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IMPORTANT NOTE:

 

 Please read carefully and thoroughly all of the 

CAUTIONS, WARNINGS

 

on the inside back cover.

F3.5

www.rosscontrols.com

Online Version
Rev. 11/14/16

4

Control Reliable Double Valves

with Dynamic Monitoring 

Explosion proof solenoid pilot available for basic size 4 valves, for more information consult ROSS.   

DM

1

 Series C

Air Dump / Release

Simplified Schematic

 

1

3

2

Dynamic Monitoring:

 

 Monitoring and air flow control functions are integrated into two identical valve 

elements for CAT 4 applications.  The valve exhausts downstream air if asynchronous movement of 
valve elements occurs during actuation or de-actuation, resulting in a residual outlet pressure of less 
than 1% of supply.  If the abnormality clears itself, the valve will return to the ready-to-run state; there 
is no memory of the abnormal behavior, as in the ROSS DM

2® 

Series E and DM

2® 

Series C products 

that require an intentional reset following lockout.  

Basic 3/2 Normally Closed Valve Function:

  Dirt tolerant, wear compensating poppet design for 

quick response and high flow capacity.  PTFE back-up rings on pistons to enhance valve endurance – 
operates with or without inline lubrication.

Ready-to-run:

  If an abnormality clears itself upon the removal of electricity to both solenoids, it will be 

ready-to-run again.  It does not remember the abnormality and stay in a locked-out state until intentionally 
reset.  Therefore, cumulative abnormalities may go undetected.

Status Indicator:

 Includes a pressure switch with both normally open (NO) and normally closed (NC) 

contacts to provide status feedback to the  control system indicating whether the valve is in the “ready-
to-run” condition or has experienced abnormal function. MUST be integrated into machine controls in 
order to prevent run signal until fault is cleared in valve. This indicator only reports status, it is not part 
of a lockout function.

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.  

Basic 

Size

Inlet 

Port Size

C

V

Weight

lb (Kg)

1-2

2-3

2

1/4

1.67

2.61

5.3 (2.4)

2

3/8

2.17

2.61

5.3 (2.4)

4

1/2

3

10

5.9 (2.6)

8

3/4

4.2

13

8.4 (3.7)

8

1

4.4

13

8.4 (3.7)

Valve and base assembly with status indicator.

 

DM1C 

A  

4 2  A 

1

 

 

Basic Size

2

2

4

4

8

5

Automatic

Reset Type

Thread

BSPP

D

NPT

N

Status Indicator
Yes

1

No

X

Base Port Size

2 1/4 inlet – 1/4 outlet

0

3/8 inlet – 3/8 outlet

1

4 1/2 inlet – 1/2 outlet

2

8 3/4 inlet – 3/4 outlet

1 inlet – 1 outlet

4

5

HOW TO ORDER

(Choose your options (in red) to configure your valve model number.)

Voltage

*

24 volts DC

A

110 volts AC, 50 Hz

120 volts AC, 50/60 Hz

B

For other voltages consult ROSS.

Connection Type
EN 175301-803 Form A

*

(connector not included)

Blank

M12 (connector included)

005

*

See options for connectors

 or wiring kits.

ISO 13849-1:2006 

Category 4 PL e 

applications

HSM 16008

Sicherheit seprüft

tested safety

Construction: 

Dual poppet.  

Mounting Type: 

 Base mounted.

Pilot Solenoids: 

According to VDE 0580.  Enclosure rating according to 

DIN 400 50 IP 65.  Three solenoids, rated for continuous duty.

Standard Voltages/Pilot Solenoids Power Consumption 

(each solenoid):

Basic Size 2 & 4: 

24 volts DC; 110 volts AC, 50 Hz; 120 volts AC, 50/60 Hz.
5.8 watts nominal on AC and DC; 6.5 watts maximum on AC and DC.

Basic Size 8: 

15 watts on DC;  36 VA inrush and 24.6 VA holding on AC.

Enclosure Rating: 

 IP65, IEC 60529. 

Electrical Connection:

 EN 175301-803 Form A, or M12. 

Ambient Temperature:

  15° to 122°F (-10° to 50°C).

Media Temperature:  

40° to 175°F

 

(4° to 80°C).

Flow Media:

 Filtered, lubricated or unlubricated (mineral oils according 

to DIN 51519, viscosity classes 32-46).   

Inlet 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).

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. 

Mounting Orientation:

  Preferably horizontally (valve on top of base) or 

vertically with pilot solenoids on top.

                                                                                                                                    
Product data for Sistema Library users, pending.

STANDARD SPECIFICATIONS 

(for valves on this page)

:

F

F3

(Basic Size 2

DGUV, CE

Certifications 

pending)

REVISION LEVEL
Size 4, 8, 12, 30

A

Size 2

B

This valve is not designed for controlling clutch/brake mechanisms on mechanical power presses, 

see DM2

® 

series D for mechanical power press applications.

Summary of Contents for DM1 Series C

Page 1: ...asic Size Inlet Port Size CV Weight lb Kg 1 2 2 3 2 1 4 1 67 2 61 5 3 2 4 2 3 8 2 17 2 61 5 3 2 4 4 1 2 3 10 5 9 2 6 8 3 4 4 2 13 8 4 3 7 8 1 4 4 13 8 4 3 7 Valve and base assembly with status indicator DM1C N A 4 2 A 3 1 Basic Size 2 2 4 4 8 5 Automatic Reset Type Thread BSPP D NPT N Status Indicator Yes 1 No X Base Port Size 2 1 4 inlet 1 4 outlet 0 3 8 inlet 3 8 outlet 1 4 1 2 inlet 1 2 outlet ...

Page 2: ...1 90 48 3 7 48 190 0 34 8 6 4 places Valve envelope Based in overall hole dimensions at left View X Base mounting hole pattern 4 60 116 8 2 68 68 1 4 28 108 7 0 86 21 9 6 23 158 2 0 16 4 1 3 4 or 1 NPT Outlet Port Each Side 3 4 or 1 NPT Inlet Port Each Side Status Indicator Main Solenoids Basic Size 8 Basic Size 4 Schematic Valve de actuated Pressure Switch Status Indicator Exh 1 2 3 1 2 3 F F3 Va...

Page 3: ... actuatedposition Internalair passages shown out of the valve body for clarity Status indicator in normal ready to run position WARNING If asynchronous operation occurs while DE ACTUATING the pilot supply timing chambers on one side will still be exhausted as describedabove However thiscouldbeatemporarysituationbecause the cause of the asynchronous operation may be able to correct itself allowing ...

Page 4: ...ing Kits with J Box AJ Boxisajunctionboxwitha10 pinMINIconnectorforconnectingtotheuser scontrolsystem and 4 5 pin M12 ports for connecting to the 3 solenoids and the status indicator on the DM2 Series valve The J Box kits include the J Box as described above and 4 1 meter cables for connecting to the valve These cables have a connector on each end The status indicator cable and the 3 solenoid cabl...

Page 5: ...values the figures given in this catalog should not be used to compare ROSS valves with those of other makers The CV ratings given here are intended only for use with performance charts published by ROSS The CV ratings are averages for the various flow paths through the valve and are for steady flow conditions Approvals and Certifications ROSSproductsaredesignedtomeetanumberofindustrialstandards i...

Page 6: ...ally leading to valve failure which risks human injury and or damage to property AVOID INTAKE EXHAUST RESTRICTION 8 Do not restrict the air flow in the supply line To do so could reduce the pressure of the supply air below the minimum requirements for the valve and thereby cause erratic action 9 Do not restrict a valve s exhaust port as this can adversely affect its operation Exhaust silencers mus...

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