C215QP-B - Belimo 2-way PI Zone Valve, DN 15

C215QP-B - 2-way PI Zone Valve, DN 15

• DN 15, 2-way, Rp 1/2", internal thread
• Vnom 210 l/h
• Housing brass body nickel-plated
• Closing element stainless steel
• Stem stainless steel
• Stem seal O-ring EPDM, valve seat PTFE
• Leakage rate A, leak-proof (EN 12266-1)
• Medium temperature +2…+90 °C
• Equal-percentage characteristic curve (VDI/VDE 2178)

Principle of operation:

The ball valve is adjusted by a rotary actuator. The actuator is controlled by a commercially available modulating or 3-point control system and moves the ball of the valve – the throttling device – to the position dictated by the positioning signal. Open the characterised control valve counterclockwise and close it clockwise.

Flow characteristic:

Equal percentage flow control is ensured by the special design of the ball. Constant flow volume With a differential pressure of 16…350 kPa, a constant flow volume is achieved thanks to the integrated pressure regulationg valve. Independent of the differential pressure through the valve, a valve authority of 1 is achieved. Even with pressure variatons and in the partial load range, the flow rate remains constant with each respective opening position (angle of rotation) and ensures a steady control.

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Flow limitation:

Instead of the electric actuator, the PIQCV-valve can also be operated with a flow limiter (see accessories). The flow limiter ensures that the heat exchanger is continuously supplied with a manually fixed amount of water.

• Media Cold and warm water, water with glycol up to max. 50% vol.
• Medium temperature 2...90°C
• Pressure value 16...350 kPa
• Permissible pressure ps 1600 kPa
• Closing pressure ∆ps 700 kPa
• Flow characteristic equal percentage (VDI/VDE 2178), optimised in the opening range
• Pressure stability With a pressure value of 16...350 kPa: ±10%
• Leakage rate Leakage rate A, tight (EN 12266-1)
• Flow setting see Installation instructions
• Pipe connectors Internal thread according to ISO 7-1
• Angle of rotation 90° (Operating range 15...90°)
• Installation position Upright to horizontal (in relation to the stem)
• Maintenance Maintenance-free

Materials:

• Housing Brass body
• Closing element Stainless steel
• Stem Stainless steel
• Stem seal O-ring EPDM
• Valve seat PTFE, O-ring EPDM
• Diaphragm EPDM

Terms:

Abbreviations Vnom = nominal flow with valve completely opened
Vmax = maximum flow set by the angle of rotation limitation on the actuator