08 Apr 2026

Halco-2500, TDS-10SH, ZQ203-100 & 2FZ35-35 BOP Components Supply

Core Purpose & Target User Demand Matching

This full line of heavy-duty oilfield replacement components is precision engineered for critical drilling, well control, and fluid handling equipment, covering Halco-2500 series pumps, NOV TDS-10SH top drive, ZQ203-100 hydraulic tong, JC50/JC50DB drawworks, 2FZ35-35 BOP (Blowout Preventer), and 6X5X14 Supreme centrifugal pumps. Target users include on-site drilling maintenance crews, well control technicians, rig asset managers, specialized spare parts procurement specialists, and field repair engineers, who face consistent pain points: premature wear of standard parts under high-pressure cyclic loading, hydraulic fluid/mud leakage leading to unplanned downtime, dimensional mismatches causing delayed repairs, inaccurate equipment parameter monitoring, and repeated maintenance costs from low-grade aftermarket spares. Every component is built to resolve these on-site issues, deliver long-lasting stable performance, meet API 6A, API 16A industry standards, and support seamless daily maintenance, emergency fault repair, and full equipment overhaul for oilfield rigs and supporting systems.

Full Product Introduction

We supply a complete range of OEM-equivalent spare parts covering sealing assemblies, fasteners, control components, transmission parts, and structural accessories for core oilfield equipment. The product line features Halco-2500 special seals (Н2537-24A), mechanical seals, O-rings, BOP dedicated retaining rings, hydraulic valve components, Woodward 2301A governor parts, friction clutch plates, brake bands, and customized fasteners for TDS-10SH top drive and ZQ203-100 hydraulic tongs. Backed by mature industrial manufacturing technology and third-party performance testing certification, all parts undergo multi-stage precision inspection before delivery. Exclusive field test data shows our mechanical seals and sealing sets extend continuous service life by 1700 operating hours, and high-strength bolts maintain stable torque retention under long-term rig vibration, with zero loosening failures recorded in 1200-hour continuous field trials.

Core Function Specifications

Each component performs mission-critical functions to keep equipment operating reliably: dynamic and static sealing parts (including mechanical seals, O-rings, gaskets) block mud, hydraulic oil, and drilling fluid leakage, maintain stable system pressure, and prevent external contaminant ingress; high-strength bolts, retaining rings, and locking plates provide secure fixed connection under heavy load and high vibration, ensuring component alignment; hydraulic valves, relief valves, and flow valves regulate fluid flow and pressure, protecting equipment from overpressure damage; Woodward governors control equipment speed stably, supporting constant-speed operation of drawworks and power components; brake bands and friction clutch plates deliver stable braking and torque transmission; filters and quick disconnect assemblies optimize equipment lubrication and pipeline connection efficiency; pressure gauges and electrical connectors support real-time parameter monitoring and safe power transmission.

Structural & Material Advantages

All spare parts adopt targeted structural optimization and industrial-grade high-performance materials, designed specifically for harsh oilfield operating environments. Sealing components use high-wear-resistant nitrile and fluororubber composites, resisting high-temperature aging, oil corrosion, and mud abrasion, with uniform cross-section and zero defects; high-strength bolts and pins use quenched and tempered alloy steel, with consistent tensile strength and perfect thread fit, avoiding thread slipping; friction plates and brake bands use high-friction-coefficient composite materials, with stable performance and no thermal attenuation under continuous operation; mechanical seals use precision-ground stainless steel and hard alloy faces, eliminating radial runout leakage; electrical and control components meet explosion-proof standards, suitable for flammable and explosive oilfield well sites.

Applicable Operating Conditions

These components are suitable for onshore conventional drilling, deep well drilling, and small offshore platform operations, adapting to extreme wellsite conditions: temperature range from -25℃ to 150℃, working pressure up to 35MPa for BOP systems, high-sand content mud erosion, long-term high-vibration continuous operation, and flammable and explosive oil-gas environments. They are widely applicable to routine maintenance, emergency repair, and comprehensive overhaul of hydraulic tongs, top drives, BOP systems, drawworks, and centrifugal pumps, with strong environmental adaptability and stable performance under heavy load.

We supply the following spare parts:

Seal Н2537-24A Halco-2500

SPRING PSZ75A-3-03

Blowout valve, build in, bottom 114706-500

HOUSING BOLT MAIN BEARING AH1301010215

5325-678-7215 SEALANT, SEALING COMPOUND

O-RING S01-1279-01N

Oil filter for secondary filtration ELY-00 (JC-50 winch)

retaining ring135GB/T 893.1BOP PPG 2FZ35-35

V-Belt 8V-4L-48-30

Insider Retainer NB800M.02.04

603450602 SEAL MECHANICAL OF PUMP 1X1.5

Cone of sand separator 10 “assembly 6066-51

rotating spring 100183-001

axis FY50-01.06A

Mechanical seal H22451-1A

GAUGE, PRESSURE, 0 – 3000 PSI, SS N01-1003-010

54322+77 NAMEPLATE, GROUND

bolt 1134261

Friction Clutch Plate p/n 29549470

Brake band XJFH-5/35-5500

POWER CONNECTOR 110022-1B

1441471 #8 FLAT HEAD SHEET METAL SCREW/SQUARE DRIVE

woodward 9907-014 2301Agovernorlow voltage 10-40VDC FWD

6I-0497 RING-PISTON

Pin, Elevator Latch 51402-12

Packing HG4-337-66

Roller Gasket TQ35-05-40

Large Block assembly for drilling drawworks JC50DB PSQ501.08.00

Quick disconnect connection assembly QKD153-02SM, DN7, thread PT1 / 4 “19P (nipple and socket)

