Pressure Relief Valves

Secure your high-pressure industrial systems with Frigate’s high-performance Pressure Relief Valves, engineered to deliver precise overpressure protection up to 20,000 psi. Manufactured from premium corrosion-resistant alloys, these valves ensure ultimate reliability and safety in the most demanding environments.

Materials of Construction (M.O.C)

CS / AS / SS / DSS / SDSS / SASS / MONEL / HASTELLOY / INCONEL

Size Range Availability

1/4″ to 1/2″

Maximum Pressure Rating

Up to 20,000 psi

Opening Set Pressure Range

20 psi to 3,000 psi (and as per customer requirements)

End Connection Options

NPT / Tube OD

Order Type

Quantity Range

Lead Time*

Standard Order

1 – 50 units

2 – 3 Weeks

Bulk Order

51 – 250 units

4 – 5 Weeks

High-Volume Contract

251+ units

6 – 8 Weeks

Custom Configuration

Project-specific basis

5 – 7 Weeks

*The lead times shown above are indicative. Actual schedules may vary depending on material availability, order complexity, and factory workloads.

Product Description

Frigate’s Pressure Relief Valves are engineered to automatically safeguard critical systems by releasing excess pressure when it exceeds pre-set limits, preventing catastrophic equipment failure. Offering versatile connection options like NPT and Tube OD, these valves provide seamless integration into your existing high-pressure fluid and gas architectures.

Available Component Configurations

M x F Type, OD Type, High Pressure, OD x F Type, OD x M Type, Knob Type, F x F Type

Flow Configuration / Body Pattern

Right-Angle (90°) flow architecture (Bottom Inlet, Side Outlet)

Orifice Diameter

0.125″ (3.2 mm) to 0.187″ (4.7 mm) engineering configurations

Blowdown / Reseating Pressure

Less than 15% of the calibrated opening set pressure

Seating Design

Heavy-duty metal-to-metal / Optional high-performance soft seat

Operating Temperature Range

-29°C to 232°C (subject to material and seal selection)

Flow Coefficient (Cv)

0.15 to 0.45 (dependent on nominal size configuration)

Testing Compliance Standards

API 527 / MSS SP-61 factory leak testing protocols

Compatible Application Media

Gases, clean liquids, vapors, and aggressive chemical streams

Actuation / Adjustment Mechanism

Spring-loaded direct acting / Manual adjustment knob

Nominal Valve Size (inches)

Stem Diameter (mm)

Body Height (mm)

Total Component Length (mm)

1/4″

110

3/8″

122

1/2″

9.5

135

Technical Advantages

Designed for extreme operational reliability, our valves support customizable opening set pressures from 20 psi to 3,000 psi to match precise process tolerances perfectly. Furthermore, the extensive choice of specialized superalloys including Inconel, Monel, and Hastelloy guarantees exceptional long-term wear and corrosion resistance in highly aggressive media.

Compliances

ISO 9001:2015

ISO 14001:2015

ISO 45001:2018

Let's Get Started

Need reliable valve for your next project? Get in touch with us today, and we’ll help you find exactly what you need!

Industry Applications

Chemical Processing

Ideal for managing hazardous, highly corrosive chemical media, ensuring system integrity across diverse reactor lines and aggressive processing networks.

Oil and Gas

Engineered to manage extreme upstream and downstream pressures, preventing catastrophic overpressure incidents on offshore rigs and refineries.

Power Generation

Provides reliable overpressure protection for critical steam, boiler feed, and auxiliary fluid systems within modern power plants.

Aerospace & Defense

Delivers precise calibration and durable media isolation required for complex test rigs, ground support systems, and high-pressure fuel lines.

Pharmaceutical Production

Ensures absolute purity and rigorous safety compliance in high-pressure cleanrooms, sterile process piping, and sanitization systems.

Water Treatment

Safely handles high-pressure desalination pumps and chemical dosing systems, preventing line ruptures and safeguarding downstream equipment.

Frigate Approved Quality Management System

At Frigate, quality is built into every stage of manufacturing. Our approved Quality Management System ensures that every material component.

Incoming Material Checking

Before production begins, all incoming materials are checked against specifications, drawings, and supplier documents.

In-Process Inspection

Quality is monitored during manufacturing to prevent defects and maintain process consistency.

Final Dimensional Checking

Finished parts are inspected before dispatch to confirm compliance with customer drawings and tolerances.

Packaging Control

Finished components are packed safely to prevent damage during handling and transportation.

Incoming Material Checking

In-Process Inspection

Final Dimensional Checking

Packaging Control

Quality Document

To help buyers evaluate our quality systems, we provide sample documents that reflect our inspection and reporting standards.

How We Delivered

Complex geometries engineered solutions that move businesses forward.

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Units Manufactured Monthly

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Defence-Grade Cable Supply

Cost savings

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Flange Assembly for Pump

Faster Production

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Having Doubts? Our FAQ

Our valves are manufactured using a wide range of premium materials including Carbon Steel (CS), Alloy Steel (AS), Stainless Steel (SS), Duplex (DSS), Super Duplex (SDSS), Super Alloy (SASS), Monel, Hastelloy, and Inconel to ensure maximum compatibility with your operational media.

Can the opening set pressure be customized beyond the standard range?

Yes. While our standard opening set pressure range spans from 20 psi to 3,000 psi, Frigate can custom-engineer and factory-calibrate specific set pressures to accommodate your explicit engineering requirements.

What types of end connections and layouts do you provide?

We offer versatile connection options including Male-to-Female (M x F), Female-to-Female (F x F), and Tube OD configurations, across specialized model configurations such as standard OD types, high-pressure models, and knob-controlled variations.

What is the maximum pressure threshold for these valves?

These heavy-duty industrial valves are specifically engineered to withstand extreme high-pressure operations, offering a secure maximum design pressure rating of up to 20,000 psi.

Are these pressure relief valves suitable for handling highly corrosive fluid lines?

Absolutely. By selecting high-grade superalloys like Inconel, Hastelloy, or Super Duplex Stainless Steel from our M.O.C list, the valves exhibit exceptional resistance against localized pitting, cracking, and severe chemical corrosion.

We'd love to Manufacture for you!

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LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

Other Locations

GENERAL ENQUIRIES

LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

Components Built for Critical Performance

Engineered Products for Critical Applications

Pressure Relief Valves

Order Type

Quantity Range

Lead Time*

Product Description

Available Component Configurations

Flow Configuration / Body Pattern

Orifice Diameter

Blowdown / Reseating Pressure

Seating Design

Operating Temperature Range

Flow Coefficient (Cv)

Testing Compliance Standards

Compatible Application Media

Actuation / Adjustment Mechanism

Nominal Valve Size (inches)

Stem Diameter (mm)

Body Height (mm)

Total Component Length (mm)

Technical Advantages

Compliances

ISO 9001:2015

ISO 14001:2015

ISO 45001:2018

Let's Get Started

Industry Applications

Frigate Approved Quality Management System

Quality Document

How We Delivered

Having Doubts? Our FAQ

We'd love to Manufacture for you!

LOCATIONS

Registered Office

Operations Office

Other Locations

GENERAL ENQUIRIES

LOCATIONS

Registered Office

Operations Office

Other Locations

GENERAL ENQUIRIES

Get Your Quote Now

Pressure Relief Valves

Get Latest Price

Pressure Relief Valves

Get Latest Price