Ross Controls CATEGORY 4 - 3_2 VALVES SERIES DM2 C, E - Manual (Page 10)

DM 2 ® Series C
Control Reliable
Double Valve
with
Dynamic Monitoring & Memory
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New Product
Introduction
Size 4, 8, 12 and 30
• Dynamic Monitoring With Memory: Memory, monitoring, and air flow control functions are integrated into two identical
valve elements. Valves lockout if asynchronous movement of valve elements occurs during actuation or de-actuation,
resulting in a residual outlet pressure of less than 1% of supply.
• An action is required for reset – cannot be reset by removing and re-applying supply pressure. Reset can only be
accomplished by the optional integrated electrical (solenoid) 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 NO & NC contacts to provide status feedback to
the 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® Series C 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: Increase pilot air flow for fast valve response and make it possible to use the same size solenoids
as valve sizes 4 & 8, thereby reducing electrical power requirements for these larger valves.
FEATURES:
Simplified
Schematic
APPLICATIONS:
Category 4 applications - e.g. Air Dump/Release
Sizes 4, 8, 12 and 30
Valve Port Size C
V
Weight
Size Model Number* Inlet Outlet 1 to 2 lb (Kg)
4 DM2CNA42**21 1/2 1/2 3 5.9 (2.6)
8 DM2CNA54**21 3/4 3/4 4.4 8.4 (3.7)
8 DM2CNA55**21 1 1 4.4 8.4 (3.7)
12 DM2CNA66**21 1 1 8.5 15.3 (6.7)
30 DM2CNA88**21 11/2 2 22 34.7 (15.1)
* NPT port threads. For BSPP threads , replace “N” in the model
number with a “D”.
** Insert voltage code:
“A” = 24 volts DC, “B” = 110 volts AC, “C”*** = 220 volts AC.
** 220 volts AC not available in the U.S. (OSHA regulations limit press
control voltage to no more than 120 volts AC.