| SEAL INFORMATION | |
|---|---|
| MATERIAL | NYLON |
| TEMPERATURE RANGE | -40° to +220° F |
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Molded from glass filled nylon, these step-cut bearings also act as retainers for Hydrolock vee sets. The following bore sizes are available. -
Molded from 70A nitrile for high sealability they employ a hard nylon anti-extrusion ring as a companion piece.
SEAL INFORMATION MATERIAL 70A NITRILE
NYLON BACK-UPTEMPERATURE RANGE -20° to +220° F PRESSURE RANGE 0 to 3,000 PSI SPEED 3 FT/SEC PART NUMBER (PREFIX) - (OD) -
This capped piston seal consists of a filled PTFE cap, a T-shaped NBR energizer, and two split nylon backup rings. It exhibits low friction, high sealability, and excellent resistance to extrusion and wear.SEAL INFORMATION MATERIAL PTFE PISTON SEAL NYLON BACK-UP NITRILE ENERGIZER TEMPERATURE RANGE -40° to +220° F PRESSURE RANGE 0 to 6,000 PSI SPEED 4.5 FT/SEC SUFFIX BR= BRONZE FILLED PTFE CAP PART NUMBER (Prefix) - (OD) x (ID) x (W) -
One Piece Double Acting Piston Cups
This complete piston cup with a simple, one-piece construction serves the same purpose as a multi-assembly unit and is more economical with easy maintenance, dependability and long life. The unique piston cup consists of homogeneous rubber bonded to a zinc coated steel plate. The center hole may be enlarged to accommodate larger piston rods. Recommended for pneumatic and low-pressure hydraulic applications.SEAL INFORMATION MATERIAL RUBBER LIP, ZINC COATED STEEL PLATE TEMPERATURE RANGE -40° to +220° F PRESSURE RANGE 0 to 800 PSI SPEED 3 FT/SEC PART NUMBER (Prefix) - (Bore Size) -
Molded in a tough urethane this rod u-seal fits tightly in the groove while providing increased radial force on the rod. The employment of a nylon back up makes it highly extrustion resistant.
GT = GREEN TWEED SEALSEAL INFORMATION MATERIAL URETHANE SEAL
NYLON BACK-UPTEMPERATURE RANGE -65° to +220° F PRESSURE RANGE 0 to 5,500 PSI SPEED 3 FT/SEC PART NUMBER (Prefix) - (ID) x (OD) x (H) -
Molded in polyurethane, these rotary pressure seals are specifically designed for use sin hydraulic swivel joints.
SEAL INFORMATION MATERIAL 92A URETHANE TEMPERATURE RANGE -50° to +220° F PRESSURE RANGE 0 to 5,000 PSI SPEED 3 FT/SEC PART NUMBER (Prefix) - (ID) x (OD) x (H) -
Made from filled PTFE, these rings are suitable for light duty bearing service, but are more often installed on the outboard ends of a piston to catch metal particles and protect the seal area.
NOTE: MWRZ-G15 Relief Groove, not splitSEAL INFORMATION MATERIAL FILLED PTFE TEMPERATURE RANGE -100° to +550° F SPEED 12 FT/SEC COMPRESSIVE STRENGTH 1,700 PSI TENSILE STRENGTH 2,200 PSI PART NUMBER (Prefix) - (OD) x (W) x (CS) -
Metal Clad WiperSEAL INFORMATION MATERIAL 92A URETHANE TEMPERATURE RANGE -65° to +230° F SPEED 3 FT/SEC PART NUMBER (Prefix) - (Size) -
This is a single acting rod seal designed for low and high pressure sealing and is commonly found in telescopic cylinders. The seal consists of a molded rubber sealing lip, rubberized fabric hell. and a polyester header, for improved extrusion resistance.
SEAL INFORMATION MATERIAL RUBBER, FABRIC, POLYESTER ELASTOMER TEMPERATURE RANGE -22° to +212° F PRESSURE RANGE 0 to 5800 PSI SPEED 1.5 FT/SEC PART NUMBER (Prefix) - (ID) x (OD) x (Height) -
SEAL INFORMATION MATERIAL BRONZE SPEED 3 FT/SEC PART NUMBER (Prefix) - (OD) x (W) x (RW) -
Our premium single-acting polyurethane rod seal incorporates an NBR energizer to seal at low pressures. The twin lip design provides stability and friction-reducing lube retention for dry rod sealing, and the included hard acetal backup ring resists extrusion. MRTUB is capable of pressures up to 10,000 psi in approved applications. Please consult Hercules Engineering for pressures above 6,000 psi.
