Noshok
2603/2703 & 2604/2704 Series 2-Valve Block & Bleed Manifold Valves
2603/2703 & 2604/2704 Series 2-Valve Block & Bleed Manifold Valves
Key Features
- 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 static pressure transmitters, switches
or gauges to be removed without disturbing the permanent piping installation - Block valve is located on the right and the bleed valve is located on top in
a 90° orientation, venting is to the left - 100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance
and reliability - 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) - 2603/2604 Series hard seat valves have 10,000 psi pressure rating @ 200 °F
- 2703/2704 Series soft tip valves have 6,000 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 caps for bonnets and stems (non-packing)
- 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 |
Connections | 2603/2703 Series 3/8" NPT 2604/2704 Series 1/2" NPT, right venting optional |
Pressure ratings | Hard Seat: 10,000 psi @ 200 °F Soft Seat: 6,000 psi @ 200 °F |
Orifice size | 0.156" |
Flow coefficient | CV 0.44 |
Stem seal & type | All 316 stainless steel stems with FKM o-ring and PTFE back-up ring below the threads, PTFE or Grafoil® packing optional |
Options | Panel mountings, o-ring materials, handles, packings, regulating stem and stem tips |
Catalogs
Catalog Pages
224.8 kB