Rotary Joint, DP 280 L 11, 1112455-011, Christian Maier GmbH & Co. KG
Universal equipmentPrice on request
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Description
Rotary joint for cooling water and hot water. Large Series DP 65-100. Two‑way flow, designed for non‑rotating inner pipe. Nominal size DN 80. Rotor connection: left‑hand male thread NPT 3½ (ANSI). Housing connection: radial NPT 2 female thread (B1) and NPT 2 (B2). Seal combination 1 (synthetic carbon 19K – chrome steel 18E). Medium: cooling water, hot water. Temperature range –10…140 °C, pressure range 0.2…10 bar, maximum speed 55000/DN ≈688 min⁻¹. Housing made of lacquered steel. Rotor made of stainless steel. Two ball bearings, factory‑lubricated, maintenance‑free up to 80 °C, for higher temperatures relubrication through easily accessible grease point required. Internal balanced mechanical seal, springs outside medium flow. Inner pipe supported in housing, no elbow required. Connection to rotating pressure system via standardized connection piece with sealing and centring face. Radial and axial housing connections with right‑hand female thread NPT (ANSI). Anti‑rotation device. ATEX certification optional. Set of drain plugs fits Large Series.
Possible Applications
This rotary joint is specifically engineered for high-performance thermal management in heavy-duty rotating machinery where precise temperature control of cooling or heating media is critical. It is commonly integrated into large-scale paper processing calendars, textile drying cylinders, and rubber mixing mills where the internal stationary pipe configuration allows for efficient heat transfer without the mechanical complexity of external elbows. The robust construction and balanced mechanical seal make it ideal for high-speed industrial rollers that require continuous, reliable fluid circulation under moderate pressure. By facilitating the transition of water between stationary supply lines and rotating drums, this component ensures consistent thermal stability in continuous manufacturing lines prone to thermal expansion and vibration.
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Specifications
| Category | Universal equipment |
| Product ID | 8211111697-2222 |
| Manufacturer | Maier |
