Core Purpose & Equipment Adaptation
Our high-pressure pipe fittings (2″1502 Pup Joint, LS-15 Swivel Joint, High Pressure Plug Valve) are precision-manufactured for oil & gas drilling, well completion, and high-pressure fluid transfer systems, fully compatible with API 6A standards (15000PSI working pressure, Fig. 1502 end connections). Targeting drilling operation teams, on-site maintenance technicians, and procurement professionals, we solve pain points like fitting leakage, premature wear, and misalignment—critical risks that cause costly downtime and safety hazards. Core purpose: Provide direct-fit, durable fittings to ensure leak-proof, reliable high-pressure fluid transfer, withstanding extreme well conditions while meeting API 6A and NACE MR0175 corrosion resistance standards for harsh downhole environments.
Product Classification & Description
1. 2″1502 Pup Joint (15000PSI)
2″1502 Pup Joints (15000PSI) are short, precision-machined pipe sections with Fig. 1502 end connections, designed for quick, leak-proof assembly in high-pressure fluid transfer systems. They eliminate misalignment issues and premature wear from ill-fitting parts, ideal for oil & gas drilling, wellhead, and BOP systems where reliable, compact connections are critical.
No. | Product Model | Material | Main Wear Reason | Usage Precaution to Avoid Damage |
1 | 2″1502 Pup Joint L-1.20Mtr Female to Male 15000PSI | A105 carbon steel (heat-treated), with corrosion-resistant alloy plating (NACE MR0175 compliant) for harsh well fluids | Uneven torque during installation causes thread deformation; long-term exposure to corrosive well fluids (H₂S/CO₂) leads to material degradation | Use a calibrated torque wrench to apply API-recommended torque (350-400 ft-lbs) during installation; inspect thread plating quarterly and apply anti-corrosion grease after use in sour well environments |
2 | 1FT 2” 1502 Pup Joint Male to Male | A105 carbon steel (heat-treated), with zinc-nickel plating for general corrosion resistance and thread galling prevention | Over-tightening damages thread roots; vibration during drilling operations causes loosening and metal-to-metal friction wear | Follow torque specifications strictly (do not exceed 420 ft-lbs); use lock washers to secure connections and reduce vibration-induced loosening in mobile drilling systems |
3 | 1FT 2” 1502 Pup Joint Female to Female | A105 carbon steel (heat-treated), with PTFE thread sealant integrated into female ports for enhanced leak resistance and corrosion protection | Improper thread cleaning before installation traps debris, leading to seal damage and leakage; repeated assembly/disassembly wears PTFE sealant | Clean threads with a wire brush and solvent before each installation; reapply PTFE sealant after 3-4 assembly cycles to maintain leak-proof performance |
4 | 2″1502 Pup Joint L-6 FT F-M 15000PSI | A105 carbon steel (heat-treated), with chromium plating on threads and body for resistance to abrasion and corrosive well fluids | Bending stress from improper alignment during installation causes pipe wall thinning; exposure to high-temperature well fluids (above 120°C) weakens material strength | Ensure alignment within 0.5° of straight before installation; avoid use in fluid temperatures exceeding 120°C; use pipe supports to reduce bending stress in long-length installations |
5 | 2″1502 Pup Joint L-8 FT F-M 15000PSI | A105 carbon steel (heat-treated), with alloy steel reinforcement at thread joints for increased load-bearing capacity and wear resistance | Vibration-induced fatigue at thread joints (common in long-length fittings); contact with sharp tools or debris during handling causes surface scratches and corrosion initiation | Install vibration dampeners near thread joints in high-vibration systems; handle with padded lifting slings and store in a padded rack to avoid surface damage |
6 | 2″1502 Pup Joint L-10 FT F-M 15000PSI | A105 carbon steel (heat-treated), with dual-layer corrosion protection (zinc plating + epoxy coating) for extreme sour well environments | Epoxy coating damage during handling exposes base metal to H₂S corrosion; uneven pressure distribution causes localized stress and material fatigue | Inspect epoxy coating for scratches before use; touch up damaged areas with epoxy touch-up paint; ensure pressure is distributed evenly across the fitting during system startup |
7 | 2″1502 Pup Joint L-12 FT F-M 15000PSI | A105 carbon steel (heat-treated), with Inconel 625 cladding on internal surfaces for resistance to severe corrosion and high-pressure erosion | Erosion from high-velocity fluid flow (above 15 ft/s) wears Inconel cladding; thermal cycling (rapid temperature changes) causes cladding delamination | Limit fluid velocity to 15 ft/s or below; avoid rapid temperature changes (max 50°C per hour) during system operation to prevent cladding delamination |
2. LS-15 2-inch Swivel Joint (15,000 psi)
LS-15 2-inch Swivel Joints (15,000 psi) feature Fig. 1502 end connections (Female x Male with Nut), enabling 360° rotation to eliminate hose/tube twisting. They solve alignment and torque damage issues, ideal for high-pressure drilling fluid transfer, wellhead connections, and BOP systems requiring flexible movement.
