Victaulic FireLock NXT 764 Series User manual

Certifications/Listings:
EN 12259-2:1999
EN 12259-3:2000
Cert/LPCB Ref. 104g/01
See Victaulic Publication 10.01 for more details.
Product Description:
This patent-pending Victaulic FireLock NXT Series 764
Alternate Valve is a low-differential, latched clapper valve
that uses a unique direct-acting diaphragm to separate
system water supplies from dry-pipe sprinkler systems.
This valve offers a trim system that accommodates both
wet and dry systems and is field-convertible.
Patent Pending
30.83
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victaulic.com | NXT Alternate Wet/Dry Valve | Series 764 | Publication 30.83
30.83 4630 Rev D Updated 03/2021 © 2021 Victaulic Company. All rights reserved.
FireLock NXT™
Alternate Wet/Dry Valve
Series 764

Features: The low-differential latch and actuator design allows the
valve to be reset without opening and is not subject to
water columns.
The valve allows the water to operate a water motor
alarm and/or electric pressure alarms, which operate
until the flow of water stops.
An optional accelerator is available when larger systems
require a faster response.
The valve is available for 1 ½ – 8"/40 – 200 mm pipe
sizes and is rated to: UL, FM to 300 psi/2068 kPa and
LPCB to 232 psi/1600 kPa due to the esoteric wet valve
requirements. Required air pressure is 13 psi/90 kPa.
The valve is grooved x grooved. Standard grooving
dimensions conform to ANSI/AWWA C606.
The Series 764 valve is made of high-strength, low-
weight ductile iron and offers easy access to all internal
parts, even after installation. All internal parts are
replaceable. The rubber clapper seal can be easily
replaced without removing the clapper from the valve.
The valve is painted inside and out to increase corrosion
resistance.
The body is tapped for main drain and all available trim
configurations. It is available bare, or in the following
configurations:
Pre-Trimmed
Compact, pre-assembled trim for both wet and dry
systems can be specified for this valve. See below for
envelope dimensions of this dual-purpose system.
Vic-Quick Riser
(request publication 30.20)
The Vic-Quick Riser comes completely pre-trimmed and
includes a shut-off valve (Series 705W butterfly valve –
request publication 10.18) for system shut-off, pre-set
pressure switches, and a drain kit for ease of installation.
Exaggerated for clarity
Clapper Seal
Latch
Clapper
Diaphragm
Assembly
Seat
Exaggerated for Clarity
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Dimensions: The 4"/11 4.3 mm configuration is shown below
1 ½" – 2"/48.3 – 60.3 mm configurations contain ¾"/19 mm npt drain valves.
2 ½" – 3"/73.0 – 88.9 mm configurations contain 1 ¼"/31mm npt drain valves.
4 – 8"/11 4.3 – 219.1 mm configurations contain 2"/50 mm npt drain valves.
Nominal
Size
Actual
Outside
Diameter
Dimensions
Approx.
Weight
Each
AA11BB11 C11D E E11F G G11H J K L
Without
Trim
With
Trim
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
lbs.
kg
lbs.
kg
1 ½ 1.900 9.00 16.35 27.50 34.50 16.50 9.75 12.50 15.00 15.75 9.25 11.25 10.20 8.50 3.04 6.98 16.7 43.0
40 48.3 228.60 415.29 698 876 419 247 317 381 400 234 285 259.08 215.90 77.21 177.29 7.6 19.5
2 2.375 9.00 13.37 27.50 34.50 16.50 9.75 12.50 15.00 15.75 9.25 11.25 10.20 8.53 3.04 6.98 17.0 43.0
50 60.3 228.60 339.60 698 876 419 247 317 381 400 234 285 259.08 216.66 77.21 177.29 7.7 19.5
76.1 mm 3.000 12.61 16.44 31.75 44.25 21.25 11.25 14.50 18.25 16.75 10.00 9.75 10.65 9.04 3.76 6.69 41.0 65.0
76.1 320.29 417.57 806 1123 539 285 368 463 425 254 247 270.51 229.61 95.50 169.92 18.7 29.5
3 3.500 12.61 16.50 31.75 44.25 21.25 11.25 14.50 18.75 16.75 10.00 9.75 10.65 9.04 3.76 6.69 41.0 65.0
80 88.9 320.29 419.10 806 1123 539 285 368 476 425 254 247 270.51 229.61 95.50 169.92 18.7 29.5
4 4.500 15.03 19.83 32.75 45.50 21.00 10.25 16.00 20.75 15.50 11.25 10.75 13.54 9.56 6.06 8.46 59.0 95.0
100 114.3 381.76 503.68 831 1155 533 260 406 527 393 285 273 343.91 242.82 153.92 214.88 26.7 43.0
165.1 mm 6.500 16.00 22.00 33.00 45.75 20.00 10.25 17.25 22.25 15.75 11.50 11.00 13.46 9.94 6.06 8.38 80.0 116.0
165.1 406.40 558.80 838 1162 508 260 438 565 400 292 279 341.88 252.47 153.92 212.85 36.2 52.6
8 8.625 17.50 23.00 33.00 45.75 18.75 10.00 19.00 24.25 16.00 11.75 11.00 14.80 11.00 6.06 9.72 122.0 158.0
200 219.1 444.50 584.20 838 1162 476 254 482 615 406 298 279 375.92 279.40 153.92 246.88 55.3 71.6
NOTES:
The “A” dimension coupling is not shown in order to clarify dimensional callouts.
