Rotary Joint, DP 275 L 11, 1112580-011, 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 75. Rotor connection: left‑hand male thread NPT 3 (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 ≈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 NPT (ANSI). Anti‑rotation device. ATEX certification optional. Set of drain plugs fits Large Series.
Possible Applications
This rotary joint is engineered for thermal management systems in heavy-duty processing machinery that require continuous fluid transfer between stationary supply lines and rotating components. It is commonly deployed in industrial calenders, heavy paper-making drying cylinders, and large laminating presses where cooling or hot water must be reliably circulated through large-diameter rolls operating at moderate rotational speeds. The balanced mechanical seal and robust dual-bearing construction make it particularly well-suited for high-throughput manufacturing environments handling fluctuating thermal loads and demanding duty cycles. Furthermore, the stainless steel rotor and specialized carbon-to-chrome-steel sealing interface prevent premature wear when managing treated industrial process waters.
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Specifications
| Category | Universal equipment |
| Product ID | 8211111697-2221 |
| Manufacturer | Maier |
