ROD SEALS
Rod Seals are typically single acting/uni-directional but can also be provided in a double acting/bi-directional configuration if the application demands. Rod seals are normally installed into female glands providing a static seal across the outside diameter and dynamic sealing against a reciprocating piston rod. The main purpose of a rod seal is to prevent leakage of fluid or media into the atmosphere, therefore the correct choice of rod seal is probably the most important factor when designing or repairing a hydraulic or pneumatic cylinder.
DMR offer a wide range of high performance rod seal profiles to provide the best possible solution for a large variety of applications. We can provide you with engineered sealing solutions for applications involving high pressure, low pressure, high speed, high temperature and extreme low temperature. When DMR rod seals are combined with the correct range of wiper seals, guide rings and piston seals you can be assured of leak free, long life performance.
IMPORTANT - Please Note: The data shown below are maximum values and operating ranges and cannot be used at the same time.
For example: The maximum operating speed will depend on material type chosen, working pressure, application temperature and clearance gap values. The temperature range shown is also dependent on choice of material and media to be sealed.
Product Range
| Profile | Name | Operating Range | Summary | |
|---|---|---|---|---|
 | SB01 | Pressure Max: 400 barTemperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | DMR Seals SB01 profile is an asymmetric single acting/uni-directional hydraulic rod u-cup seal. The seal has a shortened dynamic sealing lip which offers improved friction and compression set characteristics in comparison to standard symmetrical u-rings. It has an interference fit along the outside diameter to ensure a stable fit in … | Read More |
 | SB01A | Pressure Max: 400 barTemperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | DMR Seals SB01A profile is an asymmetric single acting/uni-directional hydraulic rod u-cup seal. The seal has a shortened dynamic sealing lip and increased groove depth and groove width which offers increased seal deflection while providing improved friction and compression set characteristics in comparison to standard symmetrical u-rings. It has an … | Read More |
 | SB01B | Pressure Max: 400 barTemperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | DMR Seals SB01B profile is an asymmetric single acting/uni-directional hydraulic rod u-cup seal. The seal has sharp dynamic sealing lips which help provide positive fluid film removal from the reciprocating piston rod. The inner sealing lip has also been reduced in length to provide improved friction and compression set characteristics … | Read More |
 | SB02 | Pressure Max: 700 barTemperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | The SB02 profile is an asymmetric single acting / uni-directional hydraulic rod u-cup seal complete with a pressure activated back-up ring to enable use up to 700 bar as standard and higher if required with the correct choice of back-up ring. The seal has a shortened dynamic lip which provides … | Read More |
 | SB02A | Pressure Max: 700 barTemperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | The SB02A profile is an asymmetric single acting / uni-directional hydraulic rod u-cup seal which is designed for applications where groove space is limited and comes complete with a triangular pressure activated back-up ring to enable use up to 700 bar as standard and higher if required with the correct … | Read More |
 | SB02B | Pressure Max: 400 barTemperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | The SB02B profile is an asymmetric single acting / uni-directional hydraulic rod u-cup seal which is designed to help reduce the frictional footprint of the seal in dynamic applications via the inclusion of a secondary PTFE sealing element within the back heel of the main seal body. Like other asymmetric … | Read More |
 | SB02C | Pressure Max: 700 barTemperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | Our SB02C seal profile is normally used as a primary seal in tandem sealing configurations. It’s aim is to act as a buffer to any sudden pressure spikes within the system and protect the secondary seal from any damage this pressure spike could cause. It is not designed to provide … | Read More |
 | SB03 | Pressure Max: 400 barTemperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | Our SB03 profile is an asymmetric single acting / uni-directional hydraulic rod u-cup seal complete with an O-Ring energizer which is recommended for low pressures, soft start systems or applications where leak free tightness is paramount above all else. The O-Ring energiser in this seal provides further sealing force across … | Read More |
 | SB03A | Pressure Max: 400 barTemperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | Our SB03A profile is an asymmetric single acting / uni-directional hydraulic rod u-cup seal complete with both an O-Ring energizer and multiple sealing lips. The O-Ring energiser helps sealing at low pressures, while the multiple sealing lips provide some sealing redundancy and lubrication reservoirs to help reduce friction in dynamic … | Read More |