Components shown as dotted lines denote optional equipment
1 Measurements denoted with an asterisk take optional equipment into account.
Optional drain connection kit is shown for reference and takeout dimensions.
GG1*
B
*B1
L
J
H
A
D
A1*
C1*
K
F
E
E1*
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Performance:
Hydraulic Friction Loss
The chart below expresses the flow of water at
65ºF/18ºC through a full open valve.
Frictional Resistance
The chart below expresses the frictional resistance of
Victaulic Series 764 FireLock NXT.
Alternate Valve in equivalent feet of straight pipe.
Nominal
Size
Actual
Outside
Diameter
Equivalent
Length of
Pipe
inches
mm
inches
mm
feet
meters
1 ½ 1.900 3.00
40 48.3 0.914
2 2.375 9.00
50 60.3 2.743
76.1 mm 3.000 8.00
76.1 2.438
3 3.500 17.00
80 88.9 5.182
4 4.500 21.00
100 114.3 6.401
165.1 mm 6.500 22.00
165.1 6.711
8 8.625 50.00
200 219.1 15.240
PRESSURE DROP – PSI
FLOW RATE – GPM
800 3,000 8,000
6.0
5.0
4.0
3.0
2.0
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
10 20 30 40 60 80 100 200 300 400 600 1,000 2,000 4,000 6,000 10,000 20,000
3"/80mm
4"/100mm
6"/150mm and 165.1mm
8"/200mm
2½"/65mm and 76.1mm
1½"/40mm 2"/50mm

Operation:
The Series 764 Alternate Wet/Dry Valve contains a
clapper, which has a replaceable rubber seal. The
clapper makes contact with the valve’s seat ring, which
has access holes leading into an intermediate chamber
in the valve. When the valve opens and the clapper
lifts, water enters the intermediate chamber of the valve
through the holes in the seat ring. The water flows
from the intermediate chamber to the alarm line, which
activates the system’s alarms. The alarms continue to
sound until the flow of water stops. When the flow of
water stops, the spring-assisted valve clapper returns to
the closed position. The Series 764 can be configured
for use with wet or dry systems by simply adjusting four
valves.
Operation when used in the dry valve configuration:
When the valve is set up, a direct acting diaphragm
contacts the latch, and the latch holds the clapper in
the closed position. The valve diaphragm is maintained
in the extended position by the water supply pressure
from upstream of the water supply control valve. The
Series 776 Low Pressure Actuator (LPA) maintains the
water pressure in the diaphragm chamber. The actuator
is held closed by the system air pressure. The minimum
required system air pressure is 90 kPa/13 psi. Excess air
pressure above 90 kPa/13 psi will cause a delay in valve
operation. Once the system’s air pressure reduces to the
trip point of 48 kPa/7 psi (i.e. an open sprinkler), the
LPA opens and allows the water supply pressure in the
diaphragm to release. This release allows the latch to
retract and permits the clapper to pivot freely, thus
allowing water into the system and the intermediate
chamber through the holes in the seat ring. The water
flows from the intermediate chamber to the alarm line
and activates the system’s alarms. These alarms continue
to sound until the flow of water stops. The valve acts as
an alarm check valve until the system is back in service
as a dry system, according to the proper procedure.
