Rotary Joint, DPR 275 L 51, 1112584-051, 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 rotating inner pipe (directly borne in housing). 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 engineered for heavy-duty thermal fluid transfer in the paper, plastics, and textile industries, where continuous web processing requires reliable media delivery to rotating drums and calendar rolls. It is deployed on large drying cylinders, chill rolls, and laminating presses to supply high-temperature water or cooling media without leakage during high-speed rotation. The balanced mechanical seal and robust dual-bearing support enable the unit to withstand the rigorous duty cycles and thermal shocks inherent in continuous manufacturing lines. Additionally, its direct-borne inner pipe design eliminates the need for external elbows, making it ideal for compact machinery configurations where radial space is restricted.
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Specifications
| Category | Universal equipment |
| Product ID | 8211111697-2233 |
| Manufacturer | Maier |
