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HANST Manual Relay Valve
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The HANST manual relay valve is a normally closed, two-position, three-way valve that requires manual operation to open a high-flow control valve. Once opened, it can remain engaged via pilot pressure or a lock pin. When the lock pin is released and pilot pressure is removed, the valve automatically closes and vents the control circuit. It is commonly used for controlling the opening and closing sequence of surface safety valves or for shutting down pneumatic safety systems in the event of typical failures.
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DetailTypical Applications
Characteristics
1. The metal material is all 316 stainless steel, which has good corrosion resistance.
2. It is designed with a larger Cv value, effectively ensuring the response speed of the system.
3. It has low leakage rate due to the use of soft sealing materials.
4. It can be used normally under the temperature condition of -40¡æ
5. The handle end is designed with a special dust-proof ring, greatly improving the service life in dusty environments such as deserts.
6. The handle end is designed with a lock pin. After opening the valve body, the lock pin can be used to keep the valve open for a long time.
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