Gas open type: is when the membrane on the surface of the head the sky atmospheric pressure force increases, the valve moves to increase the opening direction. 3. Be sure to petition tighten 3 explosion-proof flexible pipe. 3, installation, 3. 1 air valve on the direction of the orders shall be the medium flow direction are exactly the same; 3. 2 add GangDian, completes the fastening and tightly closed. Its atmospheric pressure force increases, the valve moves in the direction of closing, in the absence of air pressure of the atmosphere or empty atmospheric pressure forces reduced hours, valve to open the whole piece of paper or direction of movement. Choose pneumatic valve opening form is based on the safety of the process to produce Angle to think about the problem of. 2, remove the 2. 1 air valve disassembly process must be served in production work area people booing, end line remit pressure jump, no pressure to remove; 2. 2 if the office between the oil and gas, open HuYou, open fan, maintain indoor ventilation; 2. 3 be sure to first power, while disassembling inspection take out stitches after electricity, completes the signal lines are cathode tags, wrapped with insulating tape terminal; 2. 4 use tools carefully remove the air valve, equipped with blind plate, and hang them. Q: pneumatic - valve protection procedures a: pneumatic Industrial Valves is fuel, chemical industry, electric power, smelting, metal and other industries widely used industrial process stem one meter. Pneumatic - valve categories: open type and close type gas ( Gas closed type) 。 So it is also called open type as fault closed type gas. 。 5. 2 protection operation, after the end of remove the warning signs and records should be protected. Work principle of the pneumatic control valve simply saying is compressed air to achieve success, in practice, understand the principle of pneumatic control valve office has great significance. Pneumatic control valve of gas or gas close, generally is through positive and negative effect of the actuator and the valve structure is not the same as assembly forms a successful implementation. When to enter the atmosphere pressure maximum, the valve is in the whole paper. So it is also called fault open type. Type gas clearance ( Gas closed type) Just the opposite: instead of gas movement type direction. 1. After 3 protection to work closely guard against short circuit, tighten the end cover and explosion-proof flexible pipe joints. 4, operation of 4. 1 don't upstream or downstream quickly open the valve, carefully to see if pneumatic control valve and accessory devices have leaked things; 4. 2 pressure tightly closed in good condition after wiring, after seizing discrepancies on electricity; 4. Three linear signal, is used to adjust gas valve, and control the alignment, normal after notice from work area in a normal process. 5, protection at the end of 5. 1 protection by the end of the operation, be sure to clean up with tools, parts, and sweep away all office space debris. Office principle of pneumatic control valve, pneumatic control valve is with compressed air as power source, the cylinder as actuator, and by means of electric valve positioner, switch, solenoid valve, such as attachments to drive the valve, the position control valve is successfully implemented the switch quantity or proportion adjustment, after finish work industry semi-automatic stem stem signal system to complete the regulating the flow of pipeline medium, pressure, temperature, etc. All kinds of craft parameter. 1 protection at ordinary times. 1 dressed labor insurance against protection articles before the operation, careful investigation tools, instruments, spectrograph is in line with the standard. 1. 2 before the pneumatic valve protection, be sure to fill in the paper industry, signature clearly acknowledged, and the rear can be implemented by the relevant units. Unique place: pneumatic control valve is stem simple, reaction is rapid, and the essence of safety, no extra to adopt explosion proof treatment method. In contrast, Marine valve was reduced hours, atmospheric pressure force direction of the valve to close action, when there is no input air, the valve closed absolutely. Notes to the order: The national standard) A, A: B: product name, model, nominal size medium and temperature, pressure range C: whether there is attachment, delivery time, and special requirements so that we can correct selection for you. Second, if the valve has been selected by design unit of our company model, please order according to the valves parameters directly with our sales center. Three, it is very important when you use the occasion or the environment is more complex, would you please provide design drawings and detailed parameters, our engineers experts will concentrate on review and analysis for you. We can provide you with professional solutions, including design, customization, complete, operation and service. We've been working on the valve leader in the field of industry, to provide you with the latest knowledge of the valve, the best service, best technical adviser. Thank you for visiting our website, if you have any questions, you can call us, we will be dedicated to provide you with quality services. The factory provides professional ball valve, butterfly valve, gate valve, globe valve, check valve, relief valve, safety valve, Marine valve, oil valve, hydraulic control valve and other kinds of valves.
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