Product Overview

The TFDQ Pipeline Plugging Equipment Series is a robust, manually-driven machine designed for pipeline contractors and operating companies to perform safe, pressurized (hot tapping) isolation and plugging operations on live oil, gas, chemical, and utility pipelines, eliminating costly shutdowns and minimizing operational risk.

Core Advantages:

• Versatile Plugging Solution: Adapts to a wide range of pipeline diameters from DN40 to DN150 (NPS 1½” to 6″) using compatible plugging heads and accessories, offering a comprehensive plugging system.

• Safe Pressurized Operations: Enables reliable line stopping and pipeline isolation on live lines containing flammable or hazardous media, significantly enhancing on-site safety for your crew and the environment.

• Robust & Simple Design: Features a manual drive for dependable operation in various field conditions, clear mechanical travel indication, and a durable construction built for contractor use.

• Cost-Efficiency: By allowing repairs, modifications, or connections without pipeline shutdown, this equipment helps companies avoid massive production losses and expensive downtime.

Detailed Product Description & Technical Specifications

How It Works: The Pressurized Plugging Process
The TFDQ Pipeline Plugging Device is the power source for the plugging head. In a typical hot tapping and plugging operation:

1. A hot tap fitting is welded and a temporary valve is installed on the live pipeline.

2. The tapping machine drills through the pipe wall.

3. The TFDQ Plugging Machine, connected to a plugging head (like an inflatable plug or mechanical fitting), is mounted onto the temporary valve.

4. The plugging head is inserted through the valve and into the pipeline using the machine’s manual drive and extended travel.

5. The head is actuated (e.g., a plugging tool like a “expansion plug” – is inflated or set) to isolate the downstream section.

6. The isolated section can now be safely worked on for repairs, tie-ins, or valve replacements.

7. Upon completion, the process is reversed to restore flow.

Detailed Technical Parameters

Core Components & Compatibility

• Main Drive Unit: The central body provides the precise linear motion to insert and retract the plugging head. Its sturdy frame ensures stability during operation.

• Travel Indicator: A clear mechanical display shows the exact extension of the plugging head, allowing for precise positioning within the pipeline.

• Adaptor Flange: Connects securely to the temporary valve on the pipeline. Connection sizes can be customized based on project requirements.

• Compatible Plugging Heads & Tools: Works seamlessly with a range of plugging tools such as expansion plugs and other fittings. See our optional section for details.

Optional Accessories:

1 Plugging Adaptor

Note: 1. Connection dimensions can be customized according to user requirements.
2. “P” represents the adaptor pressure rating.

2 Expansion Plug

Note: Plugging head connection dimensions can be customized.

Solving Core Pain Points & Application Scenarios

Your Challenges, Our Solution:

• “Facing a pipeline repair that requires a complete shutdown, costing us tens of thousands per hour in lost production?” The TFDQ Pipeline Plugging Equipment allows for non-stop repairs, keeping your revenue flowing.

• “Worried about the safety risks of hot work and pressurized interventions on hazardous lines?” This system is designed specifically for safe isolation, providing a controlled barrier between live product and the work area.

• “Need a reliable, field-proven solution that works on various pipe sizes for different projects?” With two main models covering DN40-DN150, it’s a versatile tool for any contractor or service company.

• “Looking for durable equipment that doesn’t rely on complex power sources in remote locations?” The manual drive offers unparalleled reliability and simplicity.

Key Application Scenarios:

• Emergency Leak Repair: Isolate a leaking section on a crude oil or natural gas transmission line to perform a safe repair without shutting down the entire system.

• Pipeline Modification & Tie-Ins: Install new branches or valves onto existing live water, gas, or district heating networks in urban areas.

• Preventive Maintenance: Isolate sections to replace or maintain valves, meters, or other inline components during scheduled maintenance windows.

• Plant & Facility Piping: Perform safe isolations on complex process piping within refineries, chemical plants, or LNG terminals.

Comparative Advantages (Why Choose TFDQ?)

vs. Traditional Methods:

vs. Generic Competitors:
Our TFDQ series stands out due to its robust construction specifically for industrial contractor use, clear and reliable mechanical travel indication (not just guesswork), and compatibility with a wide range of standard and custom plugging heads. As a dedicated manufacturer, we focus on the durability and precision required for critical pipeline services.

Service & Support System

Your Partner in Pipeline Integrity:

• Pre-Sales Consultation: Our experts help you select the right equipment and tools for your specific pipeline and project requirements.

• Training: We provide comprehensive operation and safety training to ensure your team can use the machine effectively and safely.

• After-Sales Support: Backed by a responsive supplier network, we offer technical support, spare parts, and service to keep your operations running.

• Flexible Business Model: Explore our competitive price for sale of the complete system or inquire about equipment rental options for specific projects.

FAQ (Frequently Asked Questions)

Q1: Can this Pipeline Plugging Device be used on a pipeline carrying natural gas without shutting it down?

A: Absolutely. The TFDQ series is specifically designed for hot tapping and plugging equipment applications on live pipelines containing flammable gases like natural gas, LPG, and others, as well as crude oil, chemicals, and water. It enables safe isolation for downstream work.

Q2: What is the maximum pipeline pressure it can handle during a plugging operation?

A: Both the TFDQ0104 and TFDQ0506 models have a design pressure of 2.0 MPa (approximately 290 psi). It is crucial to ensure the plugging head (e.g., expansion plug) and all associated fittings are rated for the specific operating pressure of your pipeline.

Q3: Do you provide training for our crews on how to use this equipment safely?

A: Yes, we strongly recommend and offer comprehensive training programs. Safe operation of any pressurized pipeline isolation tool is paramount. We provide detailed operational and safety training, either at your site or our facility, to ensure your team is fully competent.

JSW Pipeline Services 

At JSW, we are more than just a supplier; we are a manufacturer and service provider deeply embedded in the pipeline industry. We understand the critical demands of pipeline integrity and the high stakes of maintenance and repair work. Our TFDQ Pipeline Plugging Equipment Series embodies our commitment to providing safe, reliable, and efficient solutions that protect your assets, your people, and your bottom line.

As a leading provider of specialized pipeline services and the manufacturer of robust pipeline service equipment, we offer end-to-end support. Let us help you solve your next pipeline challenge without interruption.

Ready to discuss your project needs or request a quote? Contact our team of experts today to find the perfect plugging solution for your company.