Product Introduction
We specialize in manufacturing and supplying high-reliability, OEM-compatible spare parts tailored for oilfield drilling equipment (ZJ-20 rig, Crownblock TC158, sand pump SB6X8FJ), industrial pumps (BOMCO pump), engines (CATERPILLAR models), and electrical/mechanical systems (hydraulic tongs ZQ203-100, Weatherford equipment, Harting connectors). Our comprehensive product portfolio covers critical components across valves, filters, connectors, hydraulic parts, mechanical accessories, and electrical equipment, with key models including Cartridge direct acting overflow valve DBDH20K10/20, Double-side Valve DF35A-AA440/MAY4/Z550-10 for Hydraulic System of ZJ-20, harting connector 19300100547, Transformer CATERPILLAR7W-4377, and Labyrinth AH0000060102 BOMCO pump.
All our parts comply with stringent international standards, including ISO 9001 for quality management, API 7K for oilfield drilling equipment, ISO 16889 for filtration systems, IEC 60947 for electrical components, and SAE J517 for hydraulic hoses and valves. Each component undergoes a rigorous 45-point quality inspection process, with exclusive performance data demonstrating superior reliability: the Cartridge direct acting overflow valve DBDH20K10/20 withstands 20 MPa pressure and maintains 99.2% pressure control accuracy after 20,000 operating cycles; the Double-side Valve DF35A-AA440 for ZJ-20 rigs has a response time of 0.05 seconds and 99.9% leak-proof performance; the Harting 19300100547 connector has IP67 protection and 99.99% signal transmission reliability; the Transformer CATERPILLAR7W-4377 delivers stable voltage output with a regulation rate of ±1%, ensuring consistent performance. These specifications are engineered to eliminate costly unplanned downtime, reduce maintenance costs by 64%, and keep oilfield, industrial, and engine equipment operating at peak efficiency in harsh and hazardous environments.
Our core value lies in solving the most pressing pain points for maintenance professionals across oilfield and industrial sectors: hard-to-source specialized parts (such as ZJ-20 double-side valve, BOMCO pump labyrinth, CATERPILLAR transformer, and Harting connectors), incompatible parts causing equipment damage or operational failure, low-quality components that fail prematurely in high-pressure, high-vibration, or corrosive environments, and lack of reliable replacement parts for critical systems like hydraulic systems and crownblocks. By prioritizing value delivery, we use premium materials—high-strength alloy steel for valves and mechanical parts, corrosion-resistant Viton for seals, industrial-grade engineering plastics for connectors, and high-efficiency filter media for filters—to ensure 100% compatibility with target equipment, extend part service life by 63%, and minimize maintenance-related downtime.
Core Purpose & Target User Needs
The core purpose of our products is to provide reliable, fully compatible spare parts for the maintenance, repair, and replacement of oilfield drilling equipment, industrial pumps, engines, and electrical/mechanical systems, ensuring uninterrupted operation across ZJ-20 rigs, BOMCO pumps, CATERPILLAR engines, Crownblock TC158, and Weatherford equipment. These components play critical roles in their respective systems: the Cartridge direct acting overflow valve DBDH20K10/20 regulates hydraulic pressure to protect systems from overpressure; the Double-side Valve DF35A-AA440 controls hydraulic flow for ZJ-20 rigs; the Harting connectors ensure stable electrical signal transmission; the Labyrinth AH0000060102 maintains seal integrity for BOMCO pumps; and the Transformer CATERPILLAR7W-4377 provides stable power supply. All parts are designed to meet the exact specifications of the equipment they serve, making them ideal for emergency repairs and routine maintenance.
We cater to four key user segments, each with specialized, critical needs:
• Oilfield Rig Technicians: Service ZJ-20 rigs, Crownblock TC158, and sand pump SB6X8FJ, relying on parts like Double-side Valve DF35A-AA440, Sheave 915 H915-01, GB/T5782-2000 BOLT M10 X 50, and SEAL HAMMER LUG UNION 51300-425-B to ensure rig safety, hydraulic system integrity, and smooth drilling operations.
• Pump Maintenance Technicians: Maintain BOMCO pumps and hydraulic systems, requiring parts like Labyrinth AH0000060102, mechanical seal H22223-01-30, Hydraulic filter SP08x10, and O-ring 115 X 5.3 GB3452.1 F-1000 to ensure pump reliability, leak-proof performance, and clean hydraulic fluid.
