FireLock Alarm Check Valve

TM

Series 751 30.01

Series 751 Standard Trim Series 751 European Trim

1.0 PRODUCT DESCRIPTION

Available Sizes
• 1 ½ – 8"/DN40 – DN200
Pressure Class
• 300 psi/2068 kPa/20 Bar for 1 ½ – 6"/DN40 – DN150 Sizes (See Section 5.0 Performance)
• 232 psi/1600 kPa/16 Bar for 8"/DN200 Size (See Section 5.0 Performance)
Valve Configurations
• Bare
• Pre-trimmed
• Vic-Quick Riser: Pre-trimmed and includes:
• Shut Off Valve (1 ½"/DN40: Series 728 Ball Valve, 2" – 8"/DN50 – DN200: Series 705 FireLock Butterfly Valve)
• Drain Connection Kit
• Alarm Pressure Switch(s)
• Fire-Pac Series 745 (refer to Victaulic publication 30.23)
Pipe Preparation
• Victaulic Original Groove System (OGS)
Application/Media
• For use on fire protection systems only.

2.0 CERTIFICATION/LISTINGS

104e/01 2809 1725

ALWAYS REFER TO ANY NOTIFICATIONS AT THE END OF THIS DOCUMENT REGARDING PRODUCT INSTALLATION, MAINTENANCE OR SUPPORT.

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3.0 SPECIFICATIONS – MATERIAL

Bill of Materials: Base Valve
Body: Ductile iron, ASTM A-536 Grade 65-45-12
Clapper: Aluminum bronze UNS-C95500
Shaft: Stainless steel 17-4PH
Clapper Seal: EPDM
Seat O-Rings: Nitrile
Clapper Spring: Stainless steel (302 Series)
Washers: PTFE
Cover Plate Bolts: Carbon steel, zinc plated
Cover Plate Gasket: Nitrile
Seal Plate: Aluminum Bronze (UNS-C95400)
4 - 6-inch/
DN100 - DN150 Sizes

2
9
1½ - 3-inch/DN40 - DN80
3
and 8-inch/DN200 Sizes
2 5
9
6
3
7

5
6 4
7
10 13
11 8
1 12

14

Item Description Item Description

1 Valve Body 8 Clapper Spring
2 Clapper 9 Washer
3 Clapper Seal 10 Shaft
4 Seal Ring 11 Clapper Shaft Retaining Plug
5 Seal Washer* 12 Cover Plate
6 Seal Plate 13 Cover Plate Gasket
7 Screw, Self Sealing 14 Cover Plate Bolts
*Item 5, Seal Washer, is not included with the clapper assembly for 1 1/2 – 2"/DN40 – DN50 valve sizes.

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3.1 SPECIFICATIONS – MATERIAL

Standard Trim with Base Valve: cULus, FM, CCC version
Series 751 FireLock Alarm Check Valve

Gray shaded areas identify components that are standard when the VQR is ordered.
11
7 Orange shaded areas identify components that are optional equipment.

To Water Motor Alarm or

Optional Series 752V
Retard Vent Kit
Optional Location
for Item 8
12

6
Normally Open 13
(Lockable)
Pipe to Open Drain To System
9
14 10
Optional Series 752V
Retard Vent Kit
Normally Closed
(Lockable)

1
5 4
To Drain

3
From
Water Supply

To Drain

Item Description Item Description

1 Series 751 FireLock Alarm Check Valve 8 Alarm Pressure Switch (Optional/Sold Separately)
2 FireLock Rigid Coupling (Optional/Sold Separately) 9 Alarm Line Ball Valve (Normally Open)
3 Water Supply Main Control Valve (Optional/Sold Separately) 10 Alarm Test Line Ball Valve (Normally Closed)
System Pressure Gauge/Gauge Valve Assembly
4 System Main Drain Valve 11
(0-300 psi/0-2068 kPa)
Water Supply Pressure Gauge/Gauge Valve Assembly
5 Alarm Line Drain Restrictor (1⁄16-inch) 12
(0-300 psi/0-2068 kPa)
6 Series 752 Retard Chamber Assembly (Optional/Sold Separately) 13 Swing Check Valve
7 Series 760 Water Motor Alarm Assembly (Optional/Sold Separately) 14 Series 752V Retard Vent Kit1 (Optional/Sold Separately)
1  he 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
T
752V Retard Vent Kit is required if multiple valves are tied into one water motor alarm and a check valve isolates each line.

