Product Introduction
This curated assortment covers all high-wear and mission-critical components for SJPetro 3.5″ and 4.5″ pump and packer systems, including packer kits, valve springs, complete valve assemblies, seal rings, plungers, packing chambers, gland nuts and sealing bases. All parts comply with API 11AX plunger pump standards, ISO 9001 quality benchmarks and SJPetro OEM performance requirements, with full material traceability and hydrostatic pressure testing. The lineup includes high-durability elastomer seals, heat-treated alloy steel springs, precision-ground plungers and heavy-duty metal housings, fully mapped to OEM part numbers for simplified inventory and emergency field repairs.
Functional Performance Specifications
These SJPetro spare parts deliver consistent, field-proven performance: 3.5″ and 4.5″ packer kits provide a zero-leak pressure barrier with a maximum allowable leak rate of ≤0.05 BPD under full operating pressure; heat-treated valve springs maintain stable tension across 12,000+ actuation cycles to ensure positive valve closure; multi-component valve seals achieve 99.8% sealing efficiency to eliminate fluid bypass; precision-machined plungers reduce friction wear by 40% compared to standard components; and heavy-duty packing chambers withstand pressure surges up to 12,000 PSI without structural deformation.
Structural & Material Features
- OEM-Certified Dimensional Accuracy: All metal components are machined to ±0.0005 inch tolerance for perfect alignment, eliminating premature wear and fitment delays
- High-Performance Material Selection: 90-durometer nitrile rubber for seals, heat-treated alloy steel (HRC 45-50) for springs, hardened stainless steel for plungers, and forged carbon steel for housings to resist corrosion, abrasion and thermal degradation
- Modular Repair Design: Pre-assembled valve and seal modules cut field repair time by 50%, minimizing non-productive time on drilling rigs
- Redundant Sealing System: Multi-layer seal and O-ring combinations create backup barriers to prevent catastrophic pressure loss
- Size-Specific Components: Dedicated parts for 3.5″ and 4.5″ systems ensure no cross-fit errors and consistent performance for each equipment size
Applicable Operating Conditions
These spare parts are built for harsh oilfield operating environments, optimized for SJPetro 3.5″ and 4.5″ plunger pumps and packers used in well completion, fluid injection and drilling operations. They perform reliably in ambient temperatures ranging from -10°F to 320°F, handle corrosive drilling fluids, brine and mild H₂S environments, and operate under continuous high-pressure cycles. Components are rated for both stationary pump skids and mobile drilling rigs, suitable for remote onshore oilfield locations.
Maintenance & Service Recommendations
- Inspect valve seals, packer kits and O-rings every 500 operating hours for extrusion, cracking or wear to prevent pressure leakage
- Check valve spring tension and plunger surface condition quarterly; replace springs at the first sign of fatigue and plungers with visible scoring
- Lubricate plunger and seal surfaces with OEM-recommended compatible grease during installation to extend seal life
- Tighten gland nuts and housing fasteners to OEM torque specifications after every 200 operating hours to prevent loosening from vibration
- Stock high-wear parts (seals, packer kits, valve springs, plungers) at recommended minimum levels to avoid unplanned downtime
- We supply the following spare parts:
| № | part number | part name |
| 1 | G04050500012AA | Пакет пакера 3,5 |
| 2 | G04050500017AA | Пакет пакера 4,5 |
| 3 | B600-02070034 | Комбинированный уплотнитель крышки |
| 4 | 4Р100198 | Пружина клапана нижняя |
| 5 | 4Р100281 | Пружина клапана нижняя |
| 6 | B600-02000044 | Пружина клапана верхняя |
| 7 | B600-02000073 | Основание пружины клапана |
| 8 | B600-02060004A | Клапан в сборе |
| 9 | 2Р110356 | Уплотнение клапана |
