Pressure Switches & Monitoring

VALVE FEATURES

PRODUCT CREDENTIALS

Specifications

Ordering Information

MODEL NUMBER CONFIGURATOR(3-Way 2-Position Valves)

Pressure Switches & Monitoring

Valve Operation

Conditions at Start	Inlet 1 is closed to outlet 2 by both valve elements A and B. Outlet 2 is open to exhaust 3. Pressure signals at both switches SWA and SWB are exhausted. Contacts 1 and 2 of switches SWA and SWB are connected.
Normal Operation	Simultaneously energizing both solenoids actuates both pilots and causes valve elements A and B to shift. Inlet 1 is then connected to outlet 2 via crossflow passages C and D. Exhaust 3 is closed. Sensing pressure signals go to each pressure switch and become equal to inlet pressure. Both switches trip and now contacts 1 and 4 of switches SWA and SWB are connected instead of contacts 1 and 2.
Completion of Normal Cycle	Simultaneously de-energizing both solenoids returns the valve to the “Conditions at Start” described above.
Detecting a Malfunction	A malfunction in the system or the valve itself could cause one valve element to be open and the other closed. Air then flows past the inlet poppet on valve element A, into crossflow passage D, but is substantially blocked by the spool portion of element B. The large size of the open exhaust passage past element B keeps the pressure at the outlet port below 2 % of inlet pressure. Full sensing air pressure from side A goes to switch SWA, and a reduced pressure goes to switch SWB. This full pressure signal causes switch SWA to trip. Switch SWB, with a reduced pressure signal, does not trip. An external monitoring system can detect the malfunction by monitoring the condition of the switches SWA and SWB. The external monitoring system may then react accordingly by shutting down the power to the valve solenoids and any other components deemed necessary to stop the machine.
CAUTION	If the system must be reset, electrical signals to both solenoids must be removed to prevent the machine from immediately recycling and producing a potentially hazardous condition.

Valve Technical Dat

Valve Schematic

Valve Solenoid & Pressure Switch Pinouts
Solenoid	DIN EN 175301-803
Pressure Switch	DIN EN 175301-803	M12

Valve Basic Size 1

Dimensions-Inches(mm)
Valve without Pressure Switches
Valve with Pressure Switches
Base

Valve Basic Size 2

Dimensions-Inches(mm)
Valve without Pressure Switches
Valve with Pressure Switches
Base

Valve Basic Size 4, 8, 12, 30

Dimensions-Inches(mm)
Basic Size 4
Basic Size 8
Basic Size 12
Basic Size 30

Accessories

ELECTRICAL STATUS INDICATION

ENERGY RELEASE VERIFICATION

PREWIRED ELECTRICAL CONNECTORS

ELECTRICAL CONNECTORS

EXHAUST SILENCERS

RESET VALVES FOR DOUBLE VALVES WITH REMOTE RESET

Direct Solenoid Pilot Control – Compact Valves 16 Series for Line Mounting

Direct Solenoid Pilot Control – Miniature Valve W14 Series for Base Mounting

Manual Palm Button Valves 12 Series