Four-Way Type Stopple Fitting Series

Product Overview

Our Four-Way Type Stopple Fittings are engineered for pipeline contractors and companies requiring safe, non-disruptive isolation and modification of low to medium-pressure pipelines in oil, gas, chemical, and municipal service networks, enabling efficient maintenance without shutdown.

Core Advantages:

• Engineered for Safety & Reliability: Designed to meet stringent GB50251, ASME B31.3/B31.8 standards, ensuring integrity during hot tapping and line stop operations.

• Maximum Operational Flexibility: The four-way design provides multiple outlets for venting, bypass, or instrumentation, making it ideal for complex line stop fitting installation and Stopple Fittings procedures.

• Robust Construction & Customization: Manufactured from high-grade materials like Q345R or ASME A515/A516, with pressure ratings up to Class 150/2.5MPa and customizable dimensions to fit your exact specifications.

• Complete Plugging System Component: Sold as a complete package or individual components, seamlessly integrating with your existing pipeline plugging fittings and tools.

Detailed Product Description

The Four-Way Type Stopple Fitting is a specialized Full-Encirclement Split Tee with Outlet used in Hot Tapping and Plugging operations. It is welded onto the live pipeline, allowing a line stopper fitting (or Stopple® plugging head) to be inserted through a temporary valve to isolate a section of pipe for maintenance, repair, or modification—all while the system remains under pressure.

Technical Specifications

Core Components Highlight:

• Split Tee Body: The main fitting, precision-machined to ensure a perfect fit and strong weld seam integrity.

• Flanged Outlets: Provide standardized connections for valves and machines, facilitating quick and secure attachment of hot tapping and plugging equipment.

• Sealing System: Includes high-performance gaskets and seal rings, forming a pressure-activated sealing barrier critical for safe isolation.

Problems Solved

Client Pain Points Addressed:

• “Need to perform maintenance without costly and disruptive pipeline shutdowns?”

• “Concerned about the safety risks of live pipeline intervention and require certified, reliable pipeline isolation fittings?”

• “Looking for a versatile solution that can adapt to various pipeline sizes and pressures for different projects?”

• “Frustrated with sourcing multiple components? Need a complete, ready-to-install pipeline plugging fittings package?”

Primary Application Scenarios:

• Scenario 1: Pipeline Repair/Replacement: Isolating a damaged section to allow for cut-out and replacement while the main line remains in service.

• Scenario 2: New Branch Connection: Adding a new line via hot tapping without interrupting flow, using the fitting as a reinforced branch.

• Scenario 3: Valve Installation/Replacement: Safely installing or replacing inline valves on active pipelines.

• Scenario 4: Emergency Block-off: Providing a reliable isolation point for emergency response or planned maintenance.

Comparative Advantages

Vs. Traditional Methods (Full Shutdown/Welding Pad):

Vs. Other Fittings: Our fittings are not just commodities. As a specialized manufacturer, we offer:

• Custom Design: We tailor dimensions and pressure ratings, unlike off-the-shelf suppliers.

• Complete System Support: We provide the fitting and expert knowledge on the entire Hot Tapping and Line Stop procedure.

• Traceability & Certification: Full material and pressure test certifications provided, ensuring quality for critical contractor projects.

Certifications, Safety & Quality Standards

• Design & Manufacturing: Compliant with international pressure piping codes (ASME, GB).

• Quality Assurance: Manufactured in an ISO 9001-certified factory. Each fitting undergoes rigorous dimensional inspection and non-destructive testing (NDT) as required.

• Material Verification: All materials come with Mill Test Certificates (MTCs) to guarantee chemical and mechanical properties.

Customer Testimonials & Success Cases

Trusted by Leading Pipeline Service Companies and Oil & Gas Operators Worldwide.

Case Study: Natural Gas Pipeline Section Isolation

• Client: A major urban gas company.

• Challenge: Isolate a 12-inch section of a medium-pressure gas line to replace a defective valve, located in a high-density area where shutdown was unacceptable.

• Solution: Our engineered Four-Way Type Stopple Fitting was installed using a hot tapping and line stop procedure.

• Result: Successful isolation was achieved in under 8 hours. The valve was replaced with zero gas release to the atmosphere and no supply interruption to end-users, demonstrating the safety and efficiency of the solution.

Service & Support Ecosystem

1. Pre-Sale Consultation: Our engineers provide free technical support to ensure the fitting design matches your project specs.

2. Training: We offer guidance on installation best practices for line stop fitting installation.

3. After-Sales & Warranty:

   • Comprehensive product warranty.

   • Global logistics support for spare parts (bolts, gaskets, seals).

   • Technical support available throughout your project lifecycle.

4. Flexible Commercial Terms: We offer competitive prices for our high-quality fittings. Contact us for a quote or to discuss for sale or project-specific options.

FAQ (Frequently Asked Questions)

Q1: Can this fitting be used for both hot tapping and plugging (line stopping)?

A: Absolutely. The Four-Way Type Stopple Fitting is a fundamental component in both hot tapping fittings and line stop operations. It provides the permanent, reinforced branch on the pipeline through which all subsequent hot tap and plugging machines operate.

Q2: What information do you need to provide a custom fitting?

A: To ensure a perfect fit, we typically require the pipeline’s outside diameter (O.D.), wall thickness, operating pressure and temperature, fluid medium, and the preferred design standard (e.g., ASME or GB). Our team will guide you through the process.

Q3: Do you provide installation services or just the equipment?

A: As a leading manufacturer and supplier, our core focus is providing the highest quality Pipeline Plugging Components. We work closely with qualified pipeline service contractors who perform the installation. We can recommend experienced partners if needed.

About JSW Pipeline Services

In the high-stakes world of pipeline integrity, you need a partner that offers both superior equipment and proven field expertise. JSW Pipeline Services stands apart as a premier manufacturer of specialized Hot Tapping and Plugging Fittings and a trusted provider of critical pipeline intervention services.

While many companies act only as suppliers or only as contractors, JSW’s unique dual-capability model ensures seamless project execution. Our factory designs and builds robust, code-compliant Stopple Fittings and systems based on decades of field experience. This firsthand knowledge of what contractors need under real-world pressures is built into every product we make.

When you partner with JSW, you get more than just a machine or a component for sale. You gain access to a comprehensive solution:

• Custom-Engineered Products: Like the Four-Way Stopple Fitting, built to your exact specifications.

• Unmatched Technical Support: From design phase through installation.

• Proven Field Methodology: Ensuring the tools we manufacture deliver results in your hands.

Don’t settle for a generic part. Choose a partner invested in your project’s success. Contact the JSW team today for a detailed consultation. Let’s discuss your specific pipeline isolation or modification challenge and engineer the optimal solution together.