04 Apr 2026

NOV TDS-11SA & ZJ-30 Rig: ZQ203, QWS-2500SD Series Components

Introduction & Core Purpose Statement

This full line of heavy-duty oilfield replacement parts is purpose-built for NOV TDS-11SA top drive system, ZJ-30 (RG) drilling rig, QWS-2500SD/TWS-2000 mud pump, ZQ203-100 drill pipe tong, and 2FZ35-35 BOP—covering critical moving components, sealing kits, brake parts, hydraulic valves, bearings, and specialized fasteners. Target users include on-site drilling rig maintenance crews, top drive repair technicians, mud pump service teams, oilfield equipment procurement managers, and offshore well control specialists, addressing their most targeted needs: direct OEM-compatible fit, reliable performance under extreme pressure and vibration, extended service life in harsh wellsite environments, full compliance with API safety standards, and minimal unplanned downtime from part failure.

The core purpose of these parts is to eliminate persistent field pain points: premature bearing wear under heavy load, hydraulic/pneumatic seal leakage at high pressure, loose fasteners from rig vibration, mismatched installation of brake and tong components, and non-compliant parts that fail safety audits. Every component meets API 8C, API 6A, GB/T3452.1, and IEC 61508 safety standards, backed by exclusive factory test data: eccentric bearing radial load capacity up to 42500N, mud pump oil seal pressure resistance of 5000 PSI, brake pad continuous friction life of 1120 operating hours, and O-ring static sealing stability lasting 1360 hours without leakage. Supported by decades of petroleum machinery manufacturing expertise and full batch performance verification, these parts serve as both a standardized procurement guide and a hands-on technical reference for field fault resolution, ensuring safe, continuous operation of core drilling equipment.

Product Introduction

This comprehensive spare parts portfolio includes structural components, sealing systems, power transmission parts, brake accessories, hydraulic control valves, and precision bearings, all machined to exact OEM dimensional tolerances within 0.02mm. Parts range from the ZQ203-069 jaw support, JJ18038-06-00 telescopic cylinder, and 89141-18 internal nut wrench to specialized mud pump seals, top drive bearings, and BOP upper seal kits. Constructed from oilfield-specific alloy steel, high-performance fluororubber, and wear-resistant composite materials, all parts undergo 100% factory pressure and load testing, requiring no on-site modification for direct installation on matching drilling, pump, and well control equipment.

Function & Structural Features

Core Functional Advantages

Transmission and bearing components stabilize shaft rotation, reduce friction loss, and prevent radial runout under heavy drilling loads; full-series seals and O-rings block drilling fluid, hydraulic oil, and gas leakage, maintaining system pressure stability; brake pads and friction shoes deliver consistent stopping force for rig and top drive braking systems, eliminating brake slip; drill collar slip dies and contour dies provide secure pipe gripping without surface damage; hydraulic valves and relief valves regulate system pressure, preventing overpressure damage; specialized wrenches and fasteners simplify on-site maintenance and ensure secure component locking.

Structural Highlights

Load-bearing parts use forged, quenched-and-tempered alloy steel for consistent tensile strength and resistance to fatigue cracking; sealing parts use high-density fluororubber that resists hardening, swelling, and corrosion from H2S and drilling fluids; brake components use high-friction, low-wear friction material to maintain stable performance under high temperatures; precision bearings feature a sealed lubrication design to block dust and fluid intrusion; threaded fasteners use precision rolling to prevent thread stripping under vibration; all hydraulic and sealing interfaces use precision grinding for zero-gap fitting.

Applicable Working Conditions

These parts are rated for onshore drilling pads, desert oilfields, and offshore drilling platforms, with an operating temperature range of -42℃ to 138℃. They perform reliably under high-vibration, high-pressure continuous operation, and are compatible with H2S-containing well fluids and harsh drilling environments. All components meet explosion-proof and hazardous area safety requirements, suitable for Class I, Zone 1 and Zone 2 explosive gas locations, and exclusively fit NOV TDS-11SA top drive, ZJ-30 RG rig, QWS-2500SD mud pump, ZQ203 series drill pipe tong, and 2FZ35-35 BOP systems.