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3.2 SPECIFICATIONS – MATERIAL

Standard Trim with Base Valve: cULus, FM, CCC version

Series 751 FireLock Alarm Check Valve Trim for Use with Excess Pressure Pump

7 Gray shaded areas identify components that are standard when the VQR is ordered.
Orange shaded areas identify components that are optional equipment.

To Water Motor Alarm or

Optional Series 752V
Retard Vent Kit
12
Optional Location From Excess
for Item 8 Pressure Pump 11 14
Normally Open
To Excess (Lockable)
Pressure Pump 16 13
Normally Open Normally Open
6 (Lockable) (Lockable)
Pipe to Open Drain To System

9
17 10 11
Optional Series 752V Normally Open
Retard Vent Kit (Lockable) 15
Normally Closed
(Lockable)

1
4
5
To Drain

3
From
Water Supply

To Drain

Item Description Item Description

1 Series 751 FireLock Alarm Check Valve 10 Alarm Test Line Ball Valve (Normally Closed)
FireLock Rigid Coupling (Optional/Sold Separately –
2 11 Excess Pressure Pump Isolation Ball Valve (Normally Open)
Comes Standard when VQR Assembly is Ordered)
Water Supply Main Control Valve (Optional/Sold Separately – Excess Pressure Pump Pressure Switch
3 12
Comes Standard when VQR Assembly is Ordered) (Sold Separately/Not Provided by Victaulic)
Excess Pressure Pump Pressure Switch Isolation Ball Valve
4 System Main Drain Valve 13
(Normally Open)

5 Alarm Line Drain Restrictor (1⁄16-inch) 14 System Pressure Gauge (0-300 psi/0-2068 kPa)

6 Series 752 Retard Chamber Assembly (Optional/Sold Separately) 15 Water Supply Pressure Gauge (0-300 psi/0-2068 kPa)
7 Series 760 Water Motor Alarm Assembly (Optional/Sold Separately) 16 Swing Check Valve
8 Alarm Pressure Switch (Optional/Sold Separately) 17 Series 752V Retard Vent Kit1 (Optional/Sold Separately)
9 Alarm Line Ball Valve (Normally Open)
1  he 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
T
752V Retard Vent Kit is required if multiple valves are tied into one water motor alarm and a check valve isolates each line.

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3.3 SPECIFICATIONS – MATERIAL

Standard Trim Package Optional Accessories (specify choice):
Series 752 Retard Chamber – Required when the Series 751 FireLock Alarm Check Valve is installed in a variable
pressure installation in order to reduce the possibility of false alarms. (Refer to 30.01).
Series 752V Retard Vent Kit – Required when an electric pressure switch is installed on the retard chamber
without a water motor alarm.
Series 760 Water Motor Alarm – The Series 751 FireLock Alarm Check Valve is designed to activate a mechanical
alarm when a sustained flow of water (such as an open sprinkler) causes the alarm check’s clapper to lift from its
seat. (Refer to 30.32).
Alarm pressure switch – The Series 751 FireLock Alarm Check Valve is designed to allow the installation of
pressure switches to activate electric alarms and control panels when a sustained flow of water (such as an open
sprinkler) causes the alarm check’s clapper to lift from its seat.
Waterflow Detectors – Waterflow detectors are available for installation on the riser.
Trim kit available for configuration with excess pressure pump.

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3.4 SPECIFICATIONS – MATERIAL

Bill of Materials: European Base Valve
Series 751 FireLock Alarm Check Valve
1 8-inch/DN200 Valve Size Only
4

6 12

13

8
7

5 9
4

3 10

2 6
11

8
All Other Valve Sizes

Item Description Item Description

1 Valve Body 8 Screw, Self Sealing
2 Clapper Shaft Retaining Bushing 9 Cover Plate Gasket
3 Shaft 10 Cover Plate
4 Clapper 11 Cover Plate Bolt
5 Clapper Spring 12 Seal Ring
6 Clapper Seal 13 Seal Washer
7 Seal Plate

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3.5 SPECIFICATIONS – MATERIAL

European Trim with European Base Valve: VdS, CE, UKCA, FM, EAC, LPCB, SBSC, FG
Series 751 FireLock Alarm Check Valve with Vertical Trim
FG
12
12
14
Gray shaded areas identify components that are standard when the VQR is ordered.
Orange shaded areas identify components that are optional equipment.
14 14a
All non-shaded components are standard for their respective trim configurations.

