-
SEAL RETAINER CROSS REFERENCE Hercules Sealing Prefix Ramsey Spirolox Prefix VS- US- WS- RS- WST- RSN- WSM- RST- -
Our vee sets are the finest quality available in the industry. While all sets incorporate fabric reinforced rubber pressure rings, one or two urethane rings are included to improve low pressure sealing, when it is feasible. Most sets use nylon adaptors. Properly installed the pressure limits are as follows: 3,000 PSI = 4 VEES 5,000 PSI = 5 VEES 10,000 PSI = 6 VEES CONSTRUCTION CODE Example: FA-2U-3F-MA FA - 1 TOP ADAPTOR 2U - 2 URETHANE VEE RINGS 2F - 2 FABRIC VEE RINGS MA - 1 BOTTOM ADAPTOR V= FLUOROCARBON U= SPECIAL URETHANE VEE H= HYTREL W= WIPER INCLUDEDSEAL INFORMATION MATERIAL FABRIC REINFORCED RUBBER
URETHANE RING/NYLON ADAPTORSTEMPERATURE RANGE -35° to +220° F PRESSURE RANGE 0 to 10,000 PSI SPEED 1.5 FT/SEC PART NUMBER (Type of Seal) (ID) (CS) X (Height) -
The individual vee rings and adaptors listed here are the same high quality product found in our assembled vee packing sets. Stocking individual vee rings allows you to assemble sets to your specific requirements.
RING TYPES
T = TOP ADAPTOR - NYLON
B = BOTTOM ADAPTOR - NYLON/ NEO-FAB
F = NEO-FAB VEE RING
U = URETHANE VEE RING
R = RUBBER VEE RING.
(FOR MORE RUBBER VEE RINGS SEE OUR STYLE 835 RINGS)
SEAL INFORMATION MATERIAL NYLON, NEO-FAB URETHANE TEMPERATURE RANGE -35° to +220° F PRESSURE RANGE 0 to 5,000 PSI SPEED 1.5 FT/SEC PART NUMBER (Prefix) - (ID) (CS) (Type of Ring) -
SEAL RETAINER CROSS REFERENCE Hercules Sealing Prefix Ramsey Spirolox Prefix VH- UR- WH- RR- WHM- RRN- WHT- RRT- -
Style UPU Premium U-Seals are molded from ultra tough urethane for severe service conditions. They feature higher tensile strength and modulus for extrusion resistance. These seals are used in high energy services such as rock drills and shock absorbing devices where high internal heat is generated.SEAL INFORMATION MATERIAL 93A URETHANE TEMPERATURE RANGE -65° to +300° F PRESSURE RANGE 0 to 5,000 PSI SPEED 3 FT/SEC PART NUMBER (Prefix)(CS) - (Inside Dia) - (Height) 
Standard - Height and cross section are equal, thus giving a square seal. Utilizes type 'D' lip. Typical Part Number UPU25-2.50 
Deep - Utilizes the same 'D' lip, but the seal height is greater than the cross section, thus giving a rectangular shape. Typical Part Number UPU25-2.50-37D 
Type SQB - Same dimensions as the Standard seal. Beveled lip design provides better film breaking. Utilizes type 'B' lip. Typical Part Number UPU25-2.50-SQB 
Type B - Same dimensions as the Deep seal. Beveled lip design provides better film breaking. Utilizes type 'B' lip. Typical Part Number UPU25-2.50-37B -
UKR u-seals are designed to act as a positive sealing, low friction replacement for conventional rubber u-seals. Molded from polyurethane, UKR u-seals provide long life and high resistance against extrusion. Low friction allows these seals to run smoothly in lubricated or non-lucricated cylinder. Available for rod sealing, the flexible dynamic lip provides very low breakaway friction and steady motion. -
UKP u-seals are designed to act as a positive sealing, low friction replacement for conventional rubber u-seals. Molded from polyurethane, UKP u-seals provide long life and high resistance against extrusion. Low friction allows these seals to run smoothly in lubricated or non-lubricated cylinder. Available for bore sealing, the flexible dynamic lip provides very low breakaway friction and steady motion. -
