Zone control

Introduction

Zone control graphic

Typical for applications are: on/off control with fail-safe function; simple operation but robust and reliable; simple cabling and fast installation; PN 16 pressure class; threaded valves; electro-motoric actuator; variety of valve construction types and valve connection types.

The proposed combinations vary in: valve sizes; pipe connections.

Standard combination with internally threaded valves

Standard combination with internally threaded valves

PN 16 threaded valves; kVS 2 … 5 m³/h; 2-port VVI46, 3-port VXI46 internal threads to ISO 7-1; normally close (NC) combination..

Links to more information:

- 2-port valve VVI46
- 3-port valve VXI46
- Displayed combination: VVI46  SFA
- Other suitable actuators: STA
- For normally open (NO) operations (actuator de-energized valve open) use SFP actuator

Combination with externally threaded valves

Combination with externally threaded valves

PN16 threaded valves; kVS 0.25 ... (2.5) 4 m³/h; 2-port VVP47, 3-port VXP47 and 3-port with bypass VMP47 valves; external treads ISO 228-1 (flat face) or BS 84 (compression fittings); normally closed (NC) combination.

Links to more information:

- 2-port valve VVP47
- 3-port valve VXP47
- 3-port valve with bypass VMP47
- Displayed combination with 3-port valve: V..P47 SFP
- Other suitable actuators: STP
- For normally open (NO) operations (actuator de-energized valve open) use SFA  actuator.