3916047 ANSI Fing RF 150 LB 6″ H2S Gasket, 5030284 8″ SCH 40 90° Elbow & Pipeline Fittings

Introduction

Pipeline systems are the backbone of oilfield operations, responsible for transporting drilling fluids, natural gas, and crude oil—where leak-proof connections, corrosion resistance, and pressure resistance directly determine operational safety and efficiency. Our comprehensive pipeline fitting lineup covers all key models provided, including 3916047 ANSI Fing RF 150 psi 6″ H2S Gasket, 5030284 8″ SCH 40 90° Elbow, 1220169 B7 1-1/8-7 NC X 7″ Full Thread Stud, ASG14298 3″ 90° Elbow, and 9620063 Modified 1-Inlet Degasser Pipe Assembly. These fittings are fully compatible with oilfield pipeline systems, degassers, and fluid transport equipment, meeting ANSI, API, and industry-specific standards for H2S service, pressure ratings, and dimensional precision.

Our core purpose is to solve the specific pain points of oilfield operators, pipeline maintenance teams, and drilling contractors: gasket leakage causing H2S and fluid loss, pipe elbow corrosion and breakage under high pressure, loose fasteners (studs, bolts, nuts) leading to connection failure, incompatible fittings causing installation delays, and inadequate H2S resistance resulting in safety hazards. We provide 100% interchangeable, high-durability pipeline fittings that ensure leak-proof connections, resist corrosion and high pressure, extend service life, and eliminate unplanned downtime—all while meeting the strict safety and technical standards required for oilfield pipeline operations.

Product Overview

Our product portfolio focuses on oilfield pipeline fittings, divided into five core categories to cover all critical pipeline needs: gaskets & seals (3916047, 1220224, 1305880), fasteners (1220169, 3919015, 1444693, 1305116, 1305877), pipe fittings (5030284, 5030120, 5054191, 5059020, ASG14298, ASG14494), pipes & pipe assemblies (9620063, 55-110, 55-316, 55-220, ASG10203), and flanges (5035087, ASG11929, ASG424438).

All fittings are manufactured in strict compliance with API 601 (gaskets for H2S service), ANSI B16.5 (flanges), API 5L (steel pipes), and NACE MR0175/ISO 15156 (for H2S corrosion resistance), ensuring reliable performance in harsh oilfield environments. Backed by 24 years of experience in manufacturing oilfield pipeline fittings, we have supplied 75,000+ units to 40+ countries, with a field failure rate of 0.24 per 1,000 units—far below the industry average of 1.02 per 1,000 units. Each fitting undergoes 11 rigorous quality inspections, including pressure testing (up to 5000 psi), H2S corrosion resistance testing, dimensional precision verification, and material composition analysis, guaranteeing suitability for 24/7 continuous operation in high-pressure, H2S-rich oilfield conditions.

Function & Structural Features

Every pipeline fitting is engineered to solve specific operational pain points, with structural designs that prioritize leak-proof performance, durability, and ease of installation—explained in simple, practical terms that avoid technical jargon:

Gaskets & Seals

The 3916047 ANSI Fing RF 150 psi 6″ H2S Gasket is designed for H2S-rich environments, made of high-temperature, corrosion-resistant material with a flexible core that conforms to flange surfaces—solving the problem of gasket leakage and H2S escape. It withstands pressure up to 150 psi and temperatures up to 260°C, with a service life of 18,500 operating hours—4,200 hours longer than standard gaskets. The 1220224 API R-35 Gasket is a ring-type joint gasket, ideal for high-pressure flanges, with a metal-to-metal seal that prevents leakage even under pressure fluctuations, solving the issue of seal failure in high-pressure pipeline systems.

Fasteners

The 1220169 B7 1-1/8-7 NC X 7″ Full Thread Stud is made of alloy steel (A193 B7) with a tensile strength of 120,000 psi, resistant to corrosion and high temperature—solving the problem of stud breakage and loosening in high-pressure pipeline connections. The 3919015 PLT GR B7 3/4-10NC X 4″ Bolt and 1305116 3/4-10NC Hex Nut are paired for secure flange connections, with a torque rating of 180 ft-lbs, ensuring tight, leak-proof joints that won’t loosen under vibration.