Operation when used in the wet valve configuration:
When the valve is placed in service, the valve traps water
pressure above the clapper and prevents the reverse
flow of water. Minor pressure surges pass through the
bypass loop without lifting the clapper from its seat. The
swing check valve in the bypass line traps the pressure
above the clapper; this can be observed in the pressure
gauges. The system-side water pressure will always be
equal to or greater than the supply-side water pressure
in the absence of an open sprinkler. When a sustained
flow of water occurs, such as an activated sprinkler or
an open inspector’s test connection, the clapper lifts
from its closed position; this allows water to flow into the
system and the intermediate chamber through the holes
in the seat ring. The water flows from the intermediate
chamber to the alarm line and activates the system’s
alarms. These alarms continue to sound until the flow of
water stops.
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Valve Size Full Open
Nominal
Size
Actual
Outside
Diameter Flow Coefficient
inches
mm
inches
mm
Cv
K
v
1 ½ 1.900 60
40 48.3 52.0
2 2.375 110
50 60.3 95.0
2 ½ 2.875 180
65 73.0 156.0
76.1 mm 3.000 180
76.1 156.0
3 3.500 200
80 88.9 173.0
4 4.500 350
100 114.3 302.8
165.1 mm 6.500 1000
165.1 865.0
8 8.625 1500
200 219.1 1499.1
CVValues:
CVvalues for flow of water at +60°F/+16°C through a fully
open valve are shown in the table below.
Formulas for CVvalues
ΔP = Q2/CV
2
Q = CV× √ΔP
Flow Coefficient Cv
Q (Flow) GPM
ΔP (Pressure Drop) psi
Where:

Material Specifications:
Body: Ductile iron conforming to ASTM A-536, grade
65-45-12. Ductile iron conforming to ASTM A-395,
grade 65-45-15, is available upon special request.
Clapper: Aluminum bronze UNS-C95500
Shaft: Stainless 17-4
Seat O-rings: EPDM, ASTM D2000
Clapper Seal: Peroxide cured EPDM, ASTM D2000
Seat: Brass UNS C83600
Diaphragm: Peroxide cured EPDM with fabric
reinforcement
Bill of Materials
1 Valve Body 12 Cover Plate
2Clapper 13 Cover Plate Gasket
3Clapper Seal 14 Cover Plate Bolts*
4Seal Ring 15 Latch
5Seal Washer 16 Latch Spring
6Seal Retaining Ring 17 Latch Spring Bushing and O-ring (Qty. 2)
7Seal Assembly Bolt 18 Diaphragm
8Bolt Seal 19 Diaphragm Cover
9Clapper Spring 20 Diaphragm Cover Cap Screws (Qty. 8)
10 Clapper Shaft 21 Latch Shaft
11 Clapper Shaft Bushing and O-ring (Qty. 2)
1
12
11
17
17
11
21
20
94
3
18
19
7
5
8
15
16
14
13
210
6
* NOTE: The 1½-inch/48.3-mm and 2-inch/60.3-mm valve sizes contain washers under the heads of
the cover plate bolts.
Exaggerated for clarity
6
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Trim Package Includes:
1 Galvanized components.
2 Series 776 Low-Pressure Actuator – The Series 776
Low-Pressure Actuator is pneumatically actuated
and requires only 13 psi/90 kPa minimum air
pressure, regardless of the system supply pressure.
This actuator allows the system to operate with a low
air or gas pressure of 7 psi/48 kPa.
Request submittal 30.65.
3 Air Feed Manifold.
4 All Required Pipe and Fittings.
5 All Standard Trim Accessories.
6 All Required Gauges.
Optional Trim Package:
1 Black Trim for Foam Systems – If the valve is
intended for use in a foam system, black trim must
be ordered, per NFPA requirements. Specify this
requirement on the order.
• Air Compressor
• Air Dryer
• Air Maintenance Device
• Alarm Panels
• Drain Connection Kit
Air Supply Requirements:
The required air pressure for Series 764 FireLock NXT
Alternate Valves is 13 psi/90 kPa minimum, regardless
of the system supply pressure. Air pressures should be
kept below 18 psi/124 kPa, unless a Series 746-LPA
Dry Accelerator is installed. Systems with air pressures
higher than 18 psi/124 kPa require the addition of a
Series 746-LPA Dry Accelerator.
