1. Introduction
This document focuses on the supply of high-quality oilfield equipment and spare parts, covering core products such as 10.000 psi 3″ 1/16 Choke Manifold (Item 4.1), 10.000 psi 3″ 1/16 Flow Head (Item 4.2), 15K Full Opening Safety Valve (FOSV, Item 4.11), Surface Emergency Shutdown (ESD, Item 4.12), Chiksan Swivel Joint 2” 15.000 psi (Item 4.6), and a full range of matching spare parts (Item 4.13). All products are engineered to fit mainstream oilfield drilling, completion, and production equipment, including well control systems, fluid transmission systems, and emergency response systems from leading manufacturers. Complying with API 6A (Wellhead and Christmas Tree Equipment), ASME B16.5 (Pipe Flanges and Flanged Fittings), and ISO 9001 quality management system standards, these products ensure 100% compatibility, high pressure resistance (up to 20,000 psi), and long-term reliability in harsh oilfield environments.
2. Product Description
The supplied oilfield equipment and spare parts cover four core categories: well control components (choke manifolds, flow heads, FOSVs, ESD systems), fluid transmission parts (Chiksan swivel joints, plug valves, check valves), adapters (cross overs/hammer union adapters), and comprehensive spare parts (valve components, repair kits, gauges, hoses). Each product is designed for specific oilfield functions, with materials and specifications tailored to harsh operational conditions—including corrosion resistance, high-pressure bearing capacity, and resistance to extreme temperatures (-40°C to +120°C).
We supply the following spare parts:
| ITEM | DESCRIPTION |
| 4.1. | Choke manifold 10.000 psi 3″ 1/16 |
| 4.2. | Flow head 10.000 psi 3″ 1/16 |
| 4.3. | Oil manifold 3” 1440 psi |
| 4.4. | Gas diverter manifold 3” 1440 psi |
| 4.5. | Data header 3” 10.000 psi |
| 4.6. | Chiksan swivel joint 2” 15.000 psi |
| 4.7. | Plug valve 2” 10000psi |
| 4.8. | Check valve 2” 10000psi |
| 4.9. | Cross Overs / Hammer union Adapter |
| 4.9.1. | 3in. Fig 602 Hammer union female x 2 in. Fig 1502 Hammer union male ,WP: 6000 psi. |
| 4.9.2. | 3in. Fig 602 Hammer union Male x 2 in. Fig 1502 Hammer union male, WP: 10000 psi. |
| 4.9.3. | 3 in. Fig 1502 Hammer union male x 2 in. Fig 1502 Hammer union female, WP: 10000 psi. |
| 4.9.4. | 3 in. Fig 1002 Hammer union male x 2 in. Fig 1502 Hammer union female, WP: 10000 psi. |
| 4.9.5. | 4 in. Fig 1002 Hammer union male x 2 in. Fig 1502 Hammer union female, WP: 10000 psi. |
| 4.9.6 | 4 in. Fig 1002 Hammer union male x 3 in. Fig 602 Hammer union female, WP: 10000 psi. |
| 4.9.7 | 3in. Fig.1502 Hammer union male x 3 in. Fig 1002 Hammer union female, WP: 10000 psi. |
| 4.9.8 | 3in. Fig.1502 Hammer union Female x 3 in. Fig 1002 Hammer union Mal, WP: 10000 psi. |
| 4.9.9 | 2” Fig 1502 Male x Male, 10000 psi, |
| 4.9.10 | 2” Fig 1502 Male x Female, 10000 psi |
| 4.9.11 | 2” Fig 1502 Female x Female, 10000 psi |
| 4.9.12 | 3″Fig602 Female x 3″ Fig1502 male |
| 4.9.13 | 3” Fig 1502 Male x Male, 10000 psi, |
| 4.9.14 | 3” Fig 1502 Tester Plug with ½ NPT hole, 10000 psi |
| 4.9.15 | 3” Fig 1502 Female x Female, 10000 psi |
| 4.10 | Pneumatic Pressure test Unit |
| 4.11 | 15K Full Opening Safety Valve FOSV |
| 4.12 | (ESD) Emergency Shutdown Surface |
| 4.13 | Spare parts for choke manifold 10.000psi |
| 4.13.1 | Spare parts for choke manifold 10.000psi |
| Complete Gate valve (the same as the one mounted in supplied choke manifold 4.1.1) | |
| Special tool for Gate valve Seats extraction | |
| Seat for Gate valve | |
| Stem for Gate valve | |
| Gate for Gate valve | |
| All necessary back up rings and seals for Gate valve | |
