
Valve Types Overview
Gate Valve





- Standard: For general vacuum such as industrial coating. Size ISO63–320 mm. Most economical.
- Semi: For ultra-clean environments such as semiconductor. Size KF25–320 mm.
- Harsh: Robust with no moving components, for corrosive or extreme temperature. Lockout-tagout optional.
- Aluminum: Better vacuum than stainless steel; transparent to X-ray.
- Mini: Quick action, economical, small footprint; for sample transfer. Size KF25–KF50.
Segment | Code | Description |
---|---|---|
Series | GV / GVA | Gate Valve (GVA = Aluminum series) |
Actuation | M / P | M = Manual, P = Pneumatic |
Size | ISO XX / KF XX / CF XX | Port size and flange standard |
Grade / Model | S / H / (blank) | S = Semi, H = Harsh, blank = Standard |
Example: GVP-ISO100-S → Pneumatic GV, ISO100, Semi grade |
Poppet Valve






Available in angle, inline, Z-style; CF, KF, ISO flanges; sizes 16–630 mm. Bellows-sealed.
- Standard: General vacuum; sizes 16–630 mm.
- Low Particle: Bellows encapsulated from process gases; for upstream (e.g., load-lock).
- Gemini: Higher closing force when chamber also sees high pressure.
- Aluminum Flapper: Aluminum body; integrated position indicator & solenoid; 6 M cycle life.
- Toggle: Quick flip with detents; locking optional.
- All-Metal: For UHV up to 1×10−10 torr or extreme temperature.
Segment | Code | Description |
---|---|---|
Series | AV / AFV / TV | Poppet / Aluminum Flapper / Toggle |
Actuation | M / P | M = Manual, P = Pneumatic |
Size | KF XX / ISO XX / CF XX | Port size and flange standard |
Model | FO / G / M / (blank) | FO = Low Particle, G = Gemini, M = All-Metal, blank = Standard |
Example: AVP-KF50-FO → Pneumatic AV, KF50, Low-Particle |
Ball Valve



- Standard: Casting body, PTFE sealed. Vacuum to 1×10−6 torr; pressure to 200 psi. High-temperature options available.
- High Temp Machined: Machined body, TFM sealed. Vacuum to 1×10−9 torr; for high pressure/temperature, cryogenics, corrosives.
- Custom: Made to print.
Butterfly Valve



- Standard: Flow and pressure control. Vacuum to 1×10−8 torr. Self-wiping disk.
- Chevron Vane: Low profile, high conductance, optimum pressure control. Size 4″–35″.
- Throttling: Throttling pressure control; plug-in compatible to VAT.
Please send inquiry to sales@vacproducts.com
Please call 510-498-8518 for product information.