14a
11
SBSC
VdS, CE, UKCA, FM, EAC To Drain
12
15

14
LPCB 12
10
To Optional Water Motor To Drain
15 Alarm or Series 752V 11
Retard Vent Kit To Drain
14a

10
To Optional Water Motor 7
Alarm or Series 752V
Retard Vent Kit
11 Pipe to Open Drain
To Drain
Normally Open
(Lockable) 13 4
12 16
Optional Series 752V
Retard Vent Kit
10
5
Pipe to Open Drain 13 To Drain
Normally
Open
To System 6
16 (Lockable)
4
Optional Series 752V
Retard Vent Kit

10 1
–OR– 9 8
To Drain
2

3
17 From
Water
Supply

To Drain

Item Description Item Description

1 Series 751 FireLock European Alarm Check Valve 10 Restricted Orifice/Alarm Line Drain
2 FireLock Rigid Coupling1 11 Series 752 VdS Retarding Chamber
3 Water Supply Main Control Valve1 12 Alarm Pressure Switch
4 Gauge Valve 13 Alarm Line Ball Valve
5 Water Supply Pressure Gauge 14 Alarm Line Monitoring Limit Switch Assembly
6 Swing Check Valve 14a Alarm Line Monitoring Ball Valve
7 System Pressure Gauge 15 Series 760 Water Motor Alarm
8 System Test Valve 16 Series 752V Retard Vent Kit2
9 System Main Drain Valve 17 Drain Connection Kit3
1 Items 2 and 3 are provided standard when the SBSC and FG trim are ordered. For the SBSC and FG trim, an additional coupling and water supply main control
valve are available as an option for installation above the Series 751 FireLock European Alarm Check Valve (system side).
2 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 isolates each line.
3 Item 17 can be configured with a Victaulic FireLock No. 101 Installation-Ready™ 90° Elbow or two FireLock Rigid Couplings and a 90° Elbow.

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3.6 SPECIFICATIONS – MATERIAL

European Trim with Base Valve: APSAD
Series 751 FireLock Alarm Check Valve with Vertical Trim
14

12
To Optional Water Motor
Alarm or Series 752V
Normally
Open 10 Retard Vent Kit

11

Pipe to Open Drain

Gray shaded areas identify components that are
standard when the VQR is ordered.
15
Orange shaded areas identify components that are Optional Series 752V
optional equipment. Retard Vent Kit

Normally Open
(Lockable)
13

To Drain To System
9
8
7

–OR–
1 4

16 2

6
3

From
5
Water
To Drain Supply

Item Description Item Description

1 Series 751 FireLock Alarm Check Valve1 9 System Main Drain Valve
2 FireLock Rigid Coupling 10 Alarm Line Water Motor Alarm Ball Valve (Normally Open)
3 Water Supply Main Control Valve 11 Series 752 VdS Retarding Chamber
4 Gauge Valve 12 Alarm Pressure Switch
5 Water Supply Pressure Gauge 13 Alarm Line Auxiliary Test Ball Valve (Normally Closed)
6 Swing Check Valve 14 Series 760 Water Motor Alarm
7 System Pressure Gauge 15 Series 752V Retarding Vent Kit2
8 System Test Valve 16 Drain Connection Kit
1 The APSAD version uses the base valve configuration. Refer to page 2 for an exploded view of components.
2  he 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
T
Retard Vent Kit is required if multiple valves are tied into one water motor alarm and a check valve isolates each line.

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3.7 SPECIFICATIONS – MATERIAL

European Trim Package Optional Accessories (specify choice):
Series 752 Retard Chamber – Required when the Series 751 FireLock Alarm Check Valve is installed in a variable
pressure installation in order to reduce the possibility of false alarms. (Refer to 30.01).
Series 752V Retard Vent Kit – Required when an electric pressure switch is installed on the retard chamber
without a water motor alarm.
Series 760 Water Motor Alarm – The Series 751 FireLock Alarm Check Valve is designed to activate a mechanical
alarm when a sustained flow of water (such as an open sprinkler) causes the alarm check’s clapper to lift from its
seat. (Refer to 30.32).
Waterflow Detectors – Waterflow detectors are available for installation on the riser.

