DANV08-21 Needle Valve

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 DANV08-21 increases its orifi ce value from fully closed to fully open with adjustment rotation in the counterclockwise direction. 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.
● Industry common cavity.
● Fine/low effort adjustment.
● Positive shut-off..
● Linear adjustment.

RATING

Operating Pressure:240 bar （3500 psi）

Flow:See Performance Chart
Internal Leakage:0.25 cc/minute (5 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℃～ 120℃
Fluids:Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 ssu)

Cavity：