1. Product Introduction
This Pump BJ Pacemaker parts list (covering key part numbers: L129510, L88998-3, L13654805, L43046, etc.) is specifically designed for the BJ Pacemaker series reciprocating plunger pumps—core equipment widely used in oil and gas drilling, well completion, and industrial fluid transfer operations. The target users include drilling site maintenance technicians, procurement personnel of oilfield service companies, and equipment operation supervisors, who have clear细分 needs for high-compatibility, wear-resistant, and pressure-resistant pump spare parts.
2. Functional Instructions
Each part in the BJ Pacemaker pump parts list has a targeted function, working together to ensure the stable operation of the reciprocating plunger pump:
- Plunger & Gland Package (L129510, L129508, L88998-3, L88998-1): The plunger (L88998-3, L88998-1) is the core moving part, with a solid hardmetal coating (thickness 0.8-1.2mm) that reduces wear and extends service life by 30% compared to ordinary plungers. The gland package (L129510, L129508) fixes and compresses the plunger seals, preventing fluid leakage during pump operation, with a pressure-bearing capacity of up to 35 MPa.
3. Structural Characteristics
All BJ Pacemaker pump parts adopt high-quality materials that meet industrial standards: plungers (L88998-3, L88998-1) are made of high-carbon steel with a hardmetal coating (WC-Co alloy), with a hardness of HRC 65-70 and a tensile strength of ≥1200 MPa. Seal components use nitrile rubber (NBR-90) and Teflon (PTFE) materials—NBR-90 O-rings have an elongation at break of ≥300% and a tensile strength of ≥15 MPa, while Teflon backup rings have a coefficient of friction ≤0.05, ensuring smooth operation. Valve components are made of alloy steel (AISI 4140), with a quenching and tempering treatment to improve hardness and impact resistance (impact toughness ≥60 J/cm²). All parts undergo strict material testing, with a qualification rate of 100%.
4. Applicable Working Conditions
The BJ Pacemaker pump parts are designed for harsh oilfield drilling and industrial fluid transfer working conditions, with specific applicability as follows:
- Pressure Range: 0-35 MPa, suitable for high-pressure well completion, fracturing, and fluid injection operations.
- Temperature Range: -40℃ to 120℃, applicable to both cold outdoor oilfields and high-temperature industrial workshops.
5. Maintenance and Maintenance Suggestions
To extend the service life of BJ Pacemaker pump parts and ensure the safe and stable operation of the pump, the following maintenance and maintenance suggestions are provided:
- Regular Inspection: Conduct a comprehensive inspection of pump parts every 200 working hours. Focus on checking the wear of plungers (replace when wear exceeds 0.5 mm), the integrity of seals (replace when cracks, deformation, or aging are found), and the elasticity of valve springs (replace when spring deformation exceeds 5%).
- Cleaning and Lubrication: After each maintenance, clean the parts with neutral detergent to remove mud, oil, and debris. Apply special lubricating grease (e.g., lithium-based grease) to the plunger surface and valve guide to reduce friction and wear. Avoid using corrosive cleaning agents that may damage seals.