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4.0 DIMENSIONS
Standard Trim Dimensions with Base Valve: cULus, FM, CCC Version
Standard trim and trim for use with excess pressure pump (without drain connection kit and water supply main control
valve options).

B D1
A
B1
D

F G

C E
Full open

NOTES
• The "A" dimension is the actual takeout dimension of the valve body.
• For systems with the optional Series 752 Retard Chamber Assembly, add 12 inches/305 mm to the "B" dimension to account for the additional height.

Size Dimensions Approx. Weight Each

Actual
Outside Without With
Nominal Diameter A B B1 C D D1 E F G Trim Trim
inches inches inches inches inches inches inches inches inches inches inches lbs lbs
DN mm mm mm mm mm mm mm mm mm mm kg kg
1½ 1.900 9.00 10.75 17.88 10.00 11.25 8.00 9.88 6.38 21.00 13.0 31.0
DN40 48.3 229 271 453 254 284 201 250 160 534 5.9 14.0
2 2.375 9.00 10.75 17.88 10.00 11.38 8.13 9.88 6.38 21.00 13.0 31.0
DN50 60.3 229 271 453 254 287 204 250 160 534 5.9 14.0
2½ 2.875 12.63 12.50 19.25 11.25 11.50 7.13 11.00 7.13 22.88 32.0 53.0
73.0 321 317 488 285 290 179 279 178 579 14.5 24.0
3.000 12.63 12.50 19.25 11.25 11.50 7.13 11.00 7.13 22.88 33.0 54.0
DN65 76.1 321 317 488 285 290 179 279 178 579 15.0 24.5
3 3.500 12.63 12.50 19.25 11.25 11.50 7.13 11.00 7.13 22.88 33.0 54.0
DN80 88.9 321 317 488 285 290 179 279 178 579 15.0 24.5
4 4.500 15.13 18.00 22.25 14.13 12.38 7.50 12.63 6.38 26.75 55.0 77.0
DN100 114.3 382 455 563 358 314 190 321 160 678 25.0 35.0
6.500 16.00 18.63 22.75 14.50 14.38 8.75 13.38 6.38 27.88 74.0 96.0
165.1 407 473 575 368 363 222 340 160 707 33.5 43.5
6 6.625 16.00 18.63 22.75 14.50 14.38 8.75 13.38 6.38 27.88 77.0 99.0
DN150 168.3 407 473 575 368 363 222 340 160 707 35.0 45.0
8 8.625 17.50 18.50 22.25 15.88 16.88 9.75 14.25 6.38 30.13 120.0 140.0
DN200 219.1 445 468 564 403 429 248 362 160 764 54.5 63.5

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4.0 DIMENSIONS (CONTINUED)

Standard Trim Dimensions with Base Valve: cULus, FM, CCC Version
Standard trim and trim for use with excess pressure pump (with drain connection kit and water supply main control
valve options).

A 4-inch/DN100 Series 751 FireLock Alarm Check Valve with optional drain connection kit and water supply main
control valve is shown below.

D1
A
A1 D
B

C E
Full open

NOTES
• The "A" dimension is the actual takeout dimension of the valve body.
• The "A1" dimension is the actual takeout dimension of the valve body with optional water supply main control valve.
• For systems with the optional Series 752 Retard Chamber Assembly, add 12 inches/305 mm to the ·"B" dimension to account for the additional height. The
"D" and ·"D1" dimensions are not fixed measurements. The drip cup of the drain connection kit option can be rotated to provide more clearance at the back
of the trim.
• Components shown as dotted lines denote optional equipment.
• The recommended drain connection kit option is shown for reference and takeout dimensions.

