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Needle Valves 2CN20 - Integrated Hydraulics


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2CN SERIES NEEDLE VALVE
FINE ADJUSTMENT - POSITIVE SHUT OFF
2CN20
APPLICATION
FEATURES
The cartridge needle valves can be set and locked to restrict flow in both directions. A typical use is the speed control of cylinders or other actuators. (For pressure compensated flow control valves see Section 9). The fine adjustment and complete shut-off allow the valves to be used for snubbing pressure gauges and for use as shut-off valves.
All steel construction with hardened and ground adjustment needle. Cartridge construction for versatility in applications. Sealed adjuster for leak-free adjustment.
SPECIFICATIONS
Figures based on: Oil Temp = 40°C Viscosity = 40 cSt
8
8
OPERATION
Rated Flow
20 litres/min (5 US GPM)
Max Pressure
350 bar (5000 psi)
Cartridge Material
External parts zinc plated
Body Material
Standard aluminium (up to 210 bar*) Add suffix '377' for steel option.
Mounting Position
Unrestricted
Cavity Number
A879 (See Section 17)
Torque Cartridge into Cavity
30 Nm (22 lbs ft)
Weight
2CN20 0.12 kg (0.26 lbs) 2CN25 0.40 kg (0.87 lbs)
Seal Kit Number
SK446 (Nitrile) SK446V (Viton)
Recommended Filtration Level
BS5540/4 Class 18/13 (25 micron nominal)
Operating Temp
-20°C to +90°C
Leakage
0.3 millilitres/min nominal (closed)
Nominal Viscosity Range
5 to 500 cSt
Rotation of the adjustment screw varies the valve opening to give a flow path approximately proportional to the turns of the screw.
PRESSURE DROP
FLOW-US GPM
0 2
4
6 8
15
200
12
150
X
x
■ji ■ji
x
9
100
X X
6
50
3
0
0
12 18 24 30
FLOW LITRES/MIN
*For applications above 210 bar please consult our technical department or use the steel body option.
Integrated Hydraulics Ltd
Collins Road, Heathcote Ind. Est., Warwick, CV34 6TF, UK. Tel: +44 (0) 1926 881171 Fax: +44 (0) 1926 315729 Website: www.integratedhydraulics.com
Integrated Hydraulics Inc
7047 Spinach Drive, Mentor, Ohio 44060, USA Tel: (440) 974 3171 Fax: (440) 974 3170 Website: www.integratedhydraulics.com
8-111.C

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