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10

© 2016, 

ROSS

 CONTROLS

®

.  Content subject to change

.

Online Version

Rev. 11/14/16

General Information

 

Thread Types by Model Prefix Letter

 Pneumatic Port 

 Prefix  Threaded Electrical   

Threads  

Letter 

Opening

NPT

 (ANSI B2.1) 

None  

NPT

ISO 228

 - DIN 259 Parallel, BSPP

#

 

C

*

 

ISO 228

 - DIN 259 Parallel, BSPP

#

 

D

 G 

ISO 228

 - JIS B0203 Tapered

#

 

J

 ISO

SAE

 1926- ISO 11926 

S

  

NPT 

Used only for filters, regulators, lubricators.

ISO 228 threads superseds BSPP, G and JIS thread types.  

Order Placement

For order placement, consult ROSS or your local ROSS distributor.

For a current list of countries and local distributors, visit ROSS’ website at www.rosscontrols.com.

Standard Specifications

The standard specifications for the products on each page of this 
catalog are given on the same page or referenced.  For solenoid pilot 
valves, models with internal pilot supply are listed.  Most models are 
also available for use with external pilot supply or have a built-in pilot 
supply selector valve.
The products in this catalog are intended for use in industrial pneumatic 
systems.  Most products are adaptable to other uses and conditions not 
covered by the standard specifications given in this catalog.  Weights 
shown are approximate and are subject to change.  Dimensions given, 
unless otherwise noted, are envelope dimensions (not for mounting).  
Consult ROSS for further information.  

Port Threads

Ports of valves and bases described in this catalog have NPT (ANSI 
B2.1) threads.  Other thread types can be specified by putting an 
appropriate prefix letter on the model or part number when ordering.

Flow Ratings

Flow ratings are expressed as C

V

 where C

V

 = 1 corresponds to a 

steady state air flow of approximately 32 scfm under the following 
conditions: 
 

 

Inlet pressure = 100 psig (6.7 bar)

 

 

Pressure drop = 10 psi (0.69 bar)

 

 

Air temperature = 68°F (20°C)

 

 

Relative humidity = 36%

Note:

  Because widely differing test standards are used to measure C

V

 

values, the figures given in this catalog should not be used to compare 
ROSS valves with those of other makers.  The C

V

 ratings given here 

are intended only for use with performance charts published by ROSS.  
The C

V

 ratings are averages for the various flow paths through the 

valve and are for steady flow conditions.

Approvals and Certifications

ROSS products are designed to meet a number of industrial standards, 
including the Canadian Standards Association (C.S.A.) guidelines. 
For more information on specific product approvals, contact  your local 
distributor or ROSS.

Solenoids

All ROSS standard solenoids are rated for continuous duty (unless 
noted otherwise) and will operate the valve within the air pressure 
range specified in this catalog.

Explosion-Proof Solenoid Pilot available, for more information 
consult ROSS.

Voltage & Hertz

When ordering a solenoid valve, also specify the desired solenoid 
voltage and hertz.

Recommended Solenoid Voltages:

  100-110 volts AC, 50 Hz; 

100-120 volts AC, 60 Hz; 24 volts DC; 110 volts DC.

In addition, the following voltages are available:
200, 220 volts AC, 50 Hz
200, 240, 480 volts AC, 60 Hz
24, 48, 220 volts AC, 50 Hz
240 volts AC, 60 Hz
200, 220 volts AC, 50 Hz
200, 240 volts AC, 60 Hz.
For example:   Model 2773B5001, 120 volts AC, 60 Hz.
 

 

 Model W6076B2401, 220 volts AC, 50 Hz. 

Please note that not all configurations are available for all models.

For additional information or help with voltage configuration, please 
contact  your local distributor or ROSS.

Port Identification

Valve symbols in this catalog conform to the ISO  1219-1:1991 
standard of the International Organization for Standardization (ISO) 
and the SAE J2051 standard of the Society of Automotive Engineers 
(SAE) respectively.

Information or Technical Assistance

For additional information or application assistance concerning ROSS 
products, consult ROSS or your local ROSS distributor (see contact 
information on the back cover).

 Voltage Types by Model Suffix Letter

Voltage 

Suffix Letter

120 volts AC 

Z

220 volts AC 

Y

 

12 volts DC 

H

24 volts DC 

W

  

48 volts DC 

M

  

90 volts DC 

K

  

110 volts DC 

 

125 volts DC 

C

 

Summary of Contents for M DM2 C Series

Page 1: ...he model number with a D e g MDM2CDA55A23 STANDARD SPECIFICATIONS for valves on this page Double Valves with Dynamic Monitoring Memory 10 78 273 8 5 73 145 5 5 35 136 0 5 81 147 6 Adjustable Flow Control Inlet Outlet 1 63 41 3 GRAY Equip Ground WHITE N O Status Contact BROWN 24 Volts DC BLUE Common 5 Pin A Code Female Connector BLACK N C Status Contact 1 2 5 4 3 GRAY Reset WHITE Sol 2 BROWN 24 Vol...

Page 2: ... inlet poppet and return piston to hold the element in the fully closed position Inlet air flow on side A into its crossover is restricted and flows through the open inlet poppet on side B through the outlet into the exhaust port and from the exhaust port to atmosphere Residual pressure in the outlet is less than 1 of inlet pressure The return springs are limited in travel and can only return the ...

Page 3: ...ed port must be closed with a pipe plug The inlet and outlet are not threaded Specially designed clamps provide a quick and easy assembly or disassembly of MD3TM modules Two allen head bolts quickly tighten or loosen the clamp using a 5 32 or 4mm hex key The clamp contains a plate carrying two O rings to provide positive sealing between modules Order clamp by part number R A118 105 Combined clamp ...

Page 4: ... 2 4 13 00 330 0 11 00 279 0 5 40 134 7 NPT pressure port threads Specify voltage when ordering Insert voltage code W 24 volts DC Z 110 120 volts AC 50 60 Hz e g RC304 09W M12 connectors available consult ROSS Standard Air Entry Packages supplied with metal bowl and manual drain For automatic drain insert an A before the dash in the model number e g RC304A 09 4 Pre engineered panel mounted design ...

Page 5: ...DC Z 110 120 volts AC 50 60 Hz e g RC408 06W M12 connectors available consult ROSS Standard Air Entry Packages supplied with metal bowl and manual drain For automatic drain insert an A before the dash in the model number e g RC408A 06 M DM2 Series C Double Valves with Integrated Soft Start Manual Lockout L O X Valves with Integrated Filter Regulators Pre engineered panel mountable design with air ...

Page 6: ...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 7: ...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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