A69-Pw5414V DN100

用途Usage

主要用于電站鍋爐、壓力容器、減溫減壓裝置等設備，防止壓力超過允許zui高壓力值，保證設備安全運行。

This valve is used for power plant boilers, pressure containers, pressure and temperature reducing devices and other facilities. It serves
to prevent the pressure from exceeding max. allowable value and ensure the safety of the device during working.

結構簡述 Struture briefing

1、閥門為雙排汽、兩端為法蘭連接結構。主要由閥體、閥蓋、緩沖容器、活塞室、閥瓣、閥桿等零件組件。
2、當介質壓力升高至整定壓力時，沖量安全閥打開，介質從脈沖管進入主安全閥的活塞室，推動活塞下降，使閥門自動打開，當沖量閥關閉時，閥瓣又自動關閉。
3、密封面用鈷基硬質合金堆焊而成，閥瓣經熱處理，提高了硬度。

1. The structure of the valve of double exhaust and both of its ends are connected with flange. It is mainly consisted of boby, bonnet,cushion container, piston chamber, disc, stem and other parts.
2.When the medium pressure rises to the set pressure, the impulse safety valve opens, and the medium in the impulse pipe enters into the piston chamber of the main safety valve from impulse pipe, forcing the piston descend, and then the valve automatically opens; when the impulse safety valve closes, the disc will also automatically close.
3.The sealed surface is made of hard alloy of cobalt by overlaying welding. Through thermal treatment, the hardness of disc is improved.

安裝說明 Installation instruction

1、主安全閥門必須垂直安裝在設備的zui高位置。
2、主安全閥緊固在支座上，支座承受主安全閥排汽時產生的反作用力。
3、排汽管應有專門吊架，排汽管重量不許加在主安全閥上，主安全閥與排汽管之間的連接法蘭應消除任何的附加預應力。
4、排汽管的zui低點應考慮疏水，以免排汽時產生水擊。

1. The main safety valve shall be installed vertically at the highest position of the deivce.
2. The main safety valve shall be fastened upon the gallow, Which sustains the counterforce produced in the steam discharging process of the main safety valve.
3. The exhaust pipe shall contain a special gallow to prevent the force of its weight directly applying on the main safety valve. The connecting lange between the main safety valve and exhaust pipe shall eliminate anyextra stress.
4. At the lowest point of the exhaust pipe, water drainage shall be taken into consideration to avoid producing water hammer while discharging steam.