HIGH-PRESSURE SAFETY VALVE
EF1500HP
- High-pressure service up to 20,000 psig
- Compact threaded design in 316L stainless steel
- Bubble-tight soft seat for gas and liquid service
Key Specifications
Pressure Range1,500 to 20,000 psig (103 to 1,379 bar)
Temperature Range0°C to +204°C
Design TypeSpring-loaded safety and relief valve
Material316L stainless steel
ConnectionsThreaded BSP / NPT
Seat DesignSoft seat with bubble-tight shut-off
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FAQs
The EF1500HP is designed for high-pressure overpressure protection in instrumentation and process systems, especially where compact size and threaded connections are required.
The published set-pressure range is approximately 1,500 to 20,000 psig (103 to 1,379 bar), depending on the selected configuration.
The EF1500HP is designed specifically for very high-pressure service in a compact threaded configuration.
Its pressure range, compact design and bubble-tight soft-seat sealing make it suitable for applications different from conventional flanged industrial safety valves.
Its pressure range, compact design and bubble-tight soft-seat sealing make it suitable for applications different from conventional flanged industrial safety valves.
The EF1500HP is manufactured in 316L stainless steel.
Final material suitability should be checked against the actual process fluid, temperature and corrosion conditions.
Final material suitability should be checked against the actual process fluid, temperature and corrosion conditions.
ABOUT EF1500HP
The EF1500HP is a compact spring-loaded safety and relief valve designed for high-pressure overpressure protection in instrumentation and process systems, particularly where a compact threaded connection is required.
Manufactured in 316L stainless steel, the EF1500HP covers a published set-pressure range from 1,500 to 20,000 psig (103 to 1,379 bar) and an operating temperature range from 0°C to +204°C. Its soft-seat design provides bubble-tight shut-off for compatible gas and liquid services.
The set pressure is calibrated and secured at the factory. Final selection should be based on the required set pressure, fluid, operating and relieving temperature, relieving capacity, backpressure, connection requirement and project specifications.
Frequently Asked Questions
The EF1500HP is designed for high-pressure overpressure protection in instrumentation and process systems, especially where compact size and threaded connections are required.
The published set-pressure range is approximately 1,500 to 20,000 psig (103 to 1,379 bar), depending on the selected configuration.
The EF1500HP is designed specifically for very high-pressure service in a compact threaded configuration.
Its pressure range, compact design and bubble-tight soft-seat sealing make it suitable for applications different from conventional flanged industrial safety valves.
Its pressure range, compact design and bubble-tight soft-seat sealing make it suitable for applications different from conventional flanged industrial safety valves.
The EF1500HP is manufactured in 316L stainless steel.
Final material suitability should be checked against the actual process fluid, temperature and corrosion conditions.
Final material suitability should be checked against the actual process fluid, temperature and corrosion conditions.
The published operating temperature range is 0°C to +204°C, depending on the selected configuration.
The EF1500HP is supplied with threaded BSP or NPT connections.
The exact size and connection execution should be confirmed for the selected configuration.
The exact size and connection execution should be confirmed for the selected configuration.
Yes. Gas service is included in the published scope of the EF1500HP.
Final selection should consider set pressure, temperature, relieving capacity and process-fluid compatibility.
Final selection should consider set pressure, temperature, relieving capacity and process-fluid compatibility.
Yes. The EF1500HP is also intended for liquid pressure-relief applications.
The actual liquid properties and relieving conditions should be defined for final selection.
The actual liquid properties and relieving conditions should be defined for final selection.
Bubble-tight shut-off refers to a very tight seat closure under the applicable test conditions.
The EF1500HP uses a soft-seat design intended to provide bubble-tight shut-off in high-pressure gas and liquid applications.
The EF1500HP uses a soft-seat design intended to provide bubble-tight shut-off in high-pressure gas and liquid applications.
In high-pressure gas systems, even small seat leakage can result in pressure loss or continuous product leakage.
A tight-closing relief valve can therefore be particularly important in instrumentation and other high-pressure gas applications.
A tight-closing relief valve can therefore be particularly important in instrumentation and other high-pressure gas applications.
Yes. Instrumentation systems are specifically identified in the published EF1500HP product scope.
Yes. The EF1500HP can be considered for testing systems where its pressure range and configuration are suitable.
The required set pressure, capacity, fluid and test conditions should be defined before final selection.
The required set pressure, capacity, fluid and test conditions should be defined before final selection.
It can be considered for high-pressure skid or packaged systems where its pressure range, connection arrangement, fluid compatibility and relieving capacity are suitable.
Final selection should be based on the actual process and system data.
Final selection should be based on the actual process and system data.
Chemical, gas, oil and gas, and petrochemical applications are included in the published scope.
Suitability must be confirmed for the actual fluid and operating conditions.
Suitability must be confirmed for the actual fluid and operating conditions.
The EF1500HP set pressure is factory calibrated and sealed.
The required set pressure should therefore be specified when ordering.
The required set pressure should therefore be specified when ordering.
The published product information presents the EF1500HP as factory calibrated and sealed.
Field adjustment should therefore only be carried out where permitted by the applicable operating and maintenance instructions.
Field adjustment should therefore only be carried out where permitted by the applicable operating and maintenance instructions.
Yes. The published technical data permits free assembly positions. The complete installation must still comply with the applicable piping, discharge and project requirements.
No. A pressure relief valve should be selected according to the required relieving capacity and process conditions, not simply by matching the pipe or tubing diameter.
The EF1500HP is a compact high-pressure relief valve for small-bore systems using threaded connections.
An API 526 safety valve follows a standardized flanged arrangement for a different range of industrial process applications. The correct solution depends on pressure, required capacity, connection standard, applicable code and project specification.
An API 526 safety valve follows a standardized flanged arrangement for a different range of industrial process applications. The correct solution depends on pressure, required capacity, connection standard, applicable code and project specification.
Typical information includes:
- required set pressure
- process fluid
- operating and relieving temperature
- required relieving capacity
- inlet pressure conditions
- discharge or backpressure conditions, where applicable
- BSP or NPT connection requirement
- project or testing requirements
Delivery time depends on pressure range, configuration and quantity.
Specific testing, documentation or project requirements may require additional manufacturing time.
Specific testing, documentation or project requirements may require additional manufacturing time.
Yes. Inspection and testing can be arranged according to the agreed project scope.
Technical documentation, material certificates and test reports can also be supplied according to project requirements, together with export packaging and international logistics coordination.
Technical documentation, material certificates and test reports can also be supplied according to project requirements, together with export packaging and international logistics coordination.
Yes. The EF1500HP can be considered for OEM, skid-mounted and EPC or project-managed applications where set pressure, relieving capacity, connections, testing and documentation requirements are defined during the RFQ stage.
Final selection should be confirmed against the actual system data and project specification.
Final selection should be confirmed against the actual system data and project specification.