Rotary Joint, DP 280 L 51, 1112455-051, 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: left‑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 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-diameter drying cylinders and calendar rolls, where the two-way flow design ensures 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 production lines that require consistent thermal stability under continuous operation. By facilitating reliable fluid transfer in systems with high rotational speeds and demanding pressure cycles, this component prevents thermal degradation and ensures the longevity of rotating process drums.
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Specifications
| Category | Universal equipment |
| Product ID | 8211111697-2210 |
| Manufacturer | Maier |