No. | Product Model | Material | Main Wear Reason | Usage Precaution to Avoid Damage |
1 | Swivel joint LS-15 2-inch style 50 15,000 psi working pressure End connection: 2-inch Fig. 1502 Female x 2-inch Fig. 1502 Male (w/Nut) | A105 carbon steel body, Inconel 718 swivel ball, and Viton seals (API 6A compliant) for high-pressure and high-temperature resistance | Contaminants in fluid (sand, debris) scratch swivel ball surface, causing seal leakage; lack of lubrication leads to metal-to-metal friction and galling | Install a inline filter (100-mesh) upstream to prevent debris entry; lubricate swivel ball with high-pressure grease (NLGI Grade 2) every 50 working hours |
2 | Swivel joint LS-15 2-inch style 10 15,000 psi working pressure. End connection: 2-inch Fig. 1502 Female x 2-inch Fig. 1502 Male (w/Nut) | A105 carbon steel body, stainless steel 316 swivel ball, and EPDM seals for resistance to water-based drilling fluids and general corrosion | Over-rotation (exceeding 360°) damages internal bearing races; exposure to oil-based drilling fluids degrades EPDM seals over time | Limit rotation to 360° maximum; replace EPDM seals every 3 months if used with oil-based fluids; use Viton seals as a replacement for oil-based applications |
3. High Pressure Plug Valve (Fig. 1502, 15000 PSI)
High Pressure Plug Valves (Fig. 1502, 15000 PSI) are quarter-turn valves designed for on/off control of high-pressure fluids, with Fig. 1502 end connections for seamless integration. They eliminate leakage and operational jamming—critical for well control systems, where reliable shut-off prevents catastrophic well incidents.
No. | Product Model | Material | Main Wear Reason | Usage Precaution to Avoid Damage |
1 | 2X2 High pressure Plug valve fig 1502 15000 PSI | A105 carbon steel body, hardened alloy steel plug, and PTFE seat (API 6A and NACE MR0175 compliant) for sour gas service | Debris trapped between plug and seat causes scoring and leakage; infrequent operation leads to seat hardening and valve jamming | Flush valve with clean fluid before closing; operate valve at least once per week to prevent seat hardening; inspect plug/seat for scoring every 6 months |
2 | 2X1 High pressure Plug valve fig 1502 15000 PSI | A105 carbon steel body, stainless steel 316 plug, and graphite seat for high-temperature (up to 200°C) and high-pressure service | Thermal expansion mismatch between plug and seat causes binding; over-torque during closing damages seat and plug threads | Allow valve to cool to ambient temperature before closing (if used at >150°C); use a torque wrench to apply 250-300 ft-lbs of torque—do not force closure |
On-Site Fault Maintenance Cases
Case 1: 2″1502 Pup Joint Leakage Due to Thread Plating Damage
A drilling rig experienced leakage from a 2″1502 Pup Joint (L-6 FT F-M) after 3 months of use in a sour well. Inspection revealed thread plating damage from improper handling, leading to H₂S corrosion and thread deformation. Solution: Replaced the damaged pup joint with our API 6A-compliant unit, cleaned the mating connections, applied anti-corrosion grease, and trained technicians on proper handling (padded slings, no sharp tool contact). The joint resumed leak-proof operation with no recurrence.
Case 2: LS-15 Swivel Joint Seizure from Lack of Lubrication
An oilfield operation’s LS-15 2-inch style 50 swivel joint seized during drilling fluid transfer, causing hose twisting and system shutdown. The issue stemmed from infrequent lubrication, leading to swivel ball galling. Solution: Replaced the seized swivel joint with our direct-fit unit, installed an inline filter to prevent debris entry, and established a 50-hour lubrication schedule. The joint operated smoothly, eliminating hose damage and unplanned downtime.
FAQ (Frequently Asked Questions)
FAQ | Answers |
Are these fittings compatible with my API 6A-compliant wellhead, BOP, or high-pressure fluid transfer system (15000PSI, Fig. 1502 connections)? | Yes—all fittings (2″1502 Pup Joint, LS-15 Swivel Joint, High Pressure Plug Valve) are fully API 6A compliant, designed for 15000PSI working pressure and Fig. 1502 end connections. They are direct-fit replacements for standard wellhead, BOP, and drilling fluid transfer systems, requiring no modifications. |
How do I choose the right material for my application (sour well, high-temperature, or general service)? | For sour wells (H₂S), choose fittings with NACE MR0175-compliant materials (Inconel cladding, corrosion-resistant plating); for high-temperature (>120°C), select graphite-seated plug valves and Inconel swivel balls; for general service, A105 carbon steel with zinc-nickel plating is sufficient. All material specs align with API 6A requirements. |
What maintenance schedule should I follow to maximize the service life of these high-pressure fittings? | Inspect threads, seals, and plating quarterly; lubricate swivel joints every 50 working hours; calibrate torque wrenches annually; replace seals every 3-6 months (depending on fluid type); flush plug valves weekly to prevent debris buildup. Follow API 6A maintenance guidelines for sour well and high-pressure applications. |
Procurement Guidance
In oil & gas drilling and well operations, high-pressure fitting failure—from leakage, wear, or misalignment—causes costly downtime, safety hazards, and non-compliance with API 6A standards. Our comprehensive portfolio of 2″1502 Pup Joints, LS-15 Swivel Joints, and High Pressure Plug Valves (15000PSI) is engineered to eliminate these risks, delivering direct-fit, durable performance that meets API 6A and NACE MR0175 standards. Every fitting is precision-machined from premium materials, tested to withstand extreme pressure, corrosion, and vibration, and designed with user-centric features to simplify maintenance and prevent damage. Whether you need short/long-length pup joints, flexible swivel joints, or reliable plug valves, we offer a one-stop supply solution tailored to your high-pressure system needs. Our fittings ensure leak-proof operation, extended service life, and compliance with industry regulations—critical for maintaining operational efficiency and safety. Choose our high-pressure pipe fittings for reliable, API-compliant replacements that you can trust to keep your well operations running smoothly, without unplanned interruptions.
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