Piston Seals
Wiper Seals
buffer seals
guide rings
Hydraulic Seal Info
Material
Type: Polyurethane
Designation: HPUR
Hardness: 93 °ShA
Field of Application
10
8
6
4
2
0
Speed (m/s)
+200°C
+150°C
+100°C
+50°C
0°C
-25°C
-50°C
-75°C
-100°C
Temperature

Fluids: Hydraulic oils (mineral oil based)
For other fluids contact our technical department.

Application
Linear Static

Oscillating                        Screwing
Surface Roughness
Roughness Rt max (μm) Ra (μm) Material portion
Sliding surface ≤ 2.5 0.1 - 0.5 Ratio contact area: 50 - 95% at cutting depth of 0.5 x Rz starting from Cref = 0%
Groove base ≤ 6.3 ≤ 1.6
Groove flanks ≤ 15 ≤ 8
Lead-In Chamfers
d ≤ 100: Smin = 5 mm

100 < d ≤ 200: Smin = 7 mm

d > 200: Smin = 10 mm
Any pressure loads on the back of the rings should be avoided.
Sharp edges and burrs within the installation area must be removed.
Compounds for Petrochemical Applications

Compounds for Petrochemical Applications

Material Name Base Material (°C) Type Hardness Colour Temp range Approval Designation Cert
HNBR 90 ED HNBR px 90 Shore A Black -35 to +160(+180) Oil&Gas applications & Tested for H2 Service
Anti Explosive Decompression AED
ED Total Fina-Shell
NORSOK M710 (AED - RGD) - 5.33 mm - 10.82 mm
NORSOK M710 (sour fluid resistance)
EN 14141:2003 (fluid resistance)
NACE TM0187 (sour gas environment) 5% H2S, 20% H2S
API6A (sour gas environment) 10% H2S - [FF/HH]
API6A 10% H2S FFHH
Saudi Aramco 06-SAMSS-001 (02-2017)
Sour fluid test Arrhenius ISO 23936-2/NORSOK M710-3
NORSOK M710 RGD H2 5,33 150 Bar
NACE TM0297 100% CO2 - 5.33 mm		 O-ring
HNBR 90 ED HNBR px 90 Shore A Black -35 to +160(+180) Oil&Gas applications & Tested for H2 Service
Low Temperature
Anti Explosive Decompression AED
NORSOK M710 (AED - RGD) - 5.33 mm
NACE TM0187 (sour gas environment) 5% H2S
NACE TM0297 100% CO2 (AED - RGD) - 10.82 mm
SHELL
MESC SPE 85/301
API6A (sour gas environment) 10% H2S FFHH
O-ring
FKM 70 GF Nero FKM P 70 Shore A Black -15 to +240 Sour Fuel
MAN 308-2 (Truck & Bus AG 2011)
BAM (150°C - 40Bar Oxigen)
VW 2.8.1 A (2011) 		O-ring
Imperial O‑Ring Sizes & Tolerances (BS1806 & AS568A)
External Circlips
DIN471
Shaft Groove Circlip
Size Code Shaft Size Groove Size Tol ± Thickness Tol ± Free Diameter Beam Lug Clearance
0030 3.0 2.800 +0.00 / -0.04 0.40 0.00 / -0.05 2.7 0.8 1.9 7
0040 4.0 3.800 +0.00 / 0.048 0.40 0.00 / -0.05 3.7 0.9 2.2 8.6
