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A49Y沖量安全閥

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更新時(shí)間2018/5/15 17:35:13
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A49Y沖量安全閥

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A49Y沖量安全閥

A49Y沖量安全閥產(chǎn)品信息

SKU:沖量安全（A49Y）

Description:

1.The main safety valve, A49Y-Pw543.2V, DN200, and the im-pulse safety valve A49Y-Pw543.2V, DN25, should be installed togeth-er. The distance between the outlet pipe of the impulse safety valveand he inlet pipe of the main safety valve should be maintained as relatively long the distance between the electric contact pres-sure meter and the inlet pipe of the main safety valve should be no less than 5 times of the diameter of the inlet pipe, for fear that the
precision of the meter and the impulse safety valve may be affect-ed by the steam discharging process of the main safety valve.
2.Before the installation of the impulse safety valve, the pipeline shall be cleaned first.
3.The main safety valve and the impulse safety valve must be positioned vertically.
4.The main safety valve shall be fastened upon the framework,which sustains the counter-reaction force produced in the steamdischarging process of the main safety valve. The exhaust pipe of the main safety valve shall be supported with a special gallow lest the force of its weight and action would be directly apply to both the main safety valve and the flange that is connectiong them. At the lowest point of the exhaust pipe, water drainage shall be taken into consideration to avoid producing water hammer when the mainsafety valve is discharging steam.
5.The impulse safety valve and the electromagnets shall be Placed together on a special gallow The juncture of the upper lever of the valve and the electromagnets shall be flexible, with no phe-nomenon of seizure. The impulse safety valve shall be installed in aplace with little dust, dry air and convenient maintenance and de-bugging and where no vibration occurs. Its ambient temperature shall not higher than 70 , and its relative humidity not more than 80%.
6.To ensure the agile working of the impulse safety valve, the distance between the circular arc part of the head of the seat re-turning lever and the end of the pressure bar of the valve shall be adjusted to the length of the actual travel of the valve adding 1 mm（adjusted by the M10 fastening screw at the top of the cap）.