Incorporating a rubber seal lip and a rubberized fabric heel, this seal provides excellent sealability and high strength.SEAL INFORMATION MATERIAL RUBBER & FABRIC TEMPERATURE RANGE -22° to +212° F PRESSURE RANGE 0 to 2,900 PSI SPEED 1.5 FT/SEC PART NUMBER (Prefix)(CS) - (Inside Dia) - (Height) -
Incorporating a rubber seal lip, a rubberized fabric heel and an acetal back-up ring. This seal provides excellent sealability and high extrusion resistance. -
Constructed of a rubber seal lip with a rubberized fabric heel, these seals feature a poly-acetal bearing ring or a poly-acetal anti-extrusion ring. These seals offer excellent sealing ability and high pressure capability. Commonly are used with the SR retention rings. -
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.SEAL INFORMATION MATERIAL 95A URETHANE
70A NITRILE RUBBERTEMPERATURE RANGE -40° to +200° F PRESSURE RANGE 0 to 5,000 PSI SPEED 3 FT/SEC PART NUMBER (Prefix)(CS) - (Inside Dia) - (Height) 
Suffix:
ZF = Fluorotrel (-40° to +235° F)
ZL = Low Temperature Nitrile Sealing Lip
(-65° to +200° F)
ZLF = (-65° to +200° F) -
Style 800 U-seals are molded from tough, abrasion-resistant polyurethane. The four lobed expander ring energizes the sealing lips, even at zero pressure, to help prevent 'weeping' when the system is idle.FLUOROCARBON = "V"
SEAL INFORMATION MATERIAL 95A URETHANE | 95A FLUOROCARBON TEMPERATURE RANGE -65° to +220° F | -20° to +400° F PRESSURE RANGE 0 to 5,000 PSI | 0 to 2,000 PSI SPEED 3 FT/SEC PART NUMBER (Prefix)(CS) - (Inside Dia) - (Height) Standard - Height and cross section are equal, thus giving a square seal. Utilizes type 'D' lip. Typical Part Number U25-2.50 Deep - Utilizes the same 'D' lip, but the seal height is greater than the cross section, thus giving a rectangular shape. Typical Part Number U25-2.50-37D Type SQB - Same dimensions as the Standard seal. Beveled lip design provides better film breaking. Utilizes type 'B' lip. Typical Part Number U25-2.50-SQB Type B - Same dimensions as the Deep seal. Beveled lip design provides better film breaking. Utilizes type 'B' lip. Typical Part Number U25-2.50-37B -
Intermediate and Wide Base T-Seals are designed to fit MIL-5514F o-ring glands only and interchange with 1 o-ring / 1 back-up ring and 1 o-ring / 2 back-up ring grooves, respectively.
SEAL INFORMATION MATERIAL BUNA-N RUBBER SEAL - HARD PLASTIC BACK-UPS TEMPERATURE RANGE -35° to +220° F PRESSURE RANGE 0 to 5,000 PSI SPEED 3 FT/SEC PART NUMBER (Prefix) - (Size) -
The Style TP-L seal is a zero drift piston seal for bi-directional pressure applications. The locking anti-extrusion rings provide for an easier installation. It is designed to retrofit O-Ring and standard T-seal grooves. The 70 shore A NBR is designed specifically for performance in compression type dynamic seals. Other features include a net molded dynamic sealing surface and backup chamfers.
SEAL INFORMATION MATERIAL BUNA-N RUBBER SEAL - HARD PLASTIC BACK-UPS TEMPERATURE RANGE -35° to +220° F PRESSURE RANGE 0 to 5,000 PSI SPEED 3 FT/SEC PART NUMBER (Prefix) - (Size) -
T-Seals are non-spiraling and extrusion resistant to 5,000 psi with improved tolerances.