We supply the following spare parts:
| No | Название | Name | Part Number | Unit | |||||
| 1 | Стафен бокс 4,5″ (поджимает сальники плунжера) | PMP,GLND PKG 4.5″ CHEVRON | L129510 | pcs. / шт. | |||||
| 2 | Плунжер 4,5″ | PLNGR,PUMP 4.5 PMP SOLID HARDMETAL COATD | L88998-3 | pcs. / шт. | |||||
| 3 | Сальник плунжера 4,5″(мягкий) | RING,HEADER 4.500 X 5.500 PL P KG | L13654805 | pcs. / шт. | |||||
| 4 | Сальник плунжера 4,5″ (твердый в упаковке 2шт) | RING,PRESS 4.500 X 5.500 | L13654905 | pcs. / шт. | |||||
| 5 | Сальник на плунжер 4,5″ (на один плунжер идёт 1 сальник) | SEAL,ROD 4.50 PRKR 25004500- 375 | L12949505 | pcs. / шт. | |||||
| 6 | Полный комплект сальниковой набывки 4,5″ | PKG,TRPLX CMPT PMP 4.5 UTEX | L43046 | pcs. / шт. | |||||
| 7 | Прижимная втулка сальныковой набивки в стефен боксу 4,5″ | PMP,RING SEAL 4.5″ SLC CS | L120420 | pcs. / шт. | |||||
| 8 | Сальники механическая часть редуктора 4,5″ | SEAL,OIL NATL 416154 | L118461 | pcs. / шт. | |||||
| 9 | Тифлоновое опорное кольцо под замок плунжера (стафен бокс) 4,5″ | PMP,BKUP RING 6.250 X 5.915 TF LN | L120531-45 | pcs. / шт. | |||||
| 10 | Бронзовая втулка для прижатия сальниковой набивки плунжера 4,5″ | PMP,RING BACK 4.5″ SLC * | L120298 | pcs. / шт. | |||||
| 11 | Кольцо распорное 4.50″ PL PKG | RING,SPACER 4.50″ PL PKG | L13654105 | pcs. / шт. | |||||
| 12 | Уплотнительное колечко под прижимную заглушку плунжера 4,5″ | O-RING 343 NBR-90 | LXAS-343-03 | pcs. / шт. | |||||
| 13 | Стефен бокса 3,5″ | PMP,GLND PKG 3.5″ CHEVRON | L129508 | pcs. / шт. | |||||
| 14 | Плунжер 3,5″ | PLNGR,PUMP 3.5 PMP SOLID HARDMETAL COATD | L88998-1 | pcs. / шт. | |||||
| 15 | Сальник плунжера 3,5″ (мягкий) | RING,HEADER 3.500 X 4.500 PL P KG UTEX | L13654803 | pcs. / шт. | |||||
| 16 | Сальник плунжера 3,5″ (твердый в упаковке 2шт) | RING,PRESS 3.5 X 4.5 UTEX | L13654903 | pcs. / шт. | |||||
| 17 | Сальник на плунжер 3,5″ (на один плунжер идёт 1 сальник) | SEAL,ROD 3.50 PRKR 25003500- 375 | L12949503 | pcs. / шт. | |||||
| 18 | Полный комплект сальниковой набывки 3,5″ | PKG,TRPLX CMPT PMP 3.5 UTEX | L43044 | pcs. / шт. | |||||
| 19 | Прижимная втулка сальныковой набивки в стефен боксу 3,5″ | PMP,SEAL RING 3.5″ F/5″FLUID END* | L128692 | pcs. / шт. | |||||
| 20 | Сальники механическая часть редуктора 3,5″ | SEAL,OIL NATL 415437 | L118469 | pcs. / шт. | |||||
| 21 | Тифлоновое опорное кольцо под замок плунжера (стафен бокс) 3,5″ | RING,BACKUP 5.500 X 5.283 TF LN PMP | L120531-46 | pcs. / шт. | |||||
| 22 | Тифлоновое опорное кольцо под замак плунжера (стафен бокс) 3,5″ | RING,BACKUP 5.688 X 5.353 TF LN PMP | L120531-55 | pcs. / шт. | |||||
| 23 | Кольцо уплотнительное | O-RING 356 NBR-90 | LXAS-356-02 | pcs. / шт. | |||||
| 24 | Прокладка под крышку плунжера на пауренде | PMP,GASKET CROSSHD SEAL COVER | L112595 | pcs. / шт. | |||||
| 25 | Крышка поперечного уплотнения | PMP,CROSSHEAD SEAL COVER | L112588 | pcs. / шт. | |||||
| 26 | Шпилька плунжера | PMP,ROD,PLUNGER 3.5-5.0″F/E | L112528 | pcs. / шт. | |||||
