5 types of gas valves for industrial, high purity, and ultra-high purity line and cylinder applications.
Tied diaphragm line valve
Soft seat 4mm orifice manual line valve.
UHP Springless diaphragm line valve
Flow capacity 0.2 springless diaphragm.
Standard Valves
The C200 series are standard valves for industrial and medical applications for different inert, inert mixtures and flammable gas service.
Tied diaphragm seal type
Cylinder Valve with Packed Needle Stem Design for High Purity Gas Applications
Ultra high purity tied diaphragm seal type
D304 valve for UHP, corrosive, reactive and toxic gases from Rotarex Puretec is designed for keeping the highest level of purity of the gas. No particles are generated in the gas wetted part thanks to the tied diaphragm technology. It is also available with the new Open/close indicator from Rotarex Puretec
Tied diaphragm line valve
Soft seat 4mm orifice oleo-pneumatic line valve.
Standard Valves
The C040/041 are high pressure brass cylinder valve for carbon dioxide and mixtures.
Tied diaphragm seal type
Pneumatic cylinder Valve with Packed Needle Stem Design for High Purity Gas Applications.
Ultra high purity tied diaphragm seal type
D385S valve with pneumatic actuator is designed for keeping the highest level of purity of the gas. Its tied diaphragm technology allows to avoid any particle generation. The D385S is used for UHP, corrosive, reactive and toxic gases, common in the electronic and semicondutor industry.
Tied diaphragm line valve
Soft knife edge seat 4mm orifice pneumatic line valve.
UHP Springless diaphragm line valve
Flow capacity 0.5 springless diaphragm.
RPV Valves
The Residual Pressure Device prevents ingress of contaminants like moisture and particles in the cylinder and ensures a longer life time of the cylinder.
Ultra high purity tied diaphragm seal type
The D386S ensures the highest levels of purity and safety for applications using fluorine gas mixtures, such as cleaning non-plasma deposition chambers and diffusion furnaces for silicon-based films. Designed with the challenges of fluorine-nitrogen mixtures in mind, this UHP cylinder valve incorporates specialized features to enhance operational safety and maintain the purity of F₂/N₂ mixtures, supporting contamination-free manufacturing
Tied diaphragm line valve
Soft seat 6mm orifice manual line valve.
valves for corrosive gases
Stainless steel high‑pressure valve with sturdy 2‑piece stem and soft seat for clean, reliable corrosive‑gas control.
Ultra high purity tied diaphragm seal type
D354 valve with oleo-pneumatic actuator is designed for keeping the highest level of gas purity. No particle are generated thanks to its tight diaphragm technology. Commonly used for ultra-high-purity, corrosive, reactive and toxic gases, its oleo-pneumatic actuator increase the seat closure force.
Tied diaphragm line valve
Soft seat 6mm orifice oleo-pneumatic line valve.
UHP Springless diaphragm line valve
Flow capacity 1.75 springless diaphragm.
Ultra high purity tied diaphragm seal type
D340S valve for Ultra-High Purity gases from Rotarex Puretec is designed for keeping the highest level of purity of the gas. The dual port technology ease withdrawal of liquefied gas by pressurizing through vapour port. No particles are generated in the gas wetted part thanks to the tied diaphragm technology.
High-Performance bellows Valves for cryogenic gases and liquids
Low or high pressure bellows valve. Operating range -40°C to +120°C ambient.
UHP Springless diaphragm line valve
Flow capacity 3.5 springless diaphragm.
Ultra high purity tied diaphragm seal type
D306 cylinder valve for Ultra High Purity highly oxidizing and reactive gases is designed for keeping the highest level of gas purity, thanks to its tied diaphragm technology. The Rotarex Puretec D306 UHP cylinder valve is also available with the new Open/close indicator.
High-Performance bellows Valves for cryogenic gases and liquids
High pressure bellows valve. Operating range -40°C to +120°C ambient.
Ultra high purity tied diaphragm seal type
The D356 UHP cylinder valve with oleo-pneumatic actuator is designed for Ultra High Purity highly oxidizing and reactive gases, ensuring the highest level of gas purity thanks to its tied diaphragm technology. Its oleo-pneumatic actuator increases the seat closure force for maximum safety.
High-Performance bellows Valves for cryogenic gases and liquids
Low to high pressure bellows valve. Operating range -196°C to +250°C cryogenic.
Ultra high purity tied diaphragm seal type
D339S valve is designed for keeping the highest level of purity of UHP, corrosive, reactive and toxic gases. No particles are generated in the gas wetted part thanks to the tied diaphragm technology. The D339S is also available with the new Open/close indicator from Rotarex Puretec.
High-Performance bellows Valves for cryogenic gases and liquids
High pressure bellows valve. Operating range -196°C to +250°C cryogenic.
Ultra high purity tied diaphragm seal type
D389S UHP cylinder is designed for keeping the highest level of purity of the gas. The seat closure force is increased thanks to its oleo-pneumatic actuator. The tight diaphragm technology allows no particle are generation in the gas wetted parts.
High-Performance bellows Valves for cryogenic gases and liquids
High pressure bellows valve. Operating range -40°C to +120°C ambient.
Ultra high purity tied diaphragm seal type
D349 valve for UHP gases is designed for keeping the highest level of purity of the gas. Easy withdrawal of liquefied gas thanks to the dual port technology. The D349 allows a high flow value at high pressure with its 6mm orifice size.
High-Performance bellows Valves for cryogenic gases and liquids
Low pressure bellows valve. Operating range -270°C to +80°C cryogenic.
Ultra high purity tied diaphragm seal type
D337 low pressure manual cylinder valve for Ultra High Purity, corrosive, reactive and toxic gases is designed for keeping the highest level of purity of the gas, thanks to the tied diaphragm technology. The D337 valve is also available with the Rotarex puretec Open/close indicator for an improved safety.
High-Performance Check Valve for cryogenic gases and liquids
Low to high pressure check valves. Operating range -196°C to +250°C cryogenic.
Ultra high purity tied diaphragm seal type
D387 low pressure pneumatic cylinder valve for UHP, corrosive, reactive and toxic gases is designed with the tied-diaphragm in order to keep the highest level of purity of the gas. Its 8mm orifice size allows a high CV value.
Ultra high purity tied diaphragm seal type
D342 low pressure valve for Ultra-High Purity corrosive, reactive and toxic gases is designed for keeping the highest level of purity of the gas, thanks to the tied diaphragm technology. The D342 dual ported valve has two outlets marked “LIQUID” to withdraw liquid phase and “VAPOR” for gas phase.
HP & UHP Gas Valves
Gas check valve for oxidizing inert flammable and hydrocarbon gases. G 1/4 inch connections max working pressure 420 bar.
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