Double Block and Bleed

Needle Valve

Parker Autoclave Engineers Block and Bleed needle valve is designed for calibration applications and built for safe reliable operation to 20,000 psi (1379 bar).

  • Medium Pressure Tubing sizes: 1/4" - 1"
  • 20DBNV series provides large valve performance in a small package.
  • Rising stem/bar stock body design.
  • Metal-to-metal seating for excellent corrosion resistance and temperature ranges.
  • PTFE encapsulated packing provides dependable stem and body sealing.
  • Vee tip stem.
  • Temperature from -0ºF (-17.8ºC) to 450ºF (232ºC)

Parker Autoclave Engineers Double Block and bleed valves are used in many applications such as the chemical/petrochemical, and oil and gas industries. This valve utilizes the coned and threaded design for bubble-tight seal performance in gas and liquid service.This three valve system provides a convenient method of blocking, bleeding and calibrating pressure transducers and gauges. These valves are complemented by a complete line of fittings, tubing and accessories.
válvula de doble bloqueo   sangrado   drenanaje   venteo