Line Stop Housings & Hot Tap Adapters 4 Proven Models for Live Pipeline Work
Hot tap adapters enable safe access to pressurized pipelines for modifications, while line stop housings anchor and guide the isolation mechanism during flow interruption and bypass operations.
🛠️ Line Stop Housing: Structural Support for Pipeline Isolation
Line stop housing is a precision-engineered enclosure that supports and guides the line stop head during insertion into pressurized pipelines. Designed for reliability and safety, it plays a critical role in pipeline intervention and flow control.
✅ Key Functions
- Anchors line stop equipment securely to the pipeline
- Facilitates deployment of the plugging head or inflatable bladder to block flow
- Maintains structural integrity under high-pressure conditions
🔍 Common Applications
- Isolating pipeline sections for maintenance, repair, or modification
- Enabling bypass flow to ensure uninterrupted service during interventions
- Supporting tandem line stops for complex isolation scenarios
🔩 Hot Tap Adapters for Live Pipeline Access
Hot tap adapters are essential fittings used in hot tapping operations—enabling safe, pressure-retaining access to live pipelines without service interruption. These adapters form the critical interface between the tapping machine and the pipeline, ensuring precision and integrity during drilling and coupon extraction.
✅ Key Functions
- Connect the tapping machine to the pipeline securely
- Enable accurate drilling and coupon retrieval under pressure
- Maintain seal integrity throughout the tapping process
🔍 Common Applications
- Installing valves, sensors, or branch fittings on active pipelines
- Preparing for line stop operations and flow isolation
- Deploying instrumentation without disrupting service
🔁 Combined Operation
Adapters and Housings operate in tandem to enable safe, efficient, and non-disruptive pipeline modifications. The hot tap adapter first creates controlled access to the pressurized line, allowing technicians to drill and retrieve a coupon without interrupting service. Once access is established, the line stop housing facilitates flow isolation—often incorporating a bypass to maintain continuous operation during intervention. This combined approach is essential for live system upgrades, valve installations, and complex isolations in industrial pipelines.
Models & Secifications
Flanged Valve Adapters (PTM-1000)
🔩 Functional Role of Flanged Valve Adapters
These adapters are designed to connect a flanged valve or fitting to a pipeline section that may not have a matching flange or thread. Their bolt-on design ensures a tight seal and structural stability, even under pressure or vibration.
🛠️ Common Applications
- Live pipeline interventions (hot tapping, line stopping)
- Valve installation on non-flanged pipe sections
- Cross-standard connections (e.g., ANSI to metric)
- Temporary or modular setups requiring frequent disassembly
🛠️ Core Design Features
- Flanged Base: Standard 4-bolt or custom flange patterns for mounting to valves, housings, or tees
- Threaded or Socket Ends: For connecting to plain-end or threaded pipe sections
- Pressure Ratings: Available in ANSI 150#, 300#, 600#, and 900# classes
- Seal Integrity: Designed to maintain leak-tight performance under vibration and thermal cycling
- Material Options: Carbon steel, stainless steel, or coated alloys for corrosion resistance
- Temperature Range: Typically -20°C to 80°C, suitable for oil, gas, water, and chemical systems
⚙️ Customization Options
- Flange Geometry: Adapted to match valve face dimensions or legacy system interfaces
- Thread Type & Size: BSP, NPT, or metric threads tailored to regional standards
- Coatings & Linings: Epoxy, PTFE, or zinc-rich primers for harsh environments
- Bypass Ports: Optional integration for flow diversion during line stop operations
- Extended Bodies: For clearance, insulation, or alignment with offset pipe runs
Threaded Valve Adapters (PTM-1000)
🔩 Functional Role of Threaded Valve Adapters
These adapters serve as the interface between a valve and the pipeline, allowing technicians to install or isolate components without welding or flanging. Their threaded design simplifies installation and removal, making them ideal for temporary or modular setups.
