FLOW CONTROLS

NV08-20 Needle Valve

DESCRIPTION

A screw-in, cartridge-style, variable orifi ce, hydraulic fl ow restrictor valve.

OPERATION

The NV08-20 increases its orifi ce value from fully closed to fully open with

counterclockwise adjustment rotation.

FEATURES

• Adjustments cannot be backed out of the valve.

RATINGS

Operating Pressure: 240 bar (3500 psi)

Flow: 42 lpm (11 gpm) nominal at 7 bar (100 psi) differential at full open 3.5 turns

Internal Leakage: 0.25 cc/minute (5 drop/minute) max. at shut-off

Adjustment Torque Required: 0.56 Nm (5 inch-pounds) at 7 bar (100 psi);

5.41 Nm (48 inch-pounds) at 207 bar (3000 psi)

Temperature: -40 to 120°C

Filtration: See page 9.010.1

Fluids: Mineral-based or synthetics with lubricating properties at viscosities of

7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1

PERFORMANCE (Cartridge Only)

5.010.1

6.9/100

5.2/75

3.4/50

1.7/25

15.1

4

30.2

8

45.4

NV08-20__ - __ __ __ - __

Cartridge: Weight: 0.10 kg. (0.23 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-

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