Noshok
500 Series Standard, Soft Seat Needle Valves
500 Series Standard, Soft Seat Needle Valves
Key Features
- 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
- 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 (certain NPT sizes only)
- 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)
SPECIFICATIONS | |
Materials | Zinc-nickel plated steel, electropolished 316 stainless steel |
Connections | 1/4", 3/8", 1/2", 3/4", 1", 1-1/4" & 1-1/2" NPT Male-female & Female-female configurations |
Pressure ratings | 6,000 psi @ 200 °F |
Orifice size | 1/4" - 1/2" NPT: 0.187" 3/4" - 1-1/2" NPT: 0.438" |
Flow coefficient | 1/4" - 1/2" NPT: CV 0.76 3/4" - 1-1/2" NPT: CV 4.0 |
Steam seal & type | All 316 stainless steel stems with FKM o-ring and PTFE back-up ring below the threads, PTFE packing optional for 1/4", 3/8" & 1/2" NPT only |
Options | Panel mountings, o-ring materials, handles, packings, regulating stem and stem tips |
Catalogs
Catalog Pages
218.6 kB