Installation of pneumatic valve and types

in order to daily care and maintenance on a regular basis. When device using a wrench or pliers fixed pneumatic valve, electromagnetic pneumatic valve device should have a certain room. Turn over again, never will force in the electromagnetic coil components caused by the deformation, which solenoid pneumatic valve was difficult to work properly. Pipeline lack of rigidity, or under the condition of water hammer, the pneumatic valve before and after taking over with bracket, please. Frozen place when using, must use heat-insulating material for pipe maintenance or set the heater on the pipeline. To confirm, solenoid pneumatic valve itself and it if there is a leak and take over the joint. To coil lead wire connection to check, especially the three lead. Electromagnetic pneumatic valve connection to electrical components, such as relay, switch, contactor, etc. Open the pneumatic valve contact should not be vibration, otherwise the work will be unreliable, and affect the electromagnetic pneumatic valve life. The electric circuits to access the corresponding line safe and as the maintenance of the electric circuits.
so far, trace the development of pneumatic valve. At home and abroad of electromagnetic pneumatic valve in principle can be divided into three categories: ( I. e. , straight acting, step by step child guiding type and from the pneumatic valve structure and material of different with the difference on the principle is divided into six branches small class ( Diaphragm structure, step by step of moving heavy piece of membrane structure, the structure, the forerunner in straight moving piston structure, step by step piston structure, the forerunner of moving piston structure

direct acting solenoid pneumatic valve

electromagnetic coil electromagnetic force to shut off pneumatic seat, principle: when the electricity. Pneumatic valve open; Power, the electromagnetic force disappears, press on the pneumatic valve seat, spring to close the pneumatic valve is closed.
but the size is generally not exceed mm characteristics: vacuum, negative pressure and zero pressure can normal work.

distribution of direct acting solenoid pneumatic valve

when entrance and differential pressure of the entrance without principle: the combination of a direct acting and pilot operated principle. After electrify, electromagnetic force the lead directly to the small pneumatic valve and main valve closure, in turn, lift, pneumatic valve to open. When the inlet and outlet at startup pressure difference, after electrify, forerunner of the electromagnetic force small pneumatic valve, the main pneumatic valve inferior vena pressure rising, the cavity pressure drop, which using the differential the main pneumatic valve opened up; Power outages, the forerunner of pneumatic valve using the spring force or medium pressure push off, move down, to close the pneumatic valve.
but power is larger, features: zero differential pressure or vacuum and high pressure also can * action. Required level of device.

the guide type solenoid pneumatic valve

electromagnetic force open the pilot hole, principle: when the electricity. On chamber pressure drops rapidly, closed form around the high low differential pressure, fluid pressure push close up, pneumatic valve open; Power off, the spring force to close the guide hole, inlet pressure chamber through the bypass hole quickly shut in pneumatic valve using a form around on high pressure difference, fluid pressure push close move down, close the pneumatic valve.
can be arbitrary installation ( Need to customize but must meet the fluid pressure difference condition characteristic: high fluid pressure range limit.

solenoid pneumatic valve installation and maintenance of the

check whether products conform to the requirements of the use, read product manual carefully before installation. Remember device points, ready for work. Proofreading nameplate by standard parameters and the parameters of the selected products are consistent, power supply voltage should be meet the rated voltage range of voltage shake: ac + % ~ - Dc + % % ~ - % coil components should not be open at ordinary times. Over before use. MPa pressure pipe flushing and the metal powder in the pipeline and the sealing material residues, remove rust scale, etc. Pay attention to the cleanliness of medium, if within the medium mixed with dirt and impurities, such as not impair the normal work of the solenoid pneumatic valve, pipe should be installed in the pneumatic valve mesh filter or greater.

in a container discharge pipe, solenoid pneumatic valve should not be installed in the pipeline dips. Pay attention to not from the bottom of the container to elicit, and should be installed at the bottom of the container on a position. If water hammer will be the media, should choose the solenoid pneumatic valve with the function of water hammer or take appropriate preventive measures.

the department to take over should tilt, steam with solenoid pneumatic valve inlet side should be equipped with hydrophobic pneumatic valve. Solenoid pneumatic valve is generally directed not against, usually on the pneumatic valve body with 'points out that the flow direction of medium, device should be in accordance with the' indicates the direction of the device but the company may sometimes in the vacuum tube road or special circumstances have proposed an exception.

vertical installed in a horizontal pipe at the ground, device position: general electromagnetic coil electromagnetic pneumatic valve components should be vertical. If the space restrictions or conditions required by the side, like the building sewer pipe or inverted installation in the selection of the order, please put forward. Some products have special rules, please follow the instructions to install. Took over attention, sealing materials do not use too much. Such as threaded connection, to take over the thread should be kept within the effective length, and in the end half pitch with file chamfering, since end tooth starting winding sealing strip, or excessive seal belt or binder will be into the lumen of pneumatic valve, and interfere with the normal movement of accident