HM74

详细说明

Design Features:

n  Chamber seal (modular design), optional with housing and lid;

n  Shrink fitted one-piece seal ring, can bear higher pressure;

n  Integral housing design, high reliability;

n  Very small operation gap - low leakage;

n  Dry running, no need liquid lubricated and cooling;

n  Self-adjusting seal rings;

n  Compensation of radial and axial shaft deflections;

n  No sealing components mounted on the shaft and hence no additional shaft vibrations;

n  Seal rings running contact-free - sliding faces and machine consume no additional power;

n  Balanced seal ring inside chamber;

n  Seal ring axially spring-loaded, better alignment and higher reliability;

n  According to the characteristics of the medium, the connecting ports of exhaust and vent can be collocated;

n  High reliability, maintenance-free operation.

Performance Capability:

n  Shaft diameter: 20 to 200 mm;

n  Operating pressure: vacuum to 15 MPa;

n  Operating temperature: -60°C to 225°C;

n  Sliding velocity: max. 240 m/s;

n  Radial play: ± 1.0 mm;

n  Axial movement: theoretically unlimited;

n  Recommended wear guard: > 58 HRC.

Application:

n  Oil and gas industry; refining technology; chemical industry; petrochemical industry; pulp and paper industry; metal production and processing; power plant technology;

n  Integral-gear compressors (one or multi-stage); screw and chiller compressors; steam turbines; regulating devices;

n  Gases; fumes and exhaust, solids containing, flammable, acid containing and toxic gases; (solids containing) steams / liquid mist; oil mist / penetrating oil.