Rotary Joint, DP 25 R 53-800, 1112200-800, 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: right‑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 thermal transfer systems where heat transfer oil must be reliably routed from stationary supply lines into rapidly rotating machine components. Typical installations include industrial calendar rolls, laminating machines, and rubber vulcanizing presses that require precise surface temperature control within moderate thermal ranges. The balanced mechanical seal and high-speed capability make it well-suited for high-rpm rotating drums in plastic film extrusion and textile processing lines. Furthermore, the brass housing and stainless steel rotor construction handle continuous duty cycles in demanding manufacturing environments while preventing fluid leakage during dynamic operation.
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Specifications
| Category | Universal equipment |
| Product ID | 8211111697-2185 |
| Manufacturer | Maier |