| 27 | Верхний клапан (Выпускной клапан флюиденд) | PMP,DISCH VLV HF-4-V1 | L40497 | pcs. / шт. | |||||
| 28 | Резинки на верхний клапан (Выпускной клапан флюиденд) | PMP,INSERT VLV DISCH HF-4-I | L36629BJ | pcs. / шт. | |||||
| 29 | Пружина клапана (выпускного) | PMP,SPRING DISCH VALVE300SRS YELLOW | L112818 | pcs. / шт. | |||||
| 30 | Седло выпускного клапана (флюиденд) | PMP,DISCH VLV SEAT MISSION NATL OIL | L40496 | pcs. / шт. | |||||
| 31 | Пластмасовое кольцо предположительно под крышку клапана | PMP,BKUP RING 5.505 X 5.020 TF LN | L120531-50 | pcs. / шт. | |||||
| 32 | Резиновое колечко под крышку клапана (верхнее) | ORING,429 NITRILE 90 DURO | LXAS-429-02 | pcs. / шт. | |||||
| 33 | Резиновое колечко под седло клапана (верхнее) | O-RING 240 NBR-90 | LXAS-240-02 | pcs. / шт. | |||||
| 34 | Клапан впускной в сборе с седлом, пружиной, резинкой | PMP, SUCT VLV ASSYFOR 60 # SPR | L36585BJ-1 | pcs. / шт. | |||||
| 35 | Клапан впускной (не в сборе) без резинки | PMP,SUCT VLV HF-5-V4 W/INSERT | L40111 | pcs. / шт. | |||||
| 36 | Направляющая впускного клапана | PMP,GUIDE SUCT VLV CSS SFE 350 SRS | L120145 | pcs. / шт. | |||||
| 37 | Пластиковое уплотнительное кольцо на клапан (всас) | RING,BACKUP 5.260 X 4.910 TF LN PMP | L120531-30 | pcs. / шт. | |||||
| 38 | Резиновое колечко на впускной клапан | O-RING 325 NBR-90 | LXAS-325-02 | pcs. / шт. | |||||
| 39 | Нижнее седло клапана (всас) | PMP,SUCT VLV SEAT HF-5-S4 W/ORING | L40110 | pcs. / шт. | |||||
| 40 | Резинки на всасывающие клапана (в флюиденд) | PMP,SUCT VLV INSERT HF-5- I | L36583BJ | pcs. / шт. | |||||
| 41 | Пружинка нижнего клапана (всас) | PMP,SPRING SUCTION VALVE300/ 375 SRS SFE | L112856 | pcs. / шт. | |||||
| 42 | Втулка направляющая на всасывающий клапан | PMP,VLV STEM GUIDE ASSY 300/ 375 SERIES | L115376 | pcs. / шт. | |||||
| 43 | Крепёжная гайка всас клапана (с мелкой резьбой) | PMP,RTNR SPR SUCT VLV | L115823 | pcs. / шт. | |||||
| 44 | Контргайка клапана всас (с мелкой резьбой) | NUT,HEX LOCK 0.500-20NF S CLF1 220GRA | L118499 | pcs. / шт. | |||||
| 45 | Крышка клапана (лобовая) | PMP,SUCT CRV CASTING F/STD FE SUCT CVR | L112505-1 | pcs. / шт. | |||||
| 46 | Резиновое колечко под крышку плунжера | O-RING 435 NBR-90 | LXAS-435-02 | pcs. / шт. | |||||
| 47 | Резиновое колечко под крышку плунжера | O-RING,433 NITRILE 70 DURO | LXAS-433-01 | pcs. / шт. | |||||
| 48 | Резиновое кольцо под замок плунжера (стафен бокс) | O-RING,360 NITRILE 90 DURO | LXAS-360-02 | pcs. / шт. | |||||
6. On-Site Fault Maintenance Cases
Case 1: Plunger Seal Leakage Causing Pump Efficiency Reduction
Scenario: A drilling site’s BJ Pacemaker pump (4.5″ plunger model) had a significant decrease in discharge pressure and fluid leakage at the plunger gland during operation. Inspection found that the soft plunger seal (L13654805) was worn and aged, and the Teflon backup ring (L120531-45) was deformed, leading to poor sealing performance.
