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Class Numbers & Titles | Class Numbers Only | USPC Index | International | HELP |
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You are viewing a USPC Schedule. |
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Class 251 | VALVES AND VALVE ACTUATION |
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![]() | ![]() | 1.1 | BLOW-OUT PREVENTERS (I.E., COOPERATING SEGMENTS OF ANNULUS) |
![]() | ![]() | 3 | PATTERN TRACER CONTROLLED ACTUATOR |
![]() | ![]() | 4 | TUBE COMPRESSORS |
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![]() | ![]() | 11 | HEAT OR BUOYANCY MOTOR ACTUATED |
![]() | ![]() | 12 | FLUID ACTUATED OR RETARDED |
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![]() | ![]() | 64 | WITH NON-FLUID RETARDER |
![]() | ![]() | 65 | PERMANENT OR CONSTANTLY ENERGIZED MAGNET ACTUATOR |
![]() | ![]() | 66 | BIASED TRIP |
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![]() | ![]() | 75 | WITH SNAP ACTION |
![]() | ![]() | 76 | IMPACT TYPE ACTUATOR |
![]() | ![]() | 77 | LOST MOTION BETWEEN ACTUATOR AND VALVE |
![]() | ![]() | 84 | VALVE HEAD MOVABLY CONNECTED FOR ACCOMMODATION TO SEAT |
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![]() | ![]() | 89 | WITH MEANS FOR BLOCKING OR DISABLING ACTUATOR |
![]() | ![]() | 89.5 | ![]() |
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![]() | ![]() | 117 | WITH RESTRICTOR IN PARALLEL TO MAIN VALVE |
![]() | ![]() | 118 | WITH MATERIAL GUIDE OR RESTRICTOR |
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![]() | ![]() | 128 | WITH DETACHABLE ACTUATOR AND MEANS TO PREVENT LEAKAGE WHEN ACTUATOR IS DETACHED |
![]() | ![]() | 129.01 | ELECTRICALLY ACTUATED VALVE |
![]() | ![]() | 129.02 | ![]() |
![]() | ![]() | 129.03 | ![]() |
![]() | ![]() | 129.04 | ![]() |
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![]() | ![]() | 129.2 | ![]() |
![]() | ![]() | 129.21 | ![]() |
![]() | ![]() | 129.22 | ![]() |
![]() | ![]() | 142 | WITH CORRELATED FLOW PATH |
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![]() | ![]() | 149.8 | ![]() |
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![]() | ![]() | 157 | WITH MEANS TO INCREASE HEAD AND SEAT CONTACT PRESSURE |
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![]() | ![]() | 205 | WITH SELECTIVE FLOW REGULATION |
![]() | ![]() | 210 | SEQUENTIAL OPENING OR CLOSING OF SERIAL PORTS IN SINGLE FLOW LINE (E.G., ANTI-SCORING) |
![]() | ![]() | 211 | SERIAL ALTERNATELY CLOSED PORTS |
![]() | ![]() | 212 | RELATIVELY MOVABLE VALVE ELEMENTS FORM SINGLE PORT CLOSURE (E.G., IRIS DIAPHRAGM) |
![]() | ![]() | 213 | MECHANICAL MOVEMENT ACTUATOR |
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![]() | ![]() | 281 | BALANCED VALVES |
![]() | ![]() | 284 | LIMIT STOP |
![]() | ![]() | 289 | VALVE ACTUABLE FROM PLURAL POSITIONS |
![]() | ![]() | 290 | PLURAL SELECTIVE NEUTRAL POSITIONS FOR VALVE OR ACTUATOR |
![]() | ![]() | 291 | DETACHABLE ACTUATOR |
![]() | ![]() | 293 | EXTENSION FOR ACTUATOR |
![]() | ![]() | 294 | FLEXIBLE ACTUATOR (E.G., BOWDEN WIRE; CHAIN) |
![]() | ![]() | 295 | PEDAL ACTUATOR |
![]() | ![]() | 296 | PLURAL MOTIONS OF ACTUATOR |
![]() | ![]() | 297 | WITH FRICTION DETENT |
![]() | ![]() | 298 | PIVOTED VALVES |
![]() | ![]() | 304 | ROTARY VALVES |
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![]() | ![]() | 315.01 | ![]() |
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![]() | ![]() | 315.1 | ![]() |
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![]() | ![]() | 315.15 | ![]() |
![]() | ![]() | 315.16 | ![]() |
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![]() | ![]() | 318 | RECIPROCATING VALVE |
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![]() | ![]() | 335.1 | HERMETIC FLEXIBLE WALL SEAL FOR ACTUATOR |
![]() | ![]() | 336 | BIASED VALVE |
![]() | ![]() | 339 | VALVE ACTUATOR EXTENDING THROUGH FLUID INLET OR OUTLET |
![]() | ![]() | 340 | VALVE ACTUATOR SURROUNDING PIPE, INLET OR OUTLET |
![]() | ![]() | 341 | VALVE ACTUATOR IS VALVE CASING OR EXTENSION THEREOF |
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![]() | ![]() | 349 | VALVE ACTUATOR IS INLET OR OUTLET |
![]() | ![]() | 355 | WITH ACTUATION LUBRICATING MEANS |
![]() | ![]() | 356 | VALVE |
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![]() | ![]() | 369 | MISCELLANEOUS |
CROSS-REFERENCE ART COLLECTIONS | ||
![]() | ![]() | 900 | VALVES WITH O-RINGS |
![]() | ![]() | 901 | CURTAIN TYPE VALVES |
![]() | ![]() | 902 | SPRINGS EMPLOYED AS VALVES |
![]() | ![]() | 903 | NEEDLE VALVES |
![]() | ![]() | 904 | SNAP FIT PLUG VALVES |
![]() | ![]() | 905 | MOVABLE COIL ELECTRICAL ACTUATOR (E.G., VOICE COIL) |
FOREIGN ART COLLECTIONS | ||
FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
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