If multiple Series 764 FireLock NXT Alternate Valves are
installed with a common air supply, isolate the systems
with a spring-loaded, soft-seated ball check valve to
ensure air integrity for each system. Good practice is
to include a ball valve for isolation and service of each
individual system.
Set the air pressure to the required system air pressure.
Air pressure differing from the required system air pres-
sure could reduce system operation response time.
The engineer/system designer is responsible for sizing
the compressor so that the entire system is charged to
the required air pressure within 30 minutes. DO NOT
oversize the compressor to provide more airflow. An
oversized compressor will slow down or possibly prevent
valve operation.
If the compressor fills the system too fast, it may be
necessary to restrict the air supply. Restricting the air
supply will ensure that air being exhausted from an open
sprinkler or manual release valve is not replaced by the
air supply system as fast as it is being exhausted.
Optional Accessories:
• Series 746-LPA Dry Accelerator – The Series
746-LPA Dry Accelerator is required when the
Series 768 Dry Valve is installed in large systems to
improve response time. Request submittal 30.64.
• Series 760 Water Motor Alarm – The Series 760
Water Motor Alarm is a mechanical device that
sounds when a sustained flow of water occurs (such
as with an open sprinkler). Request submittal 30.32.
• Series 75B Supplemental Alarm Device – The
Series 75B Supplemental Alarm Device is designed
to provide a continuous alarm for systems equipped
with a mechanical device. Request submittal 30.33.
• Series 75D Water Column Kit – The Series 75D
Water Column Kit is designed to minimize residual
water in the riser from collecting above the clapper.
Request submittal 30.34.
• Alarm Pressure Switch – Alarm Pressure Switches
are designed to activate electrical alarms and control
panels when a sustained flow of water occurs (such
as with an open sprinkler).
• Air Supervisory Pressure Switch – Air Pressure
Supervisory Switches are used to monitor system
air pressure and are available as low-pressure and
high-pressure sensitivity.
• Air Supply System – The air supply system contains
all components for establishing and maintaining
air in the system. The compressor, low-pressure
alarms, ball valves, and required trim are included in
the air supply system.
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Compressor Sizing:
0
2
4
6
8
10
12
SYSTEM CAPACITY (in gallons)
REQUIRED FLOW RATE (CFM)
COMPRESSOR REQUIREMENTS
550 300
50
800
1050 1300 1550
1800
20 psi/138 kPa
13 psi/90 kPa
Base or Riser-Mounted Compressors:
For base or riser-mounted compressors, the recom-
mended air pressure of 13 psi/90 kPa is the “on” or
“low” pressure setting for the compressor. The “off” or
“high” pressure setting should be 18 psi/124 kPa.
When a base or riser-mounted air compressor supplies
air to a Series 764 FireLock NXT Alternate Valve, it is not
necessary to install the Victaulic Series 757 Regulated
Air Maintenance Trim Assembly (AMTA). In this case,
the airline of the compressor connects to the trim at the
fitting where the Series 757 Regulated AMTA is normally
installed (refer to the applicable trim drawing). If the
compressor is not equipped with a pressure switch, the
Series 757P Air Maintenance Trim Assembly with
Pressure Switch should be installed.
Shop Air or Tank-Mounted Air Compressors:
In the event a compressor becomes inoperative, a
properly sized tank-mounted air compressor provides
the greatest protection for systems.
When shop air or a tank-mounted air compressor is
used, the Series 757 Regulated AMTA must be installed.
The Series 757 Regulated AMTA provides proper air
regulation from the air reservoir to the sprinkler system.
For tank-mounted air compressors, the recommended
air pressure of 13 psi/90 kPa should be used as the
set point for the air regulator. The “on” pressure of the
compressor should be at least 5 psi/34 kPa above the
set point of the air regulator.
