Product category:
Pneumatic Valves and Controls
News Release from: Ross Controls | Subject: DM2 Crossflow Serpar double valves
Edited by the Engineeringtalk Editorial
Team on 05 April 2006
Double valves meet safety requirements
Double valves with dynamic monitoring and memory for press clutch and brake applications combine the dirt tolerant, wear compensating characteristics of poppet technology with double valve features.
Ross Controls has introduced the DM2 Crossflow Serpar double valves with dynamic monitoring and memory for press clutch and brake applications The valves combine the tough, dirt tolerant, wear compensating characteristics of poppet technology with double valve features in response to the changing demands of the mechanical press industry and its associated standards (for example EN 692 ff) and regulations regarding pneumatically controlled clutch and brake applications
This article was originally published on Engineeringtalk on 5 Aug 2003 at 8.00am (UK)
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The consensus standards and best practice require that, in case of a failure within the valve, the clutch and brake mechanisms be quickly exhausted, a monitor takes action to prevent further operation, and a method to alert personnel is incorporated.
These features also make the valve suitable for use in other category three and four safety-related applications.
Memory, monitoring and air-flow control functions are integrated into two identical valve elements.
The valves lock out due to asynchronous movement of valve elements during actuation or de-actuation, resulting in a residual outlet pressure of less than 1% of supply.
Overt action is required for reset, and reset can only be accomplished by applying a remote air signal or by energising the optional integrated electrical solenoid reset.
The valves are base mounted, and available with BSPP or NPT pipe threads.
Inlet and outlet ports on both sides of the bases provide for flexibility in piping.
They are available in four sizes, providing a range of flow capabilities.
Valves are designated by the nominal sizes 4, 8, 12, and 30 with outlet ports up to 5.1cm.
An optional status indicator includes a pressure switch with normally open and normally closed contacts to provide status feedback to the press control system indicating whether the valve is in the lock-out or ready-to-run condition.
Also, all models include a high flow, clog resistant silencer.
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