Ross Controls 3_2 VALVES SERIES DM2 D - Manual (Page 4)

Valve Sizes: DM 2® Series D double valves are available in 5 sizes, providing a
broad range of flow capabilities to meet your needs. For convenience, valves
are designated by the nominal sizes 2, 4, 8, 12, and 30 with outlet ports ranging
from 1/4” to 2”.
Simplified Schematic
Size 2, 4, 8, 12 and 30
• Dynamic Monitoring With Complete Memory: Memory, monitoring, and air
flow control functions are simply integrated into two identical valve elements.
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 – cannot be reset by removing
and re-applying supply pressure. Reset can only be accomplished by remote
air signal, optional electrical solenoid reset signal, or optional manual reset.
• Basic 3/2 Normally Closed Valve Function: Dirt tolerant, wear compensating
poppet design for quick response and high flow capacity. Teflon back-up rings on
pistons to enhance valve endurance – operates with or without inline lubrication.
• Status Indicator (Optional): Includes a pressure switch with both normally
open and normally closed contacts to provide status feedback to the press
control system indicating whether the valve is in the lockout or ready-to-run
condition. The Status Indicator can be ordered installed or purchased separately
and added to any DM
2® base.
• Silencers: All models include high flow, clog resistant silencers.
• Mounting: Base mounted – with BSPP or NPT pipe threads. Inlet and outlet
ports on both sides provide for flexible piping (plugs for unused ports included).
Captive valve-to-base mounting screws.
Size 12 and 30
• Intermediate Pilots: Increases pilot air flow for fast valve response, making it
possible to use the same size solenoids as valve sizes 2, 4 & 8, thereby reducing
electrical power requirements for these larger valves.
Size 8
Size 30
Double Valves with Total Dynamic
Monitoring & Complete Memory DM 2® Series D
Self Monitored - Clutch/Brake Control
Size 2
For Size 2 Certifications
Approval Pending
Size 12
Size 4
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