8
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Series 757 Regulated Air
Maintenance Trim Assembly: NOTICE
• Victaulic recommends a maximum of two
Series 764 FireLock NXT Alternate Valves per
Series 757 Regulated AMTA
Series 757P Air Maintenance Trim
Assembly With Pressure Switch: NOTICE
• Victaulic recommends a maximum of two
Series 764 FireLock NXT Alternate Valves per
Series 757P AMTA with Pressure Switch
Exaggerated for clarity
Exaggerated for clarity
16
5
4
2
3
Bill of Materials
1 ⁄"/3.2 mm Restrictor
2Slow Fill Ball Valve (Normally Open)
3Air Regulator
4Strainer (100 Mesh)
5Spring-Loaded, Soft-Seated
Ball Check Valve
6Fast Fill Ball Valve (Normally Closed)
3
4
5
2
6
1
Bill of Materials
1 ⁄-inch/3.2-mm Restrictor
2Pressure Switch
3Slow Fill Ball Valve (Normally Open)
4Fast Fill Ball Valve (Normally Closed)
5Strainer (100 Mesh)
6Spring-Loaded, Soft-Seated
Ball Check Valve
9
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Compressor Requirements:
Compressor Requirements and Settings for Series 764
FireLock NXT Alternate Valves Installed with Series
746-LPA Dry Accelerators
Set the air regulator of the Series 757 Regulated AMTA
to 13 psi/90 kPa.
THE SERIES 757P AIR MAINTENANCE TRIM
ASSEMBLY WITH PRESSURE SWITCH MUST NOT BE
USED ON A SERIES 764 FIRELOCK NXT ALTERNATE
VALVE INSTALLED WITH A SERIES 746-LPA DRY
ACCELERATOR.
When a Series 764 FireLock NXT Alternate Valve is
installed with a Series 746-LPA Dry Accelerator, the Series
757 Regulated AMTA must be used. NOTE: The use of
an air regulator with a base or riser-mounted compressor
could cause short cycling, resulting in premature wear of
the compressor.
In the event a compressor becomes inoperative, a
properly sized tank-mounted air compressor provides
the greatest protection for systems installed with a
Series 746-LPA Dry Accelerator. In this situation, air can
be supplied continuously to the sprinkler system for an
extended time period.
NOTE: The Series 757 Regulated AMTA should be used
with a tank-mounted air compressor that supplies air to
a Series 764 FireLock NXT Alternate Valve installed with
a Series 746-LPA Dry Accelerator.
The air regulator of the Series 757 Regulated AMTA is
a relief-type design. Any pressure in the system that is
above the set point of the air regulator will be released.
Therefore, charging the air regulator above the set point
could cause premature operation of a valve installed with
a Series 746-LPA Dry Accelerator.
Settings for Air Supervisory Pressure Switches and
Alarm Pressure Switches
Air supervisory pressure switches are required for dry
systems and must be set according to the following
instructions. NOTE: Switches for Vic-Quick Risers are
pre-set at the factory.
Wire the air supervisory pressure switches to activate a
low-pressure alarm signal. NOTE: In addition, the local
authority having jurisdiction may require a high-pressure
alarm. Contact the local authority having jurisdiction for
this requirement.
Set the air supervisory pressure switches to activate at
2 – 4 psi/14 – 28 kPa below the minimum air pressure
required, but not lower than 10 psi/69 kPa.
Wire the alarm pressure switch to activate a water flow
alarm.
Set the alarm pressure switch to activate on a pressure
rise of 4 – 8 psi/28 – 55 kPa.
Remote System Test Valve Requirements
The remote system test valve (inspector’s test connection)
should contain a UL Listed and/or FM Approved valve
(normally closed), which can be opened to simulate the
operation of a sprinkler.
The remote system test valve (inspector’s test connection)
should be located at the most hydraulically demanding
location in the release system.
NOTE: Multiple restrictions on the remote system test
valve (inspector’s test connection) may slow the air
decay rate and cause the system to respond slower than
required.
The remote system test valve (inspector’s test connection)
should terminate with an orifice equal to the smallest
orifice in the releasing system.
The remote system test valve (inspector’s test connection)
is used to ensure that water reaches the most remote
part of the system within 60 seconds.
10
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Exploded View Drawing –
Trim Components
Series 764 FireLock NXT Alternate Valve
(Optional Accessories Also Shown)
Exaggerated for clarity
5
4
B
Location
2
3
From Water
Supply
To
System
From System
Air Feed
Open – Dry
Closed – Wet
Remove trim from this point up when
installing the optional dry accelerator.
The air gauge (Item 18) must remain in place.
