Valves - Flow Controls - Non-compensated - Needle Valve - Fine Adjustment

NV08-23

NEEDLE VALVE FINE METERING ADJUSTMENT

Overview

Description

The NV08-23X is a screw in, cartridge style, variable orifice, fine adjustment flow restrictor valve

Operation

The valve increases its orifice size from fully closed to fully open with counterclockwise adjustment rotation

Features

  • Adjustments cannot be backed out of the valve.
  • Desired settings may be locked down.
  • Hardened parts for long life.
  • Aluminum knob option.
  • Positive shut-off.
  • Linear adjustment.
  • Compact size.
Pressure Ratings
Pressure rating:
  • 240 bar (3500 psi)
Flow Ratings
Flow rating:
  • 38 lpm (10 gpm) At fully open 165 bar (2400 psi)
Maximum internal leakage:
  • 5 drops/min Max at shut off
Temperature Ratings
Operating fluid temperature:
  • -40 to 100 °C (-40 to 212 °F) With buna N seals
  • -26 to 204 °C (-15 to 400 °F) With viton seals
  • -54 to 107 °C (-65 to 225 °F) With polyurethane seals
Storage temperature:
  • -40 to 70 °C (-40 to 160 °F)
Ambient temperature:
  • -40 to 70 °C (-40 to 160 °F)
Fluids:
  • Mineral based or synthetic hydraulic fluid with lubricating properties
Fluid viscosity range:
  • 7.4 to 420 cSt
Maximum operating contamination level:
  • 18/16/13 per ISO 4406
Unit weight:
  • 0.11 kg (25 lb) (option A)
Internal wetted surface area:
  • 55 cm² (8.4 in²)
NV08-23_Flow-Pressure
NV08-23_Dim

Materials

Cartridge: Weight: 0.11 kg. (0.25 lbs.); Steel with hardened work surfaces. Zinc-plated exposed surfaces; Buna N O-rings and polyester elastomer back-ups standard. Anodized aluminum knobs.

Standard Ported Body: Weight: 0.16 kg. (0.35 lbs.); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi); Ductile iron bodies available; dimensions may differ.

Cavity:
Cartridge installation torque:
  • 24.5 to 27.2 N-m (18 to 20 ft-lb)
Orientation restriction:
  • None
Seal kit:
  • SK08-2X-M (x= seal option)
NV08-23_Order
POSITION
CODE
DESCRIPTION
NV08-23F-H-J
F
Adjustment Option
F
A
1/4" Hex Allen Head
F
B
1-1/2" Diameter Aluminum Knob with Aluminum Lock Knob
F
C
1/4" Hex Allen Head with Cover Cap
F
D
1-1/2" Diameter Aluminum Knob with Lock Nut
F
E
1-1/2" Diameter Aluminum Knob Only
F
L
1/4" Hex Allen Head with Cover Cap and Lockwire Holes
H
Line Body
H
0
No Body
H
4T
Aluminum SAE 4
H
6T
Aluminum SAE 6
H
8T
Aluminum SAE 8
H
6TD
Ductile Iron SAE 6
H
8TD
Ductile Iron SAE 8
H
2B
Aluminum BSPP 1/4" (2)
H
3B
Aluminum BSPP 3/8" (3)
H
3BD
Ductile Iron BSPP 3/8" (3)
J
Seal
J
N
Buna-N
J
V
Fluorocarbon
J
P
Polyurethane
J
U
PPDI Urethane