{"id":245,"date":"2026-02-21T22:02:14","date_gmt":"2026-02-21T22:02:14","guid":{"rendered":"https:\/\/systemseals.orangesprocket.com\/?post_type=product&p=245"},"modified":"2026-03-24T15:49:59","modified_gmt":"2026-03-24T15:49:59","slug":"122-rod-seal-u-cup-symmetrical-or-loaded","status":"publish","type":"product","link":"https:\/\/www.systemseals.com\/en\/products\/122-rod-seal-u-cup-symmetrical-or-loaded\/","title":{"rendered":"122 Rod Seal U-Cup -Symmetrical – or Loaded"},"content":{"rendered":"
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122 Series<\/p>\r\n <\/div>\r\n

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The 122 Series U-Cup is used in applications requiring high sealing and wiping forces. This seal is available in a wide range of materials to cover applications where specialty fluids are present. The seal is a symmetrical design allowing use as either dynamic OD or ID sealing. Generally the seal has been superseded by more advanced designs and it is recommended to consult with engineering to avail of more modern designs.<\/h3>\n <\/div>\r\n <\/div>\r\n <\/div>\r\n <\/div>\r\n <\/div>\r\n<\/section>\r\n
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Installation Drawing <\/h2>\r\n <\/div>\r\n
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Material Ranges <\/h2>\r\n <\/div>\r\n
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The 122 Series rod seal features high-grade polyurethane. Standard materials are MP03 machined H-PU, available up to 2100 mm in diameter, and MP50 injection-molded TPU. To suit a variety of applications, the series is also available in NBR, H-NBR, EPDM and high temperature-resistant FPM.<\/p>\n <\/div>\r\n \r\n \r\n \r\n
Polyurethane H-PU<\/td>\r\n MP03<\/td>\r\n <\/tr>\r\n
Polyurethane TPU<\/td>\r\n MP50<\/td>\r\n <\/tr>\r\n <\/table>\r\n <\/div>\r\n <\/div>\r\n <\/div>\r\n\r\n \r\n \r\n
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Temperature Ranges <\/h2>\r\n <\/div>\r\n
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MP03<\/div>\r\n <\/div>\r\n
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MP50<\/div>\r\n <\/div>\r\n
\u00b0C<\/div>\r\n
\u00b0F<\/div>\r\n <\/div>\r\n
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Hydraulic oil<\/div>\r\n
-20\u00b0 + 115\u00b0<\/div>\r\n <\/div>\r\n
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Hydraulic oil<\/div>\r\n
-5\u00b0 + 240\u00b0<\/div>\r\n <\/div>\r\n
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Water oil emulsions (HFA)<\/div>\r\n
+5\u00b0 + 55\u00b0<\/div>\r\n <\/div>\r\n
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Water oil emulsions (HFA)<\/div>\r\n
+40\u00b0 + 130\u00b0<\/div>\r\n <\/div>\r\n
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Water-glycol fluids (HFC)<\/div>\r\n
-20\u00b0 + 55\u00b0<\/div>\r\n <\/div>\r\n
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Water-glycol fluids (HFC)<\/div>\r\n
-5\u00b0 + 130\u00b0<\/div>\r\n <\/div>\r\n
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Water<\/div>\r\n
+5\u00b0 + 55\u00b0<\/div>\r\n <\/div>\r\n
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Water<\/div>\r\n
+40\u00b0 + 130\u00b0<\/div>\r\n <\/div>\r\n
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Speed<\/div>\r\n
0.5 m\/s (1.6 ft\/sec)<\/div>\r\n <\/div>\r\n
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Speed<\/div>\r\n
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Pressure<\/div>\r\n
400 bar (6000 psi)<\/div>\r\n <\/div>\r\n
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Pressure<\/div>\r\n
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Hydraulic oil<\/div>\r\n
-30\u00b0 + 110\u00b0<\/div>\r\n <\/div>\r\n
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Hydraulic oil<\/div>\r\n
-20\u00b0 + 230\u00b0<\/div>\r\n <\/div>\r\n
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Water oil emulsions (HFA)<\/div>\r\n
+5\u00b0 + 50\u00b0<\/div>\r\n <\/div>\r\n
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Water oil emulsions (HFA)<\/div>\r\n
+40\u00b0 + 120\u00b0<\/div>\r\n <\/div>\r\n
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Water-glycol fluids (HFC)<\/div>\r\n
-30\u00b0 + 40\u00b0<\/div>\r\n <\/div>\r\n
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Water-glycol fluids (HFC)<\/div>\r\n
-20\u00b0 + 100\u00b0<\/div>\r\n <\/div>\r\n
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Water<\/div>\r\n
+5\u00b0 + 50\u00b0<\/div>\r\n <\/div>\r\n
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Water<\/div>\r\n
+40\u00b0 + 120\u00b0<\/div>\r\n <\/div>\r\n <\/div>\r\n <\/div>\r\n <\/div>\r\n <\/div>\r\n <\/div>\r\n\r\n