Industrietechnik
ZMD - 2- and 3-way control valves DN15-40, kvs 0.25-25, 5.5 mm stroke
Externally threaded control valves intended for use in heating and cooling systems together with the RVAZ4… series of electromechanical actuators. A hand wheel for manual operation is delivered with the valve.
Articles
(22 st)-
ZMD215-0-25- Connection
- Internal G 1/2"" on union end
- Rangeability
- 50:1
- Nominal diameter
- DN15
- Stroke
- 5.5 mm
- Kvs
- 0.25 m³/h
- Max. diff. pressure
- 400 kPa
- Media temperature
- 2…110 °C
- Nipple
- DZR brass CW511L
- Cover lid
- DZR brass CW511L
- Valve Type
- 2-Way
-
ZMD215-0-4- Connection
- Internal G 1/2"" on union end
- Rangeability
- 50:1
- Nominal diameter
- DN15
- Stroke
- 5.5 mm
- Kvs
- 0.4 m³/h
- Max. diff. pressure
- 400 kPa
- Media temperature
- 2…110 °C
- Nipple
- DZR brass CW511L
- Cover lid
- DZR brass CW511L
- Valve Type
- 2-Way
-
ZMD215-0-6- Connection
- Internal G 1/2"" on union end
- Rangeability
- 50:1
- Nominal diameter
- DN15
- Stroke
- 5.5 mm
- Kvs
- 0.6 m³/h
- Max. diff. pressure
- 400 kPa
- Media temperature
- 2…110 °C
- Nipple
- DZR brass CW511L
- Cover lid
- DZR brass CW511L
- Valve Type
- 2-Way
-
ZMD215-1-0- Connection
- Internal G 1/2"" on union end
- Rangeability
- 50:1
- Nominal diameter
- DN15
- Stroke
- 5.5 mm
- Kvs
- 1 m³/h
- Max. diff. pressure
- 400 kPa
- Media temperature
- 2…110 °C
- Nipple
- DZR brass CW511L
- Cover lid
- DZR brass CW511L
- Valve Type
- 2-Way
-
ZMD215-1-6- Connection
- Internal G 1/2"" on union end
- Rangeability
- 50:1
- Nominal diameter
- DN15
- Stroke
- 5.5 mm
- Kvs
- 1.6 m³/h
- Max. diff. pressure
- 400 kPa
- Media temperature
- 2…110 °C
- Nipple
- DZR brass CW511L
- Cover lid
- DZR brass CW511L
- Valve Type
- 2-Way
-
ZMD215-2-5- Connection
- Internal G 1/2"" on union end
- Rangeability
- 50:1
- Nominal diameter
- DN15
- Stroke
- 5.5 mm
- Kvs
- 2.5 m³/h
- Max. diff. pressure
- 400 kPa
- Media temperature
- 2…110 °C
- Nipple
- DZR brass CW511L
- Cover lid
- DZR brass CW511L
- Valve Type
- 2-Way
-
ZMD215-4-0- Connection
- Internal G 1/2"" on union end
- Rangeability
- 50:1
- Nominal diameter
- DN15
- Stroke
- 5.5 mm
- Kvs
- 4 m³/h
- Max. diff. pressure
- 400 kPa
- Media temperature
- 2…110 °C
- Nipple
- DZR brass CW511L
- Cover lid
- DZR brass CW511L
- Valve Type
- 2-Way
-
ZMD220-6-3- Connection
- Internal G 3/4"" on union end
- Rangeability
- 50:1
- Nominal diameter
- DN20
- Stroke
- 5.5 mm
- Kvs
- 6.3 m³/h
- Max. diff. pressure
- 400 kPa
- Media temperature
- 2…110 °C
- Nipple
- DZR brass CW511L
- Cover lid
- DZR brass CW511L
- Valve Type
- 2-Way
-
ZMD225-10- Connection
- Internal G 1"" on union end
- Rangeability
- 50:1
- Nominal diameter
- DN25
- Stroke
- 5.5 mm
- Kvs
- 10 m³/h
- Max. diff. pressure
- 400 kPa
- Media temperature
- 2…110 °C
- Nipple
- Galvanized malleable cast iron
- Cover lid
- DZR brass CW511L
- Valve Type
- 2-Way
-
ZMD232-16- Connection
- Internal G 1 1/4"" on union end
- Rangeability
- 50:1
- Nominal diameter
- DN32
- Stroke
- 5.5 mm
- Kvs
- 16 m³/h
- Max. diff. pressure
- 400 kPa
- Media temperature
- 2…110 °C
- Nipple
- Galvanized malleable cast iron
- Cover lid
- DZR brass CW511L
- Valve Type
- 2-Way
-
ZMD240-25- Connection
- Internal G 1 1/2"" on union end
- Rangeability
- 50:1
- Nominal diameter
- DN40
- Stroke
- 5.5 mm
- Kvs
- 25 m³/h
- Max. diff. pressure
- 400 kPa
- Media temperature
- 2…110 °C
- Nipple
- Galvanized malleable cast iron
- Cover lid
- DZR brass CW511L
- Valve Type
- 2-Way
-
ZMD315-0-25- Connection
- Internal G 1/2"" on union end
- Rangeability
- 50:1
- Nominal diameter
- DN15
- Stroke
- 5.5 mm
- Kvs
- 0.25 m³/h
- Max. diff. pressure
- 400 kPa
- Media temperature
- 2…110 °C
- Nipple
- DZR brass CW511L
- Valve Type
- 3-Way
-
ZMD315-0-4- Connection
- Internal G 1/2"" on union end
- Rangeability
- 50:1
- Nominal diameter
- DN15
- Stroke
- 5.5 mm
- Kvs
- 0.4 m³/h
- Max. diff. pressure
- 400 kPa
- Media temperature
- 2…110 °C
- Nipple
