Brochure

Parker Hannifin Corporation
Climate & Industrial Controls Group
Cleveland, OH
Catalog CIC-2003-1/US
Refrigeration Solenoid Valves
266
Technical Information Jackes-Evans Refrigeration Solenoid Valves
Ordering Information
Valve Assembly
To order a solenoid valve assembly less the coil,
specify valve model number as defined above.
Examples: RB21ME7 (normally closed)
ORB21E7 (normally open)
The valve body assembly, identification plate and coil
retainer are all included.
Coil Assemblies
To order coil assembly only, specify the coil type,
voltage and frequency.
Examples: R-23, 120V-60Hz (normally closed)
OR-23, 120V-60Hz (normally open)
Valve Component Data
Unless otherwise stated, the components used in
Jackes-Evans Solenoid Valves are as follows:
Body: Forged or Bar Stock Brass
Internal Parts: Stainless Steel
Springs: Stainless Steel
Pilot Seats: Neoprene
Diaphragms: PTFE
Applications/Compatibility
Jackes-Evans Refrigeration Solenoid Valves are
designed for typical liquid line, suction line, discharge
line and hot gas valve applications and are compatible
with virtually all of today’s CFC, HFC, and HCFC refrig-
erants and blends.*These valves are not designed for
ammonia applications.
*For R-123 applications, different seals must be used – Please consult
Parker.
Valve & Coil (Factory Assembled)
To order a complete valve coil assembly specify the
valve model number with the coil type, voltage and
frequency.
Example: RB21ME7 with R-23-120V-60Hz
Parts Kits
All currently manufactured Jackes-Evans valves are
completely serviceable. If it is necessary to replace one
internal part, all internal parts should also be replaced
at that time. Therefore, standard service kits include the
plunger assembly, diaphragm assembly and bonnet
seal. Bonnet assemblies are also available but seldom
need replacement.
Packaging
When placing your order, specify individual or bulk
packaging. If this information is not specified, it be-
comes Parker’s option.
Note: Parker Jackes-Evans refrigeration solenoid valves are being discontinued. For all new applications, see pages 229-262 of
this catalog for new and improved R Series refrigeration solenoid valves. See page 267 for the R Series/Jackes-Evans Cross
Reference chart.
When the coil is de-energized, the pilot orifice is closed.
The inlet pressure through the equalizer orifice equal-
izes the pressure above and below the diaphragm. The
diaphragm resets, closing the valve.
MOPD (Maximum Opening Pressure Differential)
The MOPD between the inlet and outlet pressure of the
valve must not be exceeded or the valve will not open.
Conversely, if the valve is applied to a system when
minimum operating pressure differential is not
achieved, the valve will not open fully. These values are
listed in the specifications for each type of valve.
Nomenclature
Example: RB21ME7…R23-120/60
Coil Nomenclature
R-23= Normally
Closed Valves
OR-23= Normally
Open Valves
R23-120/60
Connection Size
Size of End
Connection
in eighths (inches)
Example:
3 = 3/8”
13 = 1-5/8”
7
Connection
E - Ext. End
F - Flare
E
Bypass
M - Manual
Bypass
(not appli-
cable
to normally
open valves)
M
Nominal
Capacity
Tonnage (R-12)
1= 1 Ton
3= 3 Ton
6= 6 Ton
9= 9 Ton
15 = 15 Ton
21 = 21 Ton
41 = 41 Ton
81 = 81 Ton
21
Body
Material
B - Brass
B
Type
R - Refrigeration
(normally closed)
*An O prefix (“OR” )
denotes normally open
R*