Rotary Joint, DPR 280 R 11, 1112458-011, 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 rotating inner pipe (directly borne in housing). Nominal size DN 80. Rotor connection: right‑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 engineered for high-performance thermal management in heavy-duty rotating machinery where precise temperature control of cooling or heating media is critical. It is primarily utilized in the paper and converting industries for drying cylinders and calender rolls, as well as in the plastics industry for temperature-controlled extrusion and calendering lines. The design is specifically optimized for applications involving rotating inner pipes, making it ideal for high-speed drum systems that require reliable fluid transfer without the need for external elbow supports. Its robust construction and balanced mechanical seal configuration ensure consistent performance under the demanding pressure and thermal cycles typical of continuous industrial manufacturing processes.
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Specifications
| Category | Universal equipment |
| Product ID | 8211111697-2242 |
| Manufacturer | Maier |
