HUNGER PARTS

12.598" x 13.780" x 0.787" (320.00 mm x 350.00 mm x 20.00 mm)

H&D SKU: PU-TDI 320X350X20

Product Availability : On Back Order

$1,684.96

Qty:

DESCRIPTION

Manufactured by Hunger Hydraulics®, the PU-TDI is a metric tandem seal used to seal hydraulic cylinder rods. The PU-TDI consists of 2 parts; an elastic ring made of polyurethane with a sealing lip, and an internal slide ring made of abrasion resistant Bronze-filled PTFE with a sealing edge. Prior to fitting, the sealing lip protrudes beyond the nominal diameter of the seal and is pressed against the piston rod. Thus effective sealing is provided even at zero pressure.

The slide ring is surrounded by the elastomer sealing ring and moves axially in direct contact with the piston rod. With increasing pressure and compression of the sealing ring, it is the slide ring which is predominantly pressed against the piston rod. The slide ring sealing edge produces an annular cavity where any oil that has passed the elastomer lip is collected. During the return stroke, the collected oil is forced back into the cylinder.

SEAL INFORMATION

Material Type (Primary Seal): POLYURETHANE

Material Type (Slide Ring): BRONZE-FILLED PTFE

Durometer (Shore A) POLYURETHANE: 87

Durometer (Shore D) SLIDE RING: 69

Temperature Range (F): -31 TO 212

Max Pressure (psi) - STANDARD PISTON DESIGN: 6500

Max Pressure (psi) - REINFORCED PISTON DESIGN: 9100

NOTE: THE STANDARD GLAND DESIGN PERMITS USE TO 6,500 PSI AND THE REINFORCED GLAND DESIGN UP TO 9,100 PSI. PLEASE CONTACT THE H&D TECHNICAL GROUP WITH INQUIRIES.

Mating Surface Roughness - Ra (µm) - DYNAMIC: 0.1<>0.3

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

Part Number Definition (Metric): PU-TDI (ROD DIAMETER)X(OD)X(HT)

Additional Part Number Definition (Metric): 100 X 115 X 12 = PU-TDI 100X115X12

Products specifications

ID (Inch)	12.598
OD (Inch)	13.780
Height (Inch)	0.787
ID (Metric)	320.00
OD (Metric)	350.00
Height (Metric)	20.00

Recently viewed products

HUNGER PARTS