Flomatic PVB 1 Specification

Pressure Vacuum Breaker Specification Submittal Sheet

Model PVB (3/4” & 1”)

FEATURES:
Sizes: □¾” □1”

Max. working pressure: 150 PSI (1200 kPa)
Max. working temperature: 140

Hydrostatic Test Pressure: 300 PSI (2400 kPa)

MATERIALS:

Valve Body: Bronze (ASTM B584)
Access Cover: ABS
Polymers: Noryl
Elastomers: Silicone / Buna-n
Springs: Stainless Steel

TM,

NSF Listed

°F (60°C)

OPTIONS:

 B9510 or B9511 – less ball valves

 UE – with union end ball valves

STANDARDS COMPLIANCE:

®

ASSE

Approved by the Foundation for Cross-Connection
Control and Hydraulic Research at the University of

Southern California

FLOMATIC SPECIFICATIONS:

Designed for installation on potable water lines to
prevent against contaminated water backsiphonage into
the potable water supply. Assembly shall provide
protection against backsiphonage where a potential
health hazard exist.

Listed 1020

Size A B C D E Width Wgt w/ BV Wgt no BV

Inch mm

¾ 20 B9500 6 152

1 25 B9501 6-1/2 165 7-1/8 181 5-1/16 129 5 127 3 76 4 102 4.25 2 1.5 .7

Part #

Inch mm Inch mm Inch mm Inch mm Inch mm Inch mm lbs kg lbs kg

6-9/16

167 4-5/16 110 4-1/2 114 3 76 3-7/8 98 3.25 1.5 1.5 .7

Danfoss Flomatic

Danfoss Flomatic Corp, 15 Pruyn’s Island, Glens Falls, New York 12801

Phone: [phone] Fax: [phone] www.flomatic.com

November 22,2004 Rev. 3

Specification Sheet PVB

Pressure Vacuum Breaker Specification Submittal Sheet

Model PVB (3/4” & 1”)

FLOW CHARACTERISTICS

a

P

k

10

69

S
S
O

48 7

L
E

R

41 6

U
S
S

35

E
R
P

FLOW CURVES w/ BALL VALVES

i

s

p

962

855

5

428

321

214

17

0 10 60 gpm20

3/4" (20 mm)

30 40 50

FLOW RATE

1" (25 mm)

2.52.63 1.26 1.89 3.79 lps3.15

▲ RATED FLOW

(Established by Approval Agencies)

TYPICAL INSTALLATION

Model PVB Pressure Vacuum Breaker should be
installed with adequate clearance and easy
accessibility for testing and maintenance and must be
protected from freezing. Local codes shall govern
installation requirements. Unless otherwise specified,
the installation shall be in accordance with the
manufacturer’s instructions and the latest edition of the
Uniform Plumbing Code. The installation shall be
made so that no part of the unit can be submerged.
Thermal water expansion can cause excessive
pressure. Excessive pressure situations should be
eliminated to avoid possible damage to the system
and assembly.

Capacity thru Schedule 40 Pipe (GPM)

Pipe size 5 ft/sec 7.5 ft/sec 10 ft/sec 15 ft/sec

¾”

1”

8 12 17 25

13 20 27 40

WARRANTY: Danfoss Flomatic valves are guaranteed against defects of materials or workmanship when used for

the services recommended. If in any recommended service, a defect develops due to material or workmanship, and
the device is returned, freight prepaid, to Danfoss Flomatic within 12 months from the date of purchase, it will be
repaired or replaced free of charge. Danfoss Flomatics’ liability shall be limited to our agreement to repair or replace
the valve only.

Danfoss Flomatic

Danfoss Flomatic Corp, 15 Pruyn’s Island, Glens Falls, New York 12801

Phone: [phone] Fax: [phone] www.flomatic.com

November 22,2004 Rev. 3

Specification Sheet PVB