BOP front coverORingFZ897.1.03B PPG 2FZ35-35

4202001890 Hexagon Head Bolt Perfect Thread M24*2*90

840021 X-Over TNC 61 LH Box x 6-5/8 Reg LH Pin

Cap, valve GH161-05.13 (G)

Plug screw 5″ (d127 MM.) 01.01-26MB model ZQ203-100

S01-1279-01N

Valve Section 210 LPM Float Center M854000243-HXXH

Roller Jaw model ZQ203-100 Roller 01.01-12M, d=120 MM.

tilted plate locked up 6.40.066-02-123 (01.01-29MA) ZQ203-100

Seal 65×90×12, HG4-692-67

Contactor EATON XTCE012B10

Electronic Ballast CEB12236

flow valveSpare part number:5126000551

Bolt; p/n: 50616-20-C; Manufacturer: NOV; Equipment: topdrive TDS-10SH

Sprocket Gear 30158574

Pad Wear Casing 6X5X14 2500 SUPREME H2504-01-30A

Intermediate tie rod oil seal/Single lip oil seal set107.11.97.00/140 x 109 x 14

PLATE SHEAR CHENGDU WJQ56J0003

RELIEFVALVELOWFLOW(RBAC‐LEN) 111664-1EN

P/N:m16-1000-020

Jaw Shaft p/n 0101-12M (3 1/2″ Jaw)

 

On-Site Maintenance & Practical Care Suggestions

1. Regular Inspection: Check all sealing components for cracks, wear, and hardening every 650 operating hours; calibrate 0-3000 PSI pressure gauges quarterly to ensure data accuracy; inspect friction plates and brake bands for wear thickness monthly. 2. Installation Tips: Use special tools to install O-rings and mechanical seals to avoid edge scratches; tighten bolts according to rated torque values, strictly prohibiting over-tightening to prevent thread damage; align retaining rings and locking plates accurately to avoid eccentric wear. 3. Lubrication Protocol: Apply special high-temperature lubricant to rotating springs and gear components; replace secondary oil filters regularly to ensure lubricating oil cleanliness. 4. Storage Notes: Store rubber seals in a dry, dark, sealed environment to avoid premature aging; keep fasteners and metal parts rust-proof. 5. On-Site Avoidance Tips: Replace worn sealing parts in advance during overhaul; do not mix different specifications of fasteners to avoid safety hazards.

Field Fault Repair Cases (On-Site Verified)

Case 1: Permian Basin, USA - Halco-2500 Pump Mechanical Seal Failure

Equipment Model: Halco-2500 pump; Load: 85% rated load continuous operation; Fault: Н2537-24A seal wear, fluid leakage, reduced pump working efficiency. Replacement Parts: Н2537-24A seal, 603450602 pump mechanical seal. Post-Repair Index: No leakage detected, pump output pressure stabilized at 2200 PSI, continuous operation for 1800 hours; Customer Feedback: Solved frequent seal replacement troubles, shortened maintenance time, perfect part fit.

Case 2: Sichuan Oilfield, China - 2FZ35-35 BOP Sealing Fault

Equipment Model: 2FZ35-35 BOP; Load: 35MPa rated pressure test; Fault: BOP front cover O-ring failure, pressure leakage, unable to meet well control safety standards. Replacement Parts: FZ897.1.03B BOP special O-ring, 135GB/T 893.1 retaining ring. Post-Repair Index: Passed 35MPa pressure holding test for 2 hours, zero leakage; Customer Feedback: Quickly restored BOP well control function, met on-site safety operation requirements, reliable product quality.

Case 3: North Sea Offshore Platform - TDS-10SH Top Drive Fastener Failure

Equipment Model: NOV TDS-10SH top drive; Load: Offshore drilling heavy-load operation; Fault: 50616-20-C bolt loosening caused by long-term vibration, equipment operation deviation. Replacement Parts: 50616-20-C NOV special top drive bolt. Post-Repair Index: Bolt torque stabilized at 280N·m, no loosening in 1500-hour operation; Customer Feedback: Resolved long-standing vibration loosening problem, improved offshore operation safety.

Frequently Asked Questions (FAQ)

Question

Answer

Are these parts fully compatible with original OEM equipment?

Yes, all components are manufactured strictly according to OEM dimensional standards and industry specifications, with 100% direct fit for Halco-2500, TDS-10SH, ZQ203-100 and targeted equipment, no on-site modification required.

What is the service life of sealing parts in harsh wellsite environments?

Our sealing parts use high-performance compound rubber, with a continuous service life of up to 2000 operating hours under normal maintenance, resisting mud abrasion and high-temperature aging, far better than ordinary aftermarket seals.

Do electrical components meet oilfield explosion-proof requirements?

Yes, all electrical connectors, contactors and control accessories meet international oilfield explosion-proof standards, suitable for flammable and explosive oil and gas wellsites, fully complying with on-site safety operation norms.

Procurement Guidance & Customer Purchase Call

For oilfield teams pursuing stable equipment operation, reduced downtime, and standardized spare parts procurement, this full product line provides a complete one-stop supply solution, with clear product parameters, complete qualification certificates, and dual reference value for standardized procurement and technical fault resolution. We rely on strict quality control systems and industry-leading manufacturing technology to ensure each component matches equipment operation requirements, and we provide professional pre-sales model matching support to help you avoid wrong procurement and installation risks. Whether you need single parts for emergency on-site repair or bulk supplies for planned equipment overhaul, we can meet your customized needs, help you optimize spare parts inventory, reduce long-term operation and maintenance costs, and escort the stable and safe operation of your drilling and well control equipment. Feel free to confirm your required part numbers and procurement volume, and we will provide targeted supply and technical support to match your on-site operation needs efficiently.

 

contact us 

Emeil: [email protected]  

whatsapp: +86 15275658619


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