SEAL INFORMATION MATERIAL 94 A URETHANE SEAL
RUBBER ENERGIZER
POLYACETAL ANTI-EXTRUSION RINGMAXIMUM OPERATING CONDITIONS MAXIMUM SPEED
3FT./SECPRESSURE RANGE
0 - 6,000 PSITEMPERATURE RANGE
-50° TO +230° FMAXIMUM EXTRUSION GAP PRESSURE 2,400 PSI 3,750 PSI 6,000 PSI 7,500 PSI 10,000 PSI MAX. RADIAL GAP (INCH) .040 .032 .024 .016 .010 PART NUMBER (Prefix)(CS) - (ID) - (Height) -
These piston seals provide bi-directional, low friction sealing with increased stability and superior leakage control. The square cut energizer provides low pressure sealing and eliminates backside leakage. This seal also effectively seals between different fluids on each side of the piston seal, making gas/liquid sealing combinations possible. NOTE: Piston diameter 'I' dimensions are given for pistons without wear rings.
SEAL INFORMATION MATERIAL 40% BRONZE FILLED PTFE SEAL, RUBBER ENERGIZER AND QUAD® RING TEMPERATURE RANGE -40° to +250° F PRESSURE RANGE 0 to 5,000 PSI SPEED 6 FT/SEC PART NUMBER (Piston Seal) - (Size) MAXIMUM EXTRUSION GAP PRESSURE 1000 PSI 3000 PSI 5000 PSI MAX DIAM. GAP
BORE 1-1/2" - 5"0.024" 0.008" 0.005" MAX DIAM. GAP
BORE 6" - 10"0.030" 0.010" 0.006" -
A heavy duty double-acting assembly, the capped piston T-seal exhibits excellent sealability, extrusion resistance and wearability. T-seals with 'BR' suffix utilize a Bronze Filled PTFE cap instead of the standard Glass Filled PTFE cap.
INSTALLATION OF PTFE PISTON SEALS
Installing PTFE piston seals is not always an easy task. The use of installation tools (Designated by a 'CTC-' product code prefix) is recommended but often not convenient when working with a wide variety of sizes and applications. Finger installations are practical with rings of smaller cross-sections. Using fingers or a rounded plastic stick, knead the ring over the piston into the groove. With rings of larger cross-sections it may be necessary to heat the ring. Warming the ring in water or oil at 130° F or 140° F for about 5 minutes will soften the material for easier installation. Always avoid inconsistent stretching or overstretching of the PTFE seal.To prevent the PTFE ring from snapping into the wrong groove, cover wear ring grooves with plastic tape.
After seal installation, assembly of the cylinder may be difficult if the piston seal is loose on the piston or the cylinder has an inadequate leading edge chamfer. In such cases, compress the piston seal with belting or a suitable hose clamp. If the piston seal must pass threads or any other sharp edges during the cylinder assembly, cover the edges with plastic tape or wrap.
SEAL INFORMATION MATERIAL PTFE CAP
NYLON BACK-UP
RUBBER ENERGIZERTEMPERATURE RANGE -40° to +220° F PRESSURE RANGE 0 to 6,000 PSI SPEED 4.5 FT/SPEED> PART NUMBER (Prefix) - (Bore Size) -
Molded in PTFE with a rubber energizer and a nylon anti-extrusion ring, this seal absorbs the shock of pressure spikes protecting the rod seal.
SEAL INFORMATION MATERIAL PTFE BUFFER
70A NBR ENERGIZER
NYLON BACK-UPTEMPERATURE RANGE -40° to +220° F PRESSURE RANGE 0 to 5,000 PSI SPEED 3 FT/SEC PART NUMBER (Prefix) - (ID) x (OD) x (H) -
Molded from 70A nitrile for high sealability they employ a hard nylon anti-extrusion ring as a companion piece.
SEAL INFORMATION MATERIAL 70A NITRILE
ACETAL BACK-UPTEMPERATURE RANGE -20° to +220° F PRESSURE RANGE 0 to 4,000 PSI SPEED 3 FT/SEC PART NUMBER (PREFIX) - (OD)
