Safety Relief Valve

Product Specification

Item	Details
Applicable Medium	Liquid & Gas
Set Pressure Range	10-60psig (0.68-3.9bar); Preset Pressure Formula: Required Pressure - 0.8×Back Pressure
Inner Diameter	4.0mm
Operating Temperature	-23℃~148℃ (-10°F~300°F)
Pressure Adjustment	Adjustable Valve Cap (on-site adjustable without disassembly)
Anti-Loose Function	Anti-Loose Holes (maintain pressure setting stably)
Sealing Materials	Optional FKM, PTFE, NBR (adapt to different media & working conditions) <superscript>1
Manual Override Handle	Optional (for set pressure <1500PSig; open valve without changing overall pressure)
Interface Size	Double Ferrule: 1/8"-1/2", 3mm-12mm; Thread: 1/4"-1/2"
Marking	Label with opening pressure range (easy to identify & use)
Body Material	316 Stainless Steel (ASTM A276-2017) <superscript>1

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Key Selling Points

- Precise Pressure Control: Professional preset pressure formula ensures accurate pressure matching; adjustable valve cap supports on-site fine-tuning, adapting to diverse working condition requirements. Anti-loose holes effectively lock pressure settings, avoiding drift caused by vibration

- Wide Adaptability: Suitable for both liquid and gas media, with operating temperature covering -23℃~148℃. Multiple sealing materials available to resist corrosion, high temperature, and wear, meeting harsh industrial environments.

- Flexible Interface & Operation: Dual interface options (double ferrule + thread) match different pipeline standards; optional manual override handle enables emergency valve opening without altering preset pressure, improving operational safety

- Reliable Safety Guarantee: Clear opening pressure label avoids misoperation; strict leakage testing (complying with QJ 1610-1989 standard) , ensuring zero leakage under normal pressure and stable pressure relief when overpressure occurs.

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Application Scenarios

Widely used in industrial systems requiring overpressure protection, including but not limited to:
• Chemical Industry (liquid/gas pipelines)
• Petroleum & Petrochemical (oil storage tanks, pipelines)
• Refrigeration Systems (coolant circulation pipelines)
• Food & Beverage (sanitary fluid systems)
• Pharmaceutical Equipment (medium conveying pipelines)
• Compressors & Pressure Vessels

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About Us

We are a professional safety valve manufacturer with 15+ years of experience in industrial fluid control. Our products are exported to 50+ countries, serving 2000+ industrial customers. We provide one-stop solutions including R&D, production, calibration, and after-sales service. Welcome to visit our factory or request samples for testing!

FAQ

Q1: What is a safety relief valve used for?
A: It is used to protect gas pipelines, regulators, valves and downstream equipment from damage caused by overpressure.
Q2: Can you customize the cracking pressure?
A: Yes, cracking pressure can be customized according to system design requirements.
Q3: What connections are available?
A: NPT, tube fitting, VCR and other connection types can be supported upon request.
Q4: Is oxygen cleaning available?
A: Yes, oxygen cleaning can be provided for oxygen and oxidizing gas applications.
Q5: What gases are compatible?
A: Suitable for inert gases, hydrogen, oxygen, nitrogen, argon and many corrosive specialty gases. Final compatibility depends on wetted materials and actual operating conditions.