


| Parameter | Value |
|---|---|
| EAN () | 5702421542736 |
| Type () | AVQM |
| Volume () | 9.829 Liter |
| Function () | Flow controller with int. control valve |
| Net weight () | 3.06 Kilogram |
| Valve size () | DN 25 |
| Application () | District Heating |
| Description () | AVQM PN25 25/8 /0,2 thread flow/ret |
| Stroke [mm] () | 7 mm |
| Flow control () | Yes |
| Gross weight () | 3.07 Kilogram |
| Diameter [mm] () | 25 mm |
| Product group () | Pressure flow controllers |
| Stem position () | Normally open |
| Media pH [Max] () | 10 |
| Media pH [Min] () | 7 |
| Pressure class () | PN 25 |
| Connection size () | G 1 1/4 A |
| Flow limitation () | Yes |
| Number of ports () | 2 |
| Connection types () | External Thread |
| Function VSP - P () | No |
| Function VSP - Q () | No |
| Function VSP - T () | No |
| Mounting version () | Free |
| Cavitation factor () | 0.6 |
| Flow rate [m³/h] () | 4.5 m³/h |
| Permissible media () | District heating/cooling circulation water |
| EU RoHS compliance () | Yes with exemptions |
| Kvs values [m³/h] () | 8 m³/h |
| Medium alternative () | Glycolic water up to 30% |
| PN alternative VSP () | 0 |
| UK RoHS compliance () | Out of scope |
| Pressure controller () | No |
| Sealing CV material () | Metal |
| Sealing DP material () | EPDM |
| Valve body material () | Red bronze CuSn5ZnPb (Rg5) |
| Valve seat material () | Stainless steel, mat. No. 1.4571 |
| Leakage rate [% Kvs] () | 0.02 |
| Cavitation factor 25% () | 0.64 |
| Cavitation factor 50% () | 0.57 |
| Cavitation factor 75% () | 0.55 |
| China RoHS compliance () | Out of scope |
| Cavitation factor 100% () | 0.38 |
| Pressure nominal [bar] () | 25 bar |
| Valve cone CV material () | Dezincing free brass CuZn36Pb2As |
| Valve cone DP material () | Dezincing free brass CuZn36Pb2As |
| Flow rate [m³/h] [Max] () | 4.5 m³/h |
| Flow rate [m³/h] [Min] () | 0.2 m³/h |
| Actuator diaphragm material () | EPDM |
| Media temperature [°C] [Max] () | 150 °C |
| Media temperature [°C] [Min] () | 2 °C |
| REACH Candidate List substances () | Lead (CAS no. 7439-92-1) |
| In scope of WEEE and contain batteries () | No |
| Differential pressure range [bar] [Max] () | 20 bar |
| Flow restrictor diff.pressure - dpb [bar] () | 0.2 bar |
| Select if the Shock valve should be with a Fixed pressure or Adjustablepressure () | None |
Technical specifications and performance data
Installation and operation guide