Pipe Fittings & Pipes

The 5030284 8″ SCH 40 90° Elbow is made of carbon steel (A535B) with a wall thickness of 0.593″, resistant to corrosion and pressure up to 150 psi—solving the problem of elbow breakage and fluid leakage in pipeline turns. The 9620063 Modified 1-Inlet Degasser Pipe Assembly is pre-assembled for easy installation, with a modified design that improves fluid flow and degassing efficiency, eliminating the need for on-site assembly and reducing installation time by 6 hours per unit. Pipes like 55-220 (A535B SCH 40, 8″ diameter, 21 ft length) are made of high-strength carbon steel, with a corrosion-resistant coating that extends service life to 25,000 operating hours.

Flanges

The 5035087 8″ RFSO 150 psi Flange and ASG424438 6″ RFWN Flange are designed for leak-proof connections, with a raised face (RF) that ensures a tight seal with gaskets. The ASG11929 3-1/8″ 5000 psi Flange is built for high-pressure applications, with a compact design that fits in tight spaces, solving the problem of high-pressure flange leakage and installation constraints.

Applicable Working Conditions

Our pipeline fittings are specifically engineered for the extreme conditions of onshore and offshore oilfields, where high pressure, H2S presence, corrosion, and temperature fluctuations are common. They are suitable for:

• Onshore oilfields (Permian Basin, Siberia, Xinjiang): H2S concentration up to 1500 ppm, operating pressure 150-5000 psi, temperature -40°C to 260°C, and compatibility with carbon steel pipelines (A535B, SCH 40).

• Offshore drilling platforms (North Sea, Caspian Sea): High humidity (85-95%), saltwater corrosion, H2S service, and pre-assembled pipe assemblies for easy installation in limited space.

• Oilfield systems: Degassers (9620063 pipe assembly), fluid transport pipelines, and high-pressure flange connections that require leak-proof, corrosion-resistant fittings.

All fittings are compatible with standard oilfield pipeline systems, ensuring seamless integration and immediate use without modifications or custom fabrication.

We supply the following spare parts:

On-Site Fault Repair Cases

We’ve accumulated countless on-site repair experiences, helping operators solve urgent pipeline fitting failures and avoid safety hazards. Below are 4 real, detailed cases with specific data and customer feedback—reflecting the practical value of our products:

Case 1: Onshore Oilfield, Siberia, Russia

Location: Siberia Oilfield; Equipment: Pipeline System with 3916047 Gasket; Load: 150 psi, H2S concentration 1200 ppm, 200 m³/h fluid flow; Fault: Gasket leakage, H2S escape, fluid loss 50 liters/hour. Data: Gasket wear depth 0.3mm, leakage rate 50 L/h, H2S concentration near flange 80 ppm (standard ≤10 ppm). Solution: Replaced with 3916047 ANSI Fing RF 150 psi 6″ H2S Gasket + 1305877 2HM 3/4-10NC Nut. Repair Effect: Leakage eliminated, H2S concentration reduced to 5 ppm, gasket service life extended to 18,500 hours. Customer Feedback: “The H2S-resistant gasket solves our leakage problem, and we no longer have safety warnings—maintenance time is cut by 8 hours per week.”

Case 2: Offshore Drilling Platform, Caspian Sea

Location: Caspian Sea Offshore Rig; Equipment: Pipeline Turn with 5030284 Elbow; Load: 150 psi, saltwater corrosion, 180 m³/h crude oil flow; Fault: Elbow corrosion and leakage, wall thickness reduced to 0.3mm (standard 0.593mm). Data: Leakage rate 35 L/h, corrosion rate 0.05mm/month. Solution: Replaced with 5030284 8″ SCH 40 90° Elbow + corrosion-resistant coating. Repair Effect: Corrosion rate reduced to 0.008mm/month, wall thickness maintained at 0.593mm, leakage eliminated, elbow service life extended to 25,000 hours. Customer Feedback: “The elbow resists saltwater corrosion perfectly, and we haven’t had a leak in 12 months—saving us $20,000 in repair costs.”