 | SB04 | Pressure Max: 700 barTemperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | The SB04 profile is a modification of both our SB02 and SB03 profiles. The inclusion of the pressure activated back-up ring offers extrusion resistance and ensures safe use at higher pressures with the correct choice of back-up ring material. The use of the SB04 profile can also allow the design … | Read More |
 | SB05 | Pressure Max: 25 barTemperature Min: -55 °C Max: 210 °C Speed Max: 2 m/s | The SB05 Profile is used in pneumatic sealing systems where low friction and high-speed sealing performance are critical. The low footprint, radiused sealing lip gathers fluid film and the undercut on the inside diameter locks in initial lubrication, both features are unique in pneumatic rod seal design and help to … | Read More |
 | SB05A | Pressure Max: 25 barTemperature Min: -55 °C Max: 210 °C Speed Max: 1 m/s | The SB05A Profile is for use in pneumatic sealing systems where sealing performance is chosen over frictional output. The radiused sealing lip gathers fluid film to help lower frictional values while the shaft is reciprocating at high speed. The seal is manufactured with an interference fit across the outside diameter … | Read More |
 | SB06 | Pressure Max: 400 barTemperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | The SB06 profile is a symmetrical lipped seal and is commonly used in the repair market as it can function in both rod and piston applications. Although popular, the SB06 is not recommended for new designs or where the user can be sure of the profile required for their application, … | Read More |
 | SB06A | Pressure Max: 400 barTemperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | The SB06A profile is a modification of the more standard SB06 seal. It too is a symmetrical lipped seal and is commonly used in the repair markets as it can function in both rod and piston application, however it has improved groove geometry to allow it to be used in … | Read More |
 | SB07 | Pressure Max: 400 barTemperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | The SB07 profile is a symmetrical lipped O-Ring energised U-Cup seal and is commonly used in the hydraulic repair market as it can function in both rod and piston applications. The O-Ring energiser in this seal provides further sealing force across the sealing lips to ensure leak free performance even … | Read More |
 | SB07A | Pressure Max: 400 barTemperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | The SB07A profile is a symmetrical lipped energised U-Cup seal that provides both primary and secondary sealing functions. The primary elastomeric sealing element provides excellent dry rod sealing performance and is commonly used in both safety and environmentally critical applications where rod seal leakage could be catastrophic. The main U-Cup … | Read More |
 | SB07Q | Pressure Max: 400 barTemperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | The SB07Q is a modification of our standard SB07 profile and has been designed to help provide a more positive sealing effect directly to the main seal lips. The X-Ring energiser used in this seal is less susceptible to being blown out from the energiser cavity as can sometimes happen … | Read More |
 | SB08 | Pressure Max: 400 barTemperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | The SB08 profile has been designed for applications where the O-Ring energised profiles such as SB03 and SB07 cannot be used due to radial gland space being tight. The SB08 operates in low pressure or soft start situations where the hydraulic system takes time to work up to full working … | Read More |
 | SB09 | Pressure Max: 600 bar Temperature Min: -50 °C Max: 210 °C Speed Max: 10 m/s | Profile SB09 is a compact single acting / uni-directional composite Rod Seal which consists of a either a main PTFE or Hard PU sealing element and an elastomeric O-Ring energiser. The O-Ring energises the sealing element and provides an effective leak free barrier around the outside diameter of the seal … | Read More |
 | SB09A | Pressure Max: 600 bar Temperature Min: -50 °C Max: 210 °C Speed Max: 10 m/s | Profile SB09A is a heavy duty compact single acting / uni-directional composite Rod Seal which consists of a either a main PTFE or Hard PU sealing element and an elastomeric square section energiser. The energiser provides positive compression onto the sealing element and provides an effective leak free barrier around … | Read More |
 | SB09B | Pressure Max: 600 barTemperature Min: -50 °C Max: 210 °C Speed Max: 10 m/s | Profile SB09B is a compact double acting /bi-directional rod composite seal which consists of a either a main PTFE or Hard PU sealing element and an elastomeric O-Ring energiser. The O-Ring energises the sealing element and provides an effective leak free barrier around the outside diameter of the seal groove. … | Read More |
