Page 638 - Softbound_Edition_19_en

Poppet valve

Poppet valve
NG4-Mini
Flange construction Wandfluh standard
◆ pneumatically operated
◆ 2/2-, 3/2- and 3/4-way
◆ normally open and normally closed
◆ Q = 15 l/min
max
◆ p = 350 bar
max

DESCRIPTION APPLICATION
Direct operated 2/2-, 3/2 and 3/4-way poppet valve in flange const- Poppet valves are used where tight closing functions of the valve
ruction. By means of the pneumatic actuation control head, the are essential like leakage-free load holding, clamping or gripping.
poppet valve spool is opened or closed acting against the spring. Miniature values are used where both, reduced dimensions and

Due to the poppet spool construction with pressure compensation weight are important.
on both sides, the flow through the valve is possible in both direc-
tions. The seat spool guide is sealed by means of an O-ring. The
metallically sealing seat closes the valve virtually leak free.
SYMBOL
BK22040b BK22041a BK32040b BK32041a
A A A A

a a b b a a b b a a b b a a b b
P P P T P T
BK3404
A
ab
a a o b b
P T

TYPE CODE
2/2 or 3/2 way execution B K 2 04 - #
3/4 way execution B K 3 4 04 - #
Mounting interface acc. to Wandfluh standard

Pneumatically operated
2 way (connections) 2
3 way (connections) 3

2 switching positions
4 switching positions

Nominal size 4-Mini
Normally closed Pilot head on A-side 1a
Normally open Pilot head on B-side 0b

Sealing material NBR
FKM (Viton) D1

Design index (subject to change)
1.11-6120

www.wandfluh.com Illustrations are not binding Data subject to change 1/3 Edition: 17 20 1.11-6120 E