Noshok
200002/210002 & 200402/210402 Series 2-Valve Narrow Block & Bleed Manifold Valves
200002/210002 & 200402/210402 Series 2-Valve Narrow 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 left side and the bleed valve is located on top
in a 90° orientation, venting is to the right - 100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance
and reliability - 200002/200402 Series hard seat valves have 10,000 psi pressure
rating @ 200 ºF - 210002/210402 Series soft seat valves have 6,000 psi pressure
rating @ 200 ºF - 210002/210402 Series valves also feature a replaceable Delrin®seat, and
straight through porting for bidirectional, high capacity flow and easy
roddable cleaning - PTCFE 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 or Grafoil® packing optional
- All stems are 316 stainless steel
- Stem and bonnet 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)
SPECIFICATIONS | |
Materials | Zinc-nickel plated steel, electropolished 316 stainless steel |
Connections | 200002/210002 Series: Flange-flange, 1/4" NPT
vent 200402/210402 Series: 1/2" NPT-flange, 1/4" NPT vent 200202/210202 Series: 1/4" NPT-flange, 1/4" NPT vent Left venting optional |
Pressure ratings | Hard Seat: 10,000 psi @ 200 °F Soft Seat: 6,000 psi @ 200 °F |
Orifice size | 0.187" |
Flow coefficient | Hard Seat: CV 0.44 Soft Seat: CV 0.76 |
Stem seal & type | All 316 stainless steel stems with FKM o-ring and & type 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
274.2 kB