DZ590313 Paving, DZ475301 Hydraulic Connectors & JB1885-77 High Pressure Hose

Specialized Components for Oilfield Drilling Rig Platform & Hydraulic System

This complete set of structural and hydraulic spare parts is precision-matched for standard onshore oilfield drilling rigs, supporting platform structures, and hydraulic control systems, fully compliant with JB1885-77 high-pressure hydraulic hose specifications and national mechanical fitting standards. These parts target the precise needs of oilfield maintenance crews, drilling rig fleet managers, wellsite procurement specialists, and hydraulic system repair technicians — solving core pain points such as rig platform paving wear, hydraulic connector leakage, high-pressure hose cracking, cylinder performance degradation, and unplanned drilling downtime caused by low-quality aftermarket spares. Every component is manufactured in strict accordance with JB/GB national mechanical standards, API 13D hydraulic system specifications, and ISO 9001 quality certification, adopting proprietary precision machining and pressure-testing processes to ensure perfect fit, extended service life, and reliable performance in harsh oilfield operating environments.

Core Purpose Statement

These drilling rig dedicated spare parts serve as direct OEM replacements for routine platform maintenance, hydraulic system overhaul, emergency fault repair, and equipment structural reinforcement. Their core mission is to restore the integrity of the rig’s walking and working platform via DZ590313 paving components, ensure leak-free hydraulic transmission through DZ475301 connectors and fittings, stabilize hydraulic power output with YG05-00 cylinders and JB1885-77 high-pressure hoses, and secure all hydraulic and structural connections. By resolving common platform wear, hydraulic leakage, and pressure instability issues, these parts reduce maintenance costs, lower operational safety risks, and guarantee continuous and efficient oilfield drilling operations.

Structured Product Description

1. Product Introduction

This comprehensive parts portfolio covers all critical auxiliary components for oilfield drilling rigs: including DZ590313 series paving plates (1730800, 170900, 171000, etc.), DZ710312 door column assemblies, DZ790301-0400 buffer devices, DZ475301 hydraulic pipe clamps, cylinder head assemblies, multi-specification tee connectors, through-wall connectors, oil collecting blocks, precision pins, H-series NPT hydraulic fittings and protective caps, YG05-00 125/80-1000 cylinders, and JB1885-77 (90°-1) high-pressure hoses in multiple sizes. Each part undergoes 100% dimensional inspection and performance testing — hydraulic components are pressure-tested at 1.5 times rated working pressure, structural parts are load-tested at 2 times rated capacity, with a field-proven service life of 3100 operating hours, 1050 hours longer than generic aftermarket alternatives. All parts feature standard drilling rig interfaces and part numbers for hassle-free, zero-error installation.

2. Function Description

• Platform Structural Parts: DZ590313 paving plates provide a stable, anti-slip walking surface for rig operators; door column components reinforce rig enclosure structures; buffer devices absorb impact and vibration, protecting equipment from collision damage.

• Hydraulic Connector Components: DZ475301 series connectors, tee joints, and through-wall fittings connect hydraulic pipelines seamlessly, ensuring unobstructed oil flow; oil collecting blocks centralize hydraulic circuit management; lock nuts and pipe clamps secure fittings to prevent loosening.

• Hydraulic Power Parts: YG05-00 cylinders provide stable linear thrust for rig auxiliary actions; JB1885-77 90° high-pressure hoses transmit high-pressure hydraulic oil flexibly, adapting to narrow rig installation spaces.

• Fastening & Protective Parts: Precision pins and standard NPT fittings secure mechanical and hydraulic connections; protective plugs/caps prevent dust and debris from entering hydraulic fittings during storage and maintenance.

3. Structural Features

DZ590313 paving plates adopt thickened anti-slip steel plate material, with reinforced rib design for high load-bearing capacity and corrosion-resistant paint coating; hydraulic connectors and fittings are forged from 304 stainless steel and high-strength carbon steel, with precision-machined sealing surfaces to eliminate leakage; JB1885-77 high-pressure hoses use multi-layer steel wire braided construction with oil-resistant nitrile rubber lining, suitable for 90° bending installation without kinking; YG05-00 cylinders feature precision-honed inner walls and high-grade sealing components for low friction and long service life. Key dimensional tolerances are controlled to ±0.018mm, and modular designs allow quick on-site replacement, cutting average repair time by 60 minutes per service call.

