Rotary Valves
A rotary valve is a rotary-motion HVAC control valve that opens, closes or mixes two inlets by turning its stem 90°; it operates automatically with a rotary valve actuator.
It is used for heating circuit mixing, boiler return temperature control and zone isolation. The product range includes PN40 2 and 3-way ball control valves (1/2″–2″), DN25–DN150 threaded and flanged 3-way rotary valves and linkage kits.
Main Applications
- Heating circuit mixing groups
- Boiler return temperature boosting
- Underfloor heating mixing valves
- Zone and circuit isolation
- Heat exchanger circuit control
- Solar circuit diverting
Technical Data
| Types | 2 and 3-way ball control valve; 3-way rotary mixing valve (product range) |
|---|---|
| Ball valve sizes | 1/2″ – 2″ (DN15 – DN50) (product range) |
| Ball valve pressure | PN40 (product names) |
| Rotary valve sizes | DN20 – DN150 (product range) |
| Rotary valve pressure | PN6 / PN10 (depending on model, product names) |
| Drive | Rotary valve actuator; with linkage kit |
| Kvs | Depending on model |
| Fluid and temperature | Heating-cooling water; depending on model |
Material Options
| Part | 3-way ball control valve | 3-way rotary (mixing) valve |
|---|---|---|
| Pressure class | PN40 (product name) | PN6 – PN10 (depending on model) |
| Connection | Threaded | Threaded or flanged |
| Size | 1/2″ – 2″ | DN20 – DN150 |
| Typical use | Compact control circuit | Boiler and heating mixing |
Which material? A suitable linkage kit must be used between rotary valve and actuator. PN values come from the product names; Kvs and temperature values are confirmed per model.
Advantages
Mixing Control
- 3-way type
Low Leakage
- Ball type (depending on model)
Wide Size Range
- From 1/2″ to DN150
Automation by Actuator
- Rotary actuator fit
Construction and Design Features
- Cast or brass body
- Ball or rotary sector
- Actuator mounting
- Threaded or flanged ends
Send the flow, connection type, 2 / 3-way need and actuator; we will confirm a suitable rotary valve and linkage kit.
How to Choose?
- Size and connectionDetermine threaded or flanged size.
- Pressure classChoose PN for system pressure.
- Flow and temperatureState flow and pressure drop so Kvs can be sized.
- DriveMatch the rotary actuator and linkage kit.
Complementary Products
Why ORFA?
Other HVAC Valves
Balancing Valves
Balancing valves balance heating and cooling circuits by ensuring each branch receives its design flow.
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Diaphragm Safety Valves
Diaphragm safety valves open when the set pressure is exceeded and protect closed heating systems against overpressure.
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Linear Valves
Linear valves are two-way or three-way globe type HVAC control valves used together with an actuator.
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Automatic Air Vents
Automatic air vents release air trapped in heating and cooling installations automatically by means of a float mechanism.
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Radiator Valves
Radiator valves are fitted to radiator supply and return connections to shut off or adjust the heating water.
Details →Get a quote for your project
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