File: AM2UP001_E 01/2000/eIV • 3

4

AM.2.UP.A

AM.2.UP.B

AM.2.UP.AB

AM.2.UP... MODULAR PILOT

OPERATED

CHECK VALVES

CETOP 2

Max. operating pressure 250 bar

Minimum opening pressure spring 1 1 bar

Minimum opening pressure spring 5 5 bar

Piloting ratio: 1:4

Max. flow 20 l/min

Hydraulic fluids Mineral oils DIN 51524

Fluid viscosity 10 ÷ 500 mm

2

/s a 50°C

Fluid temperature -20°C ÷ 75°C

Max. contamination level class 10 in accordance

with NAS 1638 with filter ß

25

≥75

Weight 0,5 Kg

AM.2.UP type modular check valves

allow one way free flow by raising a

conical shutter, while in the opposite

direction the fluid can return by means

of a small piston piloted by the pres-

sure in the other line.

They are available on single A or B

lines, and on double A and B lines

(see hydraulic symbols ).

AM Modular valve

2 CETOP 2/NG4

UP Piloted check valve

** Control on lines A / B / AB

* Minimum opening

pressure

1 = 1 bar

5 = 5 bar

** 00 = No variant

V1 = Viton

1 Serial No.

OVERALL DIMENSIONS

PRESSURE DROPS HYDRAULIC SYMBOLS

ORDERING CODE

Support plane

specifications

Curve n. 3 = Piloted side flow

AM.2.UP...

SCREWS AND STUDS CH. IV PAGE 6

∆p (bar)

Q (l/min)

5 bar

1 bar

3