Case 3: Oilfield, Texas, USA

Location: Permian Basin; Equipment: High-Pressure Flange Connection with ASG11929 Flange; Load: 5000 psi, 220 m³/h natural gas flow; Fault: Flange leakage, pressure drop 0.8 psi/hour. Data: Flange seal damage, torque loss 30 ft-lbs, leakage rate 20 L/h. Solution: Replaced with ASG11929 3-1/8″ 5000 psi Flange + 1220169 B7 Studs. Repair Effect: Pressure drop stabilized at 0.1 psi/hour, leakage eliminated, torque maintained at 180 ft-lbs, flange service life 20,000 hours. Customer Feedback: “The high-pressure flange handles extreme pressure without leaking, and the studs stay tight—we’ve avoided costly shutdowns.”

Case 4: Drilling Site, Kazakhstan

Location: Kazakhstan Oilfield; Equipment: Degasser with 9620063 Pipe Assembly; Load: 150 psi, 150 m³/h drilling fluid flow; Fault: Original pipe assembly leaking, degassing efficiency 70%, installation time 8 hours. Data: Pipe joint leakage 40 L/h, degassing efficiency 70% (target 90%). Solution: Replaced with 9620063 Modified 1-Inlet Degasser Pipe Assembly. Repair Effect: Leakage eliminated, degassing efficiency improved to 93%, installation time reduced to 2 hours, pipe assembly service life 19,000 hours. Customer Feedback: “The pre-assembled pipe is easy to install, and the modified design improves degassing—we’ve increased operational efficiency by 20%.”

Maintenance & Operation Tips

Our senior pipeline maintenance engineers provide practical, field-tested tips to extend fitting life and avoid common failures—based on real on-site experience:

1. Gaskets: Inspect H2S gaskets (3916047, 1220224) every 30 days for wear or damage; replace if compression exceeds 10% of original thickness. Never reuse gaskets—reusing leads to leakage and H2S risks. Always match gaskets to flange type (RF, RTJ) and pressure rating.

2. Fasteners: Tighten studs (1220169) and bolts (3919015) to the recommended torque (180 ft-lbs for 3/4″ size) using a calibrated torque wrench. Check torque every 15 days to prevent loosening from vibration. Avoid over-tightening, which can damage flange surfaces.

3. Pipes & Elbows: Inspect pipes (55-110, 55-220) and elbows (5030284) monthly for corrosion; use a thickness gauge to check wall thickness—replace if it drops below 0.4mm. Apply corrosion-resistant coating annually to extend service life.

4. Flanges: Clean flange faces before installing gaskets—remove dirt, rust, and old gasket material to ensure a tight seal. Inspect flange faces for scratches; deep scratches (≥0.1mm) can cause leakage and require repair.

5. Storage: Store fittings in a dry, well-ventilated warehouse (temperature 5-28°C, humidity ≤60%) to prevent rust. Keep gaskets in sealed containers to avoid moisture damage. Label fittings by size and pressure rating to avoid incorrect installation.

FAQ (Frequently Asked Questions)

Conclusion

Our high-performance oilfield pipeline fittings—including3916047 ANSI Fing RF 150 psi 6″ H2S Gasket, 5030284 8″ SCH 40 90° Elbow, 1220169 B7 Full Thread Stud, and 9620063 Degasser Pipe Assembly—are engineered to solve the most critical challenges oilfield operators face with pipeline systems: leakage, corrosion, connection failure, installation delays, and H2S safety hazards. Backed by 24 years of manufacturing expertise, strict API, ANSI, and NACE certifications, and a proven track record of 75,000+ reliable installations worldwide, our fittings deliver unmatched durability, leak-proof performance, and safety.

Every fitting is designed with the end user in mind—easy to install, low maintenance, and built to withstand the harshest oilfield conditions. Whether you need H2S-resistant gaskets, high-pressure flanges, corrosion-resistant elbows, or pre-assembled pipe assemblies, our comprehensive product line has you covered. We provide clear procurement standards (certifications, pressure ratings, size compatibility) and technical support to solve on-site problems, ensuring your pipeline systems operate safely and efficiently.

If you’re looking for reliable, long-lasting pipeline fittings that reduce downtime, improve safety, and cut maintenance costs, look no further. Contact us today to select the right fitting for your oilfield pipeline system, degasser, or fluid transport equipment. Our team will provide professional advice to match your specific on-site needs, helping you keep your oilfield operations running smoothly and safely. All our products come with a quality guarantee, giving you peace of mind for your critical pipeline operations.

contact us ：

Emeil: [email protected]  

whatsapp: +86 15275658619