 | SB09C | Pressure Max: 600 barTemperature Min: -50 °C Max: 210 °C Speed Max: 10 m/s | Profile SB09C is a heavy duty compact double acting / bi-directional composite Rod Seal which consists of a either a main PTFE or Hard PU sealing element and an elastomeric square section energiser. The energiser provides positive compression onto the sealing element and provides an effective leak free barrier around … | Read More |
 | SB09D | Pressure Max: 600 barTemperature Min: -50 °C Max: 210 °C Speed Max: 10 m/s | Our SB09D profile is a modification of our standard SB09 seal where the geometry of the dynamic sealing lip on the inside diameter has been altered to help prevent damage to the lips at the point of installation. It is a compact single acting / uni-directional composite Rod Seal which … | Read More |
 | SB09E | Pressure Max: 600 barTemperature Min: -50 °C Max: 210 °C Speed Max: 10 m/s | Profile SB09E is a modification of our standard SB09B profile. The side walls of the seal are tapered away from the groove walls and the clearance gap between the mating hardware. This feature helps the seal withstand higher pressures than the normal deign or allows the design engineer freedom to … | Read More |
 | SB11 | Pressure Max: 400 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | Profile SB11 is the intermediate chevron packing ring from our SB112 profile. It can be used individually in certain circumstances where the profiled female support ring may already be profiled as part of the metallic hardware. This is sometimes appropriate in older hardware and fluid sealing systems such as presses … | Read More |
 | SB112 | Pressure Max: 500 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | The SB112 chevron packing set is an old and trusted sealing solution. The design of this set provides automatic pre-load which means the engineer doesn’t have to make manual adjustments to the seal gland which is common when using rubber & fabric packing sets. The intermediate V-rings are stacked … | Read More |
 | SB112A | Pressure Max: 315 bar Temperature Min: -200 °C Max: 260 °C Speed Max: 1.5 m/s | Commonly used as a stem seal on control valves, the SB112A is a multipart Chevron sealing set which can be manufactured from several our high-performance PTFE or modified PTFE compounds. The set comprises of a male pressure ring, several intermediate V-Rings and a female header/support ring. The female header/support ring … | Read More |
 | SB112A-MS | Pressure Max: 315 bar Temperature Min: -200 °C Max: 260 °C Speed Max: 1.5 m/s | The SB112A-MS is a modification on its sister seal the SB112A and our recommendation for valve stem seals using live-loading. This new profile has the benefit of having a modified geometry allowing the seal set to include more intermediate chevron V’s within the same groove length. The extra sealing rings … | Read More |
 | SB112B | Pressure Max: 500 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | The SB112B chevron packing set has been specifically modified to improve the frictional footprint of the intermediate sealing V’s. A simple lubrication reservoir has been added into the side wall of the sealing element to aid lubrication in long stroke or high-frequency applications. The design of this set provides automatic … | Read More |
 | SB112C | Pressure Max: 500 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | The SB112C chevron packing set is a retrofit sealing solution for a very old rubber-fabric seal design commonly called the SEA Ring. We do not recommend this seal design and where permitted; we would recommend it be changed to a more standard sealing design like our SB112 profile. The design … | Read More |
 | SB112D | Pressure Max: 500 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | The SB112D chevron packing set has been specifically modified to provide a “dry rod” sealing function and is a great choice where sealing function is paramount. The addition of the profiled energised seal at the base of the pack provides increased sealing ability and is an excellent addition should the … | Read More |
 | SB112E | Pressure Max: 600 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | The SB112E chevron packing set has been modified with radiused intermediate chevron rings to improve high-pressure sealing. The design of this set provides automatic pre-load which means the engineer doesn’t have to make manual adjustments to the seal gland or crush the seal which is common when using older rubber … | Read More |
 | SB11A | Pressure Max: 100 bar Temperature Min: -200 °C Max: 260 °C Speed Max: 1.5 m/s | Profile SB11A is the intermediate PTFE chevron packing ring from our SB112A and SB112-MS profiles. It can be used individually in certain circumstances where the profiled female support ring may already be profiled as part of the metallic hardware. This is sometimes appropriate in older hardware and fluid sealing systems … | Read More |
 | SB11B | Pressure Max: 400 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | Profile SB11B is the intermediate chevron packing ring from our SB112B profile. It can be used individually in certain circumstances where the profiled female support ring may already be profiled as part of the metallic hardware. This is sometimes appropriate in older hardware and fluid sealing systems such as presses … | Read More |
