- Page 11 of 14 - Seal & Cylinder Source, Inc.

PS1400 PISTON SEAL ASSEMBLIES

INSTALLATION OF PTFE PISTON SEALS
Installing PTFE piston seals is not always an easy task. The use of installation tools 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&deg F or 140&deg 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	15% GLASS FILLED PTFE SEAL RUBBER ENERGIZER
TEMPERATURE RANGE	-40° to +220° F
PRESSURE RANGE	0 to 5,000 PSI
SPEED	12 FT/SEC
PART NUMBER	(Piston Seal)(Type of Seal) - (Size)

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PS1500 PISTON SEAL ASSEMBLIES

Totally interchangeable with Style PS1400 PTFE piston seals, Style PS1500 piston seals are molded from tough 60 shore D durometer polyurethane. During the molding process, a .002 in. thick band of molybdenum is molded into the outside diameter of the seal ring for reduced friction. PS1500 piston seals are easily stretched over the piston and recover rapidly with the elimination of the 'cold flow' characteristics found in PTFE seals. Piston diameter 'F' dimensions are given for pistons without wear rings.

SEAL INFORMATION
MATERIAL	POLYURETHANE SEAL RUBBER ENERGIZER
TEMPERATURE RANGE	-40° to +200° F
PRESSURE RANGE	0 to 5,000 PSI
SPEED	3 FT/SEC
PART NUMBER	(Piston Seal)(Type of Seal) - (Size)

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PS1800 PISTON SEAL ASSEMBLIES

The PS1800 provides low friction, high strength piston sealing. The PS1800 also provides double-acting piston sealing in a compact design that meets the requirements of ANSI/B93-32-1973. NOTE: Piston diameter 'I' dimensions are given for pistons without wear rings.

SEAL INFORMATION
MATERIAL	15% GLASS FILLED PTFE SEAL RUBBER ENERGIZER
TEMPERATURE RANGE	-40° to +220° F
PRESSURE RANGE	0 to 5,000 PSI
SPEED	12 FT/SEC
PART NUMBER	(Piston Seal)(Type of Seal) - (Size)

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PS1850 PISTON SEAL ASSEMBLIES

The PS1850 piston seal can be used interchangeably with the PS1800 style piston seal. This seal provides improved heat resistance for demanding applications. NOTE: Piston diameter 'I' dimensions are given for pistons without wear rings.

SEAL INFORMATION
MATERIAL	BRONZE FILLED PTFE SEAL RUBBER ENERGIZER
TEMPERATURE RANGE	-40° to +220° F
PRESSURE RANGE	0 to 5,000 PSI
SPEED	12 FT/SEC
PART NUMBER	(Piston Seal)(Type of Seal) - (Size)

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PS1900 NON-STANDARD PISTON SEAL ASSEMBLIES

These specifically sized seals are for certain OEM cylinders (primarily Heil & Timberjack). Their use is intended for existing housings where the old seals are dimensionally comparable to the table below. Please call your sales representative if you need additional assistance.

SEAL INFORMATION
MATERIAL	GLASS FILLED PTFE SEAL RUBBER ENERGIZER
TEMPERATURE RANGE	-40° to +220° F
PRESSURE RANGE	0 to 5,000 PSI
SPEED	12 FT/SEC
PART NUMBER	(Piston Seal)(Type of Seal) - (Size)

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PS2000 PISTON SEAL ASSEMBLIES

Nylon Step Cut
Some PS2000 piston seals utilize a round instead of a square energizer. Also, piston diameter "I" dimensions are given for pistons without wear rings. Many sizes shown are completely interchangeable with style PS914 piston seals.

SEAL INFORMATION
MATERIAL	GLASS FILLED NYLON 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) - (Groove Width)

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PS2470 PISTON SEAL ASSEMBLIES

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.

SEAL INFORMATION
MATERIAL	40% BRONZE FILLED PTFE SEAL, RUBBER ENERGIZER
TEMPERATURE RANGE	-40° to +220° F
PRESSURE RANGE	0 to 5,000 PSI
SPEED	12 FT/SEC
SPEED	12 FT/SEC
PART NUMBER	(Piston Seal)(Type of Seal) - (Size)

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PS2700 PISTON SEAL ASSEMBLIES

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)

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PS914 PISTON SEAL ASSEMBLIES

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)

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PSA PISTON SEAL ASSEMBLIES

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 BEARING
TEMPERATURE RANGE	-22° to +212° F
PRESSURE RANGE	0 to 6,000 PSI
MAXIMUM SPEED	1.5 Ft/Sec.
PART NUMBER	(Prefix) - (Size)

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PSA-58 PISTON SEAL ASSEMBLIES

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)

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PSA-59 PISTON SEAL ASSEMBLIES

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)

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PSA-65 PISTON SEAL ASSEMBLIES

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)

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PSC PISTON SEAL ASSEMBLIES

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 ENERGIZER
TEMPERATURE 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 ENERGIZER
TEMPERATURE RANGE	-40° to +235° F
PRESSURE RANGE	0 to 5,000 PSI
PART NUMBER	(Prefix) - (O-Ring Size) - (Fluorotrel)

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PSF PISTON SEAL ASSEMBLIES

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)

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PSM PISTON SEAL ASSEMBLIES

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 Base

SEAL INFORMATION
MATERIAL	93A URETHANE SEAL 70A NITRILE ENERGIZER
TEMPERATURE RANGE	-65° to +220° F
PRESSURE RANGE	0 to 5,000 PSI
PART NUMBER	(Prefix) - (Size)

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