Noshok
800/850 Series Bleed, Hard Seat & Soft Tip Needle Valves
800/850 Series Bleed, Hard Seat & Soft Tip Needle Valves
Key Features
- 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)
SPECIFICATIONS | |
Materials | Zinc-nickel plated steel, electropolished 316 stainless steel, 360 brass |
Connections | 1/4" & 1/2" NPT |
Hard seat pressure ratings | Brass: 6,000 psi @ 200 °F Steel: 10,000 psi @ 200 °F Stainless Steel: 10,000 psi @ 200 °F |
Soft tip pressure ratings | Brass: 3,000 psi @ 200 °F Steel: 6,000 psi @ 200 °F Stainless Steel: 6,000 psi @ 200 °F |
Bleed port | 0.159" |
Steam seal & type | All 316 stainless steel stems with FKM o-ring and PTFE back-up ring below the threads, PTFE or Grafoil® (800 Series only) packing optional |
Options | Panel mountings, o-ring materials, handles, packings, regulating stem and stem tips |
Catalogs
Catalog Pages
209.2 kB