IB = Intermediate Base, WB = Wide Base
Intermediate and Wide Base T-Seals are designed to fit MIL-5514F o-ring glands only and interchange with 1 o-ring / 1 back-up ring and 1 o-ring / 2 back-up ring grooves, respectively.SEAL INFORMATION MATERIAL BUNA-N RUBBER SEAL - HARD PLASTIC BACK-UPS TEMPERATURE RANGE -35° to +220° F PRESSURE RANGE 0 to 5,000 PSI SPEED 3 FT/SEC PART NUMBER (Prefix) - (Size) -
SEAL INFORMATION MATERIAL BUNA-N TEMPERATURE RANGE -22° to +212° F SPEED 3 FT/SEC PART NUMBER (Prefix) (Size) -
SEAL INFORMATION MATERIAL BUNA-N TEMPERATURE RANGE -22° to +212° F SPEED 3 FT/SEC PART NUMBER (Prefix) (Size) -
SEAL INFORMATION MATERIAL BUNA-N TEMPERATURE RANGE -22° to +212° F SPEED 3 FT/SEC PART NUMBER (Prefix) (Size) -
STXE wipers are designed to retrofit the standard ST wiper groove while providing superior performance. The o-ring energizer limits dirt intrusion around the O.D. of the wiper. The energizer also makes this wiper more effective in applications with severe side deflections.
SEAL INFORMATION MATERIAL URETHANE WIPER
RUBBER ENERGIZERTEMPERATURE RANGE -40° to +220° F SPEED 3 FT/SEC PART NUMBER (Prefix) - (Size) -
Style ST-XL wipers are molded from premium urethane and are direct replacements for Style 'ST' or 'D' wipers. The outside diameter of the ring has a crush lip providing extra interference in the groove. A bead on the shoulder stops contaminants from entering through the groove. The inside diameter is ribbed to prevent pressure traps between the wiper and rod seal.
SEAL INFORMATION MATERIAL 94A URETHANE TEMPERATURE RANGE -40° to +230° F SPEED 3 FT/SEC PART NUMBER (Prefix) - (Size) - (Extra Lip) -
A wide range of ST wipers are now offered in the slotted heel design. The slots in the heel allow excess hydraulic fluid to bypass the wiper, preventing wiper blowout.
SEAL INFORMATION MATERIAL 90A URETHANE TEMPERATURE RANGE URETHANE: -40° to +200° F SPEED 3 FT/SEC PART NUMBER (Prefix) - (Size) - (Slotted Heel) -
Style ST-E is a light to medium duty urethane wiper ring with a square shoulder, similar to our standard ST style wipers but with different dimensions.
SEAL INFORMATION MATERIAL URETHANE TEMPERATURE RANGE -31° to +212° F SPEED 3 FT/SEC PART NUMBER (Prefix) - (Size) -
Style ST wiper rings are precision molded from 90A durometer urethane. Flexible enough to easily snap into a groove yet tough enough to handle difficult rod wiping applications. 'V' tagged wipers are constructed of fluorocarbon.
Product Codes ending in SH are designed with a Slotted Heel. The slots in the heel allow excess hydraulic fluid to bypass the wiper, preventing wiper blowout.
SEAL INFORMATION MATERIAL URETHANE / FLUOROCARBON TEMPERATURE RANGE URETHANE: -40° to +200° F
FLUOROCARBON: -20° to +400° FSPEED 3 FT/SEC PART NUMBER (Prefix) - (Size) - (Alternative Mat.) -
U-Seal Retainer Ring
These rings are split for ease of installation and are retained in a groove. Their use is primarily to retain a single acting piston seals. Commonly used with UFN style piston seals.SEAL INFORMATION MATERIAL ACETAL TEMPERATURE RANGE -22 ° TO +212°F -
IRON PISTON RINGS
When using iron piston rings, it is crucial to use the correct groove design for proper performance of the cylinder. Please use the following guidelines when cutting an iron piston ring groove- GROOVE WIDTH:
- To permit the ring to slide freely into the groove, the groove must be at least 0.001 in. wider than the maximum piston ring width with a tolerance of +0.003 in./-0.000 in.
- GROOVE DEPTH:
- Grooves must be at least 0.015 in. deeper than the maximum radial wall thickness of the piston ring with a tolerance of +0.003 in./-0.000 in. This is to avoid any possibility of the ring bottoming in the groove when the ring is compressed to its working diameter.
