PRESSURE REDUCING VALVE
EFVD
- Self-operated piston type pressure reducing valve for liquids, compressed air and non-hazardous gases
- Available from DN15 to DN100 with DIN / ANSI flanged or BSP / NPT threaded connections
- Stable downstream pressure regulation with stainless steel trim and ATEX approved configurations
Applications
Configured Service Scope
ATEX / Hazardous Area
Compressed Air
Gas
Liquid Service
Water
Key Specifications
NOMINAL SIZESDN15 to DN100
PRESSURE RATINGSPN16 / PN40, ANSI Class 150 / 300
TEMPERATURE RANGE-10°C to +80°C (up to +150°C on request)
CONNECTIONSDIN / ANSI RF flanged, BSP / NPT threaded
BODY MATERIALSCF8M stainless steel / RG10 bronze / WCB carbon steel
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FAQs
The EFVD is designed to reduce and stabilize downstream pressure automatically in liquid, compressed-air and non-hazardous gas systems.
A self-operated pressure reducing valve uses the process pressure itself to regulate downstream pressure and does not require external power or an actuator.
A pilot-operated pressure reducing valve uses a separate pilot stage to control the main valve and may be selected for different control or capacity requirements.
The EFVD is a self-operated piston-type pressure reducing valve.
The published service scope includes liquids, compressed air and non-hazardous gases. Final compatibility depends on the selected materials, seals, pressure and temperature.
The EFVD is available from DN15 to DN100.
ABOUT EFVD
The EFVD is a self-operated, piston-type pressure reducing valve designed to maintain stable downstream pressure in liquid, compressed-air and non-hazardous gas services. It operates without an external actuator or auxiliary power source, providing automatic pressure control for industrial utility and process systems.
Available from DN15 to DN100, the EFVD can be supplied with DIN or ANSI RF flanged connections and BSP or NPT threaded ends. Available body materials include CF8M stainless steel, RG10 bronze and WCB carbon steel, with stainless-steel internal trim and balanced sealing elements.
The EFVD is intended for industrial water systems, compressed-air networks, utility services and compatible process applications requiring stable outlet pressure and straightforward maintenance. Configurations for temperatures up to +150°C and ATEX-approved executions are available on request.
Frequently Asked Questions
The EFVD is designed to reduce and stabilize downstream pressure automatically in liquid, compressed-air and non-hazardous gas systems.
A self-operated pressure reducing valve uses the process pressure itself to regulate downstream pressure and does not require external power or an actuator.
A pilot-operated pressure reducing valve uses a separate pilot stage to control the main valve and may be selected for different control or capacity requirements.
The EFVD is a self-operated piston-type pressure reducing valve.
The published service scope includes liquids, compressed air and non-hazardous gases. Final compatibility depends on the selected materials, seals, pressure and temperature.
The EFVD is available from DN15 to DN100.
Published configurations include PN16, PN40, ANSI Class 150 and ANSI Class 300.
The published maximum inlet pressure is 40 barg, depending on the selected configuration.
The published outlet-pressure regulating range is 1.5 to 16 barg.
The EFVD can be supplied with DIN or ANSI RF flanged connections and BSP or NPT threaded ends.
Available body materials are CF8M stainless steel, RG10 bronze and WCB carbon steel.
Depending on the service conditions, the EFVD can be supplied with NBR, PTFE or graphited PTFE sealing elements.
Yes. The standard published temperature range is -10°C to +80°C, with configurations up to +150°C available on request.
ATEX-approved configurations are available. The exact certification scope should be confirmed for the selected execution and hazardous-area requirements.
The piston-operated design provides stable pressure regulation, compact construction and straightforward maintenance for industrial utility systems.
Yes. Compressed-air distribution and industrial pneumatic utility networks are included in its intended service scope.
Yes. Internal sealing and regulating components can be serviced or replaced according to the valve configuration and maintenance requirements.
Yes. EN 10204 3.1 certificates and project documentation can be supplied on request.
Yes. The recommended EFVD installation shown in the datasheet includes an upstream filter.
This helps protect the regulating and sealing components from debris and contamination in the process line.
A downstream safety valve may be required where failure of the pressure reducing valve could expose downstream equipment to pressure above its allowable limit.
The recommended EFVD installation includes a separate downstream safety valve. It must be selected independently according to the downstream equipment and credible overpressure scenario.
Typical information includes the process fluid, inlet pressure, required downstream pressure, maximum and minimum flow rate, operating temperature, piping size, required connection standard and body material requirements.
These data allow the appropriate valve size, Kv and pressure-regulation range to be reviewed.
Yes. The EFVD can be considered for EPC and project-managed applications where inlet and downstream pressures, flow conditions, materials, connections, inspection and documentation requirements are defined during the RFQ stage.
The current product scope includes EN 10204 3.1 certificates and project documentation on request.