Pneumatic control valve installation instructions < / div >

installation delta note control pneumatic valve must be in strict accordance with the engineering and control system requirements for installation, once a pneumatic valve failure, will lead to serious accidents such as fire, explosion, poisoning, and personal injury. If pneumatic valve components installed in the conditions of use beyond its specifications or limit the scope of the given corresponding nameplate, may be due to the sudden release of pressure and product injury or equipment damage. In order to avoid such incidents, need according to the government or the current industrial rules and regulations and good engineering practice, the installation of a safety pneumatic valve for over-voltage protection. Delta carefully when you place an order of pneumatic valve configuration of the structure material is according to the specific pressure, temperature, pressure drop and the control of the traffic condition and to choose, because some pneumatic valve and pneumatic trims composite material in terms of its pressure drop and temperature range has certain limits, thus, not consulted in advance ( Shanghai) Co. , LTD. Suggestions about sales offices or technical department before, do not apply these pneumatic valves to other conditions. Before installing the pneumatic valves, pneumatic valves and check related equipment, look to whether have damage, and any foreign bodies to ensure that the pneumatic valve internal clean, no foreign body in pipeline. Pneumatic control valve components can be installed in any position, unless restricted by vibration control standards. But the general way is to install the actuator vertically over the door of the pneumatic valve, pneumatic valve core and other locations may be inverted pneumatic valve cage uneven wear and improper operation. For some pneumatic valve, when the actuator is not vertical, it might also need the support of support. （ As shown in figure 3 - 1) For more detailed information, please refer to the Shanghai consulting co. , LTD. , sales offices or technical department. Graph: 3 - 1
control pneumatic valve installation position comparison chart as shown in figure 3 - 2, 1 is the best installation position, the vertical installation. 5 is the worst place, try to avoid. When installing pneumatic valve in the pipeline, recognized the piping and welding method. In the process of welding, internal elastic parts can stay in situ ( Neither to remove them or action they) 。 For the need for continuous operation in the process of inspection and maintenance, the surrounding control pneumatic valve components to install a bypass tee pneumatic valve. 4. For leak outside type pneumatic valve cover structure, remove the tube plug, even on the discharge pipe. If, in the inspection and maintenance needs continuous operation, the surrounding control pneumatic valve components to install a bypass tee pneumatic valve. 5. Packing leakage may cause injuries. Pneumatic valve packing has tightened before leaving the factory, then, may need to packing to readjust, to meet the specific application conditions. Control pneumatic valve installation must consider the control of the pneumatic valve at the scene of the possibility of repair or remove the day-to-day maintenance, install a good, easy to close to, want to consider to maintain the space required for the control of pneumatic valve, clearance and convenience. Typically, H1 = Ho + 300 mm, H2 = 2 (h0 + 200 mm As shown in figure 3 - 3) 。 If actuators and pneumatic valve shipment separately, then see the corresponding actuator passages in the instruction manual. Delta note pneumatic valve actuator to avoid disclosure of the environment of high temperature, when the temperature higher than 62 ℃, diaphragm, seal, the locator electronic parts will be significantly affected by high temperature. In the case of vibration, due to the pipeline vibration, displacement of the possible causes of the pipe, so request to connect to the trachea of the actuator, hydraulic pipe and electric connection should be flexible enough. The relaxation of plastic pipe requires only a small part, metal tube subjected to vibration, requires a larger deflection. Electric connection in addition to flexible requirement, can choose according to actual situation. Depending on the pneumatic valve body material and decide, may need to heat treatment after welding. If so, it might damage the internal elastic and plastic parts and metal parts. Hot with the threaded connections may also be loose. Generally speaking, if you want to heat treatment after welding, you should remove all pneumatic trims. To realize more details, please refer to the Shanghai consulting co. , LTD. , sales offices or technical department.