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HYDROMINE™ LFC_1B Pilot Operated Surge Relief Valves

HYDROMINE LFC 1B Pilot Operated Surge Relief Valve ImageOVERVIEW

A pilot operated surge relief valve is designed to open when an over pressure situation occurs and has an easily adjustable set pressure.

The HYDROMINE™ LFC_1B pilot operated surge relief valve has been developed to present a robust and simple and cost-effective solution to fluid handling issues in the mining sector and other industrial sectors.

SIMPLICITY

The HYDROMINE™ LFC_1B pilot operated surge relief valve is designed to minimize wearing parts and in effect only has one moving part called the plug assembly. The plug assembly is a piston that is engineered to be unbalanced. The unbalanced plug is designed to use inline fluid pressure inside the valve, as well as top of the plug assembly, to keep the valve in a closed position. 

With the assistance of an external pilot the pressure on top of the plug assembly, that can be released, and the valve will open. Upstream pressure (Pu) would act to open the valve, the pilot releases pressure from the top of the plug assembly. As the Pu increases, the opening force increases proportionally and the pilot will release more pressure. Due to this a greater volume of water being released from the top of the plug assembly, the valve is forced to move proportionally to a greater open position. This in turn causes the valve to release more upstream pressure. If Pu is reduced, the valve will close proportionally in an effort to maintain the set pilot pressure, until normal conditions are restored and the valve closes. 

LOW MAINTENANCE REQUIREMENT

All the moving parts of HYDROMINE™ LFC_1B surge relief valve are manufactured from stainless steel which increases reliability and durability. The HYDROMINE™ LFC_1B requires minimal maintenance, the majority of which, can be conducted with the valve remaining in situ.

MATERIALS OF CONSTRUCTION

HYDROMINE LFC 1B Pilot Operated Surge Relief Valve Materials

DIMENSIONS

LFC 1B Dimensions

FLOW RATES

LFC 1B Flow Rates

VALVE SIZING:

Please consult with Hydromine™ for clarification of correct sizing for your requirements.

DESIGN AND MANUFACTURING STANDARDS

The HYDROMINE™ LFC_1B pilot operated surge relief valve has been designed in accordance with various international standards as set out below:

ASME Boilers and pressure vessels design code
ANSI B16.10   API 598
ANSI B16.34   ANSI B16.37
ANSI B16.5     ANSI N278.1

Available sizes: DN50 / 2" to DN400 / 16"
Face to face dimensions to ANSI Bl6.10
Pressure rating: up to 25MPa / 3 626 psi

Available end connections: ANSI B16.5, BS4504, BS10, AS/NZS 4331.1 (ISO 7005-1) DIN, All makes of grooved or ring joint couplings, HYDROMINE™ U-Coupling, HYDROMINE™ HMP-TE tapered couplings and other as per clients requirement.

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