DGR straight through rotary joints

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This rotary joint adopts the latest mechanical seal design technology for water and air medium applications. The high thrust load capacity and silicon carbide sealing components make the DGR series rotary joints run longer and require lower maintenance than other ball bearings. All O-rings are fully inserted into the gland, and the seal is loaded with a spring,

Structural straight through: The fluid passes through in a straight line along the axial direction without bending, with low pressure loss, suitable for medium and low pipe diameter scenarios with a diameter of Φ 6-50mm (about 1/4 “-2”).
Performance parameters: Typical operating conditions are speed ≤ 3000 RPM, pressure 20-40 Bar, temperature -20 ℃ to+120 ℃, medium limited to water, gas or non corrosive liquids (non steam or high-temperature oil).
Sealing design: using silicon carbide/silicon carbide or silicon carbide/graphite mechanical seals, balanced structure reduces end face pressure, low leakage rate, and good wear resistance; The O-ring is embedded with a pressure cover to prevent extrusion and improve sealing reliability.
Bearing support: Multiple high thrust load bearings (not ordinary ball bearings), supporting axial/radial loads and extending maintenance cycles; Some models emphasize “oil-free lubrication” or low maintenance design.
Installation connection: Common threads (such as NPT/PT) or quick change flanges, with observation holes on the housing for leak detection, and some with oil nozzles for bearing maintenance.
Typical applications: Metallurgical roller cooling, injection molding machine mold temperature control, rubber and plastic machinery, drying drums and other equipment that require medium to high speed rotation and clean fluid transmission. ‌‌
The DGR series single channel straight through rotary joint adopts a sealing combination that can adapt to poor water conditions to cope with early wear and tear
1. Two precision imported deep groove ball bearings support smooth rotation;
2. Balanced mechanical seal design structure reduces the impact of pressure changes on the sealing surface and extends its service life;
3. The standard product uses a friction sealing pair of silicon carbide and wear-resistant graphite, which has a long service life.