Noshok
2602/2702 Series 2-Valve Mini Block & Bleed Manifold Valves

Key Features

  • Combines isolating and venting in a single valve, eliminating the need for 
    tubing and fittings
  • Block valve isolates the downstream process fluids and the bleed valve exhausts upstream fluids enabling static pressure transmitters, switches or gauges to be 
    removed without disturbing the permanent piping installation
  • Valves are located on the top to fit into compact spaces and two holes are 
    provided for mounting, venting is to the left
  • 100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance 
    and reliability
  • Soft tip valves feature a patented Delrin® non-rotating soft tip stem, and a
    back-up metal-to-metal seal (U.S. Patent 6,820,857)
  • 2602 Series hard seat valves have 10,000 psi pressure rating @ 200 °F
  • 2702 Series soft tip valves have 6,000 psi pressure rating @ 200 °F
  • Blow-out proof stem provides a secondary stem seal in the full 
    open position
  • FKM o-ring seal and PTFE back-up ring below the stem threads to protect from
    corrosion and galling; PTFE or Grafoil® packing optional
  • All stems are 316 stainless steel
  • Stem and bonnet threads are rolled for strength and ease of operation
  • One-piece bonnet with a metal-to-metal seal to the valve body below the 
    bonnet threads
  • Slotted spring pin to prevent accidental loosening
  • Vinyl dust caps for bonnets and stems (non-packing)
  • Patented body-to-bonnet, metal-to-metal seal is designed to significantly
    increase the pressure range of the valve (U.S. Patent 7,758,014)
Click to Enlarge

SPECIFICATIONS
Materials Zinc-nickel plated steel, electropolished 316 stainless steel
Connections 1/4" NPT Standard, 1/8" NPT optional, right venting optional
Pressure ratings Hard Seat: 10,000 psi @ 200 °F
Soft Seat: 6,000 psi @ 200 °F
Orifice size 0.141"
Flow coefficient Hard Seat: CV 0.38
Soft Seat: CV 0.38
Stem seal & type All 316 stainless steel stems with FKM o-ring and PTFE back-up ring below the threads, PTFE or Grafoil® packing optional
Options Panel mountings, o-ring materials, handles, packings, regulating stem and stem tips

Catalogs