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Flow Control Valves
NV08-21 — Needle Valve with Positive Shut-Off
Selection guide - similar valves.|
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STP file for NV08-21.
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A screw-in, cartridge-style, variable orifice, hydraulic flow restrictor valve.
It is intended for applications requiring fine adjustment over multiple turns.
The NV08-21 increases its orifice value from fully-closed to fully-open with
counterclockwise adjustment rotation. Effective adjustment is linear to eight turns.
Note: This is intended as a low-effort adjustment suitable for operation through linkage.
It may be unsuitable in environments where vibration is present.
Adjustments cannot be backed out of the valve.
Hardened parts for long life.
Compact, industry-common cavity.
Operating Pressure: 241 bar (3500 psi)
Flow: 53 lpm (14 gpm) max.
Internal Leakage: 0.25 cc/minute (5 drops/minute) max. at shut-off
Adjustment Torque Required: 0.34 Nm (3 inch-pounds) at 7 bar (100 psi);
0.68 Nm (6 inch-pounds) at 207 bar (3000 psi)
Temperature: -40° to 100°C (-40° to 212°F) with Buna seals;
-26° to 204°C (-15° to 400°F) with Fluorocarbon seals
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
Installation: No restrictions; See page 9.020.1
Cavity: VC08-2; See page 9.108.1_2w
Cavity Tool: CT08-2xx; See page 8.600.1
Seal Kit: SK08-2x-M; See page 8.650.1
Cartridge: Weight: 0.14 kg. (0.30 lbs.); Steel with hardened work surfaces. Zinc-plated exposed surfaces; Buna N O-rings and polyester elastomer back-ups standard. Plastic knob with metal insert.
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.
See page 8.008.1_2w.
|Selection guide - similar valves.
||PDF file of this page.||STP file for NV08-21||Request a quote.|