Kunkle Safety and Relief Valves

Control Specialties is a trusted distributor of Kunkle safety and relief valves, serving industrial customers across North America. Kunkle Valves is a leading manufacturer of high-quality safety and relief valve products in all types of materials and connections for commercial and industrial applications. Their product line covers liquid, air, steam, and non-hazardous gas service.

When it comes to sourcing Kunkle relief valves, Control Specialties supports fast quoting, no minimum order requirements, and application guidance to help you select the correct code-compliant valve.

Are you looking for the right Kunkle valve for your system?

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What are Kunkle Safety and Relief Valves?

Kunkle relief valves are spring-loaded pressure relief devices engineered to open automatically when a system pressure exceeds a preset limit. They protect equipment, pipelines, and personnel from the hazards of overpressure by venting excess fluid or gas safely and efficiently.

Once pressure returns to an acceptable level, the valve reseats and resumes normal operation. Kunkle safety relief valves are available in bronze, steel, brass, and stainless steel and are built to applicable ASME code requirements (commonly Sections I, IV, and VIII, depending on service). Capacity certifications are issued through the National Board, with code stamps such as “V” and “UV” where applicable.

Kunkle Safety and Relief Valves We Offer

Steam Safety Relief Valves

Kunkle steam safety relief valves deliver reliable overpressure protection for boilers, generators, compressors, sterilizers, and autoclaves. Engineered with full nozzle designs and O-ring seat options, they ensure superior leak-free performance and long service life in high-temperature steam environments.

Liquid Relief Valves

Kunkle liquid relief valves safeguard pumps, tanks, pipelines, and hydraulic systems against overpressure damage. Their compact, tight-shutoff designs handle a wide range of liquids, including corrosive media such as acids, caustics, and ammonia, making them ideal for demanding industrial service.

Air and Gas Safety Valves

Kunkle air and gas safety valves provide ASME-certified overpressure protection for compressed air, non-hazardous gases, and vapor systems. Featuring easy blowdown adjustments and optimal flow performance, they also support vacuum service and cryogenic applications, offering versatile protection across a broad range of operating conditions.

Industries We Serve with Kunkle Safety and Relief Valves

  • Oil & Gas
  • Chemical Processing
  • Power Generation & Steam Systems
  • Food, Beverage & Pharmaceutical
  • Water & Wastewater Treatment

Choosing the wrong safety relief valve can lead to costly downtime or compliance failures. Our comprehensive guide to selecting the right safety and relief valve breaks down the critical factors, pressure range, temperature limits, media type, and certifications, so your system stays protected.

Connect with our experts for personalized guidance and a quick quote.

Frequently Asked Questions (FAQs)

Is Control Specialties an authorized Kunkle distributor?

Yes. Control Specialties is an authorized distributor of Kunkle safety and relief valves, offering genuine products with full manufacturer backing and technical support. Call 1-800-752-0556 for real-time availability and pricing. We are available 24/7.

What is the difference between a Kunkle safety valve and a relief valve?

Both protect systems from overpressure, but they work differently.

A Kunkle safety valve is used on compressible media, such as steam or gas, and opens rapidly at a set pressure. Kunkle offers both types, as well as a combination safety relief valve that handles either service.

A relief valve is used on liquid-filled systems and opens gradually as pressure rises.

What information do I need to select the right Kunkle safety and relief valve?

You need connection size/type, set pressure, operating temperature, back pressure, media type (steam, gas, & liquid), and required capacity. This ensures accurate sizing and proper valve selection for safe, efficient system performance.

Are Kunkle relief valves ASME certified?

Yes. Kunkle valves comply with ASME Sections I, IV, and VIII, with National Board-certified capacities. They also meet global certifications such as CRN, PED, TUV, and Chinese standards, ensuring suitability for both domestic and international applications.

How often should Kunkle safety and relief valves be tested and maintained?

Kunkle recommends testing every six months as part of preventive maintenance. Use the lever or pin to verify operation. Regular inspections help detect leaks, debris, or worn components, ensuring reliable performance and system safety.

Do I need a safety relief valve or a rupture disc?

Choose a safety relief valve for reusable, controlled pressure release and frequent cycling. Opt for a rupture disc for one-time protection in highly corrosive, high-pressure, or fast-response scenarios. Many systems use both together for layered overpressure protection.