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The twin lip design helps solve difficult rod sealing problems by providing lower friction, increased stability, and high dynamic lip force, while preventing air penetration from outside the cylinder. -
The RBS style rod buffer seals are a rectangular urethane buffer ring designed to absorb pressure fluctuations thereby protecting the primary rod seal. Some sizes include a radial and axial slot, which faces the pressure, to relieve back pressure between the primary and buffer seal. This simple design is commonly found on older construction equipment.SL=SLOTTED
SEAL INFORMATION MATERIAL 92A URETHANE TEMPERATURE RANGE -40° to +200° F PRESSURE RANGE 0 to 5,000 PSI SPEED 3 FT/SEC PART NUMBER (Prefix) - (ID) X (OD) -
QR, BUNA-N QUAD RINGS
The four-lobed design of these seals provides twice the sealing surface of ordinary o-rings. They can be used in a variety of static and dynamic sealing applications including rotary, reciprocating or oscillating motion.
NOTE: Last three digits of part number corresponds to standard o-ring dash numbers (568-218 = QR-4218)
V = FLUOROCARBONSEAL INFORMATION MATERIAL BUNA-N RUBBER TEMPERATURE RANGE -40° TO +240°F PRESSURE RANGE VARIES ACCORDING TO DIAMETRAL CLEARANCE PART NUMBER (Prefix) - (Dash No.) -
Style PU seals are molded from high quality urethane and designed specifically for piston applications. -
Our Style PSU piston seal, or uniring, is a laminated one piece double acting seal made of cast polyurethane. The tough outer layer is highly resistant to abrasion and is impregnated with molybdenum disulfide to reduce friction. The softer inner layer acts as a static seal and also energizes the OD to make full contact with the bore. This seal may be used to replace an existing Uniring or other seals of the same dimensions - O-rings, O-rings with back-ups, T-seals, U-seals, etc. NOTE: Piston diameter 'I' dimensions are given for pistons without wear rings.
SEAL INFORMATION MATERIAL 60D & 57A
URETHANE COMPOSITETEMPERATURE RANGE -65° to +220° F PRESSURE RANGE 0 to 5,000 PSI SPEED 3 FT/SEC PART NUMBER (Prefix) - (OD) x (ID) x (Groove Width) -
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" -
Molded from 93 Shore A polyurethane with a 70 Shore A energizer, this seal utilizes the same groove dimensions as a standard o-ring to T-seal. One or two Style 575 back-up rings may be used for wider grooves. Extrusion resistant by design, this seal also is resistant to rolling and twisting. Installation is an easy two step snap-in procedure with no need to re-size before insertion into the bore. NOTE: Piston diameter 'I' dimensions are given for pistons without wear rings.
F= Fluorotrel, WB= Wide BaseSEAL INFORMATION MATERIAL 93A URETHANE SEAL
70A NITRILE ENERGIZERTEMPERATURE RANGE -65° to +220° F PRESSURE RANGE 0 to 5,000 PSI PART NUMBER (Prefix) - (Size) -
Designed to fit on one or two piece pistons, this seal employs a nitrile seal element, PTFE split back-up rings and polyacetal split bearing rings.
SEAL INFORMATION MATERIAL NITRILE SEAL POLYACETAL ANTI-EXTRUSION RING TEMPERATURE RANGE -22° to +212° F PRESSURE RANGE 0 to 3,000 PSI SPEED 3 FT/SEC PART NUMBER (Prefix) - (O-Ring Size) -
The Style PSC is a double acting piston seal designed to replace o-rings, quad-rings, and T-seals with the same groove dimensions (O-ring dash number). Style 575 urethane back-up rings may be added to either or both sides of the 'PSC' to accommodate wider groove widths. The PSC is made of 95A Durometer polyurethane, giving it high extrusion and abrasion resistance. The crowned sealing surface produces a positive seal from vacuum to high pressure.