- RADIAL CLEARANCE:
- The radial clearance between the cylinder bore and piston should be less than 1/3 of the radial wall thickness of the piston ring to ensure sealing effectiveness.
SEAL INFORMATION MATERIAL IRON PART NUMBER (Prefix) - (OD) BC = Butt Cut H = Hook Joint END CLEARANCE
End clearance on piston rings depends on ring design, material and application. The following end clearances are provided as a standard for hydraulic cylinder applications.DIAMETER BUTT & ANGLE CUT END CLEARANCE OVERLAPPING JOINT & STEP CUT CLEARANCE .500 - 4.561 .003/.010 .005/.015 4.562 - 19.97 .005/.015 .010/.020 19.971 - 30.5 .010/.025 .015/.030 -
SG - 'Seal Guard' Metallic Rod
Each Seal Guard Wiper consists of two flexible bronze rings which are held in place by a nitrile cushion ring. The cushion ring absorbs side loads and energizes the wiper to maintain close contact with the rod. Particularly suited for hostile environments, seal guard wipers shave off sand, grift, slag, flux, paint, moisture, chips and slivers. Seal Guard Wipers are long-lasting, self-adjusting, and offer low friction. Seal Guard Wipers can be installed in standard HerculesÂź Sealing Products âSTâ or âDâ Style grooves by increasing the âFâ gland dimension to the âFâ Throat Diameter shown.SEAL INFORMATION MATERIAL 660 BRONZE
70A NITRILETEMPERATURE RANGE -40° to +240° F PART NUMBER (Prefix) - (Size) -
SFS SPLIT FLANGE SEALS
FOR 4-BOLT SPLIT FLANGE CONNECTORS
Flange seals are a one piece dual durometer urethane static seal. The black outer part is a tough, extrusion resistant 95 Durometer and the yellow inner layer is 57 Durometer that has low compression set and excellent sealing properties. These seals are a direct replacement for o-rings and do not require modification to any split flange groove.SEAL INFORMATION MATERIAL URETHANE TEMPERATURE RANGE -40° TO +200°F PRESSURE RANGE 0 TO 3000 PSI SPEED STATIC PART NUMBER (Prefix) - (Dash No.) -
Style RU9 seals are molded from MDI based ZurconŸ Z25 urethane. This seal offers good elasticity with low compression set while maintaining a high level of tribological characteristics. The dynamic seal lip incorporates slide segments that will increase back-pumping capabilities while reducing friction. The RU9 style rod seal is ideal for hydraulic applications where high temperature and high pressure performance is required.SEAL INFORMATION MATERIAL 95A URETHANE TEMPERATURE RANGE -31° to +270° F PRESSURE RANGE 0 to 5,800 PSI SPEED 1.65 FT/SEC PART NUMBER (Prefix)(CS) - (ID) - (Height) MAXIMUM EXTRUSION GAP PRESSURE 1000 PSI 3000 PSI 5000 PSI 6000 PSI MAX DIAM. GAP 0.032" 0.015" 0.012" 0.009" -
Style RU seals are molded from high quality urethane and designed specifically for rod applications. P = HIGH PERFORMANCE MATERIAL UP TO +275° F -
Molded from high performance polyurethane, Style RTUL Rod U-Seals feature an expander for good low pressure sealing. The twin lip feature reduces friction and promotes stability. NOTE: RTUSL has a canted coil energizer. -
Featuring high pressure and high shock load capability, this seal utilizes the same twin lip design found in Hercules Sealing Products' RTU style. With the main body of the seal molded from high performance polyurethane, this seal incorporates a dynamically designed nitrile energizer and a tough polyacetal anti-extrusion ring. RTUB is capable of pressures up to 10,000 psi in approved applications. Please consult Hercules Engineering for pressures above 6,000 psi. MAXIMUM EXTRUSION GAP PRESSURE/MAX. DIAM. GAP: |2,400 PSI/.040| Â |3,750 PSI/.032| |6,000 PSI/.024| Â | 7,500 PSI/.016| Â |10,000 PSI/.010|
