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

NV10-20

NEEDLE VALVE

Overview

Description

A screw-in, cartridge style, variable orifice, hydraulic flow restrictor valve.

Operation

The NV10-20 valve increases its orifice value from fully closed to fully open with counter-clockwise 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.
  • Industry-common cavity.
Pressure Ratings
Pressure rating:
  • 241 bar (3500 psi)
Proof pressure:
  • 345 bar (5000 psi)
Burst pressure:
  • 896 bar (13000 psi)
Flow Ratings
Flow rating:
  • See pressure drop vs. Flow chart
Maximum internal leakage:
  • 0.05 ml/min (1 drops/min) 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 fluorocarbon seals
  • -54 to 107 °C (-65 to 225 °F) With polyurethane seals
  • -54 to 107 °C (-65 to 225 °F) With urethane seals
Storage temperature:
  • -40 to 70 °C (-40 to 160 °F)
Ambient temperature:
  • -40 to 70 °C (-40 to 160 °F)
Other Ratings
Corrosion protection:
  • 960 hr salt spray per ASTM B117 (model number: GNV10-20x)
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 iso4406
Adjustment torque:
  • 0.56 N-m (5 in-lb) At 7 bar (100 psi)
  • 5.41 N-m (48 in-lb) At 207 bar (3000 psi)
Unit weight:
  • 0.14 kg (0.30 lb) Option A
Internal wetted surface area:
  • 91 cm² (14.1 in²)
NV10-20_Flow-Pressure(2022-02-24) NV10-20_Flow-Turns(2022-02-24)
NV10-20_Dim(2022-02-24)
Cavity:
Cartridge installation torque:
  • 34 to 37 N-m (25 to 27 ft-lb)
Maximum allowable torque:
  • 67.8 N-m (50 ft-lb)
Orientation restriction:
  • None
Seal kit:
  • SK10-2X-M X = seal option
NV10-20_Order(2022-02-24)

Model Options

NV10-20F-H-J
F Adjustment Option
CODE
DESCRIPTION
A
1/4" Hex Allen Head
B
1-1/2" Diameter Aluminum Knob with Aluminum Lock Knob
C
1/4" Hex Allen Head with Cover Cap
D
1-1/2" Diameter Aluminum Knob with Lock Nut
E
1-1/2" Diameter Aluminum Knob Only
L
1/4" Hex Allen Head with Cover Cap and Lockwire Holes
H Line Body
CODE
DESCRIPTION
0
No Body
6T
Aluminum SAE 6
8T
Aluminum SAE 8
6TD
Ductile Iron SAE 6
8TD
Ductile Iron SAE 8
2B
Aluminum BSPP 1/4" (2)
3B
Aluminum BSPP 3/8" (3)
4B
Aluminum BSPP 1/2" (4)
4BD
Ductile Iron BSPP 1/2" (4)
J Seal
CODE
DESCRIPTION
N
Buna-N
V
Fluorocarbon
P
Polyurethane
U
PPDI Urethane