11 Mar 2026

ZJ50 Oil Suction Filter TF-400×180F-Y, DQ70BSD Spring Washer 4205030100

Product Introduction: High-Quality Spare Parts for ZJ50, DQ70BSD/BSC, PSZ75A/BS Drilling Equipment

This document focuses on the supply of premium, OEM-compatible spare parts designed for key drilling equipment models, including ZJ50 (ZJ50WSDL, ZJ50DB), DQ70BSD, DQ70BSC, PSZ75A, PSZ75B, and related drilling rigs. The product lineup covers critical components such as the ZJ50 oil suction filter (3150LDB TF-400×180F-Y), DQ70BSD spring washer (4205030100), PSZ75A working tongs cylinder, B1032 frame plate, 6I2504 air filter, Rexroth valve (R431009150/P64733-0/8P-1S), and 1R-0726 filter element. All parts are engineered to meet API 7K, ISO 9001, and GB standards, ensuring precise compatibility with the target equipment. Our core purpose is to deliver reliable, durable spares that resolve common equipment failures, minimize unplanned downtime, and maintain the efficiency and safety of drilling operations—critical for onshore and offshore drilling projects.

Core Purpose & Target User Needs

Drilling equipment such as ZJ50 rigs, DQ70BSD/BSC units, and PSZ75A/BS working tongs are the backbone of oil and gas drilling operations, where even a small component failure can halt drilling, resulting in losses of $8,000–$15,000 per hour. Target users—drilling contractors, rig maintenance teams, and oilfield service providers—face persistent pain points: incompatible spares leading to equipment damage, substandard parts failing under high pressure (up to 35 MPa) and harsh conditions, difficulty sourcing hard-to-find components (e.g., ZJ50 rope stabilizer guide wheel, PSZ75B-70D-B-03 hex head bolt), and costly delays from incorrect part selection. Our spare parts lineup directly addresses these challenges by offering 100% compatible, certified components that match the original equipment’s specifications. Whether you need a replacement filter element (1R-0726, 131-8822), sealing ring (S660-7006400, P1700356AA), or structural part (B1032 frame plate, lower drive shaft 5000700091), our products ensure easy installation, long service life, and seamless integration—keeping your drilling equipment running reliably.

Product Line Details

1. Filters & Filter Elements: Contamination Control for Equipment Protection

Our filter lineup includes critical contamination-control components for drilling equipment, such as the ZJ50 oil suction filter (3150LDB TF-400×180F-Y), 6I2504 air filter, 1R-0726 filter element, 131-8822 filter element, and 6835322 filter element (8152010). These parts are designed to remove dust, debris, and contaminants from oil, air, and fluid systems, protecting internal components from wear and failure.

Function Description

Filters and filter elements prevent harmful contaminants from entering critical systems of drilling equipment. The ZJ50 oil suction filter (TF-400×180F-Y) is specifically designed for ZJ50 rigs, with a filtration precision of 180 microns and a flow rate of 400 L/min, ensuring clean oil is supplied to the rig’s hydraulic and lubrication systems. The 6I2504 air filter removes dust and debris from incoming air (filtration efficiency of 99.7% for particles ≥ 2 microns), protecting engines and compressors from abrasive wear. Filter elements like 1R-0726 and 131-8822 are direct replacements for OEM parts, maintaining system cleanliness and preventing clogs that can cause pressure drops and equipment failure.

Structural Features

All filters are constructed with high-quality materials tailored to drilling environments: the ZJ50 oil suction filter (TF-400×180F-Y) features a stainless steel filter mesh (304 SS) for corrosion resistance and a durable carbon steel housing to withstand high pressure (up to 1.6 MPa). The 6I2504 air filter uses a pleated cellulose-synthetic blend media for maximum dirt-holding capacity (up to 45 grams) and a rigid plastic frame to maintain shape under high air flow. Filter elements (1R-0726, 131-8822) have a precision-machined seal to ensure a tight fit, with a bypass valve that opens at 10–15 PSI to prevent system starvation if the element becomes clogged. All filters meet ISO 16889 standards for filtration performance.

Applicable Working Conditions

Ideal for ZJ50 (ZJ50WSDL, ZJ50DB) rigs, DQ70BSD/BSC units, and other drilling equipment operating in harsh onshore and offshore environments. They perform reliably in temperatures ranging from -40°F to +250°F, humidity up to 95% (non-condensing), and dusty, muddy conditions common in drilling sites. These filters are critical for hydraulic systems, engine air intake, and oil lubrication systems, where contamination control is essential to extend equipment service life.