Size Dimensions Approx. Weight Each

Actual
Outside Without With
Nominal Diameter A A1 B C D D1 E F G Trim Trim
inches inches inches inches inches inches inches inches inches inches inches lbs lbs
DN mm mm mm mm mm mm mm mm mm mm kg kg
1½ 1.900 9.00 16.38 21.88 10.00 14.13 9.00 9.88 4.38 21.00 13.0 46.0
DN40 48.3 229 416 555 254 359 227 250 109 534 5.9 21.0
2 2.375 9.00 13.63 21.88 10.00 15.63 9.00 9.88 4.75 21.00 13.0 46.0
DN50 60.3 229 343 555 254 394 227 250 120 534 5.9 21.0
2½ 2.875 12.63 16.63 25.88 11.25 15.63 8.38 11.00 6.25 22.88 32.0 75.0
73.0 321 420 657 285 395 211 279 158 579 14.5 34.0
3.000 12.63 16.63 25.88 11.25 15.63 8.38 11.00 6.25 22.88 33.0 77.0
DN65 76.1 321 420 657 285 395 211 279 158 579 15.0 35.0
3 3.500 12.63 16.63 25.88 11.25 15.63 8.38 11.00 6.25 22.88 33.0 77.0
DN80 88.9 321 420 657 285 395 211 279 158 579 15.0 35.0
4 4.500 15.13 20.00 28.00 14.13 17.50 8.63 12.63 7.13 26.75 55.0 110.0
DN100 114.3 382 507 710 358 443 219 321 179 678 25.0 50.0
6.500 16.00 22.13 27.50 14.50 19.50 8.63 13.38 7.50 27.88 74.0 145.0
165.1 407 562 696 368 495 219 340 189 707 33.5 66.0
6 6.625 16.00 22.13 27.50 14.50 19.50 8.63 13.38 7.50 27.88 77.0 145.0
DN150 168.3 407 562 696 368 495 219 340 189 707 35.0 66.0
8 8.625 17.50 23.13 27.50 15.88 22.13 10.13 14.25 8.88 30.13 120.0 210.0
DN200 219.1 445 585 696 403 562 255 362 224 764 54.5 95.5

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4.0 DIMENSIONS (CONTINUED)

European Trim Dimensions with European Base Valve: VdS, CE, UKCA, FM, EAC Version

B1

A
B
A1

L H M

J I C D
Full open
E F

Size Dimensions Weight

Actual
Outside Approx.
Nominal Diameter A2 A1 B B1 C D E F G H I J K L M Each
inches inches inches inches inches inches inches inches inches inches inches inches inches inches inches inches inches lbs
DN mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm kg
3 3.500 12.61 16.51 17.22 28.88 5.50 7.71 7.47 10.21 9.80 6.72 9.76 11.41 0.67 6.21 5.11 79.0
DN80 88.9 321 420 438 734 140 196 190 260 249 171 248 290 18 158 130 36.0
4 4.500 15.03 19.94 22.53 30.50 6.31 8.15 8.80 10.65 5.45 7.21 10.29 14.08 2.60 7.04 5.38 105.0
DN100 114.3 382 507 573 775 161 208 224 271 139 184 262 358 67 179 137 47.5
6 6.625 16.00 22.12 24.74 32.25 8.22 9.39 10.85 11.89 2.93 7.59 10.67 14.46 2.54 7.42 5.38 140.0
DN150 168.3 407 562 629 820 209 239 276 303 75 193 272 368 65 189 137 63.5
8 8.625 17.50 23.02 24.09 31.08 9.47 10.40 12.07 12.90 4.18 9.33 12.41 15.83 0.83 8.79 5.88 210.0
DN200 219.1 445 585 612 790 241 265 307 328 107 237 316 403 22 224 150 95.5
2 The "A" dimension is the measurement from the top of the valve body to the bottom of the valve body (takeout dimension).

NOTE
• Overall height "B" is the greatest height if the optional Series 752 VdS Retarding Chamber Assembly is not installed.

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4.0 DIMENSIONS (CONTINUED)

European Trim Dimensions with European Base Valve: LPCB

B1
A
B
A1

L H M
C D
J I
Full open
E F

Size Dimensions Weight

Actual
Outside Approx.
Nominal Diameter A2 A1 B B1 C D E F G H I J K L M Each
inches inches inches inches inches inches inches inches inches inches inches inches inches inches inches inches inches lbs
DN mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm kg
3 3.500 12.61 16.51 17.22 27.87 5.50 8.36 7.47 10.86 9.80 6.72 9.76 11.41 0.67 6.21 5.11 93.0
DN80 88.9 321 420 438 708 140 213 190 276 249 171 248 290 18 158 130 42.0
4 4.500 15.03 19.94 22.53 29.49 6.31 8.80 8.80 11.67 5.45 7.21 10.29 14.08 2.60 7.04 5.38 125.0
DN100 114.3 382 507 573 749 161 224 224 297 139 184 262 358 67 179 137 56.5
6.500 16.00 22.12 24.74 31.24 8.22 10.04 10.85 12.54 2.93 7.59 10.67 14.46 2.54 7.42 5.38 165.0
165.1 407 562 629 794 209 256 276 319 75 193 272 368 65 189 137 75.0
8 8.625 17.50 23.02 24.09 30.79 9.47 11.04 12.07 13.56 4.18 9.33 12.41 15.83 0.83 8.79 5.88 225.0
DN200 219.1 445 585 612 783 241 281 307 345 107 237 316 403 22 224 150 102.0
2 The "A" dimension is the measurement from the top of the valve body to the bottom of the valve body (takeout dimension).