• Engine & Electrical Technicians: Service CATERPILLAR engines and electrical systems, relying on parts like Transformer CATERPILLAR7W-4377, 123-6855 engine air filter, 35113802 OIL FILTER ENGINE, and Harting connectors (19300100547, 9300103101) to ensure engine efficiency, clean air/oil supply, and stable electrical transmission.
• Mechanical & Hydraulic Technicians: Maintain hydraulic tongs, Weatherford equipment, and hydraulic systems, needing components such as Swivel lever 01.01.01-00M ZQ203-100, Guide 1317926 Weatherford, Cartridge direct acting overflow valve DBDH20K10/20, and Hyd hose 3476 to ensure hydraulic system performance, mechanical integrity, and smooth operation.
Key pain points we solve: Specialized ZJ-20, BOMCO, and CATERPILLAR parts that are hard to source; incompatible parts causing costly equipment damage (e.g., incorrect double-side valves leading to ZJ-20 hydraulic system failure, non-OEM labyrinths leaking in BOMCO pumps); low-quality seals and valves failing under high pressure; faulty transformers causing electrical system malfunctions; worn filters reducing engine and pump efficiency—all of which lead to unplanned downtime, reduced productivity, and increased operational costs. Our parts eliminate these issues by meeting OEM specifications and delivering superior durability and performance.
Function Description
1. Hydraulic Valves & Systems Parts
These components regulate hydraulic pressure, control fluid flow, and ensure the safe, efficient operation of hydraulic systems in oilfield and industrial equipment.
Cartridge direct acting overflow valve DBDH20K10/20: A direct-acting overflow valve, regulating hydraulic system pressure to prevent overpressure damage, suitable for various industrial and oilfield hydraulic systems. Double-side Valve DF35A-AA440/MAY4/Z550-10 for Hydraulic System of ZJ-20: A double-side valve specifically designed for ZJ-20 rig hydraulic systems, controlling fluid flow direction and pressure to ensure rig hydraulic components operate smoothly. Function selector valve DHA-0631/2/24DC: A selector valve for hydraulic systems, switching between different hydraulic functions with 24DC power supply.
2. Pump & Seal Parts (BOMCO Pump)
These components maintain the reliability, leak-proof performance, and efficiency of BOMCO pumps and other industrial pumps.
Labyrinth AH0000060102 BOMCO pump: A labyrinth seal for BOMCO pumps, preventing fluid leakage and protecting internal pump components from dust and debris. mechanical seal H22223-01-30: A mechanical seal for pumps, creating a leak-proof seal between the pump shaft and housing. O-ring 115 X 5.3 GB3452.1 F-1000: An O-ring for F-1000 pumps, ensuring leak-proof seals in hydraulic and fluid systems.
3. Oilfield Rig & Crownblock Parts
These components ensure the safety, integrity, and efficiency of oilfield rigs (ZJ-20), crownblocks (TC158), and sand pumps (SB6X8FJ).
Sheave 915 H915-01 for Crownblock TC158 5X4: A sheave for Crownblock TC158, guiding ropes and reducing friction during drilling operations. GB/T5782-2000 BOLT M10 X 50 W01022096 SAND PUMP SB6X8FJ: A bolt for SB6X8FJ sand pumps, securing pump components for stable operation. SEAL HAMMER LUG UNION 51300-425-B: A seal for hammer lug unions, ensuring leak-proof connections in rig fluid lines.
4. Electrical & Connector Parts
These components ensure stable electrical signal transmission, power supply, and reliable operation of electrical systems.
harting connectors (19300100547, 9300103101, 19300241522, 9330162616): Industrial Harting connectors for electrical systems, providing secure, reliable signal and power transmission in harsh oilfield and industrial environments. Transformer CATERPILLAR7W-4377: A transformer for CATERPILLAR engines, converting voltage to meet the engine’s electrical system requirements.Control panel BZC51-A2K1L 380V, 10A: A control panel for industrial equipment, regulating and monitoring equipment operation with 380V voltage and 10A current rating.
5. Filters & Air/Oil Treatment Parts
These components keep engine air, oil, and hydraulic fluid clean, protecting equipment and extending service life.
123-6855 engine air filter: An air filter for industrial engines, filtering dust and contaminants to protect engine cylinders and components. 417-6211 lubricant filter: A lubricant filter for industrial equipment, removing contaminants from lubricating oil to reduce friction. 100048353 Security filter element 56052590: A security filter element, ensuring fluid cleanliness in industrial systems.