2. Seals & Gaskets: Leak Prevention & System Integrity

Our seals and gaskets include the O-type sealing ring (S660-7006400, P1700356AA), O-ring (165X7 GB3452.1-82), packing washer (P100652 CL9007.01), seal (6Y-4003), seal assembly (23014441), and gasket set (B025P10)—all designed to prevent leaks of oil, hydraulic fluid, and other media.

Function Description

Seals and gaskets create a tight, leak-proof barrier between mating components, ensuring no loss of critical fluids and maintaining system pressure. The O-type sealing ring S660-7006400 is used in high-pressure hydraulic systems (up to 35 MPa), providing a flexible, durable seal that withstands vibration and temperature changes. The packing washer P100652 (CL9007.01) and seal 6Y-4003 prevent leaks in valve assemblies and pipe joints, while the gasket set B025P10 includes all necessary gaskets for equipment maintenance, ensuring consistent sealing performance across multiple components. These parts prevent fluid loss, which can lead to reduced system efficiency and equipment damage.

Structural Features

Seals are made from high-grade nitrile rubber (NBR) or fluororubber (FKM) for excellent oil, chemical, and temperature resistance. The O-ring 165X7 GB3452.1-82 meets national standards with precise dimensional tolerance (±0.05mm) to ensure a perfect fit. The packing washer P100652 features a reinforced fiber core for rigidity and a rubber coating for superior sealing. The seal assembly 23014441 includes multiple seal layers to handle high pressure and prevent leakage in critical joints. All seals and gaskets are tested to withstand extreme conditions, meeting API 7K standards for durability and performance.

Applicable Working Conditions

Suitable for hydraulic systems, valve assemblies, pipe joints, and engine components of ZJ50 rigs, DQ70BSD/BSC units, and PSZ75A/BS working tongs. They operate reliably in high-pressure (up to 35 MPa) and high-temperature (up to 250°F) environments, resisting drilling mud, oil, and harsh chemicals. These seals are essential for maintaining system integrity in dusty, muddy drilling conditions where leaks can cause equipment failure and environmental hazards.

3. Mechanical & Structural Components: Stability & Smooth Operation

Our mechanical and structural parts include the B1032 frame plate, DQ70BSD spring washer (4205030100), 648402055 locknut bearing, bearing 97520E, lower drive shaft (5000700091), gooseneck (DQ70BSC 7001030200), and rope stabilizer guide wheel (ZJ50WSDL)—all critical for the structural stability and smooth operation of drilling equipment.

Function Description

Mechanical and structural components provide support, stability, and smooth movement for drilling equipment. The B1032 frame plate serves as a structural base for key components, distributing loads evenly to prevent deformation. The DQ70BSD spring washer (4205030100) maintains bolt tension, preventing loosening due to equipment vibration. The 648402055 locknut bearing and 97520E bearing reduce friction between rotating parts, ensuring smooth operation of shafts and gears. The ZJ50WSDL rope stabilizer guide wheel keeps drilling ropes aligned, reducing wear and preventing rope failure. These parts work together to ensure the equipment operates safely and efficiently.

Structural Features

Structural parts like the B1032 frame plate are made from high-strength carbon steel (AISI 1045) with a heat-treated surface (Rockwell hardness HRC 28–32) for durability and load-bearing capacity (up to 50,000 lbs). The DQ70BSD spring washer (4205030100) is made from stainless steel (304 SS) to resist corrosion, with a precision-machined design to maintain consistent tension. Bearings (648402055, 97520E) are constructed from high-carbon chromium steel (AISI 52100) with sealed designs to prevent contamination. The ZJ50WSDL rope stabilizer guide wheel features a hardened steel outer ring and a precision bearing for smooth rotation. All mechanical components meet ISO 3408 standards for precision and durability.

Applicable Working Conditions

Ideal for the structural and mechanical systems of ZJ50 rigs, DQ70BSD/BSC units, and other drilling equipment. They withstand high loads, vibration (up to 5g), and extreme temperatures (-20°F to +220°F) common in drilling operations. These components are critical for the rig’s frame, shafts, gears, and rope systems, where stability and smooth operation are essential for safety and efficiency.

4. Valves & Hydraulic Components: Control & Pressure Regulation

Our valve and hydraulic components include the three-position four-way valve (P59335, P59339), overflow valve (Y40-20 FKQ125-3), Rexroth valve (R431009150/P64733-0/8P-1S), eight-position shift valve (P55556-3/R431003806), pneumatic manual pressure regulating valve (JYSQ-21.25), and PSZ75A working tongs cylinder—key for controlling hydraulic systems and pressure.

