Victaulic 751 FireLock Series User Manual

IMPORTANT INSTALLATION INFORMATION
1. For proper operation and approval, the Series 751 FireLock Alarm
Check Valve must be installed in accordance with the specific trim
diagrams included with the shipment.
2. Before installing the Series 751 FireLock Alarm Check Valve, flush
the water supply piping thoroughly to remove all foreign material.
3. Series 751 FireLock Alarm Check Valves MUST NOT be located in
an area where the valve can be exposed to freezing temperatures.
In addition, the Series 751 FireLock Alarm Check Valve MUST
NOT be located in an area where physical damage may occur.
4. It is the system designer’s responsibility to confirm material com-
patibility of the Series 751 FireLock Alarm Check Valve, trim, and
associated accessories when a corrosive environment or contami-
nated water is present.
5. SERIES 751 FIRELOCK ALARM CHECK VALVES MUST BE
INSTALLED ONLY IN THE VERTICAL POSITION WITH THE
ARROW ON THE BODY POINTING UPWARD. THE ARROW ON
THE SWING CHECK VALVE IN THE BYPASS LINE MUST POINT
UPWARD.
6. The Victaulic Series 752 VdS Retarding Chamber Assembly should
be installed in variable pressure applications. NOTE: Victaulic pro-
vides specific trim drawings for installations that involve a Series
752 VdS Retarding Chamber Assembly.
Optional Series 752V
Retard Vent Kit
To Water Motor
Alarm or Optional
Series 752V Retard
Vent Kit
Pipe to
Open Drain
Optional Alarm
Pressure Switch
Optional Series 760 European
Water Motor Alarm Assembly
6a. The Series 752V Retard Vent Kit is required any time an air break
is needed above the Series 752 VdS Retarding Chamber Assembly.
In addition, the Series 752V Retard Vent Kit is required if multiple
valves are tied into one water motor alarm and a check valve iso-
lates each line. Refer to the drawing above.
7. When the Series 751 FireLock Alarm Check Valve is used with a
water motor alarm, an uninterrupted alarm pressure switch is rec-
ommended in the location shown in the drawing above.
VALVE/TRIM INSTALLATION
1. Make sure trim drawings match system requirements.
CAUTION
• Make sure the foam spacer is removed from
inside the valve body before attempting to
install the valve.
Failure to follow this instruction could cause
improper valve operation, resulting in personal
injury and/or property damage.
2. Remove all plastic caps and foam spacers from the valve.
3. Apply a small amount of pipe joint compound or PTFE thread
sealant tape to the external threads of all threaded pipe
connections. DO NOT get any tape, compound, or other foreign
material into the valve body, pipe nipples, or valve openings.
CAUTION
• Make sure no foreign material gets into the valve body, pipe
nipples, or valve openings.
• If using any material other than PTFE thread sealant tape, use
extra caution so that no material gets into the trim.
Failure to follow these instructions could cause improper valve
operation, resulting in personal injury and/or property damage.
4. Install the valve, trim, and accessories per the trim drawing.
HYDROSTATIC TESTING
The Victaulic Series 751 European Alarm Check Valve is manufactured
and listed for a maximum working pressure of 16 Bar and is factory
tested to 41 Bar. The station can by hydrostatically tested against
the clapper at 14 Bar and/or 3.5 Bar above the normal water supply
pressure (2-hour limited time period) for acceptance by the authority
having jurisdiction.
I-751.VDS / Series 751 FireLock
™
European Alarm Check Valve Stations / Installation, Maintenance, and Testing Manual
I-751.VDS_6 REV_F

Victaulic 751 FireLock Series Specifications

General

Brand	Victaulic
Model	751 FireLock Series
Category	Control Unit
Language	English