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Cast steel swing check valves
In pipeline systems, globe valves and gate valves are two common types of valves. They have some differences in structure, flow direction, sealing surface, opening and closing components, and flow direction. This article will provide a detailed introduction to the differences and advantages and disadvantages of globe valves and gate valves, helping you better understand the differences and applica...
(1) The installation position of the regulating valve should meet the requirements of the process flow design, and should be close to the primary indicating instrument related to it, so that the primary instrument can be observed when manually operating the bypass valve; (2) The regulating valve should be arranged on the ground or platform and easy to operate and maintain; (3) The regulating valve...
Drain, block steam, and exhaust air, therefore, in steam systems, drain valves are very important as they can maximize the utilization of heat energy and are the most important link between steam and condensate systems. 1. The essence of steam is water, which is a gaseous water containing a lot of heat. In the production process of using steam, when steam passes through heat exchange equipment, th...
1、 What is a steam trap valve? A steam trap is a device designed on devices that require steam, which can automatically discharge condensate, air, and non condensable gases from the steam system and prevent steam from being discharged. 2、 The important functions of steam traps: (1) Able to quickly eliminate the generated condensate water; (2) Prevent steam leakage; (3) Remo...
1、 Working principle of check valve Check valve refers to a valve that automatically opens and closes the valve disc by relying on the flow of the medium itself to prevent medium backflow. It is also known as a check valve, one-way valve, backflow valve, and backpressure valve. Check valve is an automatic valve that mainly functions to prevent medium backflow, prevent pump and drive motor reversal...
This type of valve is used to prevent media backflow, utilizing the kinetic energy of the fluid itself to open and automatically close when flowing in the opposite direction. Permanent at the outlet of the water pump, the outlet of the drain, and other places where fluid reverse flow is not allowed. There are three types of check valves: swing, lift, and clamp. For swing check valves, when the flu...
The bellows globe valve, also known as the bellows sealed globe valve, is designed with automatic roll welding to form a metal barrier between the fluid medium and the atmosphere, ensuring zero leakage of the valve stem. The internal structure of the bellows globe valve adopts a bellows structure, and the lower end of the stainless steel bellows is welded to the valve stem to prevent process fluid...
The valve is used to open and close the pipeline, control the flow direction, adjust and control the parameters of the transmission medium (temperature, pressure and flow) of the pipeline accessories. According to its function, it can be divided into shut-off valve, check valve, regulating valve and so on. The valve is a control component in the fluid conveying system, which has the functions of s...
Valve/Actuator Characteristics Resolution is the smallest change in the position of a control valve stem. This limits the ability of the control system to position the valve precisely to the desired position. If the adjustment increments are so large that the flow alternates between too high and too low, a lower resolution valve/actuator may oscillate continuously around the desired setting. Altho...
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