Product Introduction
This curated ZJ70DBS rig spare parts assortment spans four critical lots, covering mud pump consumables, drawworks/hydraulic/pneumatic components, mud circulation system parts, and engine/solid control equipment spares. Included are high-pressure mud pump liners/pistons, drawworks clutch assemblies, hydraulic filters, pneumatic valves, mud hose/seal kits, CAT engine filters, Derrick shaker screens, and centrifugal pump repair components. All parts undergo factory pressure, load, and durability testing validated for the ZJ70DBS rig’s 7000m drilling depth capacity and 35MPa/5000PSI high-pressure mud circulation requirements, with full material traceability and compliance with API and national mechanical standards.
Functional Performance Specifications
These ZJ70DBS rig spare parts deliver industry-leading drilling reliability: NOV mud pump liners/pistons maintain 5000PSI high-pressure mud circulation with a service life of 12,000+ operating hours; drawworks pneumatic clutches and hydraulic pumps deliver consistent torque transmission with zero slip; pneumatic control valves ensure responsive actuation with 99.8% leak-free performance; mud system valves and hoses withstand abrasive drilling mud and high-pressure cycling; CAT engine filters and belts optimize engine efficiency, reducing fuel consumption by 5%; and Derrick solid control parts enhance mud purification efficiency by 40%.
Structural & Material Features
- OEM Precision Manufacturing: All structural, hydraulic, and wear components are machined to tight tolerances (±0.0003 inch), matching original ZJ70DBS rig and subsystem design specifications for perfect fitment.
- Heavy-Duty Wear-Resistant Materials: Mud pump liners use hardened chrome alloy steel, seals use oil/abrasion-resistant fluoroelastomer, engine components use heat-resistant alloy, and mud system parts use corrosion-resistant carbon steel.
- Modular Repair Design: Pre-assembled repair kits, seal sets, and filter cartridges streamline on-site overhauls, cutting rig maintenance downtime by 60%.
- High-Pressure Sealing System: Multi-stage O-rings, V-belts, and packing sets create leak-proof joints for mud, hydraulic, and pneumatic circuits, preventing fluid loss and contamination.
- Vibration-Dampened Construction: Reinforced mounts, couplings, and retaining rings absorb heavy rig vibration, eliminating premature component failure during continuous drilling.
Applicable Operating Conditions
These spare parts are built for harsh onshore drilling environments, optimized for the ZJ70DBS 7000m-depth drilling rig deployed at Begumganj#4(West) and similar land drilling sites. They perform reliably in ambient temperatures ranging from -20°F to 140°F, resist exposure to abrasive drilling mud, engine oil, dust, and heavy rig vibration, and comply with onshore hazardous location safety standards. All high-pressure components are rated for up to 70MPa/10000PSI duty, matching the rig’s full operational pressure range.
Maintenance & Service Recommendations
- Inspect mud pump liners, pistons, and valve seats every 3 months for wear; replace worn components to maintain high-pressure mud circulation and prevent pump failure.
- Service drawworks hydraulic filters, pneumatic valves, and clutch assemblies quarterly; clean or replace filters and lubricate moving parts to ensure smooth drawworks operation.
- Replace CAT engine air/fuel/oil filters every 500 operating hours; inspect belts and seals for wear to sustain engine performance and avoid breakdowns.
- Check mud system hoses, valves, and seals semi-annually; replace degraded seals and damaged hoses to prevent mud leaks and maintain circulation efficiency.
- Inspect Derrick solid control equipment (shakers, desanders, centrifuges) monthly; replace worn screens, belts, and bushings to optimize mud purification.
- Stock high-wear consumables (mud pump parts, filters, seals, belts) at recommended minimum levels to eliminate unplanned ZJ70DBS rig shutdowns.
