Page 34 - Bürkert

Ordering Chart
QNn-value air Item no. per voltage/frequency [V/Hz]
Port connection Orifice Pressure range
Circuit function P –> A
[inch] [mm] [bar] 024/DC 024/50 230/50
[l/min]
All valves with manual override, brass body, NBR seal and cable plug
C G 1/4 8 1030 Vacuum to 3 047 383 047 787 045 134
3/2-way valve
normally closed G 1/2 12 2800 Vacuum to 3 046 580 047 897 046 180 0344
G 3/4 20 7200 Vacuum to 3 046 833 053 492 046 461

G 1 25 11000 Vacuum to 3 043 691 050 367 055 445

G 1 1/2 40 26000 Vacuum to 3 057 829 – 047 853
D G 1/4 8 1030 Vacuum to 3 046 986 049 336 046 408
3/2-way valve
normally open G 1/2 12 2800 Vacuum to 3 046 246 051 354 046 373

G 3/4 20 7200 Vacuum to 3 046 087 057 636 047 616
G 1 25 11000 Vacuum to 3 047 873 043 479 041 681

Quick exhaust function: Connection R is a orifice size larger than the ports A / B and P. This increases the flow A-R by a factor of 1.5 to 2 to the value in the table.

Envelope Dimensions [mm]

DN A B D H L R
8 46 33 G 1/4” 154.5 65 G 3/8”
12 46 33 G 3/8” 179.5 76 G 3/4”
12 46 33 G 1/2” 179.5 76 G 3/4”
20 62 52 G 3/4” 215.5 90 G 1”
25 82 60 G 1” 237.5 110 G 1 1/4”
40 117 88 G 1 1/2” 274.0 153 G 2”

This dimensional drawing shows a valve in circuit function C with the
port specifications P, R and A/B (manual override via port P).
In circuit function D the manual override is located above the port
A/B (pilot rotated 180° compared to circuit function C).
(Vacuum pump connected at port R, atmospheric pressure
connected at port P.)

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