NOTE
• Overall height "B" is the greatest height if the optional Series 752 VdS Retarding Chamber Assembly is not installed.

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4.0 DIMENSIONS (CONTINUED)

European Trim Dimensions with European Base Valve: FG

B1

A
B
A1

M
L H
C D
J I E F
Full open

Size Dimensions Weight

Actual
Outside Approx.
Nominal Diameter A2 A1 B B1 C D E F G H I J K L M Each
inches inches inches inches inches inches inches inches inches inches inches inches inches inches inches inches inches lbs
DN mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm kg
3 3.500 12.61 16.51 17.22 34.20 5.50 7.36 7.47 9.86 9.80 6.72 9.76 11.41 0.67 6.21 5.11 96.0
DN80 88.9 321 420 438 869 140 188 190 251 249 171 248 290 18 158 130 43.5
4 4.500 15.03 19.94 22.53 35.81 6.31 7.80 8.80 10.31 5.45 7.21 10.29 14.08 2.60 7.04 5.38 130.0
DN100 114.3 382 507 573 910 161 199 224 262 139 184 262 358 67 179 137 59.0
6 6.625 16.00 22.12 24.74 37.57 8.22 10.04 10.85 11.54 2.93 7.59 10.67 14.46 2.54 7.42 5.38 165.0
DN150 168.3 407 562 629 955 209 256 276 294 75 193 272 368 65 189 137 75.0
8 8.625 17.50 23.02 24.09 37.12 9.47 10.05 12.07 12.55 4.18 9.33 12.41 15.83 0.83 8.79 5.88 230.0
DN200 219.1 445 585 612 943 241 256 307 319 107 237 316 403 22 224 150 104.5
2 The "A" dimension is the measurement from the top of the valve body to the bottom of the valve body (takeout dimension).

NOTE
• For FG trim, an additional coupling and water supply main control valve are available as an option for installation above the Series 751 FireLock European
Alarm Check Valve (system side). The addition of this option will not affect the B1 dimension shown.

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4.0 DIMENSIONS (CONTINUED)

European Trim Dimensions with European Base Valve: SBSC

B1
A
B
A1

L H M

J I C D
Full open
E F

Size Dimensions Weight

Actual
Outside Approx.
Nominal Diameter A2 A1 B B1 C D E F G H I J K L M Each
inches inches inches inches inches inches inches inches inches inches inches inches inches inches inches inches inches lbs
DN mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm kg
3 3.500 12.61 16.51 17.22 25.19 5.50 6.36 7.47 9.33 9.80 6.72 9.76 11.41 6.50 6.21 5.11 85.0
DN80 88.9 321 420 438 640 140 162 190 237 249 171 248 290 165 158 130 38.5
4 4.500 15.03 19.94 22.53 26.81 6.31 6.80 8.80 9.72 5.45 7.21 10.29 14.08 4.72 7.04 5.38 115.0
DN100 114.3 382 507 573 681 161 173 224 247 139 184 262 358 120 179 137 52.0
6 6.625 16.00 22.12 24.74 28.56 8.22 8.04 10.85 9.72 2.93 7.59 10.67 14.46 4.22 7.42 5.38 155.0
DN150 168.3 407 562 629 726 209 205 276 247 75 193 272 368 108 189 137 70.5
8 8.625 17.50 23.02 24.09 28.12 9.47 9.05 12.07 10.22 4.18 9.33 12.41 15.83 2.71 8.79 5.88 220.0
DN200 219.1 445 585 612 715 241 230 307 260 107 237 316 403 69 224 150 100.0
2 The "A" dimension is the measurement from the top of the valve body to the bottom of the valve body (takeout dimension).

