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Series VNR unidirectional valves
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2018
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Series VNR
unidirectional valves
Ports: M5, G1/8, G1/4, G3/8, G1/2, G3/4, G1
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Operations at low pressures
GENERAL DATA
Valve group
automatic valves
Construction
poppet-type
Materials
brass body
stainless steel spring
NBR seals
Mounting
in any position
Ports
M5, G1/8, G1/4, G3/8, G1/2, G3/4, G1
Operating temperature 0°C ÷ 80°C (with dry air -20°C)
Medium
filtered air, without lubrication.
If lubricated air is used, it is recommended to use ISO VG32 oil. Once applied the lubrication should never be interrupted.
Series VNR unidirectional valves, thanks
to their poppet-type construction, can
operate at low pressures both when
there is a free flow and during retention.
Series VNR unidirectional valves
DIMENSIONS
Mod.
R
L
SW D Flow (Nl/min) Min. operating
pressure (bar)
Max working
pressure (bar)
VNR-205-M5 M5
25
8
9
50
1
10
VNR-210-1/8 G1/8 34
13
15
600
0.2
10
VNR-843-07 G1/4 43
17
20
1400
0.2
10
VNR-238-3/8 G3/8 55
23 34.5
3000
0.02
25
VNR-212-1/2 G1/2 58.5 27 34.5
5800
0.02
25
VNR-234-3/4 G3/4 65
33 41.5
8000
0.06
25
VNR-201-01 G1 74.5 40
48
13000
0.06
25