PRESSURE REDUCING VALVE
EFPRV30
- Direct-acting piston regulator for stable downstream pressure without external power
- DN15 to DN25 with flanged DIN / ANSI or threaded BSP / NPT connections
- Stainless steel 316L construction for water, compressed air and neutral gases
Applications
Configured Service Scope
ATEX / Hazardous Area
Compressed Air
Gas
Liquid Service
Water
Key Specifications
NOMINAL SIZESDN15 to DN25 , 1/2" to 1"
PRESSURE RATINGPN16 , ANSI Class 150
CONNECTIONSFlanged DIN / ANSI , Threaded BSP / NPT
Kv VALUES2.0 / 2.5 / 3.5 m³/h (Reduced Kv / Cv available on request)
TEMPERATURE RANGE-30°C to +80°C with NBR seals / -10°C to +125°C with EPDM seals / -10°C to +150°C with VITON seals
BODY MATERIAL1.4404 Stainless Steel / SS 316L
CERTIFICATION / CLASSIFICATIONPED 2014/68/EU classification , ATEX approved
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FAQs
The EFPRV30 is used to reduce and regulate downstream pressure in small industrial lines handling compressed air, water, neutral gases and compatible liquids or gases.
Yes. The EFPRV30 is a self-operated, direct-acting pressure reducing valve. It does not require external power, an air supply or electrical actuation to regulate pressure.
The valve regulates outlet pressure through a piston-and-spring system. When downstream pressure rises above the set pressure, the valve tends to close. When pressure drops, it opens to maintain the regulated outlet pressure.
The EFPRV30 is available in DN15, DN20 and DN25, equivalent to 1/2", 3/4" and 1".
ABOUT EFPRV30
The EFPRV30 pressure reducing valve is a self-operated, direct-acting piston regulator designed to control and stabilize downstream pressure automatically in liquid and gas services. The valve tends to close as outlet pressure rises, helping maintain the regulated pressure without an external power source.
Available from DN15 to DN25, the EFPRV30 can be supplied with DIN / ANSI flanged connections or BSP / NPT threaded ends. Its compact design is intended for industrial installations requiring reliable pressure regulation. The valve is manufactured primarily in 316L stainless steel, with PTFE gaskets and elastomer seals selected according to service temperature and fluid compatibility.
The EFPRV30 is suitable for compressed air, water and neutral gases, as well as compatible Group 2 liquids and gases. Reduced Kv / Cv versions and special gaskets are available on request for specific process requirements.
Frequently Asked Questions
The EFPRV30 is used to reduce and regulate downstream pressure in small industrial lines handling compressed air, water, neutral gases and compatible liquids or gases.
Yes. The EFPRV30 is a self-operated, direct-acting pressure reducing valve. It does not require external power, an air supply or electrical actuation to regulate pressure.
The valve regulates outlet pressure through a piston-and-spring system. When downstream pressure rises above the set pressure, the valve tends to close. When pressure drops, it opens to maintain the regulated outlet pressure.
The EFPRV30 is available in DN15, DN20 and DN25, equivalent to 1/2", 3/4" and 1".
The available pressure ratings are PN16 and ANSI Class 150, depending on the selected connection configuration.
The maximum inlet pressure is 25 barg, according to the catalogue.
The available regulating ranges are 0.5-3 barg, 1-8 barg and 4-12 barg.
The EFPRV30 can be supplied with DIN / ANSI flanged connections or BSP / NPT threaded connections.
The main valve components are manufactured in 1.4404 / SS316L stainless steel, with PTFE gaskets and elastomer seals according to the selected version.
The published configurations include NBR, EPDM and Viton seals, each with a different temperature range.
The published ranges depend on the seal material: NBR from -30°C to +80°C, EPDM from -10°C to +125°C and Viton from -10°C to +150°C.
Steam is not stated as a standard application. Suitability would need to be reviewed case by case, taking account of the seal-dependent temperature limit and the complete service conditions.
Only after technical review. The SS316L body may not be sufficient for demanding seawater or high-chloride desalination service. The complete fluid composition, chloride content, temperature and operating conditions must be considered.
Yes. Reduced Kv or Cv versions are available on request.
The standard Kv values are 2.0 for DN15, 2.5 for DN20 and 3.5 for DN25.
The published typical arrangement includes isolation valves, a filter, an inlet pressure gauge, the pressure reducing valve, a safety valve and an outlet pressure gauge. Approximately 0.5 to 1 metre before the check valve is also recommended for improved compensation.
An ATEX-approved configuration is indicated, but its exact certification scope must be checked before suitability is confirmed for a specific hazardous area.
According to the published PED classification table, CE marking is indicated as not required for Group 2 gases and liquids in the stated PN25, DN15-DN25 scope. The applicable classification should be confirmed for the supplied configuration.
Yes. Special gaskets for specific compatible fluids are available on request.
Yes. Its small size range, stainless steel construction and choice of threaded or flanged connections make it suitable for compact pressure-regulating lines, auxiliary systems and process skids.
Yes. The EFPRV30 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.
Final valve sizing and configuration should be confirmed against the actual process data and applicable project specifications.