Enterprise Information
What are the anti-freezing protection measures of the trap
Release time:
2018/05/03 14:34
Selection, installation of the appropriate trap as long as there is steam through, there will be no freezing problems. However, if the steam is cut off, the steam condensate will form a vacuum in the heat exchanger or the accompanying pipe. This prevents condensation from freely draining out of the system before freezing occurs. Therefore, a vacuum breaker should be installed between the discharge equipment and the trap. If gravity discharge is not used from the trap to the return pipe, the trap and discharge pipeline should be discharged manually or automatically using a discharge pipe with antifreeze measures. Also, when multiple traps are installed together in the trap station, the trap insulation can prevent freezing. Anti-
How to select the actuator and valve drive device
Release time:
2018/04/25 14:34
The actuator and the valve body shall be assembled and debugged to form the control valve assembly. It is used to drive the valve to act, and at the same time, the mechanical position of the valve and the opening information are fed back to the automation system. form an automated control unit. Actuators in accordance with the access to energy to distinguish, there are three main categories: 1. electric actuator 2. pneumatic actuator 3. electro-hydraulic actuator (access to the hydraulic device to drive a larger torque valve, usually used for large valves) according to different valve structure and process conditions, need to choose a different actuator to meet the control needs. usually in
Transformation of electric actuators
Release time:
2018/04/23 14:34
Electric actuator is a very important executive unit in the combination surface of electric unit in industrial control system. Electric actuators can supply linear or rotary motion of the drive device, it uses some kind of driving power and under the action of some kind of control signal. Electric actuators use liquid, gas, electricity or other power and convert it into driving action through motors, cylinders or other devices. The electric actuator is generally composed of two completely independent parts on the circuit, the control circuit and the executive organization. It can receive the electronic control signal from the scheduler and convert it linearly into a mechanical angle or linear displacement to operate the damper and baffle., Valve and other adjustments
Forged steel globe valve three kinds of body cover connection design form
Release time:
2018/04/09 14:34
Forged steel cut-off valve has three kinds of body cover connection design: the first is the body cover bolt connection forged steel cut-off valve, according to this connection form of the design of the valve, the valve body and the valve cover with bolts, winding gasket seal, the advantage is easy to repair. The second kind of body cover welding connection forged steel globe valve, according to this connection form design of the valve, the valve body and the valve cover full welding seal, the advantage is no external leakage. The third is the pressure self-tightening valve cover forged steel globe valve, according to this connection form design of the valve, the valve body and the valve cover with screw mosquito connection, internal pressure from the sealing ring seal, the advantage is that the greater the internal pressure, the better the sealing performance. You can according to the actual
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