Slim Valves: 2 Compact Models Engineered for Constrained Pipeline Access
Their reduced face-to-face dimensions make them ideal for line stop and hot tap operations by minimizing the required distance between the valve and the drilling or plugging machine.
Slim Valves by Propipe Precision Line Stop Solutions
The Propipe Slim Valve (AKA TDW Sandwich valve) is a compact, high-performance gate-style valve engineered for hot tap and line stop operations on pressurized pipelines. Designed for live system access, it enables safe isolation of flow without requiring shutdown—making it ideal for maintenance, tie-ins, and emergency interventions.
Its reduced face-to-face dimensions shorten the distance between the valve and the tapping or plugging machine, optimizing setup in tight spaces and improving operational efficiency.
🛠️ How It Works:
- Installed between flanges with a slim, space-saving profile
- Provides a sealing interface for hot tap or line stop equipment
- After tapping or plugging, the valve is closed to isolate the pipeline
- Compatible with both mechanical and hydraulic actuators, including TDW-style systems
🔧 Key Functions:
- Hot Tap Interface: Enables controlled drilling into live pipelines through a pre-installed fitting
- Line Stop Isolation: Works with line stop actuators to block flow for maintenance or rerouting
- Compact Installation: Slim body reduces the required distance for tapping and plugging operations
- High-Pressure Operation: Rated for ASME Classes 150# to 900#, suitable for oil, gas, water, and industrial systems
✅ Key Benefits:
- Live pipeline access without depressurization
- Supports both hot tap and line stop procedures
- Minimizes setup distance in confined or congested areas
- Compatible with a wide range of tapping and plugging equipment
- Trusted in critical infrastructure, emergency response, and planned maintenance
Propipe Line Stop Valves: Slim Valve Specifications
Mechanical Slim Valves
- Standard Sizes: 2″ to 22″.
- Pressure Ratings: 150#, 300#, 600#, and 900#.
- Design Pressure: Up to 2500 PSI.
- Compatibility: 100% compatible with HOTTAP & LineStop equipment from other manufacturers.
- Maximum Operating Temperature: 180ºF (82ºC).
Hydraulic Slim Valves
- Standard Sizes: 24″ to 56″.
- Pressure Ratings: 150#, 300#, 600#, and 900#.
- Design Pressure: Up to 2500 PSI.
- Compatibility: 100% compatible with HOTTAP & LineStop equipment from other manufacturers.
- Maximum Operating Temperature: 180ºF (82ºC).
Seals
Nitrile seals are supplied as standard with the Propipe slim valve, with Viton seals available upon request for enhanced chemical and temperature resistance.
Specifications
- Sizes: Available in sizes ranging from 2″ to 56″.
- Pressure Ratings: 150#, 300#, 600#, and 900#.
- Design Pressure: Up to 2500 PSI.
- Operation: Can be manually or hydraulically operated.
- Compatibility: 100% compatible with HOTTAP & LineStop equipment from other manufacturers.
- Maximum Operating Temperature: 180ºF (82ºC).
- Test Pressure: 1.5 times the design pressure as per ASME standards.
- Tests: Hydraulic and functional tests under pressure.
- Materials: High-strength steel (ASTM A 516 Gr 60/URSSA 690/S355 J2+N).
- Seals: Nitrile/Viton O rings (available upon request).
Custom Slim Valve Solutions for Your Pipeline Maintenance Requirements
Propipe Slim Valves can be precision-modified to meet your unique field conditions and operational standards. Whether you need non-standard flange configurations, extended boring clearance, or integration with specialized hydraulic systems, our engineering team is ready to adapt valve geometry and performance to your exact specifications. From custom face-to-face dimensions to actuator compatibility, we support special-order configurations that align with your pipeline layout, pressure class, and maintenance strategy.
Contact us directly to discuss your project requirements—we’ll deliver a slim valve solution engineered for reliability, compliance, and field-ready performance.