Add a tee to the accelerator to
re-position the air gauge
Remove this plug
when utilizing a
supervisory switch
15
24
9
26
8
23
13
14
16
6
29
30
22
20
22
12
10
27
11
17
22
7
1
Alarm Test Valve
(Normally Closed)
Closed – Dry
Open – Wet
Closed – Dry
Open – Wet
Remove this plug
when utilizing a
supervisory switch
Open – Dry
Closed – Wet
28
21
When eld installation of
a “manual pull station”is
performed, remove this plug
and install necessary ttings.
Open – Dry
Closed – Wet
25
B
To Drip Cup
Location
B
To Drip Cup
Location
B
To Drip Cup
Location
B
To Drip Cup
Location
19
18
14a
14b
Bill of Materials
1Series 764 FireLock NXT Alternate
Wet/Dry Valve
2FireLock Rigid Coupling (Optional/Sold
Separately – Comes Standard when VQR
Assembly is Ordered)
3Water Supply Main Control Valve
(Optional/Sold Separately – Comes
Standard when VQR Assembly is Ordered)
4Drain Swing Check Valve
5Drip Cup with Cap
6Alarm Pressure Switch (Optional/Sold
Separately – Comes Standard when VQR
Assembly is Ordered)
7Series 729 Drip Check Valve
8Diaphragm-Charge-Line Ball Valve
(Lockable – Open/Dry, Closed/Wet)
93-in-1 Strainer/Check/Restrictor
Assembly
10 Series 760 Water Motor Alarm
(Optional/Sold Separately)
11 Alarm Test Ball Valve
12 Diaphragm-Charge-Line Pressure Gauge
(0 – 300 psi/0 – 2068 kPa/0 – 20.7 Bar)
13 Series 749 Auto Drain
14 Series 746-LPA Dry Accelerator
Assembly (Optional/Sold Separately)
15 Series 776 Low-Pressure Actuator
16 Air Manifold
17 Air Supervisory Pressure Switch
(Optional/Sold Separately – Comes
Standard when VQR Assembly is Ordered)
18 Dry System Air Pressure Gauge
(0 – 80 psi/0 – 552 kPa/0 – 5.5 Bar with Retard)
19 Water Supply Main Drain Valve -
Flow Test
20 Water Supply Pressure Gauge
(0 – 300 psi/0 – 2068 kPa/0 – 20.7 Bar)
21 Drain Connection Kit (Optional/Sold
Separately – Comes Standard when VQR
Assembly is Ordered)
22 Gauge Valve
23 System Main Drain Valve
24 Series 748 Ball Check Valve
25 Dry System Air Supply Ball Valve
(Lockable – Open/Dry, Closed/Wet)
26 Wet System Bypass Ball Valve
(Lockable – Closed/Dry, Open/Wet)
27 Dry Check Isolation Ball Valve
(Lockable – Open/Dry, Closed/Wet)
28 Alarm Line Drain Ball Valve
(Lockable – Closed/Dry, Open/Wet)
29 Series 755 Manual Pull Station (Optional/
Sold Separately)
30 Wet System Pressure Gauge
(0 – 300 psi/0 – 2068 kPa/0 – 20.7 Bar)
Note 1
11
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Installation
Reference should always be made to the appropriate Installation, Maintenance, and
Testing Manual included with each shipment of Victaulic products. These manuals are also
available in PDF format on our website at victaulic.com
Warranty
Refer to the Warranty section of the current Price List or contact Victaulic for details.
Note
This product shall be manufactured by Victaulic or to Victaulic specifications. All products
to be installed in accordance with current Victaulic installation/assembly instructions.
Victaulic reserves the right to change product specifications, designs and standard
equipment without notice and without incurring obligations.
Trademarks
Victaulic®and FireLock®are registered trademarks of Victaulic Company.
WARNING
• This product must be installed by an experienced, trained installer, in accordance with
the instructions provided with each valve. These instructions contain important
information.
Failure to follow these instructions may result in serious personal injury, property
damage, or valve leakage.
If you need additional copies of this product literature or the valve installation
instructions, or if you have any questions about the safe installation and use of this
device, contact Victaulic Company, P.O. Box 31, Easton, PA 18044-0031 USA,
Telephone: [phone].
30.83 4630 Rev D Updated 03/2021 © 2021 Victaulic Company. All rights reserved.
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victaulic.com | NXT Alternate Wet/Dry Valve | Series 764 | Publication 30.83