Rotary Joint, DP 280 R 51, 1112454-051, 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: right‑hand male thread G 3½ (ISO 228). 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 standardized connection piece 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 industrial machinery that requires continuous fluid circulation within rotating components. It is commonly utilized in the paper and converting industry for heating or cooling drying cylinders, as well as in the plastics industry for temperature control of calendar rolls and extruders. The design is particularly effective for processes involving high-speed rotation where a stationary internal pipe is necessary to manage fluid flow without mechanical interference. By supporting the inner pipe directly within the housing, this unit eliminates the need for external elbows, making it an ideal solution for compact machine assemblies where space is limited and reliable thermal regulation is critical for product quality.
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Specifications
| Category | Universal equipment |
| Product ID | 8211111697-2206 |
| Manufacturer | Maier |