NOTE: Piston diameter 'I' dimensions are given for pistons without wear rings.SEAL INFORMATION MATERIAL 95A POLYURETHANE SEAL
70 A NITRILE ENERGIZERTEMPERATURE RANGE -40° to +200° F PRESSURE RANGE 0 to 5,000 PSI SPEED 3 FT/SEC PART NUMBER (Prefix) - (O-Ring Size) - (Wide Base) These Style PSC are molded from Fluorotrel which is a tough, wear-resistant material able to run at temperatures up to 275° F. Fluorotrel is also resistant to fluids that are incompatible with polyurethane such as water, glycol, water in oil, mineral oil and petroleum. Consult our Engineering Department for other fluids compatible with Fluorotrel
NOTE: Piston diameter "I" dimensions are given for pistons without wear rings.SEAL INFORMATION MATERIAL 55D FLUOROTREL SEAL
70A NITRILE ENERGIZERTEMPERATURE RANGE -40° to +235° F PRESSURE RANGE 0 to 5,000 PSI PART NUMBER (Prefix) - (O-Ring Size) - (Fluorotrel) -
Compact and easy to install, the Style PSA-65 piston seal is a simple and economical design for pressures up to 3,000 PSI. The assembly consists of a nitrile rubber seal and two polyacetal bearings to support the piston. For 1-piece pistons.
SEAL INFORMATION MATERIAL NITRILE SEAL POLYACETAL ANTI-EXTRUSION RING TEMPERATURE RANGE -22° to +212° F PRESSURE RANGE 0 to 3,000 PSI MAXIMUM SPEED 1.5 Ft/Sec. PART NUMBER (Prefix)(Type of Seal) - (Size) -
This style is designed for 2 piece piston. The seal is a molded Nitrile rubber element with bonded rubberized fabric reinforcement and two anti-extrusion polyacetal bearings.
SEAL INFORMATION MATERIAL FABRIC REINFORCED NITRILE SEAL POLYACETAL ANTI-EXTRUSION RING TEMPERATURE RANGE -22° to +212° F PRESSURE RANGE 0 to 5,000 PSI MAXIMUM SPEED 1.5 ft / second PART NUMBER (Prefix)(Type of Seal) - (Size) -
Style PSA-58 piston seals combine a heavy duty, fabric reinforced seal with two polyacetal 'L' bearings. This construction allows the seal to withstand pressures up to 5,000 PSI. 'L' bearings also react to pressure to prevent extrusion and support the piston. For 2-piece pistons.
SEAL INFORMATION MATERIAL FABRIC REINFORCED NITRILE SEAL POLYACETAL ANTI-EXTRUSION RING TEMPERATURE RANGE -22° to +212° F PRESSURE RANGE 0 to 5,000 PSI MAXIMUM SPEED 1.5 ft / second PART NUMBER (Prefix)(Type of Seal) - (Size) -
Designed to fit on one or two piece pistons, this piston seal employs a nitrile seal for high sealability, nylon split back-ups for extrusion resistance, and two split bearing rings. No further support bearings required.
SEAL INFORMATION MATERIAL 90A NITRILE SEAL
NYLON BACK-UP
NYLON BEARINGTEMPERATURE RANGE -22° to +212° F PRESSURE RANGE 0 to 6,000 PSI MAXIMUM SPEED 1.5 Ft/Sec. PART NUMBER (Prefix) - (Size) -
Nylon Step Cut
NOTE: Piston diameter 'I' dimensions are given for pistons without wear rings.SEAL INFORMATION MATERIAL GLASS FILLED NYLON SEAL RUBBER ENERGIZER TEMPERATURE RANGE -40° to +220° F PRESSURE RANGE 0 to 6,000 PSI SPEED 3 FT/SEC PART NUMBER (Piston Seal)(Type of Seal) - (Size) - (Groove Width) -
This seal, molded from high grade polyester with 5% glass fiber and 5% PTFE, may retrofit the PS1800 seals, considering all dimensions are comparable. This seal material, with a high degree of 'memory', stretches over the piston and snaps in the groove for immediate assembly. These seals also feature low friction and high abrasion and extrusion resistance which helps to eliminate assembly damage. Piston diameter 'F' dimensions are given for pistons without wear rings.
SEAL INFORMATION MATERIAL GLASS/PTFE FILLED POLYESTER SEAL, RUBBER ENERGIZER TEMPERATURE RANGE -40° to +220° F PRESSURE RANGE 0 to 5,000 PSI SPEED 3 FT/SEC PART NUMBER (Piston Seal)(Type of Seal) - (Size)
