Stainless Steel, Brass, Aluminium Alloy

Material

1/4" - "4"

Size

NPT/BSPT/BSPP

Thread

Valves and Filters

Pressure Relief Valve V-035

A safety valve is a protective device designed to prevent excessive pressure buildup within equipment and pipelines. When the pressure within a system or device exceeds safe limits, this spring-loaded pressure valve automatically releases excess medium (liquid or gas), thereby preventing leaks, explosions, or other hazards.

The opening pressure of the valve can be adjusted within the safe range to a set value, which should be set at or near the system pressure release action value to prevent mis operation. The adjustable safety valve consistently operates as required within a good safety margin (sufficiently close to the set value), thereby reducing operational errors.

Pressure Relief Valve V-035

The V-035 safety valve serves as the ultimate safeguard in any pressurized system. Acting as a vigilant guardian, it activates when pressure exceeds the preset safety threshold: the spring-loaded mechanism opens the valve, venting excess liquid or gas through a secure outlet. This automatic release effectively prevents pressure from escalating to critical levels that could cause pipe ruptures, equipment failure, or safety incidents. The valve automatically resets after each release without manual intervention, eliminating additional concerns. Constructed from materials resistant to harsh environments, this safety relief valve offers a standard working pressure range up to 600 psi (PN40). Its temperature tolerance is equally extensive: with PTFE seals, it withstands environments from -20°C to 200°C (-4°F to 390°F), while its all-metal seal design endures temperatures as high as 400°C (750°F). The stainless steel, brass, or aluminum alloy construction delivers both exceptional corrosion resistance and high strength.

 

In practical applications, this valve is widely used across multiple industries due to its reliability. It effectively handles water, oil, gases, steam, and other media. During transient pressure spikes—such as pump start-ups or process anomalies—the V-035’s quick-acting spring rapidly releases peak pressure. A tight sealing design and premium materials ensure reliable valve closure with minimal leakage once pressure returns to normal levels. Its rapid opening/closing capability and robust construction guarantee extended service life even under continuous or repetitive use.Whether in petrochemical plants, hydraulic power units, or food processing lines, safety valves ensure pressure remains safe and stable, preventing accidents or equipment shutdowns.

Features

Automatic Pressure Relief Function

When system pressure exceeds the preset value, the relief valve automatically activates to release excess pressure, preventing equipment damage and ensuring personnel safety. As an automatic pressure relief device, it provides instantaneous overpressure protection for pipelines, storage tanks, and pressure vessels.

High-Pressure Tolerance

Manufactured from high-strength stainless steel, brass, or aluminum alloy, this relief valve is an ideal pressure-resistant material for high-pressure systems. Suitable for hydraulic and industrial equipment, it offers exceptional high-pressure endurance and reliability.

Instantaneous Response Speed

Equipped with a precision-calibrated, high-sensitivity spring, the relief valve responds immediately and initiates pressure release protection when pressure exceeds the valve's set limit. The pressure safety valve's rapid-response design effectively limits peak pressure fluctuations, preventing equipment damage from transient events.

Precise Calibration

Opening pressure can be finely adjusted to meet system requirements. This precision ensures the valve activates only when necessary, avoiding false trips while delivering reliable protection within strict safety margins.

Applications

Petrochemical

The pressure relief valve can be installed on process columns, separators, and storage tanks to prevent overpressure in upset conditions. Corrosion-resistant models and certified set-pressure tested for reliable operation under hostile hydrocarbon conditions.

Hydraulic Systems

For preventing pressure spikes in the system, a relief safety valve may be used on pump discharge piping and hydraulic accumulators. Rapid response reduces danger to pumps, seals, and downstream piping on sudden load change.

Power Generation & Boilers

A relief high-pressure valve protects boilers, heat exchangers, and pressure vessels against dangerous overpressure. Smooth opening and re-seating provide plant safety and reduce forced outages.

Food, Beverage & Pharmaceutical

Sanitary or stainless steel adjustable pressure relief valves can be applied to protect pressurized process vessels and sanitary tanks. Precise set-pressure control prevents contamination events while meeting regulatory safety requirements.

Specs

Product Specifications

Size Range

“1/4” – “4”

Materials

Stainless Steel/Brass/Aluminum Alloy

Thread Type

NPT/BSPT/BSPP

Temperature Range

-20℃ to 200°C

Maximum Pressure

300 psi

 

Logistics and Certifications
CertificateISO 9001:2015,IS014001:2015, CE, ROHS, KC, etc..
PackagePVC bag for each piece.Cartons with pallet/out pallet/wooden boxes
PortNingbo/Shanghai, China Or other port on request.
SampleOffer free samples and freight collected
Delivery DetailAccording to the quantities and specifications of each orderA complete stock to provide fast deliveries for small orders.Normal delivery times is from 30 to 45 days after receiving the deposit
Generic ApplicationsOil and Gas, Chemical, Food and Beverage, Agricultural Irrigation
Installation Guide

When selecting a pressure relief port, ensure it directs discharge to a safe area or piping system. Pipelines must be shut off and drained prior to work. Safety relief valves should be installed vertically whenever possible, with no obstructions at the outlet. Use appropriate thread sealant and hand-tighten threads to prevent stripping; tighten to recommended torque values. Install drain collectors or piping, ensuring proper slope away from personnel areas. Adjusting screws should be positioned for accessibility while remaining protected. For steam or high-temperature fluids, incorporate cooling and drainage provisions. During installation, set the relief pressure, conduct a controlled lift test, followed by a leakage test to verify proper valve stem reset. Document the set pressure and test data to comply with safety regulations.

After-Sales Maintenance

At Procamlock, we ensure every relief valve delivers consistent performance and extended service life. Our dedicated after-sales service team assists with relief valve component replacement, safety relief valve maintenance operations, and resolves various technical challenges. We also provide access to genuine spare parts channels, ensuring your automatic safety valves operate efficiently and reliably. Whether you need quick maintenance tips or comprehensive overhaul guides, our support team is committed to keeping your safety valves performing at their best long after purchase.

 

FAQs

Looking for answers about Pressure Relief Valve? Visit our FAQ section for detailed information and expert insights.

What is the difference between a Relief Valve and a Safety Valve?

Both are to avoid overpressure, but Safety Valves are mainly for steam/gas with quick full-opening, while Relief Valves are for liquid and gas and can provide more moderate pressure relief.

Depending on the frequency of use and operating conditions, we would usually recommend checking every 6–12 months. If functional issues are detected, maintenance or replacement should be performed at the right time.

With low set pressure or large system pressure fluctuations, this could occur. Adjustments should be made immediately.

Yes, the Pressure Relief Valve will shut off automatically as soon as it detects that pressure has returned to a safe level.

No, we recommend not to. It should be connected to a safe discharge pipe so that it won’t have the ability to inflict injury or contamination to the environment.

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