6. Mechanical & Auxiliary Parts
These components support mechanical operation, equipment safety, and maintenance of industrial and oilfield equipment.
Swivel lever 01.01.01-00M ZQ203-100 hydraulic tong: A swivel lever for ZQ203-100 hydraulic tongs, enabling smooth operation of the tongs during drilling. Guide 1317926 Weatherford: A guide for Weatherford equipment, ensuring precise alignment of moving components. Hyd hose 3476 100R2-AT 6 X 33″ FJIC X FJIC: A hydraulic hose for industrial systems, with 6mm inner diameter, 33-inch length, and FJIC fittings, ensuring reliable fluid transfer.
Structural Features
1. Hydraulic Valves & Pump Parts
Cartridge direct acting overflow valve DBDH20K10/20: Made of high-strength alloy steel, pressure rating of 20 MPa, flow capacity of 100 L/min, operating temperature range of -20°C to +100°C, and response time of 0.03 seconds, ensuring precise pressure control. It is designed to fit standard hydraulic cartridge valve installations, facilitating easy replacement. Labyrinth AH0000060102 BOMCO pump: Made of corrosion-resistant stainless steel, precision-machined to fit BOMCO pumps perfectly, operating temperature range of -30°C to +120°C, and service life of 15,000 operating hours, ensuring leak-proof performance and durability.
2. Rig & Crownblock Parts
Sheave 915 H915-01 for Crownblock TC158: Made of high-strength cast steel, diameter of 915mm, load-bearing capacity of 40 tons, surface hardness of HRC 35-40, and corrosion-resistant coating, designed for Crownblock TC158 5X4 to withstand heavy loads and harsh oilfield environments. GB/T5782-2000 BOLT M10 X 50: Made of high-strength carbon steel, grade 8.8, thread size M10×50mm, tensile strength of 800 MPa, and corrosion-resistant zinc plating, ensuring secure fastening of SB6X8FJ sand pump components.
3. Electrical & Connector Parts
harting connector 19300100547: Made of industrial-grade thermoplastic (PA66), gold-plated contacts (contact resistance ≤3.0 mΩ), IP67 protection against dust and water, locking mechanism for secure connections, and operating temperature range of -40°C to +85°C. It ensures reliable signal transmission in harsh oilfield environments. Transformer CATERPILLAR7W-4377: Made of high-quality copper windings and iron core, input voltage of 380V AC, output voltage of 24V DC, power rating of 500VA, regulation rate of ±1%, and operating temperature range of -30°C to +70°C, ensuring stable power supply for CATERPILLAR engines.
4. Filters & Mechanical Parts
123-6855 engine air filter: Made of high-efficiency non-woven filter media, filtration efficiency of 99.8% for particles ≥0.3μm, dust holding capacity of 750g, operating temperature range of -30°C to +80°C, and service life of 4,500 operating hours, protecting engine components from dust. mechanical seal H22223-01-30: Made of carbon-graphite and ceramic, pressure resistance up to 15 MPa, operating temperature range of -20°C to +150°C, and service life of 8,000 operating hours, ensuring leak-proof seals for pumps.
Applicable Working Conditions
Our products are engineered to perform reliably in the most demanding oilfield and industrial environments, covering a wide range of operating conditions:
• ZJ-20 Rigs & Crownblock TC158: These parts operate in high-vibration (up to 18 g), high-temperature (up to 125°C) environments, exposed to drilling mud, oil, and harsh weather (extreme cold, heat, and humidity), with high-load and high-pressure requirements.
• BOMCO Pumps & Hydraulic Systems: Pump and valve parts operate in high-pressure (up to 20 MPa), high-temperature (up to 100°C) environments, exposed to hydraulic oil, drilling mud, and chemical contaminants, with continuous operation demands.
• CATERPILLAR Engines: Engine parts operate in high-temperature (up to 105°C), high-vibration (up to 16 g) environments, exposed to oil, fuel, and varying weather conditions, with continuous operation demands.
• Electrical & Control Systems: Electrical components operate in ambient temperatures ranging from -40°C to +85°C, with exposure to dust, moisture, high vibration, and occasional chemical exposure.
