The Basics of a Rubber Pinch Valve

A rubber pinch valve is a valve that is used to control the flow of fluids. The two main parts of a pinch valve are the Metal body and the Rubber membrane. In this article, we will discuss the differences between these two components, as well as their application. You will learn how to choose the right type of rubber pinch valve for your application.

Rubber sleeve

Rubber pinch valve sleeves can be a great option for many applications. They can be manufactured from many different types of rubber and are available in different materials, such as fiber-reinforced and multi-layered. These sleeves are designed with the proper properties to withstand high application cycles. For example, neoprene is suitable for food and water applications, and natural rubber is ideal for waste water and abrasive materials.

Pinch valve sleeves are manufactured using several different manufacturing processes. These procedures include hand-winding processes, conventional injection processes, and manual packaging in moulds. The material and structure of the sleeve plays an important role in the cycle frequency and closing/opening characteristics of the valve. The quality of the elastomer used in pinch valve sleeves is also critical to the valve’s durability and life time.

Metal body

Metal bodies are a common choice for rubber pinch valves, and a rubber sleeve is not the only consideration. The material used for the sleeve must be able to withstand the rubber pinch valve temperature and pressure expected for the application. Another consideration is the overall life of the valve. A properly designed sleeve will help ensure the valve operates efficiently and lasts for a long time.

A metal body for a rubber pinch valve should be of the proper size for the type of application. For example, a 1/2″-10″ pinch valve should be made of cast grey iron. The pinching mechanism must be full-round and dual pinch on centerline. The sleeve must also be reinforced with nylon or polyester cords. Lastly, the pinch bar and the valve body should be isolated from one another by bolts.

Rubber membrane

A pinch valve membrane is a simple, reliable component in a wide variety of applications. These valves are used to control the flow of liquids and gases. They are used in chemical applications, food and beverage lines, and pharmaceutical manufacturing processes. They are certified for use in EX zones and can handle all abrasive media up to 80°C.

The advantages of using a pinch valve membrane over a conventional valve include its versatility and ease of replacement. A pinch valve has two main designs: one with a body exposed and one with a sleeve on the outside. The former has a streamlined flow pattern, while the latter is laminar in nature and is more prone to wear and tear.


The rubber pinch valve is a simple valve designed to control flow. Its rebounding property causes it to open and close when external pressure is applied. This helps to prevent the valve from being clogged. As a result, it is ideal for a wide range of applications. These valves have a very long service life and offer excellent performance. They are particularly useful in proportional control applications and can be found in many different industries.

The main advantages of pinch valves are their reliability, ease of use, and low-cost design. The sleeve helps isolate flow media from the environment, minimizing contamination. These valves are often found in single-use disposable systems such as sewage treatment and chemical processing. In addition to their low cost, pinch valves are easy to replace.