Bray 63 N4_N7 Series - Manual

All information herein is proprietary and confidential 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 infor-
mation on: Operation, Positioning, Mounting,
Cleaning, Preventive Maintenance, Causes of
Improper Operation, Disassembly, and Reas-
sembly of basic valve.
DESCRIPTION
S63 N4/N7 Solenoid coils are thermoplastic en-
capsulated 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 as-
sembly is drawn into the plugnut/core tube sub-
assembly. 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 fire or explosion, do not install so-
lenoid 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 Na-
tional Electrical Code. The solenoid is provided
with lead wires and one grounding wire, which
is green or green with a yellow stripe. To facili-
tate 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 criss-
cross 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 fittings should be used.
WARNING
For the watertight and explosion proof solenoid,
electrical fittings must be approved for use in
hazardous locations.
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