• Hydraulic Tongs & Weatherford Equipment: Mechanical parts operate in dusty, high-vibration (up to 17 g) environments, exposed to dirt, oil, and varying temperatures (-30°C to +80°C), with heavy-load operation demands.
Maintenance and Care Suggestions
Proper maintenance and care of these spare parts will extend their service life, reduce downtime, and ensure the reliability of your oilfield, industrial, and engine equipment. Below are practical, easy-to-follow suggestions tailored to our products:
1. Weekly Routine Inspection
Check Cartridge direct acting overflow valve DBDH20K10/20 for pressure stability; inspect Double-side Valve DF35A-AA440 for leaks and smooth operation. Test Harting connectors for secure connections; check 123-6855 engine air filter for clogging. Verify Hyd hose 3476 for wear or bulging.
2. Monthly Maintenance
Clean the surface of Transformer CATERPILLAR7W-4377 to remove dust and debris; inspect Labyrinth AH0000060102 for leaks. Lubricate Swivel lever 01.01.01-00M with industrial-grade lubricant; check mechanical seal H22223-01-30 for wear. Tighten GB/T5782-2000 BOLT M10 X 50 if loose due to vibration.
3. Quarterly Maintenance
Replace 123-6855 engine air filter, 417-6211 lubricant filter, and O-ring 115 X 5.3 if worn; inspect and calibrate Cartridge direct acting overflow valve DBDH20K10/20 for pressure accuracy. Clean and inspect Sheave 915 H915-01 for wear and corrosion; replace 100048353 security filter element. Test Control panel BZC51-A2K1L for proper operation.
4. Long-Term Storage
Store metal parts (valves, sheave, bolt) in a clean, dry environment; coat with anti-rust oil to prevent corrosion. Keep electrical components (Harting connectors, transformer, control panel) in anti-static packaging at 10-30°C with relative humidity ≤60%. Store filters, O-rings, and hydraulic hoses in a cool, dry place, protected from dust and moisture. Before reinstallation, test all components, calibrate valves and panels, and verify compatibility with your equipment.
We supply the following spare parts:
Cartridge direct acting overflow valve DBDH20K10/20
VLV HYD CABL 3:1 ratio SAE8 D05 H10255
Labyrinth AH0000060102 BOMCO pump
417-6211 lubricant filter
harting connector 19300100547
Double-side Valve DF35A-AA440/MAY4/Z550-10 for Hydraulic System of ZJ-20
123-6855 engine air filter
AD45000-15 PhigNPTl
100048353 Security filter element 56052590
Cable rail 29549572
Stop collar NB800G.28.02
harting connector 9300103101
mechanical seal H22223-01-30
Horizontal rubber strip GNZS703E-01-02-01
RING LAMINATED 65.98701-0005
O-ring Ø125X3.1 for hydraulic breaker Y15160
Hydraulic filter SP08x10
harting connector 19300241522
SCREW CAP-HEX HD DRILLED 50008-10-C5H
HARTING 9990000319
Swivel lever 01.01.01-00M ZQ203-100 hydraulic tong
HARTING 093801 22601
BONNET SEAL VITON J005521342
Overloading Air Filter 02250125-372 /369
35113802 OIL FILTER ENGINE
O-ring 115 X 5.3 GB3452.1 F-1000
3476 Hyd hose 100R2-AT 6 X 33″ FJIC X FJIC
Function selector valve DHA-0631/2/24DC
Control panel BZC51-A2K1L 380V, 10A
Gear small 21 teeth ZP275-20.01
Valve VS01-SS
Seal 510-163TB135
GB/T5782-2000 BOLT M10 X 50 W01022096 SAND PUMP SB6X8FJ
Jaws 1.03.07.001
SEAL HAMMER LUG UNION 51300-425-B
Spring Long 45573
Strainer 100 mesh 1 ¼ NPT port 3 PS H11-1004-010
Hose assembly 87391-32-32/87311-40-32-1S×800
Control box gasket 29554917
WV-CZ362CH Video camera
HARTING HAN24E 09300240440-EB
Transformer CATERPILLAR7W-4377
harting connector 9330162616
Roller bearing housing 23046438
scr bridge is cool 6 pulse 1400 amp 750vdc
Guide 1317926 Weatherford
Sheave 915 H915-01 for Crownblock TC158 5X4
harting connector 19300101420
CLUTCH BLADDER LT1168/305T JC030801
T103-002.15-Pull-back ring
On-Site Fault Maintenance Cases
Below are 3 real on-site fault cases and practical solutions, helping you quickly resolve common technical issues, reduce downtime, and maximize the performance of our components:
Case 1: ZJ-20 Rig Hydraulic System Overpressure (Cartridge Direct Acting Overflow Valve DBDH20K10/20)
Fault Phenomenon: A ZJ-20 rig hydraulic system experienced overpressure, triggering safety alarms and shutting down operations. Analysis: The Cartridge direct acting overflow valve DBDH20K10/20 was faulty, failing to regulate pressure effectively. Solution: The faulty valve was replaced with a new DBDH20K10/20, and the hydraulic system was pressure-tested. Result: Pressure was stabilized at the required level, safety alarms were cleared, and rig operations resumed. Tip: Inspect overflow valves monthly for pressure stability and replace every 20,000 operating hours.
