RCT Reichelt Chemietechnik

Pressure relief valves, also referred to as overflow valves, ensure constant working pressures in chemical processes and laboratory applications. These valves protect systems from pressure spikes and provide precise pressure control for liquids and gases.

Material Diversity for Different Requirements

The available materials offer specific advantages for various applications:

PVC-U (Unplasticized Polyvinyl Chloride): Working temperatures up to +50°C, maximum operating pressure 10 bar at +20°C, opening pressure approx. 0.5 bar. Resistant to many chemicals and UV radiation.

PP (Polypropylene): Increased working temperature up to +70°C with the same pressure specifications as PVC-U. Excellent resistance to acids, alkalis and organic solvents.

PVDF (Polyvinylidene Fluoride): Working temperatures up to +100°C, high chemical resistance against aggressive media, UV-resistant and mechanically robust.

PTFE (Polytetrafluoroethylene): Working temperatures up to +100°C, universal chemical resistance against almost all media except alkali metals and fluorine.

Stainless Steel (1.4571): For critical applications with working temperatures up to +100°C and maximum operating pressures of 10 bar, particularly suitable for dosing pumps.

Application Areas and Specifications

For laboratory technology, pressure relief valves with internal diameters from 2.5 to 6.5 mm are available, covering performance ranges from 0.2 to 6.4 bar at flow rates up to 12 l/min. Process engineering applications use valves in nominal sizes from 10 to 50 mm with various connection options such as welding sockets or threaded connections.

The valves can be equipped with different sealing materials: EPDM for standard applications, FPM/FKM/Viton® for increased chemical resistance and FFKM/Kalrez® for extreme conditions.

Product Overview

• Pressure relief valve made of stainless steel - back-pressure safe
• Pressure relief valve made of PP - back-pressure safe
• Pressure relief valve made of PTFE - back-pressure safe
• Pressure relief valve made of PVC-U - back-pressure safe
• Pressure relief valve made of PVDF - back-pressure safe
• Pressure relief valve for liquids
• Pressure relief valve for liquids and gases
• Pressure reducing valve for liquids

All valves are characterized by absolute back-pressure safety, corrosion resistance and high mechanical strength. They enable precise dosing in pump systems and ensure constant process parameters in chemical process engineering, biotechnology and analytics.

Pressure relief valves and other products, such as diaphragm valves, check valves and control valves, are available directly in the online shop of RCT Reichelt Chemietechnik. The range of RCT Reichelt Chemietechnik offers over 80,000 different products, which are used among others in mechanical engineering, chemical technology, process engineering as well as medical technology.

Kalrez® is a registered trademark of DuPont Polymers, Inc.

Viton® is a registered trademark of The Chemours Company FC, LLC.