- 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.
