Accessory Valves
Sequence Valves
DON’T
Sequence Valve Valve is 100% stainless steel construction and resists the corrosion which can cause other styles to "misfire." Direct acting poppet style, adjustable cartridge type construction. The cartridge may be installed directly into your manifold. Two-port design eliminates need for third fluid line to drain bypass flow (internal leakage) back to system reservoir. True sequence design allows full system pressure downstream of valve after opening. n Recommended Filtration: 25 Micron (NOM) / 40 Micron (ABS) (minimum). Operation: The VektorFlo ® sequence valve operates as a pressure sensitive, normally closed element in a clamping system. When fluid first enters the system at low pressure, the valve is closed, blocking the flow of fluid to devices downstream. After devices upstream of the valve have moved into position and pressure begins to increase, the increasing pressure overcomes the spring force holding the valve closed, forcing the poppet off its seat allowing fluid flow through the valve. After downstream devices have positioned and clamped, and pressure has increased to equal upstream pressure, the entire system pressure rises to the maximum level setting on the hydraulic power supply. When unclamping, as pressure falls, force from the adjustment spring pushes the poppet back onto its seat. Fluid trapped in the downstream circuit flows back through the check valve to return to the power unit reservoir.
DO
Sequence Valve Model No. Set Range A B Max. Flow 47-0440-02 52 to 350 bar 105 44.2 5.7 l/min 47-0440-03 20 to 62 bar 120.3 60.0 11.4 l/min Maximum inlet pressure for SEQ valves is 350 bar. Excess flow voids warranty. Recommended filtration: 25 Micron (Nom)/40 Micron (ABS) (min.) NOTE: When using multiple sequence valves. For pressure set range 20 to 62 bar a 7 bar spread between pressures is recommended. For pressure set range 52 to 350 bar a 35 bar spread between pressures is recommended.
Filter Plate For above Valves Model No. 47-0842-03
Order a Filter Plate to protect valve from debris. (More details on M-4)
For proper sealing, the mating surface must be flat within 0.08 mm with a maximum surface roughness of 1.6 µm R a
M-9
31.8
Lock Nut Adjustment Screw
24 Hex
G1/4 Outlet Port
B
2X
6.8 Thru
M3 Outlet Port*
A
2X 32.5
5
37.6
3X 13.2
50.8
M3 Inlet Port*
2X 14.3
15.9
G1/4 Inlet Port
33.3
31.8
27.8
30.6
63.5
*M3 Ports are counterbored for o-rings that are used in manifold mounting applications. 2.29/ 3.30 feed holes
G1/4 Inlet Port
ILMV704400 REV J
© Vektek December 2021
Inside US 1-800-992-0236
www.vektek.com
Made with FlippingBook - Online catalogs