The throttle valve used in the cutting machine controls the flow of the fluid by changing the throttle section or the throttle length. The parallel connection of the throttle valve and the check valve can be combined into a one-way throttle valve. The throttle and one-way throttle are simple flow control valves. In the hydraulic system of the cutting machine quantitative pump, the throttle valve and the safety valve cooperate with each other to form three throttle speed regulation systems of the intake throttle speed regulation system, the return throttle speed regulation system and the bypass throttle speed regulation system. The throttle valve has no flow negative feedback function and cannot compensate for the instability of the speed caused by the load change. They are usually only used when the load changes little or the speed stability requirements are not high.
What is the function of the safety valve used in the cutting machine manufacturer? The pressure relief valve is a hydraulic control valve that functions to set pressure relief, stability, system unloading and safety protection in the hydraulic equipment of the cutting machine. Poor leakage may occur when assembling or using a safety valve due to damage to the O-ring and combination seal, or loose mounting screws and fittings. If the cone valve or the main spool is worn too much, or the sealing surface is not well contacted, it will cause excessive internal leakage and even affect normal operation. What is the function of the check valve check valve? Check valves, also known as check valves, are used to prevent reverse flow of oil in the hydraulic system of the cutting machine. There are two types of check valves: straight-through valves and right-angle valves. The through-way check valve is mounted on the pipe by a threaded connection. Right angle check valves are available with threaded, plated and flanged connections.
The hydraulic control check valve, also known as the lock valve and the pressure maintaining valve, is the same as the check valve to prevent reverse flow of oil. However, when the oil flow needs to flow in the opposite direction in the hydraulic circuit, the oil pressure can be controlled, and the check valve is opened to make the oil flow flow in both directions. The hydraulic control check valve adopts a conical valve core and has good sealing performance. When the oil pipeline needs to be closed, the valve can be used as a one-way locking device to maintain pressure. There are two ways to control oil leakage through a hydraulic check valve: internal and external. The internal leakage type can be adopted in the oil pipeline with no back pressure at the reverse flow of the oil flow, otherwise the external leakage type must be used to reduce the control oil pressure.