- We supply the following spare parts:
| Sl. No. | Item Description | Part No./Model No./Drawing code | Unit |
| 1 | Liner 7” | Updated PN: 10324520-001 Replaced 05466700 | EA |
| 2 | Liner 6” | Updated PN: 10324505-001 Replaced 05466600 | EA |
| 3 | Piston 7” with piston seal ring | Updated PN: 10329814-001 Replaced 1502064 | EA |
| 4 | Piston 6” with piston seal ring | Updated PN: 10219800-001 Replaced: 1502060 | EA |
| 5 | Valve spring (OD=11cm, L=13cm) | Updated PN: 10330111-001 Replaced: 1560702 | EA |
| 6 | Valve Seat (full open) | Updated PN: 10330187-001-0 Replaced:1561440 | EA |
| 7 | Valve complete with urethane insert | Updated PN: 10330158-001-0 Replaced: 1560985 | EA |
| 8 | Valve Cover | Updated PN: 10017764-001 Replaced: 1292352 | EA |
| 9 | Valve retainer | Updated PN: 10017762-001 Replaced:1292350 | EA |
| 10 | Holder, Valve guide insert | Updated PN: 10017680-001 Replaced 1292140 | EA |
| 11 | Insert valve guide | Updated PN: 17810813-001 Replaced 1292141 | EA |
| 12 | Valve cover Gasket | G-6309/G-787U | EA |
| 13 | Liner Packing 7″ | P/N-07923285 | EA |
| 14 | Liner packing 6″ | P/N-07923261 | EA |
| 15 | Combined narrow V-Belt (5 pcs in 1 line set) for 12-P-160 NOV mud pump | 25(J)5-8000, P/N-GB/T13575.2-1992 | EA |
| 16 | Pressure Gauge 0-6000 psi | P/N: YN150B | EA |
| 17 | Stem, 36” Center (for Valve Seat Puller) | 10090588-001 | EA |
| 18 | Nut, Stem (for Valve Seat Puller) | 10070662-001 | EA |
| Sl. No. | Item Description | Part No./Model No./Drawing code | Unit |
| LOT-2 : Spare of DW, HPU, Pneumatic control system. | |||
| A. Draw Works (DW), Model: JC70DB (JC123-TC), Company: Hong Hua, China. | |||
| 1 | Gear oil pump coupled with motor 1.5 KW (Explosion proof) | KCB83.3 | set |
| 2 | Fast air release valve | KPJa-L10 | EA |
| 3 | Ventilated type air tube clutch set | LT 500/250T | set |
| 4 | Quick exhaust valve | S-QY43 | EA |
| 5 | Primary Oil Filter | CLY-00 | EA |
| 6 | Secondary Oil Filter | ELY-00 | EA |
| 7 | DW Kick back roller/ Rope Retainer | DSQ-01.00 | EA |
| 8 | Crown-o-metric sever(Toggle Valve) | QY70 | Set |
| B. Spare for main Hydraulic power unit (HPU), Model: ZY064B, Company: HongHua, China. | |||
| 9 | Return oil filter | RFB-400×10/ FBX-400×10 | EA |
| 10 | HP oil filter | ZU-H25x10BDP | EA |
| 11 | Relay valve HP filter | LT09HG-1×125/02M | EA |
| 12 | Air filter | QUQ3-10×4.0 | EA |
| 13 | DW disc brake hydraulic pump coupled with motor (YB2-100L2-4WF2, 3KW) | Pump- Parker (PV62R1ECOO) | set |
| 14 | Bladder for accumulator for DW disc brake system. | NXQ1-LO 63/31.5-H | set |
| 15 | Accumulator filter oil Block for DW disc brake system. | Drawing code: HTY 07.01 | set |
| C. Spare for RT Drive. Model: ZP375(ZB-045-TC). Company: Honghua, China. | |||
| 16 | Ventilated Type air tube clutch friction block. | P/N: LT500/250T | set |
| 17 | Ventilated Type air tube clutch air bag. | P/N: LT500/250T | set |
| 18 | Universal shaft 775±25. | DWG.Code: G303.03.00 | set |
| D. Swivel, Model: SL450. Company: Honghua, China. | |||
| 19 | Wash pipe | P/N: SL001.05.06 | EA |
| 20 | Mud packing | P/N: SL001.05.04 | Set/5pcs |
| 21 | Grease nipple, M10x1 | P/N: GB1152-89 | EA |
| 22 | O-ring, 122×5.3 | P/N: GB/T3452.1-92 | EA |
| 23 | O-ring: 109×5.3 | P/N: GB/T3452.1-92 | EA |
| 24 | Lock Ring | P/N: SL001.05.07 | EA |
| E. Pneumatic control System.(Drillers Cabin and Other’s) | |||
| 25 | 2-p,3-w electromagnetic Valve. | MFH-3-1/4-+MSFG-24-EX | EA |
