Rotary Joint, DP 280 K 91, 1112456-091, 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: K‑flange with centring face and gasket sealing (for DN 40 and larger). Housing connection: radial G 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 K‑flange with sealing and centring face. Radial and axial housing connections with right‑hand female thread G/BSP (ISO 228) or 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 cooling or heating media must be transferred into a pressurized system. It is commonly utilized in the paper and pulp industry for drying cylinders and calendar rolls, as well as in the plastics and rubber sector for temperature-controlled calender rolls and mixing mills. The design is particularly suited for processes requiring a non-rotating inner pipe configuration, ensuring reliable fluid delivery to rotating drums while maintaining seal integrity under varying thermal loads. Its robust construction and balanced mechanical seal make it an ideal component for continuous-duty industrial applications where precise temperature regulation is critical to product quality and equipment longevity.
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Specifications
| Category | Universal equipment |
| Product ID | 8211111697-2214 |
| Manufacturer | Maier |
