HUNGER PARTS

DESCRIPTION

Manufactured by Hunger Hydraulics®, the GD1000K is a slide ring piston seal assembly used to seal and guide pistons on double-acting hydraulic cylinders. 

The GD1000K consists of 6 parts; a special shaped elastic ring of a modified nitrile, a slide ring of abrasion-resistant Bronze-filled PTFE which acts as the sealing ring, two lateral support rings of modified Polyurethane, and two bearing rings made of a pressure-resistant POM-PTFE/Bronze compound. 

The internal elastic ring energizes the slide ring to press it against the cylinder wall providing a sealing function at zero pressure. The onset of pressure compresses the elastic ring which increases the radial force pressing the slide ring against the cylinder wall, thereby increasing the sealing effect. 

The two support rings prevent extrusion of the slide ring at high pressures. The special profile of the support rings encourages uniform fluid and pressure distribution onto the elastic inner ring. The bearing rings positioned on the support rings make contact with the cylinder walls and prevent metallic contact between the piston and the cylinder tube. 

SEAL INFORMATION

Material Type (Primary Seal): BRONZE-FILLED PTFE 

Material Type (Energizer): 83A NITRILE 

Material Type (Support Rings): POLYURETHANE 

Material Type (Bearings): POM-PTFE/BRONZE 

Durometer (Shore D): 69 

Temperature Range (F): -22 TO 248 

Max Pressure (psi) - STANDARD PISTON DESIGN: 5200 

Max Pressure (psi) - REINFORCED PISTON DESIGN: 9100 

NOTE: THE STANDARD PISTON DESIGN PERMITS USE TO 5,200 PSI AND THE REINFORCED PISTON DESIGN UP TO 9,100 PSI. PLEASE CONTACT THE H&D TECHNICAL GROUP WITH INQUIRIES. 

Max Speed (ft/sec): 3.0 

Mating Surface Roughness - Ra (µm) - DYNAMIC: 0.3<>0.5 

Mating Surface Roughness - Ra (µm) - STATIC: 0.8 MAX 

Part Number Definition (Metric): GD1000K-(OD)X(ID)X(HT) 

Additional Part Number Definition (Metric): 100 X 82 X 36 = GD1000K-100X82X36