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TOP DRIVE,TDS-8SA
JJC TEC
30151891-X3D
Premium OEM-Referenced Pressure Control Component for Harsh Drilling Environments
The OEM 30151891-X3D High-Pressure Switch is a rugged, ATEX-certified pressure sensing and switching unit designed specifically for NOV / Varco Top Drive systems. Commonly associated with the PF263-SCD switch type, this component delivers reliable pressure monitoring within the “RLA Lift” circuit, supporting critical lifting and safety functions in top-drive drilling equipment.
Built to perform under extreme pressure, temperature, and vibration conditions, the 30151891-X3D ensures consistent and safe operation across demanding oilfield environments.
Fully referenced for NOV / Varco top-drive systems, ensuring seamless integration and reliable operation without modification.
Engineered to withstand pressures up to 700 bar, ideal for heavy-duty drilling and hydraulic systems.
Suitable for harsh field conditions with an operating range of –20°C to +150°C.
Rated for use in explosive/hazardous zones, meeting international safety requirements for rig-floor environments.
Pressure actuation range typically 1160–3480 psi (≈80–240 bar), enabling accurate system feedback and control.
Built to resist shock, vibration, drilling fluids, and corrosive environments—prolonging operational life and reducing downtime.
NOV / Varco TDS (Top Drive System) assemblies
RLA Lift pressure control circuits
Hydraulic safety interlock systems
High-pressure pneumatic or hydraulic control loops
Drilling rig automation and safety systems
| Parameter | Specification |
|---|---|
| OEM Reference | 30151891-X3D |
| Function | High-Pressure Switch (RLA Lift circuit) |
| Switch Model | PF263-SCD (typical equivalent) |
| Max Working Pressure | Up to 700 bar |
| Actuation Range | ~ 1160–3480 psi (approx. 80–240 bar) |
| Temperature Range | –20°C to +150°C |
| Certification | ATEX |
| Application | NOV / Varco Top Drive Systems |
| Installation | Direct OEM-style replacement |
The 30151891-X3D is not just a replacement part—it is a critical reliability component designed for continuous operation in one of the most demanding mechanical systems on a drilling rig. Operators rely on this switch for precision feedback in top-drive lifting operations, making quality and accuracy essential.
Part Number: 30151891-X3D
Condition: New / OEM-Referenced
Availability: Stock or short lead-time depending on region
Documentation: ATEX certificate, pressure curves, and wiring diagrams available upon request
Ensure the safety and reliability of your top-drive system with the OEM 30151891-X3D.
Contact our technical sales team with your rig model and serial number for verification and pricing.
| No. | OEM Ref No. | Description |
| 401 | 32019 | PIP SEAL ASSY, 18“ OD X 17“ ID PARKER |
| 402 | 92537-E-216 | ELEMENT,FILTER,PHM3I |
| 403 | 30182002-500 | KIT, FACE SEAL WASHPIPE 4“ BORE |
| 404 | 30177083-2 | REPAIR KIT UPPER IBOP,EXT STOP-COMPLETE |
| 405 | 7006609 | SCREW,HEX SOCKET |
| 406 | 1295252 | DISCHARGE CONNECTOR |
| 407 | 700030711 | HEX HEAD CAP SCREW |
| 408 | 152344 | WEARBAND |
| 409 | 30178258 | BRACKET,LINK PH100 |
| 410 | 30123277 | BUSHING, SLEEVE, 1.0X1.38X1.35, MS15 |
| 411 | 51208-8 | PIN, DOWEL |
| 412 | 30150177 | MANIFOLD,FIELDBUS VALVE |
| 413 | 30171331-501 | FINGER, ASSEMBLY, LATCH;PIPE HANDLING;CASING |
| 414 | 59000243-3-8 | INLINE CHECK VALVE |
| 415 | 116920-225 | RING, RETAINING;HEAVY DUTY SPIRAL EXTERN |
| 416 | 56558-8-8-S | ADAPTER,BULKHEAD-EXT PIPE/37 |
| 417 | 17469489-001 | PACKING ELEMENT, SBOP;18-05M |
| 418 | 185101 | SEAL KIT |
| 419 | 80700 | TEMP. TRANSMITTER |
| 420 | 30151953-500 | HOUSING |
| 421 | 50014-20-C5D | SCREW, CAP-HEX HD DRILLED |
| 422 | 30171513-LT | ROLLER PIN(FLANGE) |
| 423 | 85887 | BUSHING,SLEEVE,2.5X3.0X2.0LG*SCD* |
| 424 | 78656-1 | SAVER SUB， 4-1/2XH/NC46 |
| 425 | PSR-ESD-300 | SAFETY RELAYS |
| 426 | 80342+30 | SCREEN,ARRESTOR,SPARK |
| 427 | 0000-6941-52 | RELAY |
| 428 | 219551 | STARLINE EX PLUG GLAND, MALE |
| 429 | 94552-IEN | CARTRIDGE, VALVE, RELIEF TDS9S |
| 430 | 30152190 | ASSY, MANIFOLD, ROTATING HEAD MTR, TDS-8SA |
| 431 | 30171513 | PIN,ROLLER,TDS-1000 |
| 432 | M364000762 | STRUT ROD |
| 433 | 50068-012-F06 | SCREW,CAP-HEX HEAD(METRIC) |
| 434 | M364000763 | ROD HOUSING |
| 435 | M364000775 | GUARD,BOGEY ARM |
| 436 | M364000775-100 | GUARD,BOGEY ARM |
| 437 | 51300-377-B | O-RING, 9.975“ I.D., .210“ W. |
| 438 | 131926 | SEAL, INPUT |
| 439 | 131919 | LIP SEAL |
| 440 | 30131842 | SEAL |
| 441 | 51300-219-B | O RING |
| 442 | 51300-169-B | O-RING |
| 443 | 132007 | SEAL, LIP |
| 444 | 131927 | SEAL, OUTPUT |
| 445 | 132009 | PLATE, WEAR |
| 446 | 131912-SK1 | SEAL KIT |
| 447 | 131913SK-1 | SEAL KIT |
| 448 | 207287 | LENGTH TRANSMITTER EX 25BITS 10M IP67, OBSOLETE NO REPLACEMENT |
| 449 | 300/05/004 | VSM SHAKER ISOLATOR PAD |
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