Bray 63 N4, 63 N7 User Manual
All information herein is proprietary and condential and may not be copied or reproduced without the expressed written
consent of BRAY INTERNATIONAL, Inc.
The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed
knowledge and experience with their application.
SERIES 63 N4/N7 Operation & Maintenance Manual
Manual Number OM-63/N4-N7-001
Date: November 10, 2009 Page 1 of 3
Bray Series 63-N4/N7 Installation & Maintenance Instructions
General Purpose/Rain tight/Water tight and
Rain tight/Water tight/Explosion proof
For S63-N4 see O&M Instructions for information on: Operation, Positioning, Mounting,
Cleaning, Preventive Maintenance, Causes of
Improper Operation, Disassembly, and Reassembly of basic valve.
DESCRIPTION
S63 N4/N7 Solenoid coils are thermoplastic encapsulated pull-type for use with Bray solenoids.
These solenoids have three lead wires with one
wire for grounding and a ½ NPT male conduit
connection. S63 N4 Solenoids are designed to
meet Enclosure Type 1-General Purpose, Types 3
and 3S-Raintight, and Types 4 and 4X-Watertight.
S63 N4/N7 Solenoids meet Enclosure Types 3 and
3S-Raintight, Types 4 and 4X-Watertight, Type 7
Explosion proof Class I, Division 1, Groups A, B,
C, & D and Type 9 - Dust - Ignition proof Class
II, Division 1, Groups E, F, & G.
OPERATION
When the solenoid is energized, the core assembly is drawn into the plugnut/core tube subassembly. When the solenoid is de-energized,
spring force returns the core assembly to the
original position.
Enclosure Types 7 and 9 Only
CAUTION
To prevent re or explosion, do not install solenoid and/or valve where ignition temperature
of hazardous atmosphere is less than 160° C.
Open circuit before disassembling.
Positioning
Solenoid may be mounted in any position.
Valve Mounting
The solenoid is assembled onto an actuator and is
rigidly supported using the actuator body mount-
ing provisions.
CAUTION
Solenoid coil wiring must be carried out by
trained personnel.
Wiring
Wiring must comply with local codes and the National Electrical Code. The solenoid is provided
with lead wires and one grounding wire, which
is green or green with a yellow stripe. To facilitate wiring, the solenoid may be rotated 360° in
90° increments. To rotate solenoid, remove the
four mounting screws, reposition solenoid and
replace screws. Torque screws evenly in a crisscross manner to 12 in-lbs [1.3 Nm].
Solenoids have a ½-14 NPT male thread. For
connection to rigid metal conduit, metal type
NPT electrical ttings should be used.
WARNING
For the watertight and explosion proof solenoid,
electrical ttings must be approved for use in
hazardous locations.
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SERIES 63 N4/N7 Operation & Maintenance Manual
Manual Number OM-63/N4-N7-001
Date: November 10, 2009 Page 2 of 3
All information herein is proprietary and condential and may not be copied or reproduced without the expressed written
consent of BRAY INTERNATIONAL, Inc.
The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed
knowledge and experience with their application.
CAUTION
Temperature of external casing of coil can burn
skin.
Solenoid Temperature
Standard solenoids are designed for continuous
duty service. When the solenoid is energized for
a long period, the solenoid becomes hot and can
be touched by hand only for an instant. This is a
safe operating temperature.
MAINTENANCE
WARNING
To prevent the possibility of personal injury
or property damage, turn off electrical power,
depressurize valve, and vent medium to a safe
area before servicing.
Cleaning
All solenoid valves should be cleaned periodically. The time between cleaning will vary depending on medium and service conditions. In
general, if the voltage to the solenoid is correct,
sluggish valve operation, excessive noise, or
leakage will indicate that cleaning is required. In
the extreme case, faulty valve operation will occur and the valve may fail to shift. Clean strainer
or lter when cleaning the valve.
Preventive Maintenance
Keep the medium owing through the sole-•
noid valve as free from dirt and foreign mate-
rial as possible.
While in service, the solenoid valve should •
be operated at least once a month to ensure
proper opening and closing.
Depending on the medium and service con-•
ditions, periodic inspection of internal valve
parts for damage or excessive wear is recommended. Thoroughly clean all parts. Replace
any worn or damaged parts.
Causes of Improper Operation
Faulty Control Circuit: • Check the electri-
cal system by energizing the solenoid. A metallic click signies that the solenoid is operating. Absence of the click indicates loss
of power supply. Check for loose or blown
fuses, open-circuited or grounded solenoid,
broken lead wires or splice connections.
Burned-Out Solenoid:• Check for open-
circuited solenoid. Check supply voltage; it
must be the same as specied on nameplate
and marked on the solenoid. Check ambient temperature and check that the core is not
jammed. If necessary, replace pilot valve.
Low Voltage: • Check voltage across the so-
lenoid leads. Voltage must be at least 85% of
rated voltage.
ORDERING INFORMATION FOR REPLACEMENT PILOT VALVE WITH SOLENOID:
Specify valve Catalog Number1.
Solenoid Catalog Number2.
Serial Number3.
Voltage4.
Frequency5.
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