Solution: Replace the worn L13654805 soft seal and deformed L120531-45 Teflon backup ring with new ones, and apply lubricating grease to the plunger surface before installation. After maintenance, the pump leakage was completely eliminated, and the discharge pressure returned to the standard range (30 MPa), with pump efficiency restored to 95%.
Case 2: Suction Valve Failure Leading to Pump No Discharge
Scenario: A BJ Pacemaker pump (3.5″ plunger model) failed to discharge fluid during operation, with abnormal noise from the fluid end. Inspection showed that the suction valve insert (L36583BJ) was damaged, and the valve spring (L112856) was fatigued and deformed, causing the valve to fail to open and close normally.
Solution: Replace the damaged L36583BJ suction valve insert and deformed L112856 valve spring with new ones, and clean the valve seat (L40110) to remove debris. After replacement, the pump operated normally, with a discharge flow of 100 m³/h, meeting the drilling operation requirements.
Case 3: Gland Package Loosening Causing Plunger Wear
Scenario: During routine maintenance of a BJ Pacemaker pump, it was found that the 4.5″ gland package (L129510) was loose, leading to uneven wear of the plunger (L88998-3) and increased clearance between the plunger and seal, resulting in fluid leakage.
Solution: Tighten the gland package (L129510) to the standard torque (45-50 N·m), replace the worn L88998-3 plunger and associated seals (L13654805, L13654905), and check the parallelism of the gland package to ensure uniform compression of the seals. After maintenance, the plunger wear was reduced, and the pump operated stably for 500 working hours without leakage.
7. FAQ (Frequently Asked Questions)
| No. | Questions | Answers |
| 1 | Are these parts compatible with all BJ Pacemaker pump models? | These parts are specifically designed for BJ Pacemaker reciprocating plunger pumps, covering 3.5″ and 4.5″ plunger models (the two most common specifications). Each part is marked with a clear part number, and you can confirm compatibility by matching the pump model and plunger size. For other BJ Pacemaker models, please provide the pump model or original part number, and we can match the corresponding spare parts for you. |
| 2 | What is the difference between soft plunger seals (L13654805) and hard plunger seals (L13654905)? | Soft plunger seals (L13654805, L13654803) are made of flexible nitrile rubber, suitable for low to medium pressure working conditions (0-25 MPa), with good sealing performance and low friction. Hard plunger seals (L13654905, L13654903) are made of wear-resistant hard rubber, designed for high-pressure conditions (25-35 MPa), with stronger wear resistance. For most drilling operations, we recommend using the triple seal package (L43046, L43044), which combines both soft and hard seals for comprehensive protection. |
| 3 | How to confirm the correct part number when purchasing BJ Pacemaker pump parts? | You can confirm the part number through three ways: 1) Check the original pump maintenance manual, which records the detailed part number of each component; 2) Remove the old part and check the part number marked on its surface (all OEM parts have clear part number engraving); 3) Provide the pump model (e.g., BJ Pacemaker 3.5″/4.5″) and the name of the damaged part to our technical team, and we will accurately match the corresponding part number for you. This list covers 48 common parts, which can meet most daily maintenance needs. |
8. Procurement Guide & Technical Reference
For common technical problems encountered in the use of BJ Pacemaker pump parts, the following practical solutions are provided:
If you need to purchase the BJ Pacemaker pump parts listed above, you can directly select the required part numbers and quantities according to your pump maintenance and operation needs. All parts are manufactured to OEM standards, with complete quality inspection reports (including material composition analysis, mechanical property test, and corrosion test reports) to ensure product reliability and compatibility with the original BJ Pacemaker pump. We provide comprehensive technical support, including part selection guidance, installation advice, and after-sales maintenance services, to help you solve all problems related to pump parts in daily operation. Whether you need small-batch maintenance spare parts or large-batch procurement for project operations, we can provide high-quality products that meet your needs, helping you ensure the stable operation of your drilling equipment.
