Rotary Valve Selection Guide
Granular, powder and quick-clean models, working pressure ≤ 0.2 to ≤ 3.5 bar.
Overview
- Working pressure
- ≤ 0.2 / ≤ 1.5 / ≤ 3.5 bar
- Size range
- 4" ~ 24" (by model)
- Media temperature
- -10 ~ 120 °C
- Flange standard
- PN10, ANSI 150#; others on request
- Scope
- Design, supply, installation and commissioning
Rotary valves feed pneumatic conveying systems and meter material. Choose first between pellets and powders, then the series by working pressure, and finally confirm size, flange and material. We provide design, supply, installation and commissioning.
Model comparison
| Model | Material | Working pressure | Size range | Key features |
|---|---|---|---|---|
| GRH | Pellets and regrind | ≤ 3.5 bar | 4"–24" | Anti-shear design for high-pressure conveying |
| GRM | Pellets and regrind | ≤ 1.5 bar | 4"–24" | Anti-shear, energy-efficient airlock design for conveying and metering |
| GRL | Pellets and regrind | ≤ 0.2 bar | 4"–12" | Gravity discharge for metering |
| RVH | Powders | ≤ 3.5 bar | 4"–20" | Polished interior, housing vent for better pocket filling |
| PBH | Powders | ≤ 3.5 bar | 8"–24" | Blow-through design, embedded bearings, tight clearances |
| PRM | Powders | ≤ 1.5 bar | 4"–24" | Large, steep ports and polished interior |
| GQM rail type | Pellets and powders | ≤ 1.5 bar | 4"–24" | Quick-release design for easy changeover and cleaning |
| GQM hinged type | Pellets and powders | ≤ 1.5 bar | 4"–8" | Hinged quick-release cover for easy changeover and cleaning |
Flanges PN10, ANSI 150#; media temperature -10 ~ 120 °C. Material CF8 / aluminium, CF8M on request; PRM in CF8, other materials on request. Custom sizes, flanges and materials are available on request.
How to choose
Material
For pellets and regrind, start with GRH, GRM or GRL; for powders, with RVH, PBH or PRM.
Pressure
Use the ≤ 3.5 bar series for high-pressure conveying and the ≤ 1.5 bar series for medium pressure; GRL suits gravity discharge and metering.
Duty
For frequent changeover and cleaning, choose GQM. For high temperatures, add RE electric heat tracing or an RS steam jacket.
Rotor
Eight standard rotor types are available and can be adapted to the material, e.g. Stellite-hardened vane tips.
FAQ
Can one rotary valve handle both pellets and powders?
Our range is divided into granular and powder types. The GQM quick-clean valve handles pellets and powders; for the others, use the table above.
What do you need for a quotation?
Tell us the material, working pressure, capacity and site interface requirements.
Rotary valve models
GRHHigh-Pressure Granular Rotary Valve
≤ 3.5 bar, anti-shear design.
GRMMedium-Pressure Granular Rotary Airlock Valve
≤ 1.5 bar, conveying and metering.
GRLGravity-Discharge Granular Rotary Valve
≤ 0.2 bar, metering.
RVHHigh-Pressure Powder Rotary Valve
≤ 3.5 bar, polished interior.
PBHBlow-Through Powder Rotary Valve
≤ 3.5 bar, embedded bearings.
PRMMedium-Pressure Powder Rotary Valve
≤ 1.5 bar, large ports.
GQMGranular Quick-Clean Rotary Valve (Rail Type)
4"–24", easy changeover and cleaning.
GQMGranular Quick-Clean Rotary Valve (Hinged Type)
4"–8", hinged quick release.
Planning a new line or an upgrade?
Tell us your material, capacity and distance – our engineers will reply with a conveying concept and quotation.