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Hangzhou Qiyou Trading Co., Ltd
NORGREN throttle valve from the UK*
NegotiableUpdate on 05/15
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Overview
NORGREN throttle valve from the UK is a water solenoid valve suitable for use with water or liquid as the working medium. It can automatically or remotely control the on/off of pipelines for working media such as water, oil, and liquid.
Product Details
NORGREN throttle valve from the UK*
Plays a security protection role in the system. When the system pressure exceeds the specified value, the safety valve opens to release some of the gas in the system into the atmosphere, ensuring that the system pressure does not exceed the allowable value and preventing accidents due to excessive pressure. Safety valve, also known as overflow valve. The diagram shows several typical structural forms of safety valves. Figure A shows a piston type safety valve with a flat valve core. The air source pressure acts on piston A. When the pressure exceeds the safe value determined by the spring force, piston A is pushed open, and some compressed air is discharged into the atmosphere from the valve port; When the pressure of the gas source reaches the safe value, the spring drives the piston to move downwards and close the valve port.
NORGREN throttle valve from the UK*
The performance requirements for the Norgren throttle valve are: a wide range of flow regulation and smooth changes in flow pressure difference; The internal leakage is small, and if there is an external leakage port, the external leakage should also be small; The adjustment torque is small and the action is sensitive. The external structure of a throttle valve is no different from that of a globe valve, only the shape of their opening and closing components is different.
The opening and closing components of the NORGREN throttle valve are mostly conical streamlined, which adjusts the flow rate and pressure by changing the channel cross-sectional area.
The NORGREN throttle valve is used to reduce medium pressure in situations where the pressure drop is extremely large. The medium has a high flow velocity between the throttle valve disc and the valve seat, causing rapid damage to the surfaces of these parts - known as cavitation phenomenon. In order to minimize the impact of cavitation, the valve disc is made of corrosion-resistant material (alloy steel) and made into a streamlined cone with an angle of 140-180. This also allows the valve disc to have a larger opening height and generally does not throttle under small gaps.
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