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  • 5 leading manufacturers
  • 42 additional suppliers
  • 23 states and provinces
  • 18 related categories
  • 3 guide sections
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Relief Valve Manufacturers and Suppliers

Play Relief Valves Informational Video
Relief Valves Informational Video

IQS Directory provides a detailed list of relief valve manufacturers and suppliers. Find relief valve companies that can design, engineer, and manufacture relief valves to your specifications. Peruse our website to review and discover top relief valve manufacturers with roll over ads and complete product descriptions. Connect with the relief valve companies through our hassle-free and efficient request for quote form. You are provided company profiles, website links, locations, phone numbers, product videos, and product information. Read reviews and stay informed with product new articles. Whether you are looking for manufacturers of pressure relief valve tankless water heater, fuel pressure relief valve, steam boiler relief valves of every type, IQS is the premier source for you.

Suppliers located in CA, IL, OH +20 more states

Read the relief valve guide
Contents (4 sections)

Leading Relief Valve Manufacturers

Location

Showing all 5

Leading relief valve manufacturers
Placement No.ManufacturerLocationContactActions
1

Check-All Valve Manufacturing Company

Our check valves are manufactured with the customer in mind. We believe in offering superior products and services every time. No matter whether you are looking for small or large valves, we can meet your every needs. It is our goal to offer excellent prices and service to each customer. Contact us to learn more today!

LocationW. Des Moines, IA
View Manufacturer
2

U.S. Plastic Corp.

At U.S. Plastic Corp., we provide high-quality check valves designed to ensure reliable, one-way fluid control across a wide range of applications. Our selection includes durable, corrosion-resistant options made from materials like PVC, polypropylene, and PVDF, making them ideal for chemical processing, water treatment, and industrial fluid handling. We offer various styles, including ball, diaphragm, and swing check valves, each engineered for optimal flow performance and minimal pressure drop.

LocationLima, OH
View Manufacturer
3

Davis Valve

At Davis Valve, we provide check valve solutions designed to protect systems by controlling flow direction and preventing backflow in demanding industrial applications. We supply check valves engineered for dependable operation, consistent sealing, and long service life in environments where pressure fluctuations and continuous operation are common.

LocationMemphis, TN
View Manufacturer
4

Kepner Products Company

At Kepner Products Company, we provide precision fluid control solutions for customers who need dependable valve performance in hydraulic, pneumatic, and process systems. Our company focuses on check valves and hydraulic valves that regulate flow, prevent reverse movement, protect components, and support safe equipment operation. We serve OEMs, engineers, maintenance teams and distributors with components built for reliable response, compact installation, and long-term service in demanding uses.

LocationVilla Park, IL
View Manufacturer
5

Red-White Valve Corp

At Red-White Valve Corp, we take pride in delivering premium-quality check valves designed to meet the highest performance and reliability standards. Our check valves are essential for controlling one-way flow and preventing backflow in a wide range of applications, ensuring the efficiency and safety of fluid systems. With decades of experience, we have developed a comprehensive line of check valves, available in various sizes and materials to meet the specific needs of our customers.

LocationLake Forest, CA
View Manufacturer
Draft

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Additional Relief Valve Companies

The category’s other relief valve companies are listed on their own page, with location, phone and website where each supplier provides them.

View 42 Additional Relief Valve Companies

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Quick Answers

How many relief valve manufacturers are listed on IQS Directory?
5 leading manufacturers and 42 additional suppliers.
Where are relief valve manufacturers located?
The listed suppliers are in 23 states and provinces: California (5), Illinois (5), Ohio (4), Pennsylvania (4), Michigan (3), North Carolina (3), Alabama (2), Connecticut (2), and 15 more.
How do I get quotes from relief valve suppliers?
Select suppliers in the table and choose Request Quotes. IQS reviews your request and forwards it to every supplier you select.

Relief Valves

3 sections

A relief valve is a type of valve used to control or limit the pressure in a system.

Applications of Relief Valves

Also known as pressure relief valves (PRV), pressure safety valves (PSV), and safety valves, these systems act as a safety measure. They relieve excess pressure from equipment failure, process upset, or fire by opening an auxiliary passage to divert the fluid (liquid, gas, steam or air) away from the pressure vessel. Once the pressure in the vessel is released and the danger is over the relief valve closes itself. Emergency situations are not the only times relief valves are active; once installed they continuously regulate the flow of substance. They can also be pre-set to open when the pressure or temperature gets to a certain point that may be dangerous.

Relief Valve Design

Generally valves are placed on or near the pump head of the hose, pipe, or tube. A wide variety of relief valve designs exist, although most resemble ball-check valves, swing check valves or diaphragm valves. This last is particularly useful when controlling a flow of fluids that contains suspended solids. Most relief valves are spring operated, as are the majority of check valves. One specialized type of relief valve is known as a vacuum relief valve. As opposed to a normal relief valve, which relieves high pressure, a vacuum relief valve is used to relieve dangerously low pressures, or vacuums, by inserting air or an inert gas.

Relief valves may be constructed from a variety of materials, including:

  • PVC
  • Brass
  • Ductile Iron
  • Copper
  • Polyethylene
  • Polypropylene
  • Aluminum
  • Steel
  • Stainless Steel
  • Rubber

Factors to Consider When Purchasing Relief Valves

Which raw substance is used to produce each relief valve depends on the environment said relief valve will be in. The wrong product could result in erosion or contamination of the process stream. However, as long as research is done, finding the appropriate type of relief valve is possible. Every plumbing or fluid transfer application in the industrial, commercial, and domestic arenas employ or will employ check valves. In fact, check valves of all kinds are an essential part of every day life. Because they need not be supervised to function and prevent product malfunction, check valves are not only desirable but often required by law to ensure the safety of water, gas, and pressure applications.

 


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