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High-Pressure Pup Joint — Pup Joint for Cementing & Fracturing Equipment
API 16C / 6A High-Pressure Pup Joint for Cementing & Fracturing
Product Description
The high-pressure pup joint is an essential element for cementing and fracturing equipment to deliver high-pressure fluid. It is widely used in high-pressure discharge lines, input lines, temporary flow lines, well testing lines, and other high-pressure transmission lines — including acid gas operating environments (excluding CO₂ and H₂S sour gas service).
Our pup joints are forged from high-quality alloy structural steel. The end of the straight pipe and the union are forged into one integral piece, eliminating disassembly, providing excellent sealing performance, and offering light weight, easy use, and quick installation.
Standard pipeline specifications are 2" to 3", with common lengths ranging from 0.5 m to 6 m. Rated working pressure is 42 MPa to 105 MPa, with a working temperature range of -29°C to 121°C.
Design Features
- API 16C Compliant: Performance and technical parameters are in line with API 16C specification. Product specification level PSL3, performance level PR1, interchangeable with SPM and similar products.
- Integrally Forged Union: The pup joint end is forged with the union — no threaded connection — making it safer, more reliable, and eliminating disassembly issues.
- Multiple Sealing Design: High-precision machining ensures the sealing performance of the whole line.
- High-Strength Alloy Steel: Made from high-strength alloy steel with a special toughening process, using Acme threaded connection for easy disassembly, quick connection, and reliable sealing.
- Easy & Fast Loading: Quick assembly and disassembly for field operations.
- API 6A Compliant: Various technical parameters and performance meet the specifications of API Spec 6A, interchangeable with similar foreign products.
Technical Data & Structure
Technical Parameters
- Working Pressure: 42 MPa ~ 140 MPa
- Nominal Diameter: 2" to 4"
- Material Grade: AA ~ EE
- Temperature Rating: -29°C ~ 121°C (PU Grade)
- Connection Type: FIG602, FIG1002, FIG1502, FIG2002 type union
- Length Range: 0.5 m ~ 6 m (1 ft ~ 6 ft)
Product Structure
- Union Nut
- Three-Petal Retaining Ring
- Shaft-Use Elastic Retaining Ring
- Straight Pipe
- Union Seal Ring
Technical Specifications — Length & Weight
Use Conditions: Standard. (F = Female, M = Male)
| Specification | Working Pressure | Length L (mm) | Connection Type | Weight 2" (kg) | Weight 3" (kg) |
|---|---|---|---|---|---|
| 2" & 3" | 42 MPa | 500 | FIG602 (F×M / F×F / M×M) | 8.8 | 18.7 |
| 1000 | 15 | 32.4 | |||
| 1500 | 21.4 | 46.1 | |||
| 2000 | 27.8 | 59.8 | |||
| 2500 | 34.2 | 73.5 | |||
| 3000 | 40.6 | 87.2 | |||
| 4000 | 53.4 | 114.6 | |||
| 5000 | 66.2 | 142 | |||
| 6000 | 79 | 170 | |||
| 2" & 3" | 70 MPa | 1000 | FIG1002 (F×M / F×F / M×M) | 15 | 32.4 |
| 1500 | 21.4 | 46.1 | |||
| 2000 | 27.8 | 59.8 | |||
| 2500 | 34.2 | 73.5 | |||
| 3000 | 40.6 | 87.2 | |||
| 4000 | 53.4 | 114.6 | |||
| 5000 | 66.2 | 142 | |||
| 6000 | 79 | 170 | |||
| 2" & 3" | 105 MPa | 500 | FIG1502 (F×M / F×F / M×M) | 8.8 | 18.7 |
| 1000 | 15 | 46.1 | |||
| 1500 | 21.4 | 59.8 | |||
| 2000 | 27.8 | 73.5 | |||
| 2500 | 34.2 | 87.2 | |||
| 3000 | 40.6 | 114.6 | |||
| 4000 | 53.4 | 142 | |||
| 5000 | 66.2 | 170 | |||
| 6000 | 79 | 170 |
Custom lengths and connection types available upon request. FIG2002 type union also available.
Available Connection Types
| Type | Description |
|---|---|
| Integral Pup Joint | Union integrally forged with pipe end, no threaded connection |
| Compression Thread Sealing | Threaded connection with compression seal |
| Non-Pressure Thread Sealing | Threaded connection without pressure seal |
| Welded Short Section | Welded connection for permanent installation |
Applications
- Cementing Equipment: High-pressure discharge and input lines for cementing operations.
- Fracturing Equipment: High-pressure fluid delivery lines for fracturing operations.
- Temporary Flow Lines: High-pressure transmission lines for temporary well testing and flowback.
- Well Testing Lines: High-pressure connection lines for well testing operations.
- Acid Gas Operating Environments: Suitable for acid gas service (excluding CO₂ and H₂S sour gas).
Quality Assurance & Packaging
| Standard | API 16C / API 6A |
| Specification Level | PSL3 |
| Performance Level | PR1 |
| Material | High-Strength Alloy Structural Steel |
| Connection | Acme Threaded Connection / Integral Union |
| Test Report | Material Test Reports & Pressure Test Reports Provided |
| Packaging Details | Wooden Case / Pallet (Suitable for global shipping) |
| Shipping Port | Shanghai / Tianjin / Qingdao (Negotiable) |
| Delivery Time | 15-30 Days (Depends on quantity) |
| Payment Terms | T/T, Western Union, L/C |
Why Choose Petrolik?
- API 16C / 6A Compliant: PSL3 specification level, PR1 performance level, fully interchangeable with SPM and similar foreign products.
- Integrally Forged Union: Union forged directly with the pipe end — no threaded connection — ensuring safer and more reliable high-pressure performance.
- 100% Documented Quality: We provide full material test reports and pressure test reports with every shipment. Video inspection is available.
- Reliable Sourcing from Xi'an: Leveraging the mature energy equipment manufacturing ecosystem in Xi'an, we ensure competitive pricing without compromising on quality.
- Fast Technical & Quotation Response: Our engineering team responds to technical inquiries and provides detailed quotations within 24 business hours.
Frequently Asked Questions (FAQ)
Q1: What is a high-pressure pup joint used for?
A: It is an essential element for cementing and fracturing equipment to deliver high-pressure fluid. It is widely used in high-pressure discharge lines, input lines, temporary flow lines, well testing lines, and other high-pressure transmission lines.
Q2: What standards do your pup joints comply with?
A: Our pup joints are in line with API 16C specification (PSL3, PR1) and API 6A specification. They are interchangeable with SPM and similar foreign products.
Q3: What sizes and pressure ratings are available?
A: Standard sizes are 2" and 3" (also available 2" to 4"), with working pressures from 42 MPa to 105 MPa (up to 140 MPa available) and a temperature rating of -29°C to 121°C (PU Grade).
Q4: What connection types do you offer?
A: We offer FIG602, FIG1002, FIG1502, and FIG2002 type unions. In addition to integral pup joints, we also provide compression thread sealing, non-pressure thread sealing, and welded short section types.
Q5: Can you supply pup joints for acid gas service?
A: Yes. Our pup joints are suitable for acid gas operating environments (excluding CO₂ and H₂S sour gas service). Please contact us with your specific requirements.
Q6: What is your MOQ and Lead Time?
A: Our MOQ is flexible. Standard lead time is 15-30 days depending on the quantity and customization requirements. Please contact us for a precise quote.
Need a Quote for High-Pressure Pup Joints?
Send us your required pressure rating, length, and connection type. Our team will respond within 24 hours.
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