3
When a valve is converted to external pilot supply, consult ROSS for the
converted valve’s model number. This will allow records and drawings to be
changed and prevent errors when ordering future replacements.
INLINE POPPET VALVES: See Figure 1.
1. Remove pilot section and adaptor plate from valve body.
2. Remove pipe plug from external pilot supply port, and
reinstall the plug in the internal pilot supply passage.
3. Replace pilot section.
4. Attach 1/8” pilot supply line to external plot supply port (X-1).
5. External pilot supply pressure must be at least equal to the main supply pressure.
CONVERSION TO EXTERNAL PILOT SUPPLY
Pilot
Exhaust
Port
External
Pilot
Supply
Port
Internal
Pilot
Supply
Passage
Adaptor
Plate
Figure 1
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.
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.
Solenoid Pilot Kits. These kits contain all parts needed to
recondition the pilot valve. Order by the following kit numbers:
For single solenoid pilots:
High Temperature: 947K87
Low Temperature: 946K87
For double solenoid pilots:
Low Temperature: 273K87
Solenoids. Replacement solenoids can be ordered by the
part numbers listed below.
Specify the required voltage and hertz when ordering.
For single solenoid pilots:
High Temperature: 257B04
Low Temperature: 411B04
For double solenoid pilots:
Low Temperature: 171C95
Adapters. Some valves have adapters (e.g.,
time delay, PB, air index, or L-O-X
®
adapters)
above the valve body.
For information on servicing these adapters,
please consult ROSS.
*Consult ROSS Technical Services for high-pressure
and vacuum service kits.
VALVE SERVICE
Valve
Type
Port
Sizes
Body
Size
Temperature
Service
Type
Valve Body
Kit Number*
Gasket &
Seal
Kit Number*
2/2
Normally
Closed
1/4, 3/8,
1/2
3/8
High 207K77 198K77
Low 237K77 228K77
1/2,
3/4, 1
3/4
High 208K77 199K77
Low 238K77 229K77
1, 1¼,
1½
1¼
High 209K77 200K77
Low 239K77 230K77
2/2
Normally
Open
1/4, 3/8,
1/2
3/8
High 213K77 198K77
Low 243K77 228K77
1/2,
3/4, 1
3/4
High 214K77 199K77
Low 244K77 229K77
1, 1¼,
1½
1¼
High 215K77 200K77
Low 245K77 230K77
3/2
Normally
Closed
1/4, 3/8,
1/2
3/8
High 219K77 201K77
Low 249K77 231K77
1/2,
3/4, 1
3/4
High 220K77 202K77
Low 250K77 232K77
1, 1¼,
1½
1¼
High 221K77 203K77
Low 251K77 233K77
3/2
Normally
Open
1/4, 3/8,
1/2
3/8
High 225K77 201K77
Low 255K77 231K77
1/2,
3/4, 1
3/4
High 226K77 202K77
Low 256K77 232K77
1, 1¼,
1½
1¼
High 227K77 203K77
Low 257K77 233K77
4/2
1/4, 3/8,
1/2
3/8
High 260K77 258K77
Low 264K77 262K77
1/2,
3/4, 1
3/4
High 261K77 259K77
Low 265K77 263K77
1, 1¼,
1½
1¼
High 278K77 277K77
Low 289K77 288K77
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