Function Description

Valves and hydraulic components regulate fluid flow and pressure, ensuring precise control of drilling equipment. The three-position four-way valve (P59335, P59339) controls the direction of hydraulic fluid, actuating components like cylinders and motors. The overflow valve (Y40-20 FKQ125-3) protects hydraulic systems from overpressure, opening at a preset pressure (20 MPa) to release excess fluid. The Rexroth valve (R431009150/P64733-0/8P-1S) provides precise flow control, maintaining system efficiency. The PSZ75A working tongs cylinder actuates the working tongs, providing the clamping force (up to 75 kN) needed for pipe handling. These components ensure the hydraulic system operates safely and accurately.

Structural Features

Valves are constructed from high-grade steel (AISI 316 SS) for corrosion resistance, with precision-machined seats and spools for leak-free operation. The overflow valve (Y40-20 FKQ125-3) features a adjustable pressure setting (15–20 MPa) and a durable spring for reliable performance. The Rexroth valve meets international hydraulic standards, with a compact design for easy installation. The PSZ75A working tongs cylinder has a chrome-plated piston rod for corrosion resistance and a durable steel cylinder body to withstand high pressure (up to 35 MPa). All hydraulic components meet ISO 10439 standards for safety and performance.

Applicable Working Conditions

Suitable for the hydraulic systems of ZJ50 rigs, DQ70BSD/BSC units, and PSZ75A/BS working tongs. They operate reliably in high-pressure (up to 35 MPa) and high-temperature (up to 200°F) environments, resisting hydraulic fluid degradation and contamination. These components are critical for pipe handling, rig positioning, and other hydraulic-driven operations, where precise control and pressure regulation are essential.

Maintenance & Care Recommendations

Proper maintenance of drilling equipment spares is essential to extend service life, reduce downtime, and ensure safe operation. Below are practical, easy-to-follow tips for each component category, tailored to the harsh conditions of drilling sites:

 Filters & Filter Elements: Replace filter elements (1R-0726, 131-8822) every 250 operating hours or if pressure drop exceeds 15 PSI. Clean the ZJ50 oil suction filter (TF-400×180F-Y) monthly to remove debris, and replace the 6I2504 air filter every 1,000 operating hours or when the filter media appears clogged.

 Seals & Gaskets: Inspect seals (S660-7006400, P1700356AA) and gaskets weekly for leaks, cracks, or wear—replace immediately if damage is detected. Before installation, clean mating surfaces and apply a thin layer of grease to ensure a tight seal. Replace the gasket set B025P10 every 1,500 operating hours or during major equipment maintenance.

 Mechanical & Structural Components: Lubricate bearings (648402055, 97520E) with high-temperature grease (NLGI Grade 2) every 200 operating hours. Inspect the B1032 frame plate and lower drive shaft (5000700091) quarterly for cracks or deformation—replace if damage is found. Tighten DQ70BSD spring washers (4205030100) monthly to prevent bolt loosening from vibration.

 Valves & Hydraulic Components: Inspect valves (P59335, R431009150) monthly for leaks and proper operation—clean valve seats if debris is present. Test the overflow valve (Y40-20 FKQ125-3) annually to ensure it opens at the preset pressure (20 MPa). Replace hydraulic cylinder seals every 2,000 operating hours to prevent fluid leaks.

We supply the following spare parts:

otype sealing ring S660-7006400

spring washer DQ70BSD 4205030100

PSZ75AWorking tongs cylinder

B1032 Frame Plate

Oil suction filter ZJ50 3150LDB TF-400×180F-Y

648402055 Locknut Bearing

air filter 6I2504

Gooseneck DQ70BSC 7001030200

Gate assembly FZ897.21.10.00

Packing washer P100652 (CL9007.01)seal 6Y-4003

Rope stabilizer guide wheel\ZJ50WSDL

Working valve 4900450003

6835322filter element 8152010

Clutch ATD230 146605A

Vent plug Z07120200001AA

Tee joint DQ70BSD 9752020005

Semicircle retaining ring BK-8-6A

RJ11172.15.03 lower gate body

Fan guard 7C1005

Three-position four-way valve P59335, P59339

sprocket P3500057AA

Friction plate 515881

overflow valve Y40-20 FKQ125-3

External gear E790-04000062

adjusting nutBK-7-7A10

PSZ75B-70D-B-03hex head bolt

23041786valve guide 1227374

Brake belt assembly\ZJ50DB 106.27.51.00

Bearing 97520E

otype sealing ring P1700356AA

lower drive shaft 5000700091

set screw DQ70BS T754020204 40×52

DAHF3083 AHF Throat Bush

F6058HE1 Slurry Pump Impeller

BushingBK-3-6C

E4147A05type impeller

Gasket setB025P10

R431009150/P64733-0/8P-1S Rexroth valve

Pneumatic manual pressure regulating valve JYSQ-21.25

filter element 131-8822

oRing165X7 GB3452.1-82

BushingDBS75-2-13

impellerCH1127A05

Bushing P1400051AA

Tachometer 197-7348

Tee joint\ZJ50 M16-1/4″

Eight position shift valve P55556-3/R431003806

seal assembly 23014441belt 9L6639/8560

crank DQ70BSC 9703330011 Φ90-150/5

filter element 1R-0726

 

