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Product part numbers may have changed. Please contact your local TDW representative to verify.
sandwich-valve

Equipment Type

ISO-type-Valve-100ppi

Pressure/ANSI Class

 ISO-Pressure-153-100ppi

Size

ISO-sizes-4-48-100ppi

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
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