Rotary Joint, DP 280 R 11, 1112454-011, 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 non‑rotating inner pipe. 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 industry for large-scale drying cylinders and calendar rolls, where the two-way flow design facilitates efficient heat transfer while accommodating a stationary inner pipe. The robust construction and stainless steel rotor make it ideal for textile finishing equipment and plastic film extrusion lines, where consistent fluid circulation is required under moderate pressure and high rotational speeds. By integrating a maintenance-free bearing system and a balanced mechanical seal, this unit ensures reliable operation in continuous production environments that demand minimal downtime and high thermal stability.
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Specifications
| Category | Universal equipment |
| Product ID | 8211111697-2218 |
| Manufacturer | Maier |
