DESCRIPTION
The H-wiper is a double-acting wiper seal with both a wiper lip excluding contaminants from the hydraulic system and a beveled-lip, u-cup portion serving as a secondary safeguard against leakage past the primary rod seal. (H-wipers are not pressure seals). 
The shell is molded in polyurethane for light to medium duty hydraulic applications.  Also available in Nitrile for pneumatic and light duty hydraulic applications. 
The H-wiper is also available in Fluorocarbon for a wide range of chemical media and temperatures up to 400F 
 
SEAL INFORMATION
Material Type: NITRILE  
Material Type: FLUOROCARBON  
Durometer (Shore A) POLYURETHANE: 95  
Durometer (Shore A) NITRILE: 90  
Durometer (Shore A) FLUOROCARBON: 90  
Temperature Range (F) POLYURETHANE: -40 TO 220  
Temperature Range (F) NITRILE: -40 TO 225  
Temperature Range (F) FLUOROCARBON: -20 TO 400  
Max Speed (ft/sec): 3.0  
Mating Surface Roughness - Ra (µin) - DYNAMIC: 4<>16  
Mating Surface Roughness - Ra (µin) - STATIC: 32 MAX  
Part Number Definition (Inch): H(ROD DIAMETER)  -  ADD -N FOR NITRILE; ADD -V FOR FLUOROCARBON  
Additional Part Number Definition (Inch): 3" ROD DIAMETER   =   H3000   (OR H3000-N OR H3000-V)