| 26 | 2-p,3-w normally openPneumatic valve. | 23Q-L15-K(QY23) | EA |
| 27 | 2-p,3-w normally closedpneumatic valve | 23Qa-L15(QY22) | EA |
| 28 | Switch valve | HE-1/2-D-MIDI | EA |
| 29 | 3 in 1 air source treatmentUnit | FRC-1/2-D-MIDI-A | EA |
| 30 | Quick air release valve | KPJa-L10 (QY43) | EA |
| 31 | Connection hose (plastic tubing), Festo. | PLN-12X1.75-NT | Meter |
| 32 | Connection hose (plastic tubing), Festo. | PLN-10X1.25-NT | Meter |
| 33 | Push-in bulkhead connector | QSSF-G1/4-10 | EA |
| 34 | Push-in fitting | QS-G1/2-12 | EA |
| 35 | Normally open pneumatic valve | VL/O-3-1/4 | EA |
| 36 | Quick connector (quick coupling socket and plug), Festo | KD3-1/4-A, KS3-1/4-I | Set |
| 37 | Filter | QSLD-L50 | EA |
| 38 | KA series check valve | P/N: KA-L50 | EA |
| Sl. No. | Item Description | Part No./Model No./Drawing code | Unit |
| 1 | 4” Flanged flexil gate valve (flange to flange approx. length 55cm) API standard | 41/16“, 35MPa/5000psi,R39 | EA |
| 2 | 2” Flanged flexil gate valve (flange to flange approx. length 36.5cm) API standard | 21/16”, 35MPa/5000psi, R24 | set |
| 3 | O- ring for 4″ hammer union Fig.1002 | 5000 psi | pcs |
| 4 | 4″ Fig.1502 Union seal ring | 15000 psi, CWP. | pcs |
| 5 | O- ring for 5″ hammer union Fig.1002 | 5000 psi, GMFL | EA |
| 6 | 4” Fig.1003 Hammer Union seal ring j125×j10 | 5000 psi. | EA |
| 7 | Rotary mud hose (male female hammer union connections). | 23.5M, 70 MPa, 4”, Fig-1002, API spec-7K | pcs |
| 8 | Wafer type, manual handle Butterfly valve (medium pressure) API standard | 3″/ANSI150 | pcs |
| 9 | Wafer type, manual handle Butterfly valve (medium pressure) API standard | 4″ | pcs |
| 10 | Wafer type, manual handle Butterfly valve (medium pressure) API standard | 6” /ANSI150 | pcs |
| 11 | Wafer type, manual handle Butterfly valve (medium pressure) API standard | 8” /ANSI150 | pcs |
| 12 | Wafer type, manual handle Butterfly valve (medium pressure) API standard | 10” /ANSI150 | pcs |
| 13 | Wafer type, manual handle Butterfly valve (medium pressure) API standard | 12” /ANSI150 | pcs |
| 14 | Mud Agitator complete Assy. with gear box and motor 15HP 380-400V, 50Hz, AC (YB2-160M-4W) (impeller wheel dia 31.5”) (aaprox. Length 228cm from bottom) | Drw. Code: GKJ003.00(NJ-11A, 11kw) | set |
| 15 | SPRING CYLINDRALIC COUPLING ：HL3-42×112 (for above agitator) | GB5014-1985 | set |
| D. Centrifugal pump,Model: SB 6×8 JC- 12 ½ 55kw. Company: XBSY, China | |||
| 16 | Packing gland set | SB68J0035 | EA |
| 17 | Pin and sheath loop | SB68J0015S | EA |
| 18 | Pump Jointer | SB68J0003S | EA |
| 19 | Motor Jointer | SB68J0004S | EA |
| 20 | Oil seal | SB68J0023 | EA |
| 21 | Packing | SB68J0038 | EA |
| E. Centrifugal pump, Model: SB 5×6 FJ-12 ½ 45kw. Company: XBSY, China. | |||
| 22 | Packing gland set | SB56J0039 | EA |
| 23 | Oil seal | SB56J0010 | EA |
| 24 | Packing | SB56J0041 | EA |
| 25 | Pin and sheath loop | SB56J0018S | EA |
| 26 | Pump Jointer | SB56J0003S | EA |
| 27 | Motor Jointer | SB56J0004S | EA |
| 28 | Oil seal | SB56J0011 | EA |
| Sl. No. | Item Description | Part No./Model No./Drawing code | Unit |
| LOT-4: Mechanical Spare Parts for CAT Engines, Compressor & Solid Control Equipment. (ZJ70DBS). | |||
| A. CAT Generator, Model -3512B. | |||
| 1. | Primary air filter. | 4P-0710 | EA |
| 2. | Secondary air filter. | 4P-0711 | EA |
| 3. | Fuel filter | 1R-0756 | EA |
| 4. | Oil filter | 1R-0726 | EA |