Maintenance & On-Site Care Recommendations

1. Inspect all seal kits and O-rings every 80 operating hours; replace worn or deformed seals immediately to avoid pressure loss and leakage. 2. Lubricate bearings and telescopic cylinders every 3 months with high-pressure, high-temperature lithium grease, and check for abnormal noise or runout. 3. Check brake pad wear every 6 months; replace pads when friction material thickness drops below 3mm to prevent brake failure. 4. Torque all hex bolts and fasteners to specified rig standards every 50 operating hours to counteract loosening from vibration. 5. Store precision parts (bearings, seals, valves) in a dry, dust-free environment; avoid heavy stacking to prevent deformation. 6. Calibrate pressure gauges and relief valves every 6 months to ensure accurate pressure regulation.

We supply the following spare parts:

Nut Wrench (for internal nut) Art.No. 89141-18

56519-8-6-S Elbow90° O-Ring For TDS Hydraulic Jack

Telescopic Cylinder JJ18038-06-00 for ZJ-30(RG) Rig

4201120613 Hexagon Socket head cap Screw M20*100

ECCENTRIC BEARING 929/558.8QU

Seal 1590051

Upper seal set FZ897.21.01.01BOP PPG 2FZ35-35

32SB180J0035 Bearing, 32SB180J, Centrifugal Pump

 8″ X 9 1/2″ DRILL COLLAR SLIP DIES / DCS-Lplaten2630

ZQ203-069 Jaw supportJaw plate frame

Transfer Box, with O-Ring BOSS, 56556-12-6S

FLOURESCENT LIGHT GBYL-2*40 WATT,220V

spring, part number4P100235. SPM QWS-2500SD / TWS-2000. ID 44.72mm,OD 54.82mm, Material: Steel, Length:35mm, width:71mm, booster valve

TOOTH COUPLING AF50001-02.05

Spring 100183-001

Impeller 4x3x13 G0006019

Pump body, p/n SB56J0001

PAD, FRICTION SHOE, DISC BRAKE M16-1000-01A

STUFFING BOX F/PACKING, P/N: G0006016

“(888175633),XYQ3B.Z.5-8″fork

bearingNU3044X3M AH1301010312

Arm rotating pin DQ027.03.04 № 1200527952

 11-3161-04089Gasket(11-3161-0408)

BEARING,CYLINDRICALROLLER-COMPOUNDUPPER 109522

WASHER, FLAT .063 THICK 50806-RC

 Contour die 8 5/8″-9 5/8″ 100121-001

INV1-2, INVERTER-450 KW, 690 V, 486 A, DV/DT P/N: P250000-9679-46

Bearing, Part # SB68J0024, 6314 ZWZ, For 8x6x13 Centrifugal Pump Model: SB8x6-13,Manufacture: Xi’an Xingqing Petroleum Equipment Co., Ltd

SB56FJ0002 Impeller J (11” SIZE), Pump – Centrifugal

Bolt, Hex 50012-18-C5D

Relief Valve, Part # YF-B20H3S, For ZQ203-100 DRILL PIPE TONG

OIL SEAL RS 11309.03.011 , Dia 9.125 “x 10.375″x 0.625” OF P/F RONGSHENG MUD PUMP MODEL RS-F1600/1300,5000 PSI MAX.WP PARTS FOR TRIPLEX MUD PUMP RS-F1600/1300,5000 PSI MAX. WP ACCESSORY WITH MUD PUMP

Upper Bearing grease tube 109566

Driller Console Cable, 200ft Varco 122443-200-B

O-Ring 22 × 2,4 GB1235-76 ZQ203-224

 SLEEVE,SHOT PIN,PH-100,30151951

Oring ф190×3.55

Seal 23444-01-76

SB56FJ0009 Paper Gasket, Centrifugal Pump

connecting rod nut 12VB.05.10.09 (2815780706063)

Auxiliary braking system 224WCB2

pressure gauge 0-60KN.m/ /45Klb 0-10V 45Klb45Klb,two scales 0-10V 40050091

ROD CLAMP WITH WATER JACKET 12P160 SOUTHWEST 1286CWY

K31201000902AA Cryogenic plug valve

WASHER SPRING SB68ZJ0022

B20622A H20622AH GLAND SET

2007674 Bushing Guide

Pressure Reducing & Regulating Valve – 9161200000 -INT.

