Description
The Belimo PI Zone Valve, 2-way with internal thread, is engineered for closed cold and warm water systems. It delivers precise control for air handling and heating systems. Ideal for tradespeople and engineering companies, this valve ensures optimal performance and reliability.
- Functional Data:
- Fluid: Cold and warm water with glycol up to max. 50% vol.
- Fluid Temperature: -20...120°C [-4.0...248°F]
- Differential Pressure: 16...350 kPa
- Close-off Pressure: ∆ps 1400 kPa
- Flow Characteristic: Equal percentage (VDI/VDE 2173), optimized in the opening range
- Pressure Stability: ±5% (35...350 kPa), ±10% (16...35 kPa)
- Leakage Rate: Air-bubble tight, leakage rate A (EN 12266-1)
- Angle of Rotation: 90° (Operating range 15...90°)
- Pipe Connection: Internal thread according to ISO 7-1
- Installation Orientation: Upright to horizontal (in relation to the stem)
- Servicing: Maintenance-free
- Material Composition:
- Valve Body: Brass
- Closing Element: Stainless steel
- Spindle: Stainless steel
- Spindle Seal: EPDM O-ring
- Seat: PTFE, O-ring EPDM
- Diaphragm: EPDM
Operating Mode: The ball valve is adjusted by a rotary actuator, controlled by a modulating or 3-point control system.
Flow Characteristic: Equal percentage flow control is ensured by the special design of the ball.
Constant Flow Volume: Maintains a constant flow volume with a differential pressure of 16…350 kPa.
Measuring Ports (P/T Ports): These are included in C2..QPT-.. types for easy pressure differential measurement.
Installation Orientation: Permissible upright to horizontal installation. Not suitable for hanging installation.
Servicing: Maintenance-free ball valves and rotary actuators. Before any service work, ensure the rotary actuator is isolated from the power supply.
- Mechanical Accessories:
- Spindle Extension: CQ ZCQ-E
- Flow Limiter: PIQCV ZCQ-FL
- Pipe Connector: Available for DN 15, DN 20, and DN 25 with respective internal threads.
Why You Should Buy:
- Precision Control: Optimized for modulating control in HVAC systems.
- Durability: Made with high-quality materials like brass and stainless steel for long-lasting performance.
- Easy Maintenance: Designed to be maintenance-free, reducing downtime and service costs.
- Versatility: Suitable for a wide range of applications in heating and cooling systems.
For more information and to explore our range of Belimo products, visit our website at https://ecospares.co.uk/collections/belimo. If you need any assistance, please call us on 01772 284 626.
