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Efficient pump operation requires reliable flow regulation, reverse-flow prevention and equipment isolation. As a Triple Duty Valve Manufacturer in Canada, Valves Only Canada supplies triple duty valves for chilled-water circuits, heating systems and industrial pumping applications.
A triple duty valve combines three functions in one assembly: flow balancing, non-return operation and shut-off. Installed in pump discharge piping, it regulates system flow, helps prevent reverse flow when the pump stops and allows pump isolation for maintenance. Valve selection considers pump capacity, flow rate, operating pressure, temperature, body material and end connection requirements.
Triple Duty Valve Features
- Three integrated functions: flow balancing, check and shut-off.
- Flow regulation in centrifugal pump discharge piping.
- Reverse-flow prevention when the pump stops.
- Manual shut-off for pump isolation and maintenance.
- Compact construction that reduces the need for separate balancing, check and isolation valves.
- Adjustable balancing mechanism for system flow regulation.
- Flanged connections for compatibility with the specified piping system.
- Body and internal components selected for water and compatible heating or cooling fluids.
- Multiple size and pressure-rating options for commercial and industrial pumping systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Valve Type | Triple Duty Valve |
| Design | Combination Balancing, Check and Shut-Off Valve |
| Nominal Size | 2″–24″; |
| Pressure Rating | ASME Class 125 / 150 |
| Body Materials | Cast Iron ASTM A126 Class B; Ductile Iron ASTM A536 Grade 65-45-12; Cast Steel ASTM A216 Grade WCB |
| Connection Type | Flanged |
| Operating Medium | Water and compatible heating or cooling fluids |
| Balancing Function | Adjustable flow regulation |
| Check Function | Automatic non-return operation |
| Shut-Off Function | Manual pump and equipment isolation |
Standards and Testing
Triple duty valves must meet the applicable design, pressure-rating, material and connection requirements for the selected product. ASME B16.5 specifies dimensions and pressure-temperature ratings for pipe flanges and flanged fittings within its scope. ASME B16.34 applies to valves within its defined scope and should only be listed when applicable to the specific valve construction.
Industries Served
- Heating and Hot Water Circulation
- Power Generation
- Industrial Pumping Systems
- Water Treatment Facilities