BK, YX Series Hydraulic Brake Components with NXQ-F6.3/200 Accumulator

1. Core Application Purpose & Target User Demand

This professional suite of BK brake structural parts, YX sealing and mechanical accessories and supporting hydraulic system components centered on NXQ-F6.3/200 accumulators and A10V constant pressure plunger pumps is customized for heavy-duty hydraulic brake and power supply systems of oilfield drilling and workover rigs. It precisely serves field maintenance technicians, equipment overhaul teams and industrial parts procurement specialists, targeting prevalent on-site pain points including unstable hydraulic pressure output, brake caliper frame vibration, sealing medium leakage, oil circuit contamination and real-time parameter monitoring deviation under long-duration heavy-load cyclic operation. All components are manufactured per GB and JB/ZQ industrial authoritative standards, with operational stability validated through 9200 hours of continuous field endurance testing. This product portfolio delivers unified procurement specification benchmarks and practical fault troubleshooting solutions, satisfying dual core demands of standardized parts replacement and professional hydraulic system technical maintenance.

2. Product Introduction

This full supporting assembly covers all core functional, wearable and power components for integrated hydraulic brake systems. It includes YX series multi-specification sealing rings, clevis pins, sleeves and baffle plates, BK series emergency caliper cylinder assemblies, hydraulic cylinders, cylinder covers, support arms, levers, springs and retaining rings. The lineup integrates core power and control units such as A10V constant pressure plunger pumps, NXQ-F6.3/200 accumulators, BK-F-3Y hydraulic reversing valves and TK30 valve groups. It is also equipped with RFA oil return filters, QUQ2 air filters, HFH2 pressure measuring hoses, YW2-150 oil temperature liquid level gauges, YN60-III 0-16MPa pressure gauges and PSZ75B caliper frames, matched with complete standard fasteners and pipe joints. Every accessory adopts precision finishing and anti-fatigue heat treatment, featuring high assembly interchangeability for oilfield hydraulic system daily maintenance and full overhaul.

3. Core Functional Description

3.1 Stable Hydraulic Power Output & Pressure Storage

A10V constant pressure plunger pumps cooperate with NXQ-F6.3/200 accumulators to form a stable hydraulic power supply unit. This configuration solves the core pain point of instantaneous hydraulic pressure drop during high-frequency braking, maintaining continuous and stable system pressure output under variable heavy-load working conditions.

3.2 Precise Brake Execution & Structural Stabilization

BK emergency caliper cylinder assemblies and PSZ75B caliper frames form rigid braking execution structures. Matching support arms, lever and spring components compensate operational gaps, eliminating braking jitter and incomplete reset faults caused by long-term mechanical wear and vibration.

3.3 Full-System Filtration & Parameter Monitoring

RFA oil return filters and QUQ2 air filters realize dual purification of hydraulic oil and intake air, avoiding oil circuit blockage and component abrasion from impurities. YW2-150 and YN60-III monitoring instruments achieve real-time feedback of system temperature, liquid level and pressure, preventing hidden faults caused by abnormal operating parameters.

4. Structural Characteristics

All accessories adopt modular standardized structural design with unified industrial assembly tolerances, supporting rapid on-site disassembly and replacement without secondary calibration. Core hydraulic cylinder and pump components adopt high-pressure resistant integral forging technology, with strong deformation resistance under long-term hydraulic impact. Multi-specification YX and BK-SR sealing parts form multi-layer closed-loop sealing structures to completely block medium leakage and dust invasion. Optimized caliper frame and support arm structures enhance overall structural rigidity, while filter and pressure measuring accessories ensure long-term clean and stable operation of the hydraulic system.

5. Applicable Working Conditions

This series of hydraulic brake and power components is suitable for onshore oilfield drilling rigs, workover equipment and heavy hoisting machinery hydraulic systems. It stably adapts to harsh open-air working environments with ambient temperatures ranging from -25℃ to 72℃, high dust concentration and continuous vibration impact, maintaining stable power output, braking performance and parameter monitoring accuracy under long-term intermittent heavy-load cyclic operation.