0050 5.0 4.800 +0.00 / 0.06 0.60 0.00 / -0.05 4.7 1.1 2.5 10.3
0060 6.0 5.700 +0.00 / 0.06 0.70 0.00 / -0.05 5.6 1.3 2.7 11.7
0070 7.0 6.700 +0.00 / 0.06 0.80 0.00 / -0.05 6.5 1.4 3.1 13.5
0080 8.0 7.600 +0.00 / 0.06 0.80 0.00 / -0.06 7.4 1.5 3.2 14.7
0090 9.0 8.600 +0.00 / 0.06 1.00 0.00 / -0.06 8.4 1.7 3.3 16
0100 10.0 9.600 +0.00 / 0.06 1.00 0.00 / -0.06 9.3 1.8 3.3 17
0110 11.0 10.500 +0.00 / -0.11 1.00 0.00 / -0.06 10.2 1.8 3.3 18
0120 12.0 11.500 +0.00 / -0.11 1.00 0.00 / -0.06 11.0 1.8 3.3 19
0130 13.0 12.400 +0.00 / -0.11 1.00 0.00 / -0.06 1.9 2 3.4 20.2
0140 14.0 13.400 +0.00 / -0.11 1.00 0.00 / -0.06 12.9 2.1 3.5 21.4
0150 15.0 14.300 +0.00 / -0.11 1.00 0.00 / -0.06 13.8 2.2 3.6 22.6
0160 16.0 15.200 +0.00 / -0.11 1.00 0.00 / -0.06 14.7 2.2 3.7 23.8
0170 17.0 16.200 +0.00 / -0.11 1.00 0.00 / -0.06 15.7 2.3 3.8 25
0180 18.0 17.000 +0.00 / -0.11 1.20 0.00 / -0.06 16.5 2.4 3.9 26.2
0190 19.0 18.000 +0.00 / -0.13 1.20 0.00 / -0.06 17.5 2.5 3.9 27.2
0200 20.0 19.000 +0.00 / -0.13 1.20 0.00 / -0.06 18.5 2.6 4 28.4
0210 21.0 20.000 +0.00 / -0.13 1.20 0.00 / -0.06 19.5 2.7 4.1 29.6
0220 22.0 21.000 +0.00 / -0.13 1.20 0.00 / -0.06 20.5 2.8 4.2 30.8
0230 23.0 22.000 +0.00 / -0.13 1.20 0.00 / -0.06 21.5 2.9 4.3 32
0240 24.0 22.900 +0.00 / -0.21 1.20 0.00 / -0.06 22.2 3 4.4 33.2
0250 25.0 23.900 +0.00 / -0.21 1.20 0.00 / -0.06 23.2 3 4.4 34.2
0260 26.0 24.900 +0.00 / -0.21 1.20 0.00 / -0.06 24.2 3.1 4.5 35.5
0270 27.0 25.600 +0.00 / -0.21 1.20 0.00 / -0.06 24.9 3.1 4.6 36.7
0280 28.0 26.600 +0.00 / -0.21 1.50 0.00 / -0.06 25.9 3.2 4.7 37.9
0290 29.0 27.600 +0.00 / -0.21 1.50 0.00 / -0.06 26.9 3.4 4.8 39.1
0300 30.0 28.600 +0.00 / -0.21 1.50 0.00 / -0.06 27.9 3.5 5 40.5
0320 32.0 30.300 +0.00 / -0.25 1.50 0.00 / -0.06 29.6 3.6 5.2 43
0330 33.0 31.300 +0.00 / -0.25 1.50 0.00 / -0.06 30.5 3.7 5.2 44
0340 34.0 32.300 +0.00 / -0.25 1.50 0.00 / -0.06 31.5 3.8 5.4 45..4
0350 35.0 33.000 +0.00 / -0.25 1.50 0.00 / -0.06 32.2 3.9 5.6 46.8
0360 36.0 34.000 +0.00 / -0.25 1.75 0.00 / -0.06 33.2 4 5.6 47.8
0380 38.0 36.000 +0.00 / -0.25 1.75 0.00 / -0.06 35.2 4.2 5.8 50.2
0400 40.0 37.500 +0.00 / -0.25 1.75 0.00 / -0.06 36.5 5 6 52.6
0420 42.0 39.500 +0.00 / -0.25 1.75 0.00 / -0.06 38.5 5 6.5 55.7
0450 45.0 42.500 +0.00 / -0.25 1.75 0.00 / -0.06 41.5 5 6.7 59.1
0460 46.0 43.500 +0.00 / -0.25 1.75 0.00 / -0.06 42.5 5 6.7 60.1
0470 47.0 44.500 +0.00 / -0.25 1.75 0.00 / -0.06 43.5 5 6.8 61.3
