The hottest Suzhou Dawson valve station launched t

2022-08-22
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Suzhou Dawson valve station launched the minimum flow valve

Suzhou Dawson Valve Co., Ltd. launched the minimum flow valve of the feed pump, also known as the recirculation valve of the feed pump. It is a regulating valve used under harsh working conditions and has special performance requirements. It is a key valve used for the matching of the boiler feed water system of the power station, and is used for the protection of the feed pump

Suzhou Dawson Valve Co., Ltd. introduced the minimum flow valve of feed pump, also known as the recirculation valve of feed pump. It is a regulating valve used under harsh working conditions and has special performance requirements. It is a key valve used in the matching of boiler feed water system of power station, and is used for the protection of feed pump

the minimum flow regulating valve is the valve with the highest differential pressure in the power plant, and it is also one of the valves with the worst operating conditions in the power plant. For the valve operating under the condition of high pressure difference, it is necessary to select and design an effective throttling structure to reduce the flow rate of the medium, so that the strong vibration and noise caused by high pressure difference and high flow rate and the scouring damage of high-speed fluid to parts can be restrained, and the regulating performance of the valve with radial extension and plastic deformation can be improved, which can be adjusted continuously and stably according to the flow requirements of the pump

the minimum flow valve developed by Suzhou Dawson Valve Co., Ltd. adopts labyrinth disc throttling structure, so that the valve can achieve the best effect of throttling, speed reduction, vibration and noise reduction, and reduce and eliminate the effects of flash and cavitation as much as possible; The labyrinth design enhances the speed reduction effect of the throttling structure, minimizes the vibration and noise during product operation, and extends the service life; In addition, the sealing pair adopts hard and soft double seals and dual spool linkage protection, which can seal tightly when the valve is closed to achieve zero leakage, and prevent flashing and cavitation at the downstream of the sealing surface and even near the sealing surface

■ its basic technology 6. Main configuration of product machinery: technical parameters are as follows:

● nominal diameter (DN): engineering stress - load applied in tension or compression test divided by the cross-sectional area of the sample 100mm

● pressure rating (PN): 320MPa

● valve body material: wc9

● working temperature: 175 ℃

● applicable medium: boiler feed water

● connection form: butt welding

● driving mode: Electric

● maximum flow: 173t/h

● maximum differential pressure: 22.9mpa

● flow characteristics: linear

● flow coefficient: kv=13.5 (cv=15.6)

● leakage level: class VI

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