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LFC™_3B Spring Acting Surge Relief Valves

LFC 3B Spring Acting Surge Relief ValveOVERVIEW

A surge relief valve is designed to open when a over pressure situation occurs and thereby prevent excessively high pressures from putting people and equipment at risk.

The LFC™_3B spring acting surge relief valve has been developed to present a robust and simple and cost effective low pressure (up to 2.5 MPa / 363 Psi) solution to fluid handling issues in any industrial sector.

SIMPLICITY

The LFC™_3B spring acting 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 assembly together with a spring are designed to use inline fluid pressure to create specific conditions in the system without the use of an external controller or pilot.

A fixed opening force can be established by fixing the surface area ratio exposed to the upstream pressure and the spring combined. Upstream pressure (Pu) would act to open the valve. As the Pu increases, the opening force increases proportionally causing the spring to compress and the valve to open. If Pu is reduced, the valve will close proportionally in an effort to maintain its hydraulic ratio and spring force combined.

The LFC™_3B spring acting surge relief valve relief pressure can be adjusted within the spring range.

LOW MAINTENANCE REQUIREMENT

All the moving parts of LFC™_3B Surge relief valve are manufactured from stainless steel which increases reliability and durability. The LFC™_3B requires minimal maintenance, the majority of which, can be conducted with the valve remaining in situ.

MATERIALS OF CONSTRUCTION & DIMENSIONS

LFC 3B Spring Acting Surge Relief Valve MC

FLOW RATES

LFC 3B Spring Acting Surge Relief Valve FR

VALVE SIZING

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

DESIGN AND MANUFACTURING STANDARDS

The LFC™_3B 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 ANSI B16.3
ANSI B16.34 ANSI B16.37
ANSI Bl6.5 ANSI N278 .1

Available sizes: DN50 / 2" to DN400 / 16"
Face to face dimensions to ANSI B16.10
Pressure rating: up to 2.5 MPa / 363 psi

Available end connections: ANSI Bl6.5, BS4504, BS10, AS/NZS 4331.1 (ISO 7005-1) DIN, Victaulic and other as per client’s requirement.

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