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  • Block and Bleed Valves

    Keep a calibration system pressurized with a fluid or gas while venting the pressure from the device being calibrated.

  • 2070 Series Hard Seat 2 Valve Block and Bleed Valves

    • 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 instruments to be removed without disturbing the permanent piping installation
    • The 1/4" NPT vent plug is located 90° to the left and may be removed and replaced with exhaust piping to direct the fluids to a safe location
    • 100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability
    • 10,000 psi hard seat 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
    • All stem 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 cap for bonnet and stem (non-packing)

    *Note: If a packing option is chosen, maximum pressure rating is 6,000 PSI. Refer to the "Pressure vs. Temperature: Packing Style with Compatible Fluid" .pdf at the right-hand side of this page.

     All NOSHOK valve products conform to the MSS SP-99 instrument valves standards, and valves supplied with packing
       also conform to MSS SP-132 compression packing systems for instrument valves standard.

  • 2070 Series Hard Seat 2 Valve Block and Bleed Valves

    • 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 instruments to be removed without
      disturbing the permanent piping installation
    • The 1/4" NPT vent plug is located 90° to the left and may be removed and replaced with exhaust piping to direct the fluids to a safe location
    • 100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance
      and reliability
    • 6,000 psi pressure rating @ 200 °F
    • Replaceable Delrin® seat, and straight through porting for bidirectional,
      high capacity flow and easy roddable cleaning
    • PCTFE or PEEK soft seat optional
    • 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 packing optional
    • All stems are 316 stainless steel
    • All stem 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 cap for bonnet and stem (non-packing)

     All NOSHOK valve products conform to the MSS SP-99 instrument valves standards, and valves supplied with packing also
      conform to MSS SP-132 compression packing systems for instrument valves standard.

  • 3070 Series Hard Seat 3 Valve Double Block and Bleed Valves

    • 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 instruments to be removed without
      disturbing the permanent piping installation on the bottom
    • The 1/4" NPT vent plug is located 90° to the left and may be removed and replaced with exhaust piping to direct the fluids to a safe location
    • 100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance
      and reliability
    • 10,000 psi hard seat 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
    • All stem 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 cap for bonnet and stem (non-packing)

    * Note: If a packing option is chosen, maximum pressure rating is 6,000 PSI.  Refer to the "Pressure vs. Temperature: Packing Style with Compatible Fluid" .pdf on the right-hand side of this page.

     All NOSHOK valve products conform to the MSS SP-99 instrument valves standards, and valves supplied with packing
       also conform to MSS SP-132 compression packing systems for instrument valves standard.

     

  • 600 Series Hard Seat Block and Bleed Valves

    • Block & bleed design allows pressure to be bled off without disturbing the
      permanent piping installation, allowing quick and easy removal or
      replacement of instruments
    • 100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance
      and reliability
    • 10,000 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
    • All stem 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 cap for bonnet and stem (non-packing)
    • 0.090" bleed hole located on the bottom is controlled by a
      1/4"-20 UNF-2A bleed screw

    *Note: If a packing option is chosen, maximum pressure rating is 6,000 PSI.  Refer to the "Pressure vs. Temperature: Packing Style with Compatible Fluid" .pdf to the right-hand side of this page.

    All NOSHOK valve products conform to the MSS SP-99 instrument valves standards, and valves supplied with packing
       also conform to MSS SP-132 compression packing systems for instrument valves standard.

  • 600 Series Hard Seat Block and Bleed Valves

    • Block & bleed design allows pressure to be bled off without disturbing the
      permanent piping installation, allowing quick and easy removal or
      replacement of instruments
    • 100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance
      and reliability
    • 6,000 psi pressure rating @ 200 °F
    • Replaceable Delrin® seat and straight through porting for bidirectional,
      high capacity flow and easy roddable cleaning
    • PCTFE or PEEK soft seat optional
    • 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 packing optional
    • All stems are 316 stainless steel
    • All stem 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 cap for bonnet and stem (non-packing)
    • 0.090" bleed hole located on the bottom is controlled by a 1/4"-20 UNF-2A bleed screw

    All NOSHOK valve products conform to the MSS SP-99 instrument valves standards, and valves supplied with packing also
       conform to MSS SP-132 compression packing systems for instrument valves standard.

  • 800 and 850 Series Bleed Valves

    • Bleed valves provide a convenient means to relieve process pressures
      trapped between a shut off valve and the instrument
    • Uses the same bonnet assemblies of the 100/150 Series mini valves with
      an integrated single threaded body for insertion in vent port
    • 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)
    • 100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and
      reliability 10,000 psi hard seat pressure rating @ 200 °F
    • Available in zinc-nickel plated steel, electropolished stainless steel, and brass
    • FKM o-ring seal and PTFE back-up ring below the stem threads to protect
      from corrosion and galling; PTFE or Grafoil® (800 Series only) packing optional
    • All stems are 316 stainless steel
    • All stem threads are rolled for strength and ease of operation
    • 0.159" bleed port
    • 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)

    *Note: If a packing option is chosen, maximum pressure rating is 6,000 PSI.  Refer to the "Pressure vs. Temperature: Packing Style with Compatible Fluid" .pdf to the right-hand side of this page.

     All NOSHOK valve products conform to the MSS SP-99 instrument valves standards, and valves supplied with packing
       also conform to MSS SP-132 compression packing systems for instrument valves standard.

  • 800 and 850 Series Bleed Valves

    • Bleed valves provide a convenient means to relieve process pressures
      trapped between a shut off valve and the instrument
    • Uses the same bonnet assemblies of the 100/150 Series mini valves with
      an integrated single threaded body for insertion in vent port
    • 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)
    • 100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and
      reliability 10,000 psi hard seat pressure rating @ 200 °F
    • Available in zinc-nickel plated steel, electropolished stainless steel, and brass
    • FKM o-ring seal and PTFE back-up ring below the stem threads to protect
      from corrosion and galling; PTFE or Grafoil® (800 Series only) packing optional
    • All stems are 316 stainless steel
    • All stem threads are rolled for strength and ease of operation
    • 0.159" bleed port
    • 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)

    *Note: If a packing option is chosen, maximum pressure rating is 6,000 PSI.  Refer to the "Pressure vs. Temperature: Packing Style with Compatible Fluid" .pdf to the right-hand side of this page.

     All NOSHOK valve products conform to the MSS SP-99 instrument valves standards, and valves supplied with packing
       also conform to MSS SP-132 compression packing systems for instrument valves standard.