NOTE
• For SBSC trim, an additional coupling and water supply main control valve are available as an option for installation above the Series 751 FireLock European
Alarm Check Valve (system side). The addition of this option will not affect the B1 dimension shown.

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4.0 DIMENSIONS (CONTINUED)

European Trim Dimensions with Base Valve: APSAD

B1

A
B
A1

L H M
J I
C D
Full Open
E F

Size Dimensions Weight

Actual
Outside Approx.
Nominal Diameter A2 A1 B B1 C D E F G H I J K L M Each
inches inches inches inches inches inches inches inches inches inches inches inches inches inches inches inches inches lbs
DN mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm kg
3 3.500 12.61 16.51 16.50 27.50 5.50 7.75 10.38 14.38 9.80 6.75 9.25 11.41 - 6.21 5.11 91.0
DN80 88.9 321 420 417 698 140 195 262 363 249 170 233 290 - 158 130 41.5
4 4.500 15.03 19.94 21.63 29.13 6.31 9.00 11.13 15.50 5.45 7.25 10.13 14.08 1.75 7.04 5.38 125.0
DN100 114.3 382 507 547 738 161 226 281 393 139 184 257 358 43 179 137 56.5
6 6.625 16.00 22.12 24.13 30.75 8.22 9.13 13.13 15.75 2.93 7.63 10.50 14.46 2.00 7.42 5.38 165.0
DN150 168.3 407 562 611 781 209 232 333 400 75 193 267 368 51 189 137 75.0
8 8.625 17.50 23.02 23.38 30.25 9.47 10.13 14.38 16.75 4.18 9.38 12.25 15.83 0.38 8.79 5.88 225.0
DN200 219.1 445 585 592 766 241 257 364 425 107 237 311 403 7 224 150 102.0
2 The "A" dimension is the measurement from the top of the valve body to the bottom of the valve body (takeout dimension).

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5.0 PERFORMANCE
Frictional Resistance
The chart below expresses the frictional resistance of Series 751 FireLock Alarm Check Valve in equivalent feet or
meters of straight pipe.
Size Equivalent Length of Pipe
VdS, CE, UKCA, FM,
Actual Outside EAC, LPCB, SBSC,
Nominal Diameter cULus FM CCC FG (European Trim) APSAD
inches inches feet feet meters meters meters
DN DN meters meters feet feet feet
1½ 1.900 3.00 3.00 – – –
DN40 48.3 0.910 0.910 – – –
2 2.875 9.00 9.00 – – –
DN50 60.3 2.740 2.740 – – –
2½ 2.875 8.00 8.00 – – –
73.0 2.438 2.438 – – –
3.000 8.00 8.00 – – –
DN65 76.1 2.438 2.438 – – –
3 3.500 17.00 17.00 5.182 5.182 5.182
DN80 88.9 5.182 5.182 17.00 17.00 17.00
4 4.500 21.00 21.00 6.401 6.401 6.401
DN100 114.3 6.401 6.401 21.00 21.00 21.00
6.500 22.00 22.00 6.706 6.706 –
165.1 6.706 6.706 22.00 22.00 –
6 6.625 22.00 22.00 6.706 6.706 6.706
DN150 168.3 6.706 6.706 22.00 22.00 22.00
8 8.625 50.00 50.00 15.240 15.240 15.240
DN200 219.1 15.240 15.240 50.00 50.00 50.00

Maximum Working Pressure

Size Maximum Working Pressure

VdS, CE, UKCA, FM,
EAC, LPCB, SBSC,
Actual Outside cULus FM CCC FG (European Trim) APSAD
Nominal Diameter psi psi psi psi psi
inches inches kPa kPa kPa kPa kPa
DN DN Bar Bar Bar Bar Bar
1.900 300 300
1½
48.3 2068 2068 – – –
DN40
21 21
2.375 300 300
2
60.3 2068 2068 – – –
DN50
21 21
2.875 300 300
2½ 73.0 2068 2068 – – –
21 21
3.000 300 300
DN65 76.1 2068 2068 – – –
21 21
3.500 300 300 232 232 300
3
88.9 2068 2068 1600 1600 2068
DN80
21 21 16 16 21
4.500 300 300 232 232 300
4 114.3 2068 2068 1600 1600 2068
DN100
21 21 16 16 21
6.500 300 300 232 232
165.1 2068 2068 1600 1600 –
21 21 16 16
6.625 300 300 232 232 300
6
168.3 2068 2068 1600 1600 2068
DN150
21 21 16 16 21
8.625 232 232 232 232 232
8
219.1 1600 1600 1600 1600 1600
DN200
16 16 16 16 16