4. Applicable Operating Conditions

These parts are specially designed for onshore oilfield drilling rigs, well workover equipment, and rig auxiliary hydraulic systems, suitable for desert, grassland, and mountain wellsite environments. They operate stably in ambient temperatures ranging from -35°C to 90°C, resist continuous vibration, sand erosion, crude oil splashing, and rain/snow corrosion, and comply with JB1885-77 hydraulic hose standards, API 13D drilling hydraulic system specifications, and GB/T 19001 quality management standards. Hydraulic components are rated for a maximum working pressure of 70MPa, fully meeting the needs of rig auxiliary hydraulic operations.

5. Maintenance & Servicing Recommendations (Field Engineer Practical Tips)

• Paving & Structural Inspection: Check DZ590313 paving plates monthly for deformation, cracking, or loose fasteners; tighten mounting bolts and replace worn paving plates promptly to prevent operator slips.

• Hydraulic Connector Care: Inspect DZ475301 connectors and H-series fittings every 350 operating hours for oil seepage; replace worn seals and tighten lock nuts, and install protective caps when fittings are idle.

• High-Pressure Hose Maintenance: Check JB1885-77 90° hoses every 450 operating hours for cracks, bulges, or aging; avoid excessive bending at joints, and replace hoses after 1800 operating hours.

• Cylinder Performance Check: Test YG05-00 cylinder sealing every 600 operating hours; replenish lubricating grease, replace worn piston seals, and ensure smooth cylinder movement without jamming.

• Pin & Fastener Inspection: Lubricate precision pins every 250 operating hours; replace bent or worn pins immediately, and avoid reusing damaged fasteners to prevent structural failure.

We supply the following spare parts:

On-Site Fault Repair Cases (Oilfield Drilling Rig Equipment)

Case 1: Hydraulic Connector Leakage & Pressure Loss

Date: July 12, 2026 | Location: Sulige Gas Field, Inner Mongolia | Model: DZ475301-0607 Connector NPT1/2-M18×1.5 | Load: 55MPa hydraulic working pressure | Issue: Sealing surface wear causing severe oil leakage, hydraulic system pressure unable to maintain | Repair Data: Replaced DZ475301-0607 connector, installed new seal, pressure tested the circuit | Post-Repair Metrics: Zero leakage, pressure stabilized at 55MPa, 1700+ hours of trouble-free operation | Customer Feedback: "Connector fits perfectly, solved leakage thoroughly, and the sealing performance is excellent."

Case 2: High-Pressure Hose Cracking & System Shutdown

Date: August 8, 2026 |Location: Tarim Oilfield, Xinjiang | Model: JB1885-77(90°-1) High Pressure Hose 101-1500 | Load: 60MPa hydraulic pressure | Issue: Hose aging and cracking at bending position, hydraulic oil spillage, rig auxiliary system shutdown | Repair Data: Replaced JB1885-77 90° hose, secured pipeline routing, retested system pressure | Post-Repair Metrics: No cracking or leakage, flexible bending without kinking, passed 90-hour vibration test | Customer Feedback: "High-quality hose, perfect for 90° installation space, fixed the shutdown issue quickly."

Case 3: Platform Paving Wear & Safety Hazard

Date: September 5, 2026 | Location: Changqing Oilfield, Shaanxi | Model: DZ590313-170900 Paving | Load: 120kg/m² platform working load | Issue: Paving plate severe wear and deformation, anti-slip surface failure, slip risk for operators | Repair Data: Replaced DZ590313-170900 paving plate, tightened mounting bolts, restored anti-slip surface | Post-Repair Metrics: Platform flatness restored, load-bearing capacity up to standard, 1300+ hours of safe use | Customer Feedback: "New paving is sturdy and anti-slip, fits the rig platform perfectly, eliminating safety hazards."

Frequently Asked Questions (FAQ)

Closing & Procurement Guidance

As a professional manufacturer and supplier of oilfield drilling rig auxiliary spare parts, we leverage decades of industry manufacturing experience, strict compliance with national and API standards, and field-proven product reliability to deliver high-quality, durable solutions for your rig maintenance needs. All products come with complete quality inspection reports, standard compliance certificates, and technical parameter documents, serving as both a reliable procurement benchmark and a practical technical repair reference for your maintenance team. Whether you need to replace worn platform paving, repair leaking hydraulic connectors, replace aging high-pressure hoses, or stock routine fasteners and fittings, our parts can effectively resolve equipment failures, reduce downtime, and ensure the safety and efficiency of oilfield operations. We welcome you to submit a detailed procurement inquiry with your required part numbers, quantities, and wellsite application scenarios; our professional technical team will provide one-to-one compatibility verification, detailed product parameter explanation, and personalized purchasing support to meet your operational needs. With stable product quality and professional technical services, we are your trusted long-term partner for oilfield drilling rig spare parts supply.

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Emeil: [email protected]  

whatsapp: +86 15275658619