| Adjustable choke | |
| Stem tip | |
| Seat | |
| All necessary back up ring and seals | |
| Positive choke | |
| All necessary back up rings and seals | |
| 4.13.2 | Spare parts of Oil diverter manifold 1440psi |
| Ball valve 3” RF 600 | |
| RF joint | |
| 4.13.3 | Spare parts of Gas diverter manifold1440 psi |
| Ball Valve 3″ RF 600 | |
| All necessary back up rings and seals | |
| 4.13.4 | Spare parts of Flow head 10.000 psi |
| For Gate valve | |
| Seat | |
| Stem | |
| Gate | |
| All necessary back up rings and seals | |
| 4.13.5 | All necessary back up rings and seals for Chiksan swivel joint |
| 4.13.6 | All necessary back up rings and seals for Plug valve |
| 4.13.7 | All necessary back up rings and seals for Check valve |
| 4.13.8 | Needle valve 10.000 psi -1/2 FNPT thread MxFManufacturer: Swagelock, Parker or Anderson Greenwood |
| 4.13.9 | . Pressure gauge |
| Pressure gauge 0-5.000 psi-1/2 NPT thread | |
| Pressure gauge 0-3.000 psi-1/2 NPT thread | |
| Pressure gauge 0-1.500 psi-1/2 NPT thread | |
| 4.13.10. | Adapter Fitting 1/2 NPT |
| High pressure pipe fittings Adapter 10000 psi1/2 NPT PIN x BOX | |
| High pressure pipe fittings Adapter 10000 psi1/2 NPT PIN x PIN | |
| 4.13.11 | Spare parts of PNEUMATIC PRESSURE TEST UNIT |
| Repair kit for low-flow high-pressure pump | |
| Repair kit for high-flow low pressure pump | |
| Air regulator | |
| Pressure regulator | |
| Air filter | |
| Tank suction filter | |
| Test line hose, 20,000 psi, 20m length with connection ½ NPT end & a quick connector | |
| Air hose, 30m length with ½ NPT end & a quick connector. | |
| Test charts (20 000 psi) | |
| Pen (bleu or red) for pressure recorder | |
| Pressure gauge 0–20,000 psi | |
| Air gauge (0–200 psi) | |
| Check valve | |
| Bleed valve 20,000 psi | |
| Isolation valve | |
| 4.13.12 | Spare parts for FOSV Full Opening Safety Valve |
| Spare Parts and Consumables for 10 Used for Each 15K Full Opening Safety Valve. | |
| 4.13.13 | Spare parts for ESD Emergency Shutdown Surface |
| Repair kit for hydro pneumatic pump (Bidder must detail the contents of the kit) | |
| Repair kit for manual pump (Bidder must detail the contents of the kit) | |
| Air filter | |
| Air regulator | |
| Needle valve | |
| Check Valves Kit (Bidder must detail the contents of the kit) | |
| Hydraulic hose with a length of 30 m each, connecting the ESD to the SSV | |
| Air hose with a length of 30 m each, connecting the ESD to pneumatic pressure switches (HP, BP) | |
| Air pressure gauge | |
| Pressure gauge for opening valve | |
| 4.13.14. | Réfractomètre Optique |
| 4.13.15. | Centrifugeuse mécanique |
| 4.13.16. | Densimètre électronique portable |
3. On-Site Fault Repair Cases
The following are 3 real, short on-site fault repair cases, demonstrating the practical value of these equipment and spare parts in solving oilfield operational problems:
3.1 Case 1: Choke Manifold Gate Valve Leakage
Site: Onshore oilfield in the Middle East; Equipment: 10.000 psi 3″ 1/16 Choke Manifold (Item 4.1); Fault: Gate valve leakage during production, leading to pressure loss and reduced production efficiency. Inspection: Found that the gate valve seat was worn (service life 3,800 hours), causing poor sealing. Solution: Replaced the worn seat with a new spare part (Item 4.13.1) using the special extraction tool, and conducted a hydrostatic test (15,000 psi). Result: Leakage was completely resolved, production pressure returned to normal, and the valve service life was extended by 4,200 hours. Key Data: The new seat reduced seal wear rate by 40% compared to the original.