| 10 | B600-02000083 | Седло + уплотнение O-Ring |
| 11 | B600-02040013 | Нажимная крышка нагнетания |
| 12 | B600-02070023 | Нажимная крышка всасывания |
| 13 | P220024059 | Сальник 2″ |
| 14 | B600-02000112 | Нажимная гайка |
| 15 | B600-02010014 | Уплотнительное кольцо #244 |
| 16 | B600-02080002Y | Основание уплотнения в сборе 3,5″ |
| 17 | 53-6534 | Сальниковое уплотнение |
| 18 | B600-02080024A | Седло с уплотнительным кольцом |
| 19 | B600-02080054 | Кольцо уплотнительное |
| 20 | B600-42010002Y | Основание уплотнения в сборе 4,5″ |
| 21 | P10S155 | Сальниковое уплотнение |
| 22 | B600-42010014 | Седло с уплотнительным кольцом |
| 23 | B600-42010034 | Кольцо уплотнительное |
| 24 | B600-52020012 | Камера пакинга 4,5″ |
| 25 | B600-02050022A | Камера пакера 3,5″ |
| 26 | P2300121AA | Плунжер 3,5 |
| 27 | P2300155AAY | Плунжер 4,5 |
| 28 | B600-02000062Y | Плунжер 3,5 |
| 29 | B600-52000022Y | Плунжер 4,5 |
Field Failure Repair Case Studies
Case 1: 3.5″ Packer Seal Pressure Leakage
An SJPetro 3.5″ packer system experienced severe pressure loss due to a degraded packer kit (G04050500012AA). The worn seal had lost elasticity and failed under operating pressure. Installing an OEM packer kit restored full pressure retention, eliminated fluid leakage and allowed the well completion operation to resume on schedule.
Case 2: Valve Spring Fatigue Causing Valve Malfunction
A 4.5″ SJPetro pump suffered inconsistent fluid delivery due to a fatigued upper valve spring (B600-02000044) that lost tension after prolonged cycling. Replacing the spring with an OEM heat-treated unit restored positive valve actuation, fixed flow irregularities and prevented further pump damage.
Case 3: 4.5″ Plunger Scoring & Seal Wear
A plunger pump experienced excessive fluid bypass and seal failure due to a scored 4.5″ plunger (B600-52000022Y). The damaged plunger accelerated seal wear and reduced pump efficiency. Swapping in a precision-ground OEM plunger and new seal assembly restored pump efficiency to full rated capacity and extended seal service life.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts compatible with both 3.5″ and 4.5″ SJPetro pump/packer systems? | Yes, this catalog includes dedicated OEM parts for both 3.5-inch and 4.5-inch SJPetro equipment, with size-specific part numbers to ensure perfect fitment and performance. |
| Do these spare parts meet API oilfield equipment standards? | Absolutely, all components are manufactured to meet API 11AX standards for plunger pumps and align with SJPetro OEM quality and pressure rating requirements. |
| Can these parts fix common leaks, valve issues and plunger wear? | Yes, these OEM replacement parts directly resolve the most common failures: packer/valve seal leaks, fatigued valve springs, worn plungers and damaged sealing rings. |
Procurement Guidance & Closing Value Statement
This SJPetro 3.5″ & 4.5″ spare parts list serves as both a formal procurement benchmark and a technical troubleshooting reference, designed to minimize costly rig downtime, reduce long-term maintenance expenses and uphold the pressure integrity and operational reliability of your oilfield equipment. Each part is a verified OEM-grade component that eliminates the risks of low-quality aftermarket parts, ensures compliance with industry and SJPetro standards, and delivers consistent durability in harsh drilling conditions.
Whether you need to replace worn packer kits, faulty valve assemblies, degraded seals, damaged plungers or loose fasteners to restore your SJPetro equipment, or stock critical spares for routine maintenance and emergency repairs, this catalog provides the exact parts, quantities and OEM specifications your operation demands. Secure your supply of authentic SJPetro spare parts today to protect your equipment investment, maintain uninterrupted drilling and well service workflows, and keep your operations running efficiently and r
