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1

2

3

4

5

14

   Pressure Controlled 

Solenoid Pilot

No Signal Applied:  

All ports closed.

Signal 12 Applied:  

Inlet 1 connected to outlet 2;  outlet 4 

connected to exhaust 5;  exhaust 3 closed.

Signal 14 Applied:  

Inlet 1 connected to outlet 4;  outlet 2 

connected to exhaust 3;  exhaust 5 closed. 

 

Pressure Controlled 

Solenoid Pilot

No Signal Applied:  

Inlet 1 connected to outlet 2;  outlet 4 

connected to exhaust 5;  exhaust 3 closed.

Signal 14 Applied:  

Inlet 1 connected to outlet 4;  outlet 2 

connected to exhaust 3;  exhaust 5 closed.

Listed below are the valve body service kits and solenoid 
replacement coils for Series W65 valves.

Valve Body Service Kits.  

These kits contain all parts 

needed for complete reconditioning of a valve body.  Included 
are a spool and sleeve, all required gaskets and seals,  and 
instructions for use.

 

VALVE SERVICE

  Pressure Controlled 

Solenoid Pilot

Signal 12 Applied Momentarily:  

Inlet 1 connected to outlet 

2; outlet 4 connected to exhaust 5;  exhaust 3 closed.

Signal 14 Applied Momentarily:  

Inlet 1 connected to outlet 

4; Outlet 2 connected to exhaust 3;  exhaust 5 closed.

  Pressure Controlled 

Solenoid Pilot

No Signal Applied:  

Inlet 1 closed;  outlet 2 connected to 

exhaust 3;  outlet 4 connected to exhaust 5.

Signal 12 Applied:  

Inlet 1 connected to outlet 2;  outlet 4 

connected to exhaust 5;  exhaust 3 closed.

Signal 14 Applied:  

Inlet 1 connected to outlet 4;  outlet 2 

connected to exhaust 3;  exhaust 5 closed.  

CONVERSION TO EXTERNAL PILOT SUPPLY
To convert a W65 Series ISO valve to external pilot supply:

1.  Remove pipe plug from port 14 on base or manifold.
2.  Pipe a 1/8" supply line to port 14.
3.  Pressure in external supply line should be greater than 

inlet.  If, for any reason, the external supply is lost or 
drops below inlet pressure (port 1), the valve will switch 
back to internal pilot supply.

Port 14

Typical Spool-and-Sleeve Cross Section

5/2 SINGLE CONTROL VALVES

5/2 MOMENTARY CONTROL VALVES

5/3 OPEN CENTER VALVES

1

2

3

4

5

14

1

2

3

4

5

12

14

1

2

3

4

5

12

14

1

2

3

4

5

12

14

1

2

3

4

5

12

14

1

2

3

4

5

12

14

1

2

3

4

5

12

14

 

rosscontrols.com 

   3

5/3 CLOSED CENTER VALVES

VALVE OPERATION

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. 

Replacement 

Solenoid 

Coils

Voltage

24 volts DC 110-120 volts AC 210-220 volts AC

334B3316

334B33151

334B33152

Valve Type

ISO Size 1 

Kit Number

ISO Size 2 

Kit Number

ISO Size 3

Kit Number

Single Control

1422K77

1467K77

1471K77

Momentary Control 1423K77

1468K77

1472K77

Closed Center

1424K77

1469K77

1473K77

Open Center

1425K77

1470K77

1474K77

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