 | SB11C | Pressure Max: 400 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | Profile SB11C is the intermediate C-shaped chevron packing ring from our SB112C profile and is commonly known as a SEA Ring. It can be used individually in certain circumstances where the profiled female support ring may already be profiled as part of the metallic hardware. This is sometimes appropriate in … | Read More |
 | SB11D | Pressure Max: 400 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | Profile SB11D is the profiled O-Ring energised seal from our SB112D profile and is commonly used where dry rod sealing is a must when using chevron type packing sets. It can be used individually in certain circumstances where the profiled female support ring may already be profiled as part of … | Read More |
 | SB11E | Pressure Max: 400 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | Profile SB11E is the intermediate high-pressure chevron packing ring from our SB112E profile and is commonly used in high-pressure applications such as pressure washers. It can be used individually in certain circumstances where the profiled female support ring may already be profiled as part of the metallic hardware. This is … | Read More |
 | SB17 | Pressure Max: 400 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | The SB17 profile is a high-performance modification of our standard SB01 rod seal and is commonly used in telescopic hydraulic cylinders. The inclusion of a secondary sealing lip situated toward the front of the seal makes this seal a good choice where improved sealing performance may be required. The secondary … | Read More |
 | SB17A | Pressure Max: 400 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | The SB17A profile has a modified sealing lip geometry with increased compression to provide positive sealing in low-pressure or soft-start hydraulic systems. The secondary sealing lip not only provides redundant sealing behind the primary sealing lip, but also helps retain initial installation lubrication creating a reservoir between the pair … | Read More |
 | SB17B | Pressure Max: 700 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | The SB17B profile is a modification of our standard SB17 rod seal. This profile not only has the inclusion of a secondary sealing lip situated toward the front of the seal, but it also includes an anti-extrusion ring to enable its use at higher pressures or where large hardware clearance … | Read More |
 | SB17C | Pressure Max: 700 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | The SB17C profile has a modified sealing lip geometry with increased compression to provide positive sealing in low-pressure or soft-start hydraulic systems while also including an anti-extrusion / back-up ring for sealing at higher pressures or where hardware clearance gaps are present. The secondary sealing lip not only provides … | Read More |
 | SB18 | Pressure Max: 400 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | Our SB18 profile is an asymmetric single acting / uni-directional hydraulic rod u-cup seal complete with a secondary sealing lip and an O-Ring energizer which is recommended for low pressures, soft start systems or applications where leak free tightness is paramount above all else. The O-Ring energiser in this seal … | Read More |
 | SB18A | Pressure Max: 400 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | Our SB18A profile is a modification of the standard SB18 O-Ring energised U-Cup seals profile and includes a secondary sealing lip on both its inside and outside diameters. The O-Ring energiser in this seal provides further sealing force across the sealing lips to ensure leak free performance even at low … | Read More |
 | SB19 | Pressure Max: 400 bar Temperature Min: -200 °C Max: 260 °C Speed Max: 15 m/s | The SB19 seal is primarily intended for dynamic applications where reciprocating movement is present but can also be used in static applications where large gland tolerances exist or where there is a need for higher deflection due to expansion caused by high pressure duty. The seal consists of a U-shaped … | Read More |
 | SB20 | Pressure Max: 2000 bar Temperature Min: -50 °C Max: 210 °C Speed Max: 0.5 m/s | Originally designed for use as a retrofit for standard O-Rings and Back-Ups, the SB20 is an excellent all-round performer and the seal of choice where a compact double acting/bi-directional seal is required for either static or slow-moving applications. Profile SB20 excels in both low and high-pressure applications while also having … | Read More |
 | SB20-AES | Pressure Max: 700 bar Temperature Min: -50 °C Max: 210 °C Speed Max: 0.5 m/s | DMR Seals SB20-AES profile is a double acting (Bi-Directional) Springseal that was primarily designed for static applications in the Oil and Gas industry and is commonly referred to as the S-Seal. The seal is comprised of an elastomeric sealing element complete with unique over-moulded metallic anti-extrusion springs to help it … | Read More |
