2/2 directional poppet valve with solenoid actuation; block
installation
Type KSDE...8...L1X/H
Features
– R/T-8A cavity
– Direct operated directional poppet valve with solenoid operation,
both sides sealed
– The closed port is leak-free
– Switching is ensured even after long periods of inactivity
– Wet pin DC solenoids
– The solenoid coil can be rotated
– With protected hand override, optional
Function and configuration
·2/2 Directional Poppet valves
General:
2/2 directional poppet valves are direct operated, pressure
compensated cartridge valves. They are comprised of screw-in
section (1), solenoid (4) as well as closing element (3) and
compression spring (2).
Function:
The initial position of the valve (normally open "P" or normally
closed "N") is determined by the position of the closing element
(3) and the arrangement of the compression spring (2). Due to the
structural design, the 2/2 directional poppet valves are always
pressure compensated in relation to the actuating forces. The main
ports ① and ② can be loaded with an operating pressure of 350/500
bar.
Attention!
Flow is only admissible in the direction of the arrow (see
symbols)!
With version "U" (operating pressure 500 bar), main port ① must be
connected with pump connection P!
With symbol "P", the closing element (3) is pressed onto the seat
by the solenoid (4), with symbol "N" by the compression spring (2).
The flow is blocked in a leak-free form.
The manual override allows for the switching of the valve without
solenoid energization. It is available in concealed version "N9"
(5) or in screwable version "N11" (6).
Specification
Technical data
| Fixing position | Optional |
| Environment temperature range | ℃ | -40 to +110 |
| Weight | Valve | kg | 0.3 |
| Coil | kg | 0.25 |
| Max operation pressure | Version “U” | bar | 50 (at all ports if P ≥ A; for design reasons) |
| Version “R” | 35 (at all ports) |
| Max flow | Version “U” | L/min | 3 (see performance limits ) |
| Version “R” | 5 (see performance limits ) |
| Fluid | Mineral oil suitable for NBR and FKM seal |
| Phosphate ester for FKM seal |
| Fluid temperature range | ℃ | -30 to +80 (NBR seal) |
| -20 to +80 (FKM seal) |
| Viscosity range | mm2/s | 2.8 to 500 |
| Degree of contamination | Maximum permissible degree of fluid contamination:Class 9. NAS 1638
or 20/18/15, ISO4406 |
| Load cycles | Version “R”(350bar) | 10 million |
| Version “U”(500bar) | 5 million |
Electrical data
| Type of voltage | Direct voltage |
| Supply voltage 1) | V | 12 DC; 24 DC |
| Voltage tolerance against ambient temperature | See characteristic curve |
| Input power | W | 22 |
| Duty cycle | % | See characteristic curve |
| Maximum coil temperature 2) | ℃ | 150 |
| Switching time according to ISO 6403(solenoid horizontal) | ON (① → ②) | ms | ≤ 80 |
| OFF (② → ①) | ≤ 80 |
| Maximum switching frequency | Version “R” | l/h | 9000 |
| Version “U” | 3600 |
| Protection class according to VDE 0470-1(DIN EN 60529) DIN 40050-9 | Version “K4” | IP65 with mating connector mounted and locked |
| Version “K40” |
1 ) Other voltages upon request.
2 ) Due to the temperatures occurring at the surfaces of the
solenoid coils, the standards ISO 13732-1 and EN 982 need to be
adhered to!
Unit dimensions (Dimensions in mm)
· 2/2 directing seat bables
① = Main port 1, pump P 3)
② = Main port 2, actuator A 3)
LS =location shoulder
1) Operated
2) Screwed in
3) Attention!
Unambiguous pinout.
P and A must not be exchanged or closed!
1 Plug-in connectors
2 Space required to remove the Plug-in connectors
3 SW24, tightening torque MA = 45+5 Nm
4 Dimension for "K4" mating connector, without circuitry
5 Dimension () for "K4" mating connector, with circuitry
6 Version "K40"
7 Nut, tightening torque MA = 5+1 Nm
8 Coil
9 Concealed manual override "N9", optional
10 Screwable manual override "N11", optional
11 Screwable manual override "N10"
