Rotary Joint, DP 25 L 53-800, 1112201-800, Christian Maier GmbH & Co. KG
Universal equipmentPrice on request
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Description
Rotary joint for transfer of thermal oil. Series DP Standard, variant -800 for thermal oil. One‑way flow, no elbow. Nominal size DN 25. Rotor connection: left‑hand male thread G 1 (ISO 228). Housing connection: radial G 1 female thread. Seal combination 3 (metal impregnated synthetic carbon 19W – silicon carbide 18C). Medium: thermal oil. Temperature range –10…160 °C, pressure range 0.2…10 bar, maximum speed 55000/DN ≈2200 min⁻¹. Housing made of brass, bead‑blasted. Rotor made of stainless steel. Two ball bearings, heat‑stabilised for series -800, factory‑lubricated, maintenance‑free up to 80 °C, for higher temperatures relubrication through easily accessible grease point required. Internal balanced mechanical seal. O‑rings Viton®. Additional axial shaft seal for bearing protection. Connection to rotating pressure system via standardized connection piece with sealing and centring face. Radial housing connection. ATEX certification optional. Five drain holes in housing, can be blocked with plugs in dusty environment.
Possible Applications
This rotary joint is specifically deployed in industrial thermal fluid systems where high-temperature heat transfer media must be continuously fed from a stationary supply into fast-rotating machine components. Typical applications include cylindrical rolls in calendar stacks, plastic film extrusion lines, textile processing drums, and rubber vulcanizing presses that require precise surface temperature control. The balanced mechanical seal configuration and heat-stabilized bearings enable reliable operation under the thermal stress and high rotational speeds characteristic of continuous web-processing machinery and industrial laminators.
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Specifications
| Category | Universal equipment |
| Product ID | 8211111697-2192 |
| Manufacturer | Maier |
