Plastic valves
Chemical-resistant plastic valves for aggressive media.
The special solution for special requirements
High-quality plastic valves have proven themselves for precisely such cases. They are the first choice when it comes to regulating and controlling media where maximum corrosion and chemical resistance is crucial for long-lasting and safe operation.
Advantages of plastic valves​
Plastic valves offer numerous advantages over conventional valves made of metal or other materials:
Corrosion resistance: Excellent protection against rust and wear.
Chemical resistance: Ideal for use with aggressive chemicals.
High resistance: Particularly resistant to abrasive media.
Lightweight construction: Easier to install and handle thanks to its lower weight.
Media resistance and durability
Plastic valves are characterized by their exceptional resistance to a wide range of media types, including:
Liquid media: e.g. hydrochloric acids, aggressive cleaning agents, chlorine, alcohols.
Gaseous media: e.g. chlorine gas, ammonia, sulfur dioxide, nitrogen oxides.
Aggressive media: e.g. hydrochloric acid, sulfuric acid, various hydroxides.
These properties make them ideal for demanding industrial environments.
Versatile applications
​Plastic valves offer versatile applications in various industries. Whether in the chemical industry, food and beverage production, or water treatment, these valves offer a reliable solution for precise process control. Their versatility and robustness make them a smart choice for numerous industrial applications.
Housing materials for plastic valves​
Plastic valves are available in various housing materials, each offering specific advantages for different applications:
PVC (polyvinyl chloride): A widely used plastic known for its excellent resistance to chemicals and corrosion. PVC valves are particularly suitable for use in aggressive environments.
PTFE (polytetrafluoroethylene): A high-performance plastic known for its excellent chemical resistance and low friction. PTFE valves offer exceptional performance and are ideal for applications with high corrosion and chemical resistance requirements.
PVDF (polyvinylidene fluoride): A thermoplastic fluoropolymer characterized by excellent resistance to aggressive chemicals and high temperatures. PVDF valves are highly durable and suitable for demanding industrial environments.
PP (Polypropylene): A versatile plastic known for its high chemical resistance and strength. PP valves are lightweight, robust, and offer excellent resistance to various chemicals, making them a cost-effective solution for numerous applications.
Connection types
Various connection types are available for the installation of plastic valves:
Adhesive connectors: Enable easy and quick connection of plastic pipes.
Welded sockets: Provide a durable and tight connection suitable for demanding applications.
Threaded sleeve: Allows flexible and easy assembly and disassembly.
Types of operation
​Plastic valves are available in different actuation types to meet different requirements:
Directly controlled
The solenoid armature closes the valve seat directly. Advantage: It operates from 0 bar and has fast switching times.
Ideal for smaller nominal diameters.
Servo-controlled
A small magnet controls the medium pressure, which opens the main seal. Advantage: Controls large flow rates. Requires a minimum pressure difference.


104
directly controlled with separating membrane
Design 2/2-way
Actuation type direct controlled
Nominal width 1.0 mm - 2.5 mm
Pressure range 0.00 - 6.0 bar
KV value 0.5 - 2.8 l/min
Housing material PVC, PTFE
Temperature medium see pressure/temperature diagram
Connection G1/8

110
directly controlled with separating membrane
Design 2/2-way
Actuation type direct controlled
Nominal diameter 2.0 mm - 6.0 mm
Pressure range 0.00 - 1.0 bar
KV value 1.8 - 8.2 l/min
Housing material PVC, PTFE, PVDF
Connection threaded socket G1/4, adhesive socket d16, welding socket d16

111
directly controlled with
Separation membrane,
liquid dampened
Design 2/2-way
Actuation type direct controlled
Nominal diameter 2.0 mm - 6.0 mm
Pressure range 0.00 - 6.0 bar
KV value 2.1 - 9.5 l/min
Housing material PVC, PTFE,
Connection threaded socket G1/4, adhesive socket d16, welding socket d16

136
directly controlled with PTFE bellows
Design 2/2-way
Actuation type direct controlled
Nominal diameter 15.0 mm - 50.0 mm
Pressure range 0.00 - 0.5 bar
KV value 3.2 - 38.0 m³/h
Housing material PVC, PP
Connection adhesive socket, welding socket

148
directly controlled with PTFE bellows
Design 2/2-way
Actuation type direct controlled
Nominal diameter 2.0 mm - 8.0 mm
Pressure range 0.00 - 6.0 bar
KV value 1.8 - 9.0 l/min
Housing material PVC, PTFE
Pressure/temperature diagram
Connection threaded socket G1/4, adhesive socket d12

150
directly controlled with PTFE bellows
Design 2/2-way
Actuation type direct controlled
Nominal diameter 10.0 mm-20.0 mm
Pressure range 0.00 - 2.0 bar
KV value 20.7 - 53.0 l/min
Housing material PVC, PP, PTFE
Connection adhesive socket,
welding socket, threaded socket

160
servo-controlled with separating membrane
Design 2/2-way
Actuation type servo-controlled
Nominal diameter 15.0 mm - 50.0 mm
Pressure range 0.3 - 6.0 bar
KV value 3.1 - 29.6 m³/h
Housing material PVC, PP, PTFE
Connection adhesive socket, welding socket, threaded socket

152
directly controlled with PTFE bellows
FAQs (Frequently Asked Questions)​
Yes, plastic valves are suitable for a wide range of media, including aggressive chemicals.​
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Are plastic valves as durable as metal valves?​
Yes, plastic valves are extremely durable and offer excellent resistance to many different media.​
Direct-acting and servo-actuated plastic valves are available to meet the different requirements of different applications.​
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What types of actuation are available for plastic valves?
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Are plastic valves suitable for use in aggressive environments?
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Which housing materials are available for plastic valves?
Plastic valves are available in PVC, PTFE, PVDF and PP to meet the needs of different applications.
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How can plastic valves improve the efficiency of industrial processes?
Plastic valves improve the efficiency of industrial processes through precise regulation and control of various media, exceptional durability, resistance and low-maintenance design.
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