Injection and selection rotary shear valves for gas chromatography
Pneumatically or electrically driven
Rotary shear valves for gas chromatography with pneumatic or electric drive offer the highest precision and reliability. They are available in various designs for sample injection or selection and feature up to 16 ports. Thanks to high-quality materials and precise workmanship, they ensure extremely low leakage values. The valves are designed for temperature ranges up to 225 °C and are ideal for demanding laboratory and analytical applications.
Product overview
Rotary shear valves for gas chromatography with pneumatic drive
- Max. temperature: up to 225°C
- Extension rod: 2" | 3" | 4" | 6"
- Ports: 4 | 6 | 8 | 10 | 12 | 14
- Channel diam.: 0.4 mm | 0.75 mm
Rotary shear valves for gas chromatography with electric drive
- Max. temperature: up to 225°C
- Extension rod: 2" | 3" | 4" | 6"
- Ports: 3 | 4 | 6 | 8 | 10 | 12 | 14 | 16
- Channel diam.: 0.4 mm | 0.75 mm
- Communication interface: RS-232 | RS-485 (others upon request)
![[Translate to Englisch:] GC-Drehventilkopf](https://images.pumps-valves.eu/fileadmin/_processed_/2/1/csm_gc-valve-head-2-14_9894dc7ca7.jpg)
Applications
Typical applications include laboratory gas chromatography instruments, VOC gas analyzers, and multi-valve and multi-column applications in the petrochemical industry. They are often used for precise gas flow control, sample introduction, and switching between different carrier gases or detectors. Their high temperature resistance and minimal leakage make them particularly suitable for applications requiring the highest accuracy and reproducibility.