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SANDWICH® Valve
Equipment Type
Pressure/ANSI Class
Size
The SANDWICH® Valve is designed for use with TDW Tapping, Plugging Machines, and fittings during hot tapping and plugging (HT&P) operations. SANDWICH® Valves have a flat faced, serrated gasket surface and are supplied to match ASME class 150, 300, or 600 flanges.
Specifications
- 4-inch through 48-inch
- Engineered to match ASME Class 150, 300 or 600 flanges
- Valves 24-inch and larger are hydraulically operated
Key Features
- Bidirectional design allows for installation in any direction
- Can be oriented parallel or perpendicular to the pipeline to fit the excavation
- Equipped with an oversized bore, positive shutoff, built-in pressure equalizing valve and integral flange studs
Common Applications
- Hot tapping and isolation operations, including tie-ins, crossovers, line extensions, connections, main relocations, and bypasses
The SANDWICH® Valve is designed for use with TDW Tapping, Plugging Machines, and fittings during hot tapping and plugging (HT&P) operations. SANDWICH® Valves have a flat faced, serrated gasket surface and are supplied to match ASME class 150, 300, or 600 flanges.
Equipment Type
Pressure/ANSI Class
Size
Specifications
- 4-inch through 48-inch
- Engineered to match ASME Class 150, 300 or 600 flanges
- Valves 24-inch and larger are hydraulically operated
Key Features
- Bidirectional design allows for installation in any direction
- Can be oriented parallel or perpendicular to the pipeline to fit the excavation
- Equipped with an oversized bore, positive shutoff, built-in pressure equalizing valve and integral flange studs
Common Applications
- Hot tapping and isolation operations, including tie-ins, crossovers, line extensions, connections, main relocations, and bypasses
