Typical for applications are: low temperature span and large volumetric flows; requirement for easy installation, stable control, quiet and service-free operation; PN 16 or PN 10, 2-port threaded valves; variety of connection cables in length and quality.

The proposed combinations vary in: control performance, k_VS range, PN class, valve construction, type of actuator, length/quality connection cables.

PN16 threaded valves with linear characteristic and 2.5 mm stroke; k_VS 0.25 ... (2.5) 4 m³/h; 2-port VVP47, 3-port VXP47 and 3-port with bypass VMP47 ; external treads ISO 228-1 (flat face) or BS 84 (compression fittings) good control and high close-off pressure.

Link to more information:

- 2-port valve: VVP47
- 3-port valve: VXP47
- 3-port valve with bypass: VMP47
- Displayed combination with 2-port valve: VVP47  STP
- Other suitable actuators: SSP  STP63

PN10 straight-through valves for kVS up to 2.6 m³/h; integrated pre-adjustment of k_V-values; inlet internally threaded RP to ISO 7-1; outlet externally threaded R to ISO 7-1

Link to more information:

- Displayed combination: VD1..CLC  STA
- Other suitable actuators: SSA  STA63

PN10 2-port pre-adjustable combi valves DN 10 to DN 15; straight-through VPD1.. and angle VPE1.. to DIN norm; volumetric flow 25…483 l/h and operating range up to 200 kPa; medium temperature: 1...90 °C

Link to more information:

- 2-port valves: V.D1..
- Displayed combination: VPD STA
- Other suitable actuators: SSA STA63

PN25 combi valves with linear characteristic, operating range up to 400 kPa and 2.5 mm stroke (DN 20 with 5 mm); types with flow range 30...1330 l/h; internally and externally threaded connections, with or without P/T plugs.

Links to more information:

- Displayed combination: VPP46  SSA
- Other suitable combi valves: VPI46
- Other suitable actuators: STA

PN25 combi valves, operating range up to 400 kPa and 5 mm stroke; types with flow range (75) 500 ... 3000 l/h; internally threaded connections to ISO 7-1precise pre-adjustment and options with P/T plugs; excellent control performance; high close-off pressure. The electro-motoric premium actuators, 3P/0-10 V with plug-in connection cables are available in different lengths and also in halogen-free versions.

Link to more information:

- Displayed combination: VPI45 SSD
- For small volumetric flows see also alternative VPD combi-valve