The Multiport ball valve is a versatile shut-off valve designed for installations where, in addition to flow isolation, a control, venting, or drainage outlet is required.
The standard version is equipped with a drain outlet on one side and an M10 threaded port on the other, allowing the connection of various probes, sensors, or measuring devices.
This version is available in sizes DN15 and DN20.
Thanks to its multiport design, the valve supports easy installation of additional accessories, greatly expanding its usability in heating, plumbing, and other technical systems.
| IDENT | EAN | DN | PN | G [in] |
L [mm] |
D1 [mm] |
B [mm] |
H1 [mm] |
Sw [mm] |
Sw1 [mm] |
Sw2 [mm] |
| 1241711 | 3838963245599 | 15 | 25 | G1/2" | 52,1 | 70,1 | 55 | 38,4 | 25 | 17 | 19 |
| 1241712 | 3838963245605 | 20 | 25 | G3/4" | 59,4 | 75,5 | 55 | 40,6 | 30 | 17 | 19 |
Operating Data
Working pressure: max. 25 bar
Operating temperature range: -10 °C to +110 °C (for water +0.5 °C to +110 °C – without steam)
Medium: water (non-aggressive media)
The quality of heating water must comply with ÖNORM H5195 or VDI 2035 standards. The use of ethylene or propylene glycol in a mixing ratio of 25–50% is permitted. When using ethylene glycol products for frost and corrosion protection, follow the manufacturer's documentation.
Note: EPDM seals are sensitive to lubricants derived from mineral oils, which may cause failure of EPDM seals in valves that use them. The HERZ ball valve for heating and cooling water is not suitable for use with aggressive media (such as acids, alkalis, flammable, and explosive gases), as they may damage the sealing components.
