10-32 Inlet Thread Needle Valve

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Specifications

Material Construction 316 Stainless, Brass, 303 Stainless
Seal Material Options Black EPDM, Viton®, Buna-N, Silicone, EPDM
Working Pressure Range 500 psig
Effective Orifice Standard Needle: 0” to 0.032” (0-0.8mm)
Weight 10g in brass and 303 stainless
Port Size / Type 10-32 external threaded inlet port
Product Family Valves
Availability Usually Ships Within 4-8 Business Days
Configurable Options 9

Ordering Options

Part number format: NV[Valve Configuration][Needle Type]-[Outlet Port(s)]-[Adjustment Style on Cap][Mounting Style]-[Body Material][Seal Material][Cleaning Options][Lubrication Options]. Each bracketed segment is replaced by the code of the option chosen below; an option with no code is the standard choice and adds nothing.

Option Code Choice
Valve Configuration L Elbow Style
T Tee Style
C Cartridge Style
Needle Type None Standard Needle
H Higher Resolution Needle
F High Flow Stud/Body & Needle
Outlet Port(s) 10 Female 10-32 Thread (Default for NVC)
1E Male 10-32 Thread
12 1/16" ID Barb
16 5/64" (2mm) ID Barb
11 3/32" ID Barb
13 1/8" ID Barb
81 0.170"-3/16" ID Long Barb
82 0.170"-3/16" ID Short Barb
8S 1/8" OD Symmetrical Brass Compression
8A 1/8" OD Asymmetrical Brass or Stainless Compression
Adjustment Style on Cap 1 Slotted screw - screwdriver adjustment
2 Knurled Knob with 3/16" Hex Lock Nut
3 Knurled Knob with 3/4" dia. Knurled lock disc
4 Slotted Screw with 3/4" dia. Knurled lock disc
Mounting Style None No Special Mount
P 10-32 Panel Mount Thread
Body Material None Brass
N ENP Brass
3 303 Stainless Steel
6 316 Stainless Steel
Seal Material
About this option 		None Buna-N
E EPDM
EB Black EPDM
S Silicone
V Viton®
Cleaning Options
About this option 		None Standard Cleaning
I Instrument Grade Cleaning
Lubrication Options
About this option 		None Standard Lubrication
X No Lubrication
K Krytox 240AZ Lubrication

Overview

Description: The needle valve is an adjustable orifice, which can be used to control flow rates, mini-cylinders, nozzles, timing circuits, filling heads, bleed vents, and in many other applications. The adjusted flow remains stable even during temperature fluctuations as the needle and valve seat are both manufactured from stainless steel.

Working Pressure Range: The NV is rated for a maximum inlet pressure of 500 psig. The metal to metal seal provides positive shut-off down to 25 in Hg.

Effective Orifice:

  • Standard Needle: 0” to 0.032” (0-0.8mm). About 0-1 SCFM air flow at 50psig.
  • High Resolution Needle: 0″ to 0.032″ (0-0.8mm).  About 0-1 SCFM air flow at 50 psig.  This configuration is especially well suited for control of low flow rates.
  • High Flow Needle: 0” – 0.059” (0-1.5mm). About 0-3 SCFM air flow at 50psig.

Cv Value Graph

Adjustment: All versions come equipped with a 2-56 threaded adjustment screw.

  • About 2.25 revolutions of the adjustment screw from fully opened to fully closed with standard needle specified.
  • About 8.25 revolutions of the adjustment screw from fully opened to fully closed with high resolution needle specified.
  • About 3.25 revolutions of the adjustment screw from fully opened to fully closed with high flow needle specified.

Approximate Weight: 10g in brass and 303 stainless. Weight will vary slightly, depending on configuration.

Porting: 10-32 external threaded inlet port. Many outlet configurations available. The valve body (elbow or tee) swivels 360 degrees to facilitate installation and orientation.

NVC Cartridge Porting