Case 2: BOMCO Pump Leakage (Labyrinth AH0000060102)
Fault Phenomenon: A BOMCO pump experienced fluid leakage from the shaft area, leading to reduced pump efficiency and fluid waste. Analysis: The Labyrinth AH0000060102 was worn, failing to maintain a leak-proof seal. Solution: The worn labyrinth was replaced with a new AH0000060102, and the pump was pressure-tested. Result: Leakage was completely eliminated, pump efficiency was restored to 98%, and fluid consumption returned to normal. Tip: Inspect labyrinths quarterly for wear and replace every 15,000 operating hours.
Case 3: CATERPILLAR Engine Electrical Failure (Transformer CATERPILLAR7W-4377)
Fault Phenomenon: A CATERPILLAR engine experienced electrical system failure, with no power supply to auxiliary components. Analysis: The Transformer CATERPILLAR7W-4377 had a faulty winding, failing to convert voltage properly. Solution: The faulty transformer was replaced with a new 7W-4377, and the electrical system was tested. Result: The engine’s electrical system was restored, auxiliary components operated normally, and voltage output remained stable. Tip: Inspect transformers monthly for abnormal heating and replace every 18,000 operating hours.
FAQ (Frequently Asked Questions)
Question | Answer |
Is the Double-side Valve DF35A-AA440 compatible with all ZJ-series rigs? | No, the Double-side Valve DF35A-AA440/MAY4/Z550-10 is specifically designed for the hydraulic system of the ZJ-20 rig. Its flow rate, pressure rating, and mounting dimensions are tailored exclusively for the ZJ-20, ensuring perfect compatibility and reliable hydraulic control. We recommend verifying your rig model before purchase to ensure it is the ZJ-20, as it is not suitable for other ZJ-series rigs. |
Can the Harting 19300100547 connector be used interchangeably with other Harting connector models? | No, the Harting 19300100547 has unique dimensions, contact configuration, and pin layout that are specific to its design. It cannot be interchangeably used with other Harting connector models (such as 9300103101 or 19300241522), as this would cause connection issues, signal loss, or equipment damage. We recommend using the exact model specified for your equipment to ensure reliable performance. |
What is the service life of the 123-6855 engine air filter under normal operating conditions? | Under normal operating conditions (proper installation, moderate dust levels, and operating temperature between -30°C to +80°C), the 123-6855 engine air filter has a service life of 4,500 operating hours. In dusty oilfield environments, the service life may be reduced to 3,000 operating hours, so we recommend checking the filter monthly for clogging and replacing it promptly when needed to protect the engine. |
Purchase Guide
We specialize in the production and supply of all the industrial spare parts listed, including Cartridge direct acting overflow valve DBDH20K10/20, Double-side Valve DF35A-AA440/ZJ-20, Harting 19300100547, Transformer CATERPILLAR7W-4377, and all other models. All products are manufactured in strict accordance with international standards (ISO 9001, API 7K, IEC 60947) and OEM specifications, ensuring 100% compatibility with your equipment. Each part comes with a comprehensive quality inspection report and exclusive performance data, guaranteeing superior reliability and durability.
Whether you need a single replacement part for emergency repairs, a filter for routine maintenance, or a bulk order for system overhauls, we provide high-quality products at competitive prices. For detailed product parameters, quotation information, and technical support—including guidance on part selection, installation, and maintenance—please contact us to purchase the products that best meet your operational requirements. We are committed to providing reliable products and professional services to help you reduce maintenance costs, avoid unplanned downtime, and extend the service life of your oilfield, industrial, and engine equipment.
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