DESCRIPTION
The MUH-B style metric polypack is pre-loaded with a Nitrile quad-ring or o-ring giving positive lip contact at low pressure and vacuum conditions. This seal provides positive lip sealing at all pressures, longer life of the seal due to Nitrile’s lower compression set compared to urethane, and stability to the lips resisting collapse under severe load changes and high cycle rates.
The shell is molded in high quality polyurethane, ensuring flexibility for installation and high/low pressure performance. The MUH-B is also available in other materials such as Viton, EPDM, and HNBR
The MUH-B typically includes an o-ring or quad-ring energizer.
SEAL INFORMATION
Material Type (Primary Seal): POLYURETHANE
Material Type (Primary Seal): VITON
Material Type (Energizer): 70A NITRILE
Material Type (Energizer): VITON
Durometer (Shore A) POLYURETHANE: 95
Durometer (Shore A) FLUOROCARBON: 90
Temperature Range (F) POLYURETHANE: -40 TO 230
Temperature Range (F) FLUOROCARBON: -20 TO 400
Max Pressure (psi): 5000
Max Pressure (psi) 90A FLUOROCARBON: 2000
Extrusion Gap at Various Pressures (mm):
- 4,500 PSI: 0.50
- 5,000 PSI: 0.40
Max Speed (ft/sec): 3.0
Mating Surface Roughness - Ra (µm) - DYNAMIC: 0.1<>0.4
Mating Surface Roughness - Ra (µm) - STATIC: 1.6 MAX
Part Number Definition (Metric): MUH-(ID)X(OD)X(HT)B (OR -V FOR FLUOROCARBON)
Additional Part Number Definition (Metric): 40 X 50 X 6 = MUH-40X50X6B (OR MUH-40X50X6B-V)