Noshok
700 Series Block & Bleed, Soft Seat Needle Valves
700 Series Block & Bleed, Soft Seat Needle Valves
Key Features
- 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
SPECIFICATIONS | |
Materials | Zinc-nickel plated steel, electropolished 316 stainless steel |
Connections | 1/4" & 1/2" NPT Male-female & Female-female configurations |
Pressure ratings | 6,000 psi @ 200 °F |
Orifice size | 0.187" |
Flow coefficient | CV 0.76 |
Steam seal & type | All 316 stainless steel stems with FKM o-ring and PTFE back-up ring below the threads, PTFE packing optional |
Options | Panel mountings, o-ring materials, handles, packings, regulating stem and stem tips |
Catalogs
Catalog Pages
206.2 kB