The file is an introduction to the Kombi-2-plus flow regulating valve, including product design, materials, application scenarios, product features, functions, dimensions, ordering information, accessories, connections, measuring equipment, spare parts, flow data and other information.
The Kombi-2-plus valve is installed in the return mains of pump‑driven warm‑water heating systems and cold‑water cooling systems to regulate hydronic balance and act as a shut‑off valve. It features a maintenance‑free spindle with double O‑ring sealing, PTFE seat sealing, and a visible pre‑setting dial.
The document covers the valve’s design, materials, application, features, technical specifications, dimensions, accessories, connections, measuring equipment, spare parts, flow data for various sizes, and the influence of coolant temperature on flow values, including correction factors.
| Operating temperature | 2…130 °C (36…266 °F) |
|---|---|
| Maximum operating pressure | 16 bar (232 psi) |
| Maximum differential pressure | 2.0 bar (29 psi) |
| Valve housing material | Red bronze |
| Seal material | EPDM |
It is installed in the return mains of pump‑driven warm‑water heating systems and cold‑water cooling systems to regulate hydronic balance and serve as a shut‑off valve.
The valve housing is made of red bronze, the insert and pressure test cocks are brass, and the O‑rings and soft seals are EPDM.
The valve can operate up to 16 bar (232 psi).
A correction factor f is applied to the kv‑value to account for coolant temperature, with tables provided for water and glycol mixtures.