Created on 02/24/2016
c
2016 Sun Hydraulics Corporation See www.sunhydraulics.com for detailed product information 1 of 2
MODEL
FTEC
4-way, 3-position, meter in proportional directional valve
SERIES 3 / CAPACITY: 45 L/min. / CAVITY: T-53A
Y-Spool
W-Spool
This valve is a 4-way, 3 position, proportional directional valve. Work ports 2 and 4 are drained to 5 in the center
position and port 3 is closed. Pilot pressure at port 1 opposes the spring and creates a variable metering orifice
between ports 3 and 4 that is proportional to the pressure at 1. Piloting 6 opens 3 to 2. The force balance of the
flow forces, spring and pilot pressure results in a degree of partial self compensation as the load pressure changes.
Pressure at ports 1 and 6 directly oppose each other.
TECHNICAL DATA
Minimum Pilot Pressure Required to Shift Valve 5,5 bar
Pilot Pressure Required for Full Shift at Rated Flow 24 bar
Maximum Operating Pressure 350 bar
Maximum Valve Leakage at 110 SUS (24 cSt) 41 cc/min.@70 bar
Pilot Volume Displacement 1,8 cc
Hysteresis ± 2 %
Seal kit - Cartridge Buna: 990-053-007
Seal kit - Cartridge Viton: 990-053-006
(X)CONTROL
X Not Adjustable
(Y)SPOOL CONFIGURATION
Y A and B to T Center
W A and B Bleed to T Center
(N)SEAL MATERIAL
N Buna-N
V Viton
MATERIAL/COATING
Standard Material/Coating
/AP Stainless Steel, Passivated
snhy.com/FTEC
TECHNICAL FEATURES
Pilot ports 1 and 6 will accept 5000 psi (350 bar), however, pressures over 500 psi (35 bar) do not increase flow since at this point the spool will be fully shifted.
These valves may be pressure compensated by an external, modulating, logic element. Use LR_C-XHN for a bypass circuit or LP_C-XHN for a restrictive circuit.
The valve provides a degree of self-compensation and may be used as a flow control. To increase the accuracy of flow control, an external, modulating, logic
element can be used to maintain a constant flow over a wider range of flows and pressures. See performance curves for additional information.
Pressure at ports 1 and 6 directly oppose each other.
Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge
machining variations.
PERFORMANCE CURVES
Model Code Example: FTECXYNCONFIGURATION OPTIONS
Created on 02/24/2016
c
2016 Sun Hydraulics Corporation See www.sunhydraulics.com for detailed product information 2 of 2
