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Static seals

Static seals

Static seals are used to prevent fluid leakage between stationary components in hydraulic and pneumatic systems. Unlike dynamic seals, static seals do not move relative to each other but must resist high pressure and maintain sealing integrity over time.

Backup rings support primary sealing elements like O-rings by preventing their extrusion under pressure. These rings are typically made from hard polymers such as PTFE or nylon, increasing the durability of the sealing system.

Static sealing rings provide tight sealing between fixed parts such as flange connections or valve seats. They can be made from elastomers, plastics, or composites depending on the application requirements.

Key features include high resistance to extrusion and deformation, compatibility with various fluids and temperatures, and precise dimensions to ensure reliable sealing.

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Hydraulic seals dimension
Rod diameter d (mm)
Groove Diameter d (mm)
Groove Diameter D (mm)
Seal width h (mm)
O-ring dimension
Inside diameter
Cross section
Details
Seal type
Manufacturers
Manufacturers
38
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32
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25
Photo Code Name Producer Stock
Static seal SSA 19x16,6x3,1 [2ESSA052] SSA 0190 0166 031 C0 Static seal SSA 19x16,6x3,1 [2ESSA052] Artic seals 6 weeks
Static seal VSS 19,41x22,20x3,51 PU VSS 0222 0194 035 C0 Static seal VSS 19,41x22,20x3,51 PU Artic seals 150
Usit Ring US-10 19,69x26,92x2,34 NBR 48001529 Usit Ring US-10 19,69x26,92x2,34 NBR OEM 8
Back up ring AM 20x25x1,3 48005646 Back up ring AM 20x25x1,3 Aston seals request
Back up ring AP 20,29x2,62 48005755 Back up ring AP 20,29x2,62 Aston seals 66
Back up ring AP 20,35x1,78 48005731 Back up ring AP 20,35x1,78 Aston seals 58
Back up ring AP 20,63x2,62 48005756 Back up ring AP 20,63x2,62 Aston seals 58
Back up ring K81 20x25x1,3 K81-020 Back up ring K81 20x25x1,3 Kastas 25
Back up ring K81 20x30x1,3 K81-020/1 Back up ring K81 20x30x1,3 Kastas 18
Back up ring MAE 20x25x1,2 L1 MAE 0200 0250 012 L1 Back up ring MAE 20x25x1,2 L1 Artic seals 6 weeks
Back up ring MAE 20x25x1,3 L1 MAE 0200 0250 013 L1 Back up ring MAE 20x25x1,3 L1 Artic seals request
Back up ring RAE 20,22x3,53 L1 [2ERAE337] RAE 02022 00353 L1 Back up ring RAE 20,22x3,53 L1 [2ERAE337] Artic seals 92
Back up ring RAE 20,29x2,62 L1 [2ERAE157] RAE 02029 00262 L1 Back up ring RAE 20,29x2,62 L1 [2ERAE157] Artic seals 6 weeks
Back up ring RAE 20,35x1,78 L1 [2ERAE041] RAE 02035 00178 L1 Back up ring RAE 20,35x1,78 L1 [2ERAE041] Artic seals 6 weeks
Back up ring RAE 20,63x2,62 L1 [2ERAE161] RAE 02063 00262 L1 Back up ring RAE 20,63x2,62 L1 [2ERAE161] Artic seals 6 weeks
Flange seal 20,2x28,6x2,85 PU A402 PU A402-020,20 Flange seal 20,2x28,6x2,85 PU A402 PU ALP 480
Static seal K83 20,5x25x4 PU K83-020/1 PU Static seal K83 20,5x25x4 PU Kastas 14
Static seal SSA 20,6x17,8x3,5 [2ESSA062] SSA 0206 0178 035 C0 Static seal SSA 20,6x17,8x3,5 [2ESSA062] Artic seals 6 weeks
Static seal SSA 20x16,6x3,4 [2ESSA057] SSA 0200 0166 034 C0 Static seal SSA 20x16,6x3,4 [2ESSA057] Artic seals 6 weeks
Static seal SSA 20x16x3,2 [2ESSA056] SSA 0200 0160 032 C0 Static seal SSA 20x16x3,2 [2ESSA056] Artic seals 6 weeks
