MODEL
LOKO
Pilot-to-close, spring biased open, unbalanced poppet logic element
SERIES 4 / CAPACITY: 1100 L/min. / CAVITY: T-19AU
(X)CONTROL
X Not Adjustable
(D)MINIMUM PILOT PRESSURE
D 50 psi (3,5 bar)
(N)SEAL MATERIAL
N Buna-N
V Viton
MATERIAL/COATING
Standard Material/Coating
/AP Stainless Steel, Passivated
NOTE: DATA MAY VARY BY CONFIGURATION. SEE CONFIGURATION SECTION.
These unbalanced, pilot-to-close logic valves are 2-way switching elements that are spring biased open. Pressure
at either work port 1 or 2 will tend to keep the valve open while pressure at port 3 will tend to close it. The force
generated at port 3 must be greater than the sum of the forces acting at port 1 and port 2 plus the spring force for
the valve to close. NOTE: The pilot area (port 3) is 1.8 times the area at port 1 and 2.25 times the area at port 2.
TECHNICAL DATA
Cavity T-19AU
Series 4
Capacity 1100 L/min.
Maximum Operating Pressure 350 bar
Maximum Valve Leakage at 110 SUS (24 cSt) 0,7 cc/min.
Pilot Volume Displacement 7,7 cc
Pilot Passage into Valve 2,3 mm
Area Ratio, A3 to A1 1.8:1
Area Ratio, A3 to A2 2.25:1
Valve Hex Size 41,3 mm
Valve Installation Torque 474 - 508 Nm
Seal kit - Cartridge Buna: 990019007
Seal kit - Cartridge Polyurethane: 990019002
Seal kit - Cartridge Viton: 990019006
Model Weight 1.13 kg.
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LOKO
Model Code Example: LOKOXDNCONFIGURATION OPTIONS