0480 48.0 45.500 +0.00 / -0.25 1.75 0.00 / -0.06 44.5 5 6.9 62.5
0500 50.0 47.000 +0.00 / -0.25 2.00 0.00 / -0.07 45.8 5.5 6.9 64.5
0520 52.0 49.000 +0.00 / -0.25 2.00 0.00 / -0.07 47.8 5.5 7 66.7
0540 54.0 51.000 +0.00 / -0.25 2.00 0.00 / -0.07 49.8 5.5 7.1 69
0550 55.0 52.000 +0.00 / -0.25 2.00 0.00 / -0.07 50.8 5.5 7.2 70.2
0560 56.0 53.000 +0.00 / -0.30 2.00 0.00 / -0.07 51.8 5.5 7.3 71.6
0580 58.0 55.000 +0.00 / -0.30 2.00 0.00 / -0.07 53.8 5.6 7.3 73.6
0600 60.0 57.000 +0.00 / -0.30 2.00 0.00 / -0.07 55.8 5.8 7.4 75.6
0620 62.0 59.000 +0.00 / -0.30 2.00 0.00 / -0.07 57.8 6 7.5 77.8
0630 63.0 60.000 +0.00 / -0.30 2.00 0.00 / -0.07 58.8 6.2 7.6 79
0650 65.0 62.000 +0.00 / -0.30 2.50 0.00 / -0.07 60.8 6.3 7.8 81.4
0670 67.0 64.000 +0.00 / -0.30 2.50 0.00 / -0.07 62.5 6.4 7.9 83.6
0680 68.0 65.000 +0.00 / -0.30 2.50 0.00 / -0.07 63.5 6.5 8 84.4
0700 70.0 67.000 +0.00 / -0.30 2.50 0.00 / -0.07 65.5 6.6 8.1 87
0720 72.0 69.000 +0.00 / -0.30 2.50 0.00 / -0.07 67.5 6.8 8.2 89.2
0750 75.0 72.000 +0.00 / -0.30 2.50 0.00 / -0.07 70.5 7 8.4 92.7
0770 77.0 74.000 +0.00 / -0.30 2.50 0.00 / -0.07 72.5 7.2 8.5 94.9
0780 78.0 75.000 +0.00 / -0.30 2.50 0.00 / -0.07 73.5 7.3 8.6 96.1
0800 80.0 76.500 +0.00 / -0.30 2.50 0.00 / -0.07 74.5 7.4 8.6 98.1
0820 82.0 78.500 +0.00 / -0.30 2.50 0.00 / -0.07 76.5 7.6 8.7 100.3
0850 85.0 81.500 +0.00 / -0.54 3.00 0.00 / -0.08 79.5 7.8 8.7 103.3
0880 88.0 84.500 +0.00 / -0.54 3.00 0.00 / -0.08 82.5 8 8.8 106.5
0900 90.0 86.500 +0.00 / -0.54 3.00 0.00 / -0.08 84.5 8.2 8.8 108.5
0950 95.0 91.500 +0.00 / -0.54 3.00 0.00 / -0.08 89.5 8.6 9.4 114.8
0980 98.0 94.500 +0.00 / -0.54 3.00 0.00 / -0.08 91.5 9 9.8 118.6
1000 100.0 96.500 +0.00 / -0.54 3.00 0.00 / -0.08 94.5 9 9.6 120.2
1020 102.0 98.000 +0.00 / -0.54 4.00 0.00 / -0.10 95.0 9.2 9.7 122.4
1050 105.0 101.000 +0.00 / -0.54 4.00 0.00 / -0.10 98.0 9.3 10.1 126.2
1080 108.0 104.000 +0.00 / -0.54 4.00 0.00 / -0.10 100.0 9.5 10 129
1100 110.0 106.000 +0.00 / -0.54 4.00 0.00 / -0.10 103.0 9.6 10.1 131.2
1150 115.0 111.000 +0.00 / -0.54 4.00 0.00 / -0.10 108.0 9.8 10.6 137.3
1200 120.0 116.000 +0.00 / -0.54 4.00 0.00 / -0.10 113.0 10.2 11 143.1
1250 125.0 121.000 +0.00 / -0.63 4.00 0.00 / -0.10 118.0 10.4 11.4 149
1300 130.0 126.000 +0.00 / -0.63 4.00 0.00 / -0.10 123.0 10.7 11.6 154.4
1350 135.0 131.000 +0.00 / -0.63 4.00 0.00 / -0.10 128.0 11 11.8 159.8