Static seal SSA 20x17,4x3,4 [2ESSA060] SSA 0200 0174 034 C0 Static seal SSA 20x17,4x3,4 [2ESSA060] Artic seals 6 weeks
Static seal SSA 20x17,4x3,8 [2ESSA061] SSA 0200 0174 038 C0 Static seal SSA 20x17,4x3,8 [2ESSA061] Artic seals 6 weeks
Static seal US 20,7x29x2 NBR 48005027 Static seal US 20,7x29x2 NBR OEM 61
Static seal US 20,7x29x2 NBR 999383 Static seal US 20,7x29x2 NBR OEM 61
Static seal VSS 20,98x23,77x3,51 PU VSS 0237 0210 035 C0 Static seal VSS 20,98x23,77x3,51 PU Artic seals 6 weeks
Back up ring AP 21,89x2,62 48005757 Back up ring AP 21,89x2,62 Aston seals 70
Back up ring AP 21,95x1,78 48005732 Back up ring AP 21,95x1,78 Aston seals 66
Back up ring RAE 21,82x3,53 L1 [2ERAE341] RAE 02182 00353 L1 Back up ring RAE 21,82x3,53 L1 [2ERAE341] Artic seals 6 weeks
Back up ring RAE 21,89x2,62 L1 [2ERAE165] RAE 02189 00262 L1 Back up ring RAE 21,89x2,62 L1 [2ERAE165] Artic seals 6 weeks
Back up ring RAE 21,95x1,78 L1 [2ERAE045] RAE 02195 00178 L1 Back up ring RAE 21,95x1,78 L1 [2ERAE045] Artic seals 6 weeks
Static seal SSA 21,5x17x3,5 [2ESSA494] SSA 0215 0170 035 C0 Static seal SSA 21,5x17x3,5 [2ESSA494] Artic seals 6 weeks
Static seal SSA 21x17,6x4,4 [2ESSA063] SSA 0210 0176 044 C0 Static seal SSA 21x17,6x4,4 [2ESSA063] Artic seals 6 weeks
Static seal SSA 21x18,6x3,6 [2ESSA070] SSA 0210 0186 036 C0 Static seal SSA 21x18,6x3,6 [2ESSA070] Artic seals 6 weeks
Static seal US 21,54x28,58x2,34 NBR 48005039 Static seal US 21,54x28,58x2,34 NBR OEM 92
Back up ring RAE 22,22x2,62 L1 [2ERAE169] RAE 02222 00262 L1 Back up ring RAE 22,22x2,62 L1 [2ERAE169] Artic seals 6 weeks
Static seal K85 22x19,1x3,5 PU K85-022 PU Static seal K85 22x19,1x3,5 PU Kastas 38
Static seal SSA 22x19,4x2,2 [2ESSA064] SSA 0220 0194 022 C0 Static seal SSA 22x19,4x2,2 [2ESSA064] Artic seals 6 weeks
Static seal SSA 22x19,4x3,8 [2ESSA065] SSA 0220 0194 038 C0 Static seal SSA 22x19,4x3,8 [2ESSA065] Artic seals 140
Static seal USIT 22,7x30x2 NBR [M22] 48005028 Static seal USIT 22,7x30x2 NBR [M22] OEM request
Static seal VSS 22,58x25,37x3,51 PU VSS 0254 0226 035 C0 Static seal VSS 22,58x25,37x3,51 PU Artic seals 6 weeks
Back up ring AP 23,47x2,62 48005759 Back up ring AP 23,47x2,62 Aston seals 60
Back up ring MAE 23x28x1,3 L1 MAE 0230 0280 013 L1 Back up ring MAE 23x28x1,3 L1 Artic seals 6 weeks
Back up ring RAE 23,40x3,53 L1 [2ERAE345] RAE 02340 00353 L1 Back up ring RAE 23,40x3,53 L1 [2ERAE345] Artic seals 6 weeks
Back up ring RAE 23,47x2,62 L1 [2ERAE173] RAE 02347 00262 L1 Back up ring RAE 23,47x2,62 L1 [2ERAE173] Artic seals 6 weeks
Back up ring RAE 23,52x1,78 L1 [2ERAE049] RAE 02352 00178 L1 Back up ring RAE 23,52x1,78 L1 [2ERAE049] Artic seals 6 weeks
Back up ring RAE 23,81x2,62 L1 [2ERAE177] RAE 02381 00262 L1 Back up ring RAE 23,81x2,62 L1 [2ERAE177] Artic seals 6 weeks
DIN3869 seal 23,90x29,20x1,50 (G 3/4 A) NBR 48003509 DIN3869 seal 23,90x29,20x1,50 (G 3/4 A) NBR OEM 35
Flange seal 23,4x31,8x2,85 PU A402 PU A402-023,40 Flange seal 23,4x31,8x2,85 PU A402 PU ALP 384
Flange seal FSA 23,40x31,80x2,85 PU 3/4" [2EFSA050] FSA 0750 C0 Flange seal FSA 23,40x31,80x2,85 PU 3/4" [2EFSA050] Artic seals 7
Static seal K82 23,40x31,80x2,85 PU 3/4" K82-023,40 PU Static seal K82 23,40x31,80x2,85 PU 3/4" Kastas 33
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