• Large flow capacity • Low opening pressure, good self-priming property • Used as one-directional and hydraulic one-directional valve • Sandwich type installation • Small size, easy to install
Technical Specs
Size
25
32
40
50
63
80
100
125
160
Max. flow-rate
L/min
100
160
250
400
630
1000
1600
2500
4000
Release ratio
4.3
3.6
3.9
4.2
4.2
4.5
4.3
4.3
4.3
Control capacity
cm3
0.45
1
21
4
7
12.2
25.4
59.3
113
Weight
Kg
1.1
1.2
1.7
2.4
3.4
5.2
11.7
19.6
50
Installation position
Optional
Flow direction
From A to B free, from B to A through opening
Operating pressure
bar
to 350
Control pressure
bar
Max. 100
Viscosity range
mm2/s
10 to 800
Fluid temperature range
℃
-30 to +80 (NBR seal)
-20 to +80(FKM seal)
Fluid
Mineral oil(HL HLP)-suitable for NBR and FKM seal
Phosphate ester for FKM seal
Degree of contamination
Maximum permissible degree of fluid contamination:
Class 9. NAS 1638 or 20/18/15, ISO4406