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O-rings as elastic loops that seal static and dynamic applications. They are used to seal the space between cylinders, pistons, pipes and tubes and can be made from various materials.

70A Durometer | Nitrile Material | 9 MM Nominal Inner Diameter | 2 MM Cross Section | O-Ring

Features

• Chemical resistance
• Temperature range of -40 °F to 220 °F

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” thick band of molybdenum disulfide 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 “I” dimensions are given for pistons without wear rings.

60 Shore D Durometer | Polyurethane Material | 6.482 in Nominal Inner Diameter | Piston Seal

Features

• Easy assembly
• Low friction capabilities

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” thick band of molybdenum disulfide 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 “I” dimensions are given for pistons without wear rings.

60 Shore D Durometer | Polyurethane Material | 1.241 in Nominal Inner Diameter | Piston Seal

Features

• Easy assembly
• Low friction capabilities

Single-lipped, snap-in rod wiper is designed to fit D-style housings.

The ST-XLF wipers are designed to fit the standard ST wiper groove. These wipers include a dust lip to prevent contaminates from entering through the groove. They also have a ribbed inside diameter for low friction operation and to prevent pressure traps between the wiper and rod seal. Developed specifically for use in harsher environments with heavy contamination, such as in agriculture, off-highway, and forestry equipment.

Urethane Material | 3 in Nominal Inner Diameter

Features

• Precision trimmed wiping lip
• Retrofits most ‘D’ wiper housings
• Especially effective in vertically mounted cylinders
• Designed to follow the rod deflection caused by side loads
• Interchangeable with Hallite 520 wiper
• Sharp wiping lip scrapes heavy contamination from rod protecting sealing system
• Umbrella Wiper Technology™ protects housing from contamination and reduces moisture ingress

Single-lipped, snap-in rod wiper is designed to fit D-style housings.

The ST-XLF wipers are designed to fit the standard ST wiper groove. These wipers include a dust lip to prevent contaminates from entering through the groove. They also have a ribbed inside diameter for low friction operation and to prevent pressure traps between the wiper and rod seal. Developed specifically for use in harsher environments with heavy contamination, such as in agriculture, off-highway, and forestry equipment.

Urethane Material | 3 1/2 in Nominal Inner Diameter

Features

• Precision trimmed wiping lip
• Retrofits most ‘D’ wiper housings
• Especially effective in vertically mounted cylinders
• Designed to follow the rod deflection caused by side loads
• Interchangeable with Hallite 520 wiper
• Sharp wiping lip scrapes heavy contamination from rod protecting sealing system
• Umbrella Wiper Technology™ protects housing from contamination and reduces moisture ingress

The Z-Seal™ is a squeeze type seal, combining the excellent sealability and low compression set of a resilient rubber lip with the greater anti-extrusion characteristics of a hard thermoplastic base. Under low pressure conditions, the sealing lip provides its own compressive seal force. As pressure increases, hydrostatic pressure is mechanically transmitted through the elastomeric seal element into the anti-extrusion base. The applied force then deflects radially in a controlled manner, closing the extrusion gap behind the sealing lip. Under this condition, maximum sealing effectiveness is achieved.

95A 70A Durometer | Urethane Nitrile Rubber Material | 1 1/4 in Nominal Inner Diameter | 3/16 in Cross Section | Z-Seal

Asymmetric rod seal designed with precision trimmed sealing lips to provide a dry sealing solution in light and medium-duty applications. The Hallite 605 is molded in Hythane® 181, Hallite’s high-performance polyurethane, for easy installation and excellent low temperature performance. 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. Designed to have interference in the seal housing groove and has a secondary lip. The secondary sealing lip located behind the primary sealing lip improves stability of the seal in the gland. The inner dynamic lip is shorter and more robust to improve sealing and compression set characteristics over conventional, symmetrical U-seals.

The seal can be considered for use in heavy-duty applications when used with a suitable full depth back-up ring. The sealing lips are precision trimmed at an angle to give optimal rod sealing performance.

94A Durometer | Urethane Material | 7/8 in Nominal Inner Diameter | 1/8 in Cross Section | U-Seal

Features

• General purpose rod seal
• Robust design
• Excellent wear resistance
• Increase seal stability
• Performs well over wide temperature range and is extremely effective in low temperatures
• Primary lip protection
• Easy to install

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. Hercules® Sealing Products also offers a wide base (WB) Style PSC piston seal. These wide base seals have the same characteristics of the standard PSC seals but offer a wider base, eliminating the need to use back-up rings to accommodate wider grooves. Piston diameter “I” dimensions are given for piston without wear rings.

95A; 70A Durometer | Polyurethane Material | 1 5/8 in Nominal Inner Diameter | Piston Seal

Features

• Easy assembly
• Low friction capabilities

Ductile head gland made for a cylinder with a 3 in rod and 5 in bore. Machined in USA.

Threads are UN/UNR standard threads.

This head gland has a Regular. Both Regular and Wide bases are available.

Matching seal kit is available for purchase.

Molded in bronze-filled PTFE with an FKM energizer, this seal is used to protect the primary seal from damage caused by pressure spikes and excessive heat build up.

Bronze PTFE Buffer Material | 25 MM Nominal Inner Diameter | Buffer Seal