Page 40 - Clippard - Pneumatic Modules

MODULAR 4-WAY BLEED PILOT VALVES

R-441 4-Way Valve Single Input 5 S
2 8 O 2 O 1
1
8 2
4
Features: E 2 7 3 E 1
6 4
• Indicator shows valve in shaded 3 7 5
position 1
P
1
• Micro gap construction - snap S P
action and no blow by Dual Input E , E
1 2
5
• Balanced design allows speed 2 8 O 2 O 1
control at exhausts 1
8 2
4
Performance: S 2 7 3 S 1
6 5 4
Flow: 9 scfm @ 100 psig 3 7
1
Pilot Pressure Minimum: 40 psig P 1
Temperature: 32 to 180°F S P
Working Pressure: 0 to 150 psig
Description:
R-441 is a 4-way, spring return, bleed piloted valve for use with simple low force sensors. The vent supply pressure is
independent of the inlet pressure to the valve. This pilot supply passes through a built-in restriction and shifts the valve
compressing the spring. Venting (exhausting) the pressure in the pilot chamber (faster than the restricted supply can recover)
shifts the valve.

R-442 4-Way Valve 5 Single Input S
O O
1 2
2 8 1
8 2
Features: E 7 3 E
6 4 1 2
• Indicator shows valve in shaded 6 5 4
position 3 7
1 P 2 P 1
• Micro gap construction - snap S
action and no blow by Dual Input P
5 E E
1 2
• Balanced design allows speed O O
control at exhausts 2 8 1 2
8 1 2
S 7 3 S
6 4 2 1
Performance: 6 5 4
Flow: 9 scfm @ 100 psig 3 7
1 P 2 P 1
Pilot Pressure Minimum: 20 psig S
P
Temperature: 32 to 180°F
Working Pressure: 0 to 150 psig
Description:
R-442 is a 4-way, double bleed pilot valve. The vent supply pressure is independent of the inlet pressure to the valve. Pilot
supply passes through built-in restrictions and pressurizes both pilots. Venting (exhausting) the pressure in one pilot chamber
(faster than the restricted supply can recover) causes the valve to be shifted by the opposite pilot.

Clippard Instrument Laboratory, Inc. 877-245-6247 www.clippard.com 278