High-purity silicone diaphragm valves for food, medical and semiconductor applications, with excellent resistance to extreme temperatures.
High-purity silicone diaphragms are used where cleanliness and temperature resistance matter more than chemical aggression. Silicone also stays flexible at low temperature, which keeps a valve sealing through cold-start and sterilisation cycles alike.

Key Features
- Temperature: −40 to 230 °C (special compounds higher)
- High cleanliness
- Applications: food, medical, semiconductor
Typical Applications
- Food and beverage processing lines
- Medical and pharmaceutical fluid handling
- Semiconductor and high-purity water systems
- Steam sterilisation and CIP/SIP cycles
- Low-temperature service where other elastomers stiffen
Custom Options & Ordering
- Material: high-purity silicone (VMQ)
- Temperature: −40 to 230 °C, special compounds higher
- High cleanliness and low extractables
- Custom valve-body matched profiles
Request a Quote
Tell us your medium, working temperature, pressure and dimensions and we will recommend the compound and geometry for your duty. Reach our engineering team at sales@aobo.biz or +86-573-87855272, or use our contact page.