CK-21A-X-Y-Z

(Vented Pilot-to-Open, Check Valve)

the pilot area to the vented spring chamber

TECHNICAL DATA

OPERATION

X

OPTION

Max. pressure: 350 bar

Rated flow: 60 l/min

Cavity-Tooling: 21A-4

Installation torque: 40-50 Nm

Weight: 0.18 kg

CHECK VALVES

Z

4C Pilot Ratio 3:1

Non-adjustableN

Rev.151228

B.135.201

Ordering Code:

UNIT:mm

0.3 bar

03

Cracking pressure

Y

SPRINGS

Flow-Q(l/min)

Pressure Differential vs. Flow

Y=50

P=bar

0

20

40

60

5

10

15

20

80

25

Y=20

20

70

50

7.0 bar

5.0 bar

2.0 bar

1.0 b

ar

10

L

Y=03

Maximum Leakage (0.07 cc/min.)

every 4000 cycles.

3.5 bar

35

Approximately 0.07 cc of fluid will pass from

Leakproof hex.

socket screw.

2

3

1

4

Locating

Shoulder

Control Option:

Maximum extension

from locating shoulder.

(L Control shown)

4Vent

Load 1

M20x1.5

Valve 2

3Pilot

22.2 Hex.

(7/8 inch)

35.1

53.3

63.5