Page 473 - Softbound_Edition_19_en

Poppet valve
Poppet valve cartridge

PERFORMANCE SPECIFICATIONS
Oil viscosity u = 30 mm /s
2
p = f (Q) Performance limit FG Flow direction
Measured with nominal voltage -10% Execution 1 → 2 2 → 1 2 → 3 3 → 2
p [bar] SDSPM18-FG 3 1 1 2
350 K4239 3 2
300
250
200 1
150
100
50
0
0 2,5 5 7,5 10 12,5 15 17,5 20 Q [l/min]

∆p = f (Q) Pressure drop volume flow characteristics Flow direction
∆p [bar] Execution 1 → 2 2 → 1 2 → 3 3 → 2
30 K4240 1 SDSPM18-AB 4 4 - -
25 SDSPM18-BA 3 3 - -
20 2 SDSPM18-FG 2 2 1 1
15 3
10 4* *∆p 80 bar at 40 l/min
5
0
0 2,5 5 7,5 10 12,5 15 17,5 20 Q [l/min]

Switching times
Typ Flow Switching on Switching off
direction
AB 1 → 2 approx. 40 ms approx. 20 ms
2 → 1 approx. 40 ms approx. 10 ms
SDSPM18 BA 1 → 2 approx. 40 ms approx. 30 ms
2 → 1 approx. 30 ms approx. 30 ms
FG 1 → 2 approx. 40 ms approx. 10 ms
2 → 1 approx. 40 ms approx. 10 ms Note! The switching times depend on the volume flow,
pressure and viscosity. In case of very large volume
2 → 3 approx. 40 ms approx. 40 ms flows, the switching time for closing can get consider-
3 → 2 approx. 40 ms approx. 20 ms ably longer.

HYDRAULIC CONNECTION HYDRAULIC CONNECTION
Cavity drawing according to ISO 7789–18–01–0–98 Cavity drawing according to Wandfluh standard

M18x1.5 M18x1.5

(3)
(2)
(2)
(1)
(1)

(1) (1)

Note! For detailed cavity drawing and cavity tools see data Note! For detailed cavity drawing and cavity tools see data
sheet 2.13-1002 sheet 2.13-1020

www.wandfluh.com Illustrations are not binding Data subject to change 3/4 Edition: 21 51 1.11-2051 E
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