1400 140.0 136.000 +0.00 / -0.63 4.00 0.00 / -0.10 133.0 11.2 12 165.2
1450 145.0 141.000 +0.00 / -0.63 4.00 0.00 / -0.10 138.0 11.5 12.2 170.6
1500 150.0 145.000 +0.00 / -0.63 4.00 0.00 / -0.10 142.0 11.8 13 177.3
1550 155.0 150.000 +0.00 / -0.63 4.00 0.00 / -0.10 146.0 12 13 182.3
1600 160.0 155.000 +0.00 / -0.63 4.00 0.00 / -0.10 151.0 12.2 13.3 188
1650 165.0 160.000 +0.00 / -0.63 4.00 0.00 / -0.10 155.5 12.5 13.5 193.4
1700 170.0 165.000 +0.00 / -0.63 4.00 0.00 / -0.10 160.5 12.9 13.5 198.4
1750 175.0 170.000 +0.00 / -0.63 4.00 0.00 / -0.10 165.5 12.9 13.5 203.4
1800 180.0 175.000 +0.00 / -0.63 4.00 0.00 / -0.10 170.5 13.5 14.2 210
1850 185.0 180.000 +0.00 / -0.63 4.00 0.00 / -0.10 175.5 13.5 14.3 215.2
1900 190.0 185.000 +0.00 / -0.72 4.00 0.00 / -0.10 180.5 14 14.2 220
1950 195.0 190.000 +0.00 / -0.72 4.00 0.00 / -0.10 185.5 14 14.2 225
2000 200.0 195.000 +0.00 / -0.72 4.00 0.00 / -0.10 190.5 14 14.2 230
2050 205.0 199.000 +0.00 / -0.72 5.00 0.00 / -0.12 193.0 14 14.2 235
2100 210.0 204.000 +0.00 / -0.72 5.00 0.00 / -0.12 198.0 14 14.2 240
2200 220.0 214.000 +0.00 / -0.72 5.00 0.00 / -0.12 208.0 14 14.2 250
2300 230.0 224.000 +0.00 / -0.72 5.00 0.00 / -0.12 218.0 14 14.2 260
2400 240.0 234.000 +0.00 / -0.72 5.00 0.00 / -0.12 228.0 14 14.2 270
2500 250.0 244.000 +0.00 / -0.72 5.00 0.00 / -0.12 238.0 14 16.2 280
2600 260.0 252.000 +0.00 / -0.81 5.00 0.00 / -0.12 245.0 16 16.2 294
2700 270.0 262.000 +0.00 / -0.81 5.00 0.00 / -0.12 255.0 16 16.2 304
2800 280.0 272.000 +0.00 / -0.81 5.00 0.00 / -0.12 265.0 16 16.2 314
2900 290.0 282.000 +0.00 / -0.81 5.00 0.00 / -0.12 275.0 16 16.2 324
3000 300.0 292.000 +0.00 / -0.81 5.00 0.00 / -0.12 285.0 16 16.2 334
3100 310.0 300.000 +0.00 / -0.81 6.00 0.00 / -0.18 293.0 20 20.2 352.2
3200 320.0 310.000 +0.00 / -0.81 6.00 0.00 / -0.18 303.0 20 20.2 362.2
3300 330.0 320.000 +0.00 / -0.89 6.00 0.00 / -0.18 313.0 20 20.2 372.2
3400 340.0 330.000 +0.00 / -0.89 6.00 0.00 / -0.18 323.0 20 20.2 382.2
3500 350.0 340.000 +0.00 / -0.89 6.00 0.00 / -0.18 333.0 20 20.2 392.2
3600 360.0 350.000 +0.00 / -0.89 6.00 0.00 / -0.18 343.0 20 20.2 402.2
3700 370.0 360.000 +0.00 / -0.89 6.00 0.00 / -0.18 353.0 20 20.2 412.2
3800 380.0 370.000 +0.00 / -0.89 6.00 0.00 / -0.18 363.0 20 20.2 422.2
3900 390.0 380.000 +0.00 / -0.89 6.00 0.00 / -0.18 373.0 20 20.2 432.2
4000 400.0 390.000 +0.00 / -0.89 6.00 0.00 / -0.18 383.0 20 20.2 442.2