NAV2000-N02-3DZ SMC Corporation, NAV2000-N02-3DZ Datasheet - Page 3

• Manufacturer Part Number: NAV2000-N02-3DZ
• Description: Valve; 1/4 in.; NPT; 1/4; 1 MPa; 1.5 MPa; 0 to degC; (N)AV 2000 Series
• Manufacturer: SMC Corporation

Specifications of NAV2000-N02-3DZ

• Body Size: 1⁄4
• Brand/series: (N)AV 2000 Series
• Dimensions: 66 mm L x 40 mm W x 125.5 H
• Pressure, Operating: 1 MPa
• Proof Pressure: 1.5 MPa
• Size, Port: 1⁄4
• Temperature, Ambient: 0 to +60 °C
• Thread Type: NPT
• Operating Pressure Range: 27 to 145 PSI
• Allowable Voltage Fluctuation: –15% to +10% of Rated Voltage
• Ambient And Fluid Temperature: 32°-140°F

3
AV2000/3000/4000/5000
Working Principle
condition
Working
Pilot valve
OFF
ON
1 ( P )
1/2 P
1/2 P
conditions
1/2 P
Pressure
approx. P
—
P
P =
P
> P
≤ P
A
A
A
When pilot valve
ergization or manual override, the pilot air
pushes piston A
downward and opens main valve
R port closes simultaneously. The air from
P port moves to needle valve
flow is adjusted, and flows to A port. The
meter-in control of needle valve
moves the cylinder from
When 1/2 P
es
creases rapidly as shown from
becomes the same pressure as P
Since piston B
cylinder's speed will be controlled by the usual meter-out control.
When pilot valve
pressure difference generated at this time opens check valve
pressure on the A port side is quickly exhausted from R port.
3 ( R )
ON
B
upward and opens R port while shutting off the air supply from P port. The
, piston B
OFF
Working description
P
≤ P
A
B
holds the fully open condition, during normal operation the
B
fully opens and P
after the cylinder reach-
and main valve
is turned ON by en-
is turned OFF, spring
A
to
B
C
.
, where its
2 ( A )
to
P.
A
slowly
D
while
in-
and
Pressure time chart (meter-out control) example
Initial operation return stroke
pushes piston A
A
P
P
P
R (atmospheric pressure)
P
Time
A
and main valve
and the residual
C
B
D
B-B
Cylinder drive circuit (meter-out control) example
1(P)
1(P)
1(P)
P
P
P
P
P
P
3(R)
3(R)
3(R)
2
1
2
1
2
1
2(A)
2(A)
2(A)
P
P
P
A
A
A