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VALVE SPECIFICATIONS
VALVE SERVICE
If you have any questions about installing or servicing your valve, call ROSS Technical Services at your nearest ROSS
location (see page 4) or in the U.S.A. at: 1-888-TEK-ROSS.
IMPORTANT NOTE: Please read carefully and thoroughly all the WARNINGS and CAUTIONS on page1 and page 4.
Construction: Poppet; Acetal.
Mounting Type: In-Line.
Solenoid Pilot: Rated for continuous duty.
Standard Voltages/Pilot Solenoids Power
Consumption (each solenoid): 24 volts DC, 4.6 watts;
120 volts AC, 60 Hz, 6.8 volt amps.
Ambient Temperature: 40° to 140°F (4° to 60°C).
Media Temperature: 40° to 175°F (4° to 80°C).
Flow Media: Filtered air.
Inlet Pressure:
Body Size 3/8, 3/4, 1
½
: 15 to 150 psig (1 to 10 bar).
Body Size 2: 30 to 150 psig (2 to 10 bar).
Valve Body Service Kits.
These kits contain all parts needed for complete
reconditioning of a valve body. Included are poppets,
spindle, all required gaskets and seals, and
instructions for use.
Order by the kit numbers listed at the right.
Gasket and Seal Kits.
These kits are needed when valve bodies are
disassembled for cleaning. They include all the
necessary gaskets, O-rings, and other seals.
Order by the kit numbers listed at the right.
Solenoid Pilot.
Replacement pilot valve can be ordered by the
following part number: 1488G79.
Specify voltage when ordering.
Solenoids.
Replacement solenoids can be ordered by the
following part number: 409B33.
Specify voltage when ordering.
Valve
Type
Port Sizes
Body
Size
Valve Body
Kit Number*
Gasket & Seal
Kit Number*
2/2
Normally
Closed
1/4, 3/8, 1/2 3/8 501K87 513K87
1/2, 3/4, 1 3/4 502K87 514K87
1, 1¼, 1½ 1¼ 503K87 515K87
1½, 2, 2½ 2 547H77 —
2/2
Normally
Open
1/4, 3/8, 1/2 3/8
504K87 513K87
1/2, 3/4, 1 3/4
505K87 514K87
1, 1¼, 1½ 1¼
506K87 515K87
1½, 2, 2½ 2
548H77 —
3/2
Normally
Closed
1/4, 3/8, 1/2 3/8
495K87 510K87
1/2, 3/4, 1 3/4
496K87 511K87
1, 1¼, 1½ 1¼
497K87 512K87
1½, 2, 2½ 2
814K77 —
3/2
Normally
Open
1/4, 3/8, 1/2 3/8
498K87 510K87
1/2, 3/4, 1 3/4
499K87 511K87
1, 1¼, 1½ 1¼
500K87 512K87
1½, 2, 2½ 2
550H77 —
4/2
1/4, 3/8, 1/2 3/8
492K87 507K87
1/2, 3/4, 1 3/4
493K87 508K87
1, 1¼, 1½ 1¼
494K87 509K87
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.
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