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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 | 3 5/8 in Nominal Inner Diameter | Piston Seal
Features
- Easy assembly
- Low friction capabilities
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 | 1 3/8 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
WBS, 1 1/2 X .125 Wear Strip POLYRESIN
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.
70 Durometer | Buna-N Rubber Material | 1/4 in Nominal Inner Diameter | 1/16 in Cross Section | O-Ring
Features
- Pressure range varies according to diametral clearance
- Temperature range of -40 °F to -240 °F
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.
70 Durometer | Buna-N Rubber Material | 9/16 in Nominal Inner Diameter | 1/16 in Cross Section | O-Ring
Features
- Pressure range varies according to diametral clearance
- Temperature range of -40 °F to -240 °F
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.
70 Durometer | Buna-N Rubber Material | 1/2 in Nominal Inner Diameter | 3/32 in Cross Section | O-Ring
Features
- Pressure range varies according to diametral clearance
- Temperature range of -40 °F to -240 °F
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.
70 Durometer | Buna-N Rubber Material | 6 in Nominal Inner Diameter | 3/32 in Cross Section | O-Ring
Features
- Pressure range varies according to diametral clearance
- Temperature range of -40 °F to -240 °F
Hydrogenated Nitrile Rubber (HNBR), also known as Highly Saturated Nitrile (HSN), is a compound with superior heat, ozone, chemical resistance, tensile strength and abrasion resistance over natural rubber. HNBR provides excellent service life in most sealing applications such as oilfield, automotive and refrigerants.
70 Durometer | Highly Saturated Nitrile Material | 1 5/8 in Nominal Inner Diameter | 1/8 in Cross Section | O-Ring
Features
- Chemical resistance
- Tensile strength
- Abrasion resistance
- Excellent service life in most sealing applications such as oilfield, automotive and refrigerants
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.
90 Durometer | Buna-N Rubber Material | 2 1/2 in Nominal Inner Diameter | 1/8 in Cross Section | O-Ring
Features
- Pressure range varies according to diametral clearance
- Temperature range of -40 °F to -240 °F
Parback® backup ring with a curved cross-section.
Parbaks are contoured on one face to minimize distortion of the o-ring when under pressure. Parbaks should be installed with the contoured face against the o-ring, but reversal does no harm.
90A Durometer | Buna-N Rubber Material | 1 5/8 in Nominal Inner Diameter | 3/16 in Cross Section | Backup Ring
Features
- Excellent extrusion resistance
- Easily stretched for installation
- Lubrication is enhanced by rubber which absorbs system fluid and does not plate out on rubbing surfaces