- DZR brass CW511L
- Valve Type
- 3-Way
-
ZMD315-0-6- Connection
- Internal G 1/2"" on union end
- Rangeability
- 50:1
- Nominal diameter
- DN15
- Stroke
- 5.5 mm
- Kvs
- 0.6 m³/h
- Max. diff. pressure
- 400 kPa
- Media temperature
- 2…110 °C
- Nipple
- DZR brass CW511L
- Valve Type
- 3-Way
-
ZMD315-1-0- Connection
- Internal G 1/2"" on union end
- Rangeability
- 50:1
- Nominal diameter
- DN15
- Stroke
- 5.5 mm
- Kvs
- 1 m³/h
- Max. diff. pressure
- 400 kPa
- Media temperature
- 2…110 °C
- Nipple
- DZR brass CW511L
- Valve Type
- 3-Way
-
ZMD315-1-6- Connection
- Internal G 1/2"" on union end
- Rangeability
- 50:1
- Nominal diameter
- DN15
- Stroke
- 5.5 mm
- Kvs
- 1.6 m³/h
- Max. diff. pressure
- 400 kPa
- Media temperature
- 2…110 °C
- Nipple
- DZR brass CW511L
- Valve Type
- 3-Way
-
ZMD315-2-5- Connection
- Internal G 1/2"" on union end
- Rangeability
- 50:1
- Nominal diameter
- DN15
- Stroke
- 5.5 mm
- Kvs
- 2.5 m³/h
- Max. diff. pressure
- 400 kPa
- Media temperature
- 2…110 °C
- Nipple
- DZR brass CW511L
- Valve Type
- 3-Way
-
ZMD315-4-0- Connection
- Internal G 1/2"" on union end
- Rangeability
- 50:1
- Nominal diameter
- DN15
- Stroke
- 5.5 mm
- Kvs
- 4 m³/h
- Max. diff. pressure
- 400 kPa
- Media temperature
- 2…110 °C
- Nipple
- DZR brass CW511L
- Valve Type
- 3-Way
-
ZMD320-6-3- Connection
- Internal G 3/4"" on union end
- Rangeability
- 50:1
- Nominal diameter
- DN20
- Stroke
- 5.5 mm
- Kvs
- 6.3 m³/h
- Max. diff. pressure
- 400 kPa
- Media temperature
- 2…110 °C
- Nipple
- DZR brass CW511L
- Valve Type
- 3-Way
-
ZMD325-10- Connection
- Internal G 1"" on union end
- Rangeability
- 50:1
- Nominal diameter
- DN25
- Stroke
- 5.5 mm
- Kvs
- 10 m³/h
- Max. diff. pressure
- 400 kPa
- Media temperature
- 2…110 °C
- Nipple
- Galvanized malleable cast iron
- Valve Type
- 3-Way
-
ZMD332-16- Connection
- Internal G 1 1/4"" on union end
- Rangeability
- 50:1
- Nominal diameter
- DN32
- Stroke
- 5.5 mm
- Kvs
- 16 m³/h
- Max. diff. pressure
- 400 kPa
- Media temperature
- 2…110 °C
- Nipple
- Galvanized malleable cast iron
- Valve Type
- 3-Way
-
ZMD340-25- Connection
- Internal G 1 1/2"" on union end
- Rangeability
- 50:1
- Nominal diameter
- DN40
- Stroke
- 5.5 mm
- Kvs
- 25 m³/h
- Max. diff. pressure
- 400 kPa
- Media temperature
- 2…110 °C
- Nipple
- Galvanized malleable cast iron
- Valve Type
- 3-Way
Specifications
| Application | Heating, Cooling, Ventilation, Fan coil |
|---|---|
| Pressure rating | PN16 |
| Connection types | BSP externally threaded according to ISO 228/1 |
| Flow characteristics | Linear |
| Leakage | 0.0 % of Kvs () |
| Media | Hot water, Cold water, Glycol-mixed water (max. 50 % glycol) |
| Closing direction | When stem is pulled outward |
| Actuator connection | Standard for RVAZ4 actuators |
| Media temperature | 2…110 °C |
| Body | Brass CW614N |
| Seat | Brass CW614N |
| Plug | Brass CW614N |
| Stem | Stainless steel 1.4305 |
| Seat packing | EPDM |
| O-rings | EPDM |
| Stuffing box | Chromed brass CW614N |
| Nut | Galvanized malleable cast iron |
| Fitting seal | Novatec Premium 2, Nitrile bonded aramid fibre with graphite |
Software & documentation
Product sheets
Product declarations
Other documentation
Accessories

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RVAZ4-24A
The RVAZ4 series of valve actuators are easy to mount and have a clear position indication which shows the position…
- Force
- 400 N
- Supply voltage
- 24 V AC/DC
- Control signal
- 0…10 V DC

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RVAZ4-24
The RVAZ4 series of valve actuators are easy to mount and have a clear position indication which shows the position…
- Force
- 400 N
- Supply voltage
- 24 V AC
- Control signal
- 3-point

Industrietechnik
RVAZ4-230
The RVAZ4 series of valve actuators are easy to mount and have a clear position indication which shows the position…
- Force
- 400 N
- Supply voltage
- 230 V AC
- Control signal
- 3-point


