STANDARD SPECIFICATIONS
Valve Body Service Kits.
These kits contain all parts needed for complete reconditioning
of a valve body. Included are poppets, spindles, gaskets, seals, and instructions for use.
Status Indicator Assembly Service Kit.
This kit includes all parts needed for complete
reconditioning of the status indicator assembly. Pressure switch and connector sold
separately.
Pilot Booster Service Kits.
Available for sizes 12 and 30, these kits contain all parts
needed for complete reconditioning of a pilot booster. Included are poppets,
gaskets, seals, and instructions for use.
Replacement Pressure Switch.
This kit includes a replacement pressure
switch and electrical connector for the status indicator assembly.
Solenoid Coils.
Order replacement by part number provided at the right.
For other voltages, consult ROSS.
Complete Solenoid Pilot Assemblies.
These assemblies consist of new
pilot valve mechanisms and a new solenoid coil, ready to bolt in position on
the valve. For other voltages, consult ROSS.
VALVE SERVICE
www.rosscontrols.com 3
ROSS would be happy to service this valve for you at its factory repair center.
If you purchased your valve from ROSS please contact ROSS customer service,
if you purchased your valve thru an authorized ROSS distributor please contact
the distributor for return instructions. However, if you choose to service this valve
yourself, it is strongly recommended that you visit our website at www.rosscontrols.
com for available downloadable technical documentation.
When servicing the valve yourself, be sure to turn off electrical power to the valve, shut
off the air supply, exhaust the air in the system, and lock-out all power sources before
beginning any disassembly operation. Listed below are kits for servicing DM
2®
Series
D double valves, as well as replacement solenoid information.
CAUTION:
Before operating the DM
2®
Series
D double valve, be sure to complete the test
procedure (TEST), on page 1, upon installation and after any maintenance is performed
on the valve. Failure to do so could result in personal injury or equipment damage.
For additional wiring kit accessories, please see product web page or product literature at www.rosscontrols.com.
Electrical
Connectors
Electrical
Connector
Form
Electrical Connector Type
Cord Length
meter (feet)
Cord
Diameter
Electrical Connector Model Number
Without
Light
Lighted Connector
24 Volts DC
120 Volts AC
EN 175301-803
Form A
Prewired Connector (18 gauge)
2 (61/2)
6-mm
721K77
720K77-W
720K77-Z
10-mm
371K77
383K77-W
383K77-Z
Connector for threaded conduit
(1/2 inch electrical conduit fittings)
–
–
723K77
724K77-W
724K77-Z
Connector Only
–
–
937K87
936K87-W
936K87-Z
CAUTIONS: Do not use electrical connectors with surge suppressors, as this may increase valve response time when de-actuating the solenoids.
IMPORTANT NOTE:
Please read carefully and thoroughly all the
CAUTIONS
and
WARNINGS
on page 4.
Basic
Size
Valve Body
Service
Kit Number
Status Indicator
Assembly Service
Kit Number
Pilot Booster
Service
Kit Number
Replacement
Pressure Switch
Kit Number
2
2101K77
2151H77
–
1104A30
4
2102K77
8
2103K77
12
2104K77
2151H77
2106K77
30
2105K77
Complete Solenoid Pilot Assemblies
Basic
Size
Solenoid
Coil
Type
Model Number
Voltage
24 volts DC 110 or 120 volts AC
2
Pilot
1520C7916
1520C79105
4
Pilot
1403H7916
1403H79105
8
Pilot
1404H7916
1404H79105
12 & 30
Pilot
1526C7916
1526C79105
All
Sizes
Reset
1524C7916
1524C79105
Replacement Solenoid Coils
Basic Size
Solenoid
Coil
Type
Model Number
Voltage
24 volts DC 110 or 120 volts AC
2, 4, 12, 30
Pilot
411B3316
411B33105
8
Pilot
360K3316
360K33105
All Sizes
Reset
411B3316
411B33105
Construction Design
Dual poppet
Mounting
Type:
Base
Orientation:
Preferably horizontally (valve on top of base) or vertically
(with pilot solenoids on top)
Solenoids
According to VDE 0580. Two solenoids, rated for continuous duty
Voltage
Basic Size 2, 4, 12, 30:
24 volts DC; 110 volts AC, 50 Hz; 120 volts AC,
50/60 Hz
Basic Size 8:
24 volts DC; 110 volts AC, 50/60 Hz
Power Consumption
(each solenoid)
Basic Size 2, 4, 12, 30:
Primary and reset solenoids:
5.8 watts nominal on AC and DC; 6.5 watts
maximum on AC and DC
Basic Size 8:
Primary solenoid:
15 watts on DC; 36 VA inrush and 24.6 VA holding on AC
Reset solenoid:
6.0 watts on DC; 15.8 VA inrush and 10.4 VA holding on AC
Enclosure Rating
DIN 40050, IP65, IEC 60529
Electrical Connection
Connector socket according to EN 175301-803 Form A
Temperature
Ambient: 15° to 120°F (-10° to 50°C)
Media: 40° to 175°F (4° to 80°C)
Flow Media
Filtered, lubricated or unlubricated (mineral oils according to DIN 51519,
viscosity classes 32-46)
Operating Pressure
Basic Size 2:
45 to 150 psig (3.1 to 10.3 bar)
Basic Size 4, 8, 12, 30:
30 to 120 psig (2.1 to 8.3 bar)
Reset Pressure
For remote air reset option – must be equal to inlet pressure
Manual Pressure
Encapsulated, push button actuation
Pressure Switch (Status
Indicator) Rating
Contacts - 5 amps at 250 volts AC, or 5 amps at 30 volts DC
Monitoring
Dynamically, cyclically, internally during each actuating and de-actuating
movement. Monitoring function has memory and requires an overt act
to reset unit after lockout.
Operation Frequency
Minimum once per month, to ensure proper function
Construction Material
Valve Body:
Cast Aluminum
Poppet:
Acetal and Stainless Steel
Seals:
Buna-N
Functional Safety Data:
Category 4, PL e; B
10D
: 20,000,000; PFH
D
: 7.71x10
-9
;
MTTF
D
: 301.9 (n
op
: 662400).
Certifications:
CE Marked for applicable directives, DGUV, CSA/UL, TSSA for appropriately tested
valves
Vibration/Impact Resistance:
Tested to BS EN 60068-2-27.