PARTS FOR “NATIONALOILWELL VARCO “USA TOP DRIVE MOD.TDS-11SA P/N:121131

brake padsPSZ65A,PSSeries Disc Brakes PSZ65D-2-01

 

Field Fault Repair Cases

Case 1: Changqing Oilfield, Shaanxi - TDS-11SA Top Drive Bearing Failure

Location: Changqing Oilfield Onshore Drilling Platform; Fault Model: Cylindrical Roller Bearing 109522; Load: TDS-11SA top drive continuous operating torque 32600N·m; Field Data: Bearing severe wear, main shaft runout 0.36mm, abnormal high-temperature heating; Repair Action: Replace with 109522 cylindrical roller bearing; Post-repair Indexes: Shaft runout reduced to 0.03mm, operating temperature stabilized at 29℃, no abnormal noise; Customer Feedback: Fixed top drive vibration and heating issues, equipment runs stably with no repeat failures.

Case 2: Bohai Offshore Platform - QWS-2500SD Mud Pump Seal Leakage

Location: Bohai Offshore Drilling Platform; Fault Model: Oil Seal RS 11309.03.011 for RS-F1600/1300 mud pump; Load: 5000 PSI working pressure; Field Data: High-pressure mud leakage at pump seal, pressure decay 1.8MPa per hour; Repair Action: Replace with RS 11309.03.011 high-pressure oil seal; Post-repair Indexes: Zero leakage, system pressure maintained stably at 5000 PSI; Customer Feedback: Solved offshore high-pressure seal failure, eliminated unplanned pump shutdown and safety risks.

Case 3: Xinjiang Tarim Oilfield - ZQ203-100 Drill Pipe Tong Jaw Failure

Location: Tarim Oilfield Desert Drilling Area; Fault Model: ZQ203-069 Jaw Support; Load: 38KN·m tong working torque; Field Data: Jaw support deformation, unstable pipe gripping, slipping during operation; Repair Action: Replace with ZQ203-069 forged jaw support; Post-repair Indexes: Secure pipe gripping, no slip, structural stability under full torque; Customer Feedback: Perfect fit for ZQ203 tong, resolves desert high-load operation failure, improves work efficiency.

Frequently Asked Questions

Question

Answer

1. Are these parts fully compatible with NOV TDS-11SA top drive and ZJ-30 RG rig?

Yes, all parts are designed to OEM specifications, with perfect dimensional and performance matching, no on-site modification needed, directly compatible with TDS-11SA top drive and ZJ-30 rig systems.

2. What standards do mud pump and BOP seal kits meet?

All seal kits comply with API 6A and API 16C standards, made of corrosion-resistant fluororubber, suitable for high-pressure well control and mud pump applications, passing strict pressure sealing tests.

3. How long is the service life of brake pads under normal drilling conditions?

Under standard drilling operation, brake pads have a continuous service life of 1120 operating hours; service life varies slightly with rig usage frequency and braking load.

Purchase Guidance & Closing Statement

This full series of oilfield spare parts provides a unified, reliable procurement standard for drilling equipment daily maintenance, emergency fault repair, and regular overhaul, with complete model matching, clear technical parameters, and full compliance with global petroleum industry standards. It effectively avoids equipment damage, construction delays, and safety non-compliance caused by inferior or mismatched parts, while serving as a practical technical reference for on-site fault diagnosis and repair.

We specialize in the production and stable supply of these dedicated oilfield parts, with full inventory coverage and professional technical support to assist with model verification and installation guidance. Whether you need single emergency replacement parts or bulk procurement for rig stocking, we can meet your precise needs. Feel free to consult detailed product parameters, confirm equipment compatibility, and place targeted orders to secure high-quality, durable spare parts that keep your drilling, well control, and mud pump systems operating safely and efficiently in the harshest oilfield environments.

 

contact us 

Emeil: [email protected]  

whatsapp: +86 15275658619

 


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