6. On-site Maintenance Suggestions (Engineer Practical Experience)

Based on frontline oilfield maintenance experience, hydraulic sealing rings and cylinder wearable parts require inspection every 3 months and full replacement every 8 months to prevent leakage and pressure attenuation. Filter elements and air filters need regular replacement to ensure oil circuit cleanliness. Accumulators and pressure gauges should be calibrated periodically to guarantee parameter accuracy. Disordered assembly of mismatched fasteners is strictly prohibited to avoid structural gap deviation. Standardized maintenance can extend the continuous stable operation duration of matched hydraulic systems by 3200 working hours compared with irregular maintenance modes.

We supply the following spare parts:

7. Field Fault Maintenance Cases

7.1 Hydraulic Pressure Drop Fault in Daqing Oilfield

Location: Daqing Oilfield, Heilongjiang; Equipment Model: Drilling rig hydraulic brake system; Operating Load: 91% rated load; Fault Data: Instant pressure drop 1.2MPa during braking; Repair Scheme: Replace aging YX-SR sealing ring and recalibrate NXQ-F6.3/200 accumulator; Post-repair Index: System pressure maintains constant rated value during operation; Customer Feedback: Hydraulic power supply stability fully meets heavy-load construction demands.

7.2 Caliper Frame Vibration Fault in Tarim Oilfield

Location: Tarim Oilfield, Xinjiang; Equipment Model: PSZ75B caliper frame assembly; Operating Load: full continuous load; Fault Data: Obvious frame vibration, unstable braking; Repair Scheme: Replace worn BK support arm and deformed spring parts; Post-repair Index: Frame operates smoothly without vibration, braking force uniform; Customer Feedback: Braking system structural stability significantly improved.

7.3 Oil Circuit Blockage Fault in Changqing Oilfield

Location: Changqing Oilfield, Shaanxi; Equipment Model: Hydraulic circulating oil circuit; Operating Load: 88% rated load; Fault Data: Impurity accumulation leads to slow hydraulic response; Repair Scheme: Replace RFA filter element and clean internal oil circuit; Post-repair Index: Oil circuit unobstructed, hydraulic response restored to factory standard; Customer Feedback: System operation sensitivity completely recovered.

7.4 Parameter Monitoring Inaccuracy in Shengli Oilfield

Location: Shengli Oilfield, Shandong; Equipment Model: Hydraulic parameter monitoring system; Operating Load: intermittent heavy load; Fault Data: Pressure and temperature data deviation; Repair Scheme: Replace aging pressure measuring hose and recalibrate monitoring gauges; Post-repair Index: All monitoring data accurate and real-time; Customer Feedback: System fault early warning capability reliable and effective.

8. Product FAQ

9. Technical Standard & Procurement Guidance

All products are manufactured and inspected in strict accordance with GB70-85, GB5780-86, JB/ZQ4444-1997 and other authoritative national and industrial specifications, with complete field test data and performance verification to meet petroleum machinery industrial-grade operation standards. This full set of BK, YX series hydraulic brake accessories and supporting power, filtration and monitoring components provides standardized parameter benchmarks for batch procurement, daily maintenance and overall equipment overhaul of oilfield hydraulic systems. It also acts as a professional technical reference for on-site staff to diagnose hydraulic pressure fluctuation, structural vibration, oil circuit blockage and monitoring deviation faults, guiding standardized disassembly, assembly and maintenance operations. Verified by long-term practical application in multiple major oilfields, the product portfolio delivers outstanding environmental adaptability and long-cycle operational durability. Users can select targeted matching accessories according to actual equipment models, operating loads and fault characteristics to complete refined equipment maintenance, stabilize hydraulic system performance and reduce equipment failure frequency. We provide standardized industrial-grade hydraulic system supporting parts for oilfield mechanical equipment renovation and daily maintenance, supporting users to realize standardized equipment operation and efficient fault resolution.