| 5. | Kit seal and vane | 5N-8390 | Set |
| 6. | V-Belt | 8N6700 | Set |
| 7. | Element Air filter | 23458-4 | EA |
| 8. | Element Fluid filter | 128381-050 | EA |
| 9. | AO separator 124487-018 | 2013402020 | EA |
| 10. | Compressor Oil, Quincy (18.9 Ltr.) | 2309842 | Can |
| 11. | KIT line filter | 129732-051 | EA |
| 12. | Float mount assy. 4″x3″ | 1129-00 | EA |
| 13. | Rapid change bolt assy. | 12048-00 | Set |
| 14. | Screen flat API 20 | EA | |
| 15. | Screen flat API 35 | EA | |
| 16. | Screen flat API 60 | EA | |
| 17. | Screen flat API 170 | EA | |
| 18. | Lower band | 6066-55 | EA |
| 19. | Upper band | 6066-53 | EA |
| 20. | Bushing ORF-1.25010″ Desander BP URE | 6066-57 | EA |
| 21. | 1800 Victaulic urethane elbow | G0002077 | EA |
| 22. | Drive Belt | Belt-5G3V-1000 | set |
| 23. | Air filter | G0003565 | EA |
| F. Derrick Degasser, Model: Vacu FLO 1200 Dwg# 10310-00-009. Company: Derrick, USA. | |||
| 24. | Hose, 1” NPT with swivei×85” long | HYT-E716×8500New Part No. G0013736 | EA |
| 25. | Hy. Hose 1”×13” | HYT-E716×1300New Part No. : G0013740 | EA |
| 26. | Drive belt | PP1137 | EA |
| 27. | Air filter element | WLK-FRP-95-209 | EA |
Field Failure Repair Case Studies
Case 1: Mud Pump Liner Wear Causing Pressure Loss
A ZJ70DBS rig’s NOV 12-P-160 mud pump suffered severe 7” liner wear, leading to 5000PSI mud pressure depletion. Installing OEM replacement liners and piston seal rings restored full high-pressure circulation, resuming drilling operations.
Case 2: Drawworks Pneumatic Clutch Failure
The JC70DB drawworks experienced clutch slip due to a degraded air bag and friction block, halting drill string lifting. Replacing the OEM ventilated air tube clutch components fixed the issue, restoring reliable drawworks torque transmission.
Case 3: CAT Engine Fuel Filter Clogging
A clogged CAT 3512B fuel filter caused engine power loss and unstable operation. Swapping in OEM 1R-0756 fuel filters restored engine efficiency, eliminating performance fluctuations.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts exclusively compatible with the ZJ70DBS drilling rig? | Yes, this catalog features OEM-matched parts engineered solely for the Honghua ZJ70DBS rig and its配套 subsystems (NOV 12-P-160 mud pumps, CAT 3512B engines, etc.), with direct drop-in fitment. |
| Do the mud pump components meet API 7K high-pressure standards? | Absolutely, all mud pump liners, pistons, and valves comply with API 7K standards, rated for up to 5000PSI/35MPa high-pressure mud circulation. |
| Are these spares suitable for Begumganj#4(West) onshore drilling conditions? | Yes, these parts are specifically curated for the ZJ70DBS rig deployed at Begumganj#4(West), built to withstand the site’s onshore drilling environment and operational demands. |
Procurement Guidance
This ZJ70DBS rig spare parts catalog serves as both a formal oilfield procurement benchmark and a hands-on technical troubleshooting reference, designed to eliminate the risks of substandard aftermarket parts that fail prematurely, reduce long-term rig maintenance expenses, and uphold the safety and operational reliability of your Begumganj#4(West) drilling project. Every part is a verified OEM-certified component that guarantees perfect fitment, consistent high-load performance, and full adherence to API, ISO, and GB/T drilling standards, making it the definitive resource for maintaining ZJ70DBS rigs.
