Rotary Joint, DP 20 R 53-800, 1112150-800, 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 20. Rotor connection: right‑hand male thread G 3/4 (ISO 228). Housing connection: radial G 3/4 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 ≈2750 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 engineered for integration into thermal fluid heating circuits found in industrial laminating presses, rubber calendering rolls, and plastic film extrusion lines where continuous fluid transfer at moderate temperatures is required. Its specialized carbon-silicon carbide seal combination and heat-stabilized bearings reliably handle hot organic heat transfer media without coking or premature degradation under high rotational speeds. The compact one-way flow architecture and radial housing connection make it particularly suitable for constrained machinery layouts on single-spindle winding drums and rotating cylinder dryers in the textile and paper converting sectors.
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Specifications
| Category | Universal equipment |
| Product ID | 8211111697-2184 |
| Manufacturer | Maier |
