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

NV10-22

NEEDLE VALVE

Overview

Description

NV10-22 is a screw-in, cartridge style, variable orifice, hydraulic flow restrictor valve

Operation

The 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.
  • Positive shut-off.
  • Linear adjustment.
  • Industry-common cavity.

Ratings

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) 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 fluorocarbon 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: gnv10-22x)

Operating Parameters

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

Properties

Unit weight:
  • 0.12 kg (0.27 lb) Option A
Internal wetted surface area:
  • 76.1 cm² (11.8 in²)

Performance

NV10-22_Flow-Pressure

Dimensions

NV10-22_Dim

Materials

Materials

Cartridge: Weight: 0.15 kg. (0.33 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.

Installation Specifications

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

Accessories

Seal kit:
  • SK10-2X-M
  • N, V = seal option
  • SK10-2U-O

Order Code

POSITION
CODE
DESCRIPTION
NV10-22F-H-J
F
Adjustment Option
F
A
3/16" Hex Allen Head
F
C
3/16" Hex Allen Head with Cover Cap
H
Line Body
H
0
No Body
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
4B
Aluminum BSPP 1/2" (4)
H
4BD
Ductile Iron BSPP 1/2" (4)
J
Seal
J
N
Buna-N
J
V
Fluorocarbon
J
P
Polyurethane
J
U
PPDI Urethane
NV10-22_Order