Flow Control ValvesNV10-21 — Needle Valve with Positive Shut-Off |
Selection guide - similar valves. PDF file of this page. STP file for NV10-21. Request a quote. |
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DESCRIPTION A screw-in, cartridge-style, variable orifice, hydraulic flow restrictor valve. It is intended for applications requiring fine adjustment over multiple turns. OPERATION The NV10-21 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. FEATURES Adjustments cannot be backed out of the valve. Hardened parts for long life. Fine/Low-effort adjustment. Linear adjustment. Positive shut-off. Industry-common cavity. RATINGS Operating Pressure: 241 bar (3500 psi) Flow: 57 lpm (15 gpm) max. nominal at 11 bar (160 psi) at full open 9 turns Internal Leakage: 0.05 cc/minute (1 drop/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: VC10-2; See page 9.110.1_2w Cavity Tool: CT10-2xx; See page 8.600.1 Seal Kit: SK10-2x-M; See page 8.650.1 |
PERFORMANCE:![]() |
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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. See page 8.010.1_2w. |
ORDERING CHART:![]() |
Selection guide - similar valves. |
PDF file of this page. | STP file for NV10-21 | Request a quote. |