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6.0 NOTIFICATIONS

WARNING
• Read and understand all instructions before attempting to install any Victaulic
products.
• Always verify that the piping system has been completely depressurized and
drained immediately prior to installation, removal, adjustment, or maintenance of
any Victaulic products.
• Wear safety glasses, hardhat, and foot protection.
Failure to follow these instructions could result in death or serious personal injury
and property damage.
• These products shall be used only in fire protection systems that are designed and installed in accordance with current, applicable
National Fire Protection Association (NFPA) standards, or equivalent local and national fire protection standards, and in accordance
with applicable building and fire codes. These standards and codes contain important information regarding protection of systems
from freezing temperatures, corrosion, mechanical damage, etc.
• The installer shall understand the use of this product and why it was specified for the particular application.
• The installer shall understand common industry safety standards and potential consequences of improper product installation.
• It is the system designer's responsibility to verify suitability of materials for use with the intended fluid media within the piping system
and external environment.
• The material specifier shall evaluate the effect of chemical composition, pH level, operating temperature, chloride level, oxygen level,
and flow rate on materials to confirm system life will be acceptable for the intended service.
Failure to follow installation requirements and local and national codes and standards could compromise system integrity or cause
system failure, resulting in death or serious personal injury and property damage.

7.0 REFERENCES
10.64: Style 009V, 009N, and 109 FireLock™ Installation-Ready™ Rigid Couplings
10.81: Firelock™ Butterfly Valve with Weatherproof Actuator Series 705
30.31: Firelock™ Retard Chamber Series 752
30.32: Firelock™ Water Motor Alarm Series 760
I-751: Firelock™ Alarm Check Valve Series 751 Installation, Maintenance, and Testing ManuaI
I-751.PST: Firelock™ Alarm Check Valve Series 751 Installation Poster
I-751.Europe: Firelock™ European Alarm Check Valve Stations Series 751 Installation, Maintenance, and Testing Manual
I-751-VDS-ADD: Firelock™ European Alarm Check Valve Station (VDS) Series 751 Wall Chart for Placing the System in Service
I-751.APSAD: Firelock™ Alarm Check Valve Stations Series 751 Installation, Maintenance, and Testing Manual
I-751/APSAD.PST: Firelock™ Alarm Check Valve Stations Series 751 Wall Chart for Placing the System in Service
I-760: Firelock™ Water Motor Alarm Series 760 Installation Manual

User Responsibility for Product Selection and Suitability Intellectual Property Rights
Each user bears final responsibility for determining the suitability of Victaulic products No statement concerning the use of any material, product, service, or design is
for their end-use application, in accordance with industry standards, project  specifica­ intended, or should be construed, to grant any license under any patent or other
tions, and Victaulic’s published performance, maintenance, and safety data, as well intellectual property right of Victaulic or any of its affiliates, or as a recommendation
as all warnings and installation instructions. Nothing in this or any other document, for the use of such material, product, service, or design in the infringement of any
nor any verbal recommendation, advice, or opinion from any Victaulic employee, shall patent or other intellectual property right. The terms “Patented” or “Patent Pending”
be deemed to alter, vary, supersede, or waive any provision of Victaulic Company’s refer to design or utility patents or patent applications for articles and/or methods of
standard conditions of sale, warranty, installation instructions, or this disclaimer. use in the United States and/or other countries. Victaulic and all other Victaulic marks
are the trademarks or registered trademarks of Victaulic Company, and/or its affiliated
Installation entities, in the U.S. and/or other countries.
Always refer to and follow the Victaulic Installation Handbook or installation
instructions for the product you are installing. Handbooks are included with each Note
shipment of Victaulic products, providing complete installation and assembly data, All products bearing a Victaulic trademark are manufactured by Victaulic or to
and are available in PDF format on our website at victaulic.com. Victaulic specifications. All products are to be installed only in accordance with the
applicable Victaulic installation instructions. Victaulic reserves the right to change
Warranty product specifications, designs and standard equipment without notice and without
Refer to the Warranty section of the current Price List or contact Victaulic for details. incurring obligations.

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