Mechanical Seals and Seal Support Systems
Pusher Seals - DHTW/UHTW
About this product
DHTW and UHTW pusher-type mechanical seals are custom engineered to deliver exceptional reliability in high energy, critical pumping applications. DHTW and UHTW seals are balanced, flexible stator cartridge seals available in single or dual seal configurations.
Features and Benefits
- Unmatched performance and extended seal life derived from FEA-designed seal faces that boast zero net deflection from thermal, hydraulic, and dynamic forces
- Superior high temperature, slow roll, and hot standby operation enabled by high performance circulating features the deliver optimum cooling at all operating speeds
- Reliable operation in high speed services achieved via precisely controlled seal face balance ratio
- Withstands torque from high viscosity fluids and high speeds with robust drive engagement
- Extended equipment uptime with available secondary containment options
Specifications
- Metal components:
- Stainless Steel
- Rotating Face:
- Silicon Carbide
- Tungsten Carbide
- Stationary Face:
- Carbon
- Silicon Carbide
- Gaskets:
- Fluoroelastomer
- Perfluoroelastomer
- EPDM
- Nitrile
- Shaft Sizes:
- 25.4 to 228.6 mm (1.000 to 9.000″)
- Pressure:
- up to 207 bar (3000 psi),
- Temperature:
- -40 to 371°C
- Speed:
- up to 76 m/s (250 fps)
Configurations
- Single seals
- UHTW
- DHTW
- Dual seals
- UHTW/DHTW – wet seal
- UHTW/GSLW – dry running backup
- DHTW/DHTW – wet seal
- UHTW/UHTW – wet seal
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