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Ross Asia Crossflow 35 series Double valve with pressure switch, ports 3/8 to 1-1/2

Made in Japan
Manufacturer : Ross Asia
Model : Crossflow 35 series

Cross Flow TM Double Valves for External Monitoring – with or without Pressure SwitchesProduct Overview

Clutch/Brake Control Function

The Cross Flow TM double valve is designed to provide control of clutch/brake mechanisms on stamping presses, and many other critical
applications such as alternative lockout systems for energy isolation, air cylinder press load-holding systems, as well as other Category -3 and -4 safety circuits.

Pressure Switches & Monitoring

Valves without pressure switches must not be used to control clutch/brake mechanisms on press machinery.
Valves with pressure switches must be used in conjunction with an external monitoring device to assist with OSHA compliance (Ref. 1910.217).

VALVE FEATURES

PRODUCT CREDENTIALS

Specifications

Ordering Information

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

Pressure Switches & Monitoring

Valves without pressure switches must not be used to control clutch/brake mechanisms on press machinery.
Valves with pressure switches must be used in conjunction with an external monitoring device to assist with OSHA compliance (Ref. 1910.217).
The valves on this page do not have a built-in monitor, and so must only be used in conjunction with an external monitoring system. Such monitoring system must be capable of inhibiting the operation of the valve and associated machinery in the event of a failure within the valve.
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 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

Valves with the remote reset option require a small 3/2 reset valve and the installation of a 1/8 inch air line from the reset valve to the reset port of the double valve. ROSS offers 3/2 normally closed valves with either manual or electric control that are suitable for this purpose.

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

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