當(dāng)前位置：上海中石化閥門制造有限公司>>閘閥>>GFQP9K47F/H水電球閥液動Q法蘭固定Q直通球閥

GFQP9K47F/H水電球閥液動Q法蘭固定Q直通球閥

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更新時間：2024-01-26 12:48:32瀏覽次數(shù)：163次

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液動水電球閥主要適用于介質(zhì)為含泥沙的水，溫度-28~80℃的水電站時水管道上作為啟閉裝置，只能全開、全關(guān)，不能作調(diào)節(jié)用，具有流阻小、啟閉靈活、安全可靠、操作方便等優(yōu)點(diǎn)

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液動水電球閥主要適用于介質(zhì)為含泥沙的水，溫度-28~80℃的水電站時水管道上作為啟閉裝置，只能全開、全關(guān)，不能作調(diào)節(jié)用，具有流阻小、啟閉靈活、安全可靠、操作方便等優(yōu)點(diǎn)。

注：參數(shù)僅供參考，或有不全。閥門可根據(jù)要求選用不同壓力、材質(zhì)、口徑、驅(qū)動方式等。具體請來電聯(lián)系或在線咨詢。

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Adopt the piston stop water ring structure of double seal ring, it can be divided into upstream repair seal and downstream working seal. The sealing ring is arranged in the upstream and downstream sealing positions of the ring spool, and the piston stop ring is pressed to achieve sealing through the hydraulic system. When the ball valve is normally closed, the downstream working seal is closed to stop water smoothly, while when the downstream working seal is repaired or replaced, the upstream maintenance seal is closed and locked by the mechanical locking device.
The operating mechanism is a hydraulic operating mechanism (straight cylinder relay), and the straight cylinder relay is a piston-fork mechanism, which is equipped with a manual locking device, a signal indicating device for the position of the main valve and a signal indicating device for manual ingot input or release. Manual locking device can withstａnd the operating pressure of the relay, to avoid valve misoperation.
On the upper and downstream sealing ring of the ball valve, the position trip switch is set respectively. After connecting to the central control room through the circuit, the state of the sealing ring can be accurately understood, so as to operate the relayer on and off valve accurately.
The upstream of the hydraulic ball valve (main valve) is welded to the inlet pipe through the front short pipe of the valve, and the downstream is connected to the turbine volute through the expansion joint, so as to facilitate the installation and maintenance of the hydraulic ball valve (main valve) and the expansion joint adjustment.
The hydraulic ball valve (main valve) is provided with a bypass production pipeline, whose purpose is to balance the pressure at the upper and lower ends of the valve before opening the main valve, and reduce the opening and closing torque of the main valve. The by-pass valve is a hydraulic ball valve, and a manual valve is set before the hydraulic ball valve to check and repair the by-pass hydraulic ball valve.
The wedge gate valve of DN80 is arranged on the top of the telescopic joint. When the pressure steel pipe is filling water to the downstream turbine, the valve is fully open to remove air from the water surface. The manual gate valve with DN80mm and pn4.0mpa is arranged at the bottom of the ball valve and the telescopic joint degree, which is used for fully removing the dirt in the body cavity of the valve and the water in the volute during maintenance of the water turbine.
Two throttle valves are set at the two oil inlet ports of the switch of the relay, so that the opening and closing time of the valve can be adjusted according to customer requirements.

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1、技術(shù)制造按 GB12237 的規(guī)定
2、檢驗和試驗按 JB/T9092 的規(guī)定
3、法蘭尺寸按 JB79 的規(guī)定
4、結(jié)構(gòu)長度按 GB12221的規(guī)定

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