection part of the pressing requirement, which is to ensure the packing seal, but also to ensure flexible stem rotation.
7, metal sealed butterfly valve products are not suitable for installation in the pipeline terminal, such as terminal must be installed in the pipeline, equipped with outlet flange to be taken to prevent the ring backlog, have gone too far.
8, stem installation response periodically check valve effect, find fault and remove. |