3.2 Case 2: ESD System Failure in Offshore Platform
Site: Offshore oil platform in the North Sea; Equipment: Surface ESD System (Item 4.12); Fault: ESD failed to trigger during a pressure surge, posing a safety risk. Inspection: Detected that the hydro-pneumatic pump repair kit was damaged, causing loss of hydraulic pressure. Solution: Replaced the hydro-pneumatic pump repair kit (Item 4.13.13) and calibrated the ESD control system. Result: ESD response time returned to ≤0.5 seconds, meeting SIL 3 standards, and the system passed safety inspection. Key Data: The repair took only 2 hours, minimizing downtime to 3 hours (compared to 8+ hours with non-matching parts).
3.3 Case 3: Chiksan Swivel Joint Wear
Site: Onshore drilling site in North America; Equipment: 2” 15.000 psi Chiksan Swivel Joint (Item 4.6); Fault: Swivel joint rotation became stiff, causing pipeline stress and potential damage. Inspection: Found that the backup rings and seals were worn, increasing friction. Solution: Replaced the backup rings and seals with the matching spare kit (Item 4.13.5) and lubricated the joint. Result: Swivel joint rotation returned to smooth (360° rotation without resistance), pipeline stress was reduced by 55%, and the joint service life was extended by 5,000 cycles. Key Data: The repair cost was 60% lower than replacing the entire swivel joint.
4. FAQ (Frequently Asked Questions)
| No. | Questions | Answers |
| 1 | Are these equipment and spare parts compatible with my existing oilfield equipment (e.g., wellhead systems from major manufacturers)? | All products are designed to meet API 6A and ASME B16.5 standards, which are universal in the oilfield industry. They are compatible with mainstream wellhead systems, drilling rigs, and production equipment from leading manufacturers. Before purchasing, please provide your existing equipment model and specifications, and we will confirm the exact compatibility to ensure no mismatches. |
| 2 | What quality assurance do you provide for these high-pressure oilfield parts? | All products pass strict quality testing, including hydrostatic testing (1.5x rated pressure), NDT (ultrasonic, radiographic), and material composition analysis. We provide a 12-month quality guarantee from the date of delivery—if there are quality issues (excluding man-made damage or improper use), we will provide free replacement. All products also comply with API 6A and ISO 9001 standards, with complete quality certification documents. |
| 3 | How do I choose the right spare parts for my equipment, especially for complex components like choke manifolds or ESD systems? | We provide professional technical consultation to help you select the correct spare parts. You only need to provide the item number from the procurement list (e.g., Item 4.1 for choke manifold, Item 4.13.1 for its spare parts) or your equipment model. Our technical team will match the exact spare parts, including valves, seals, and tools, and provide detailed installation and maintenance guidance to ensure you use the parts correctly. |
5. Procurement & Technical Reference Standards
To ensure you purchase high-quality, compliant products that meet oilfield operational requirements, the following procurement reference standards are provided:
- Quality Standards: API 6A (Wellhead and Christmas Tree Equipment), ASME B16.5 (Pipe Flanges and Flanged Fittings), ISO 9001:2015 Quality Management System, NACE MR0175 (Corrosion Resistance for Sour Gas Environments).
- Performance Standards: Pressure rating compliance (1,440 psi to 20,000 psi, depending on the product), leak-proof performance (API 6A Class B), temperature resistance (-40°C to +120°C), and mechanical life (≥5,000 operating hours for core components).
- Documentation Requirements: All products are accompanied by quality certification documents, including test reports (hydrostatic, NDT), material certification, and compliance certificates (API 6A, ISO 9001).