🛠️ Use Cases
- Hot tap and line stop operations on live pipelines
- Installing valves, sensors, or fittings without shutdown
- Temporary isolation or flow redirection
- Integration with legacy systems or non-standard pipe profiles
⚙️ Design Considerations
- Available in male-to-male, female-to-female, or mixed thread configurations
- Compatible with ASME, BSP, or metric thread standards
- Pressure ratings up to 100 bars, depending on class (150#, 300#, 600#, 900#)
- Materials include carbon steel, stainless steel, and coated alloys for corrosion resistance
These adapters are part of Propipe’s broader suite of hot tap and line stop fittings, which include split tees, housings, and distribution flanges—all engineered for compliance with ASME B31.3/4/8 and EN-10204 standards.
Hot Tap Adapters
🔩 Hot Tap Adapters
A hot tap adapter with a raised face flange is designed to provide safe, pressure-rated access to active pipelines. It serves as the connection point between tapping equipment and the pipeline, allowing technicians to drill into the line and install valves or isolation tools without interrupting flow.
🛠️ Common Applications
- Valve installation and system tie-ins on live pipelines
- Flow isolation and bypass setup for maintenance or repair
- Pipeline expansion or modification without shutdown
- Integration with tapping machines and line stop equipment
⚙️ Design Features
- Raised face flange for secure, gasketed sealing
- Machined bore or threaded entry for tapping tool alignment
- Compatible with manual, pneumatic, or hydraulic tapping systems
- Pressure rating options: ANSI 150#, 300#, 600#, and 900#
- Available sizes: typically from 2″ to 42″, with larger diameters available upon request
- Material options include carbon steel, stainless steel, or coated alloys
- Manufactured to meet industry standards for pressure integrity and traceability
Line Stop Housings
🔧 Functional Role of a Line Stop Housing
This housing is part of a modular system used in live pipeline interventions, where flow must be halted without depressurizing or draining the line. After a hot tap creates access, the line stop housing is bolted in place and used to guide and seal the plugging head (or stopper) that blocks flow inside the pipe.
🛠️ Common Applications
- Isolating sections of pipeline for valve installation or repair
- Enabling tie-ins or rerouting without service interruption
- Supporting tandem line stops for bypass operations
- Used in oil, gas, water, and industrial utility systems
⚙️ Specification & Design Options
- Size Range: Available from 2″ to 56″ nominal pipe diameter
- Flange Type: Raised face flange for gasketed, bolt-on sealing
- Actuator Compatibility: Supports mechanical or inflatable line stop heads
- Pressure Ratings: ANSI 150#, 300#, 600#, and 900# (up to 100 bar)
Material Options:
- Carbon steel (ASTM A105, API 5L Gr.B)
- Stainless steel for corrosion resistance
- Coated alloys with epoxy or zinc-rich primers
- Standards Compliance:
- ASME B31.3, B31.4, B31.8 for pipeline integrity
- EN-10204 3.1 certification for traceability
This housing integrates seamlessly with modular line stop systems and is built to withstand demanding field conditions while ensuring safety, reliability, and compliance.
🔧 Custom Housings & Adapters for Demanding Field Conditions
Enerteq delivers precision-engineered line stop housings and hot tap adapters customized to meet the toughest field requirements. Whether you’re working with non-standard pipe geometries, elevated pressure classes, or legacy system interfaces, our engineering team adapts each component to your exact pipeline specifications.
We offer tailored solutions for:
- Adapter and housing configurations to match pipe size, wall thickness, and pressure rating
- Bypass port integration for continuous service during line stop operations
- Custom mounting interfaces for elbows, blind flanges, or reduced branch connections
- Material and seal selection for extreme temperatures, corrosive media, or offshore environments
From live tapping to complex isolations, Enerteq’s field-proven designs ensure safety, reliability, and compliance across every job site.
Let’s talk specs. Share your project parameters, and we’ll deliver hot tap and line stop solutions that align with your technical standards and operational goals.
At Enerteq Solutions, we work closely with our affiliate ESI, whose Flange Spreader line has become a trusted name in flange tooling worldwide. By partnering with ESI, we extend their proven expertise in safe, efficient flange separation into our broader portfolio of pipeline integrity solutions. This affiliation ensures our customers benefit from tools engineered for reliability, operator safety, and reduced downtime — whether for gasket replacement, routine maintenance, or complex industrial applications. Together, Enerteq and ESI deliver flange tooling solutions that set the standard for performance and precision in demanding environments. Review ESI’s website for rentals and purchase options at flangespreaderrental.com