Rotary Joint, DP 275 L 51, 1112580-051, 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 75. Rotor connection: left‑hand male thread G 3 (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 ≈733 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 deployed in heavy industrial machinery requiring continuous thermal management of large-diameter rotating drums, calenders, and drying cylinders. Typical installations include paper manufacturing machines, rubber processing mills, and textile finishing lines where cooling water or hot water must be reliably transferred between stationary supply lines and fast-spinning shafts. The dual-flow configuration with a stationary inner pipe enables simultaneous media supply and return without requiring an external elbow, making it ideal for confined machinery layouts and high-speed rotary drums subjected to continuous thermal cycling.
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Specifications
| Category | Universal equipment |
| Product ID | 8211111697-2209 |
| Manufacturer | Maier |
