1. Emergency shut-off valve for pressure regulator The emergency shut-off valve for pressure regulators is an important safety protection device in gas transmission and distribution systems. The emergency shut-off valve is equipped with an emergency tripping mechanism on the upper or side position of the shut-off valve. Be not only integrated with the body of the regulator, but also integrated with the filter. Its function is to shut off the air source urgently and ensure the safety after the pressure...
Introduction of several special purpose gas valves Read
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First: Uses and features of sanitary pneumatic butterfly valves Sanitary pneumatic butterfly valves adopt standard electronic polishing, smooth surface to ensure clean, no media storage area, no potential pollution. The valves can be quickly disassemblied and assemblied, making it easy to open and maintain the valves, thereby the downtime reduced during the process. Sanitary pneumatic butterfly valves are widely used in industrial process control, such as food, pharmaceutical, cosmetics, clean...
Latest uses and features of sanitary pneumatic butterfly valves Read
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Basic composition and working principle of pipeline ball valve Basic structure composition Generally, the ball valve for natural gas pipeline is mainly composed of a valve body, a valve seat, a ball body, a valve stem and a actuator device. The main function of the ball valve is to open and close the passage of the fluid in the pipe. The ball valve realizes the opening and closing function by rotating the ball by 90° through the actuator. Commonly used natural gas pipeline ball valves mainly...
Common valves for natural gas pipelines: pipeline ball valves Read
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Extraction check valve Check valves are valves used to prevent backflow of media in pipes and equipment. The steam exhaust check valve is arranged on each of the exhaust pipes of the external heater of the steam extraction and regenerative system in the steam turbine unit. The function of the valve is that the valve plate is automatically closed when the unit is under load, preventing the steam in the steam side of the heater and the steam in the steam inlet pipe from flowing back into the steam...
Overhaul of main check valves in power plants Read
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Ball Valves Ball valves offer very good shut-off capability. A ball valve is a form of quarter-turn (90°) valve to control the fluid flow. This characteristic minimizes valve operation time and decreases the likelihood of leakage due to wear from the gland seal. Ball valves can be divided into two categories: reduced bore type and full bore type. In reduced bore valves, the valve opening is smaller than the diameter of the piping. In full bore valves, the diameter of the valve...
Manual Valves Types Read
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A gate valve can be defined as a type of valve that used a gate or a wedge type disk, and the disk moves perpendicular to the fluid in the pipeline to shut off the fluid. The valve is either in fully open or fully closed position. When a gate valve is fully open, the disk of the gate valve is completely removed from the flow. Due to very little pressure drops, when the fluid passes through a gate valve, there is no resistance to flow virtually. To achieve...
Types of Gate Valves Read
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Definition of gate valve A gate valve is a valve utilizing a gate, usually wedge-shaped, that allows fluid flow when the gate is lifted from the seat. Gate valves have less resistance to flow than globe valves, and always be used fully open or fully closed. Working of gate valve When the handle wheel is rotated in an anticlockwise direction, the steam and gate is moving in a downward direction. The fluid flow line and gate will be tightly located between the...
The Basics of Gate Valves Read
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With the increasing value of energy and serious environmental pollution, energy conservation has received more and more attention from people, ranging from energy saving for large equipment to energy saving and environmental protection of the insulation of the valve. How to do a good job of heat insulation of valves has become an important issue facing people nowadays. According to the calculation, a high-temperature valve that is generally exposed to the air loses the heat equivalent to burning...
Why should pipes and valves be insulated? Read
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Plug Valve Basics The plug of plug valve is similar to a cylinder or cone and can be rotated in the valve body to control the flow of fluid. Plug valves have one or more hollow passageways, usually placed horizontally so that they can easily pass through the valve when opened. The most common type of plug valve is the 2 port model with an open and closed position. The two ports are usually located on opposite sides of the valve with one passageway leading from inbound to outbound and the...
Plug Valve Types and Uses Read
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1. The Classifications of Globe Valve Direct Globe Valve: The direct globe valve has small friction between the sealing surfaces during the opening and closing process, with wear resistance, small opening height and good manufacturing performance, which is one of the most widely used valves in industry, but it has the greatest resistance compared with other globe valves. Oblique Globe Valve: In an oblique and Y-type globe valve, the flow passage of the valve body...
A Brief Introduction of Globe Valve Read
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