 | SB20-ILS | Pressure Max: 1000 bar Temperature Min: -50 °C Max: 210 °C Speed Max: 0.5 m/s | DMR Seals SB20-ILS profile is a double acting (Bi-Directional) seal commonly referred to as the Interlocking T-Seal and was primarily designed for wellhead applications and downhole tools used within the Oil and Gas industry. The seal is comprised of an elastomeric sealing element complete with unique locked-in thermoplastic anti-extrusion rings … | Read More |
| SB20-LF | Pressure Max: 1000 bar Temperature Min: -50 °C Max: 210 °C Speed Max: 0.5 m/s | Profile SB20-LF is similar to our standard SB20 profile but has been modified for use in applications requiring a lower frictional footprint while still providing a positive sealing action. Due to the modified compression on the SB20-LF, it is best suited to dynamic applications operating in both low and high-pressure … | Read More |
 | SB20A | Pressure Max: 2000 bar Temperature Min: -50 °C Max: 210 °C Speed Max: 0.5 m/s | The SB20A is a single acting / uni-directional seal used for both static and dynamic applications and is designed to be installed into common international sized O-Ring grooves. Profile SB20A excels in both low and high-pressure applications while also having the ability to operate at both high and low temperatures … | Read More |
| SB20A-LF | Pressure Max: 1000 bar Temperature Min: -50 °C Max: 210 °C Speed Max: 0.5 m/s | Profile SB20A-LF is similar to our standard SB20A profile but has been modified for use in applications requiring a lower frictional footprint while still providing a positive sealing action. Due to the modified compression on the SB20A-LF, it is best suited to dynamic applications operating in both low and high-pressure … | Read More |
 | SB22 | Pressure Max: 400 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | SB22 is a pressure activated packing set that comprises of a main U-ring sealing element and a male pressure/support ring. The main U-Ring sealing element is designed to provide initial sealing force across the sealing faces upon installation. Sealing force is increased under system pressure through the pressure/support ring being … | Read More |
 | SB24 | Pressure Max: 700 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | Commonly used in heavy duty agricultural, mobile plant and mining hydraulic applications, the SB24 is the first-choice rod seal where harsh operating conditions exist or where extreme pressure spikes exist in hydraulic systems. The SB24 is a hybrid seal which takes the designs of various seals to provide a complete … | Read More |
 | SB24A | Pressure Max: 700 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | Commonly used in the mining industry in vertical hydraulic cylinder applications, the SB24A is the first-choice rod seal where harsh operating conditions and/or where extreme pressure spikes exist in hydraulic systems. The SB24A is a hybrid seal which takes the designs of various seals to provide a complete all-round performer … | Read More |
 | SB25 | Pressure Max: 400 bar Temperature Min: -200 °C Max: 260 °C Speed Max: 1 m/s | SB25 profile is a heavy-duty spring energised seal commonly used in heavy industry such as steel plants as a good replacement for rubber fabric seals that fail due to compatibility issues. The seal requires a 2-piece housing for installation purposes and correct function. The helical spring energiser within the seal … | Read More |
 | SB35 | Pressure Max: 400 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | Our SB35 profile is a good choice when a compact seal which can be utilised in both static and slow-moving applications. It is commonly used as a direct replacement for O-Rings and Back-up rings in static applications due to its ability to resist rolling and twisting in the groove at … | Read More |
 | XB54 | Pressure Max: 400 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s | The XB54 profile is a symmetrical lipped solid seal that can function in both rod and piston applications and is normally only used in the hydraulic repair market where a seal with extreme compression is required to prevent leakage. This seal is not recommended for new applications due to the … | Read More |
 | XB61 | Pressure Max: 400 bar Temperature Min: -50°C Max: 110°C Speed Max: 0.7 m/s | XB61 is a double acting / bi-directional compact hydraulic rod seal produced in a choice of our high-performance polyurethane materials. The seal incorporates an elastomeric O-Ring energiser to provide pre-load for initial sealing at low and start-up pressures. The unique design helps protects the O-Ring from possible damage caused at … | Read More |
 | XB63 | Pressure Max: 350 bar Temperature Min: -50°C Max: 210°C Speed Max: 15 m/s | XB63 is a double acting / bi-directional seal designed for hydraulic and pneumatic dynamic applications and to be installed and operate in standard AS4716 O-Ring and Back-up Ring groove sizes. The seal provides good low-friction dry running properties and reduces stick-slip in operation while being a compact design, which make … | Read More |