Field Fault Repair Cases

Below are 3 real-world, short fault repair cases to help maintenance teams quickly diagnose and resolve common issues with the listed spares, minimizing downtime and equipment damage:

Case 1: ZJ50 Oil Suction Filter (TF-400×180F-Y) Clogging Causing Hydraulic System Failure

Problem: A ZJ50 rig’s hydraulic system lost pressure, halting drilling operations. Diagnosis: The ZJ50 oil suction filter (TF-400×180F-Y) was clogged with debris, restricting oil flow to the hydraulic pump. Repair: Replaced the filter, flushed the hydraulic system, and refilled with clean hydraulic fluid. Result: Hydraulic pressure was restored to normal (30 MPa), and drilling operations resumed within 1 hour. Preventive Measure: Increased filter cleaning frequency from monthly to bi-weekly in dusty drilling environments.

Case 2: O-Type Sealing Ring (S660-7006400) Leakage in PSZ75A Working Tongs Cylinder

Problem: The PSZ75A working tongs cylinder leaked hydraulic fluid, reducing clamping force and making pipe handling impossible. Diagnosis: The O-type sealing ring S660-7006400 was worn, failing to seal the cylinder piston. Repair: Replaced the sealing ring, cleaned the cylinder bore, and refilled the hydraulic system. Result: Leakage was eliminated, and the working tongs regained full clamping force (75 kN). Preventive Measure: Scheduled monthly seal inspections to replace worn parts before leaks occur.

Case 3: 6I2504 Air Filter Failure Causing Engine Wear

Problem: A DQ70BSD unit’s engine experienced excessive wear on piston rings, requiring costly repairs. Diagnosis: The 6I2504 air filter was clogged and damaged, allowing dust to enter the engine. Repair: Replaced the 6I2504 air filter, inspected the engine for additional damage, and changed the engine oil. Result: Engine wear was minimized, and no further issues were reported. Preventive Measure: Replaced the air filter every 800 operating hours instead of 1,000 hours in high-dust environments.

FAQ (Frequently Asked Questions)

Question

Answer

Are all listed spares compatible with ZJ50, DQ70BSD/BSC, and PSZ75A/BS equipment?

Yes, every spare part listed is engineered to match the exact specifications of ZJ50 (ZJ50WSDL, ZJ50DB), DQ70BSD/BSC, and PSZ75A/BS equipment. They are direct OEM equivalents, meeting API 7K and ISO standards, and require no modifications for installation.

Can the 1R-0726 filter element be used as a replacement for other filter models in ZJ50 rigs?

The 1R-0726 filter element is specifically designed for certain ZJ50 rig models and is a direct replacement for its OEM counterpart. It is not compatible with all ZJ50 filter positions—we recommend verifying your rig’s exact filter requirements to ensure compatibility before procurement.

What is the service life of the Rexroth valve (R431009150/P64733-0/8P-1S) in hydraulic systems?

With proper maintenance (monthly inspections and cleaning), the Rexroth valve has a service life of 2,500+ operating hours. This can vary based on hydraulic fluid quality and operating conditions—contaminated fluid may reduce service life to 1,800–2,000 hours.

Procurement Guide & Technical Support

All spare parts listed—including the ZJ50 oil suction filter TF-400×180F-Y, DQ70BSD spring washer 4205030100, O-type sealing ring S660-7006400, Rexroth valve R431009150/P64733-0/8P-1S, and 1R-0726 filter element—are available for procurement. We provide full technical specifications, API 7K/ISO certification documents, and compatibility verification to ensure each part meets your exact drilling equipment requirements. Our team of oilfield equipment experts can assist with part selection, installation guidance, and troubleshooting to ensure seamless integration and optimal equipment performance. For procurement inquiries, contact our team to discuss your specific needs and obtain a detailed quote. We prioritize quality, compatibility, and reliability, delivering premium spares that keep your drilling equipment running efficiently and minimize unplanned downtime.

 

contact us 

Emeil: [email protected]   whatsapp: +86 15275658619

Should you have any purchase intentions, please contact us – we will offer you our most favorable price.

 

 


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