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ASSE 1001

Performance Requirements for Atmospheric Type Vacuum Breakers

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Organization: ASSE
Publication Date: 1 January 2008
Status: inactive
Page Count: 23
scope:

Description

Vacuum Breakers shall be classified in two general types:

a. Atmospheric type, as described herein.

b. Pressure type (See ASSE Standard #1020, Performance Requirements for Pressure Vacuum Breaker Assembly, and ASSE Standard #1056, Spill Resistant Vacuum Breakers).

The atmospheric type design shall consist of a check valve member and an air vent that is normally closed when the device is pressurized, and open when the inlet pressure is atmospheric.

Sizes

Inlet and outlet pipe sizes shall range from 1/8 NPT to 4 NPT (3 mm to 100 mm).

Working Pressure

Devices shall be designed to operate within a working pressure of 8.0 psi (55.2 kPa) to a minimum of 125.0 psi (861.9 kPa).

Temperature Range

a. Devices limited to cold water service shall operate within a range from 33.0 °F + 2.0 °F - 0 °F to 110.0 °F +0 °F - 2.0 °F (0.6 °C + 1.1 °C - 0 °C to 43.3 °C + 0 °C - 1.1 °C).

b. Devices intended for hot or cold water service shall operate within a range from 33.0 °F + 2.0 °F - 0 °F to 180.0 °F +0 °F - 2.0 °F (0.6 °C + 1.1 °C - 0 °C to 82.2 °C + 0 °C - 1.1 °C).

Document History

November 1, 2016
Performance Requirements for Atmospheric Type Vacuum Breakers
This standard provides performance standards and compliancetesting procedures for atmospheric type vacuum breakers that are singlepipe-applied, flushometer-applied, or integrally-applied. Atmospheric...
ASSE 1001
January 1, 2008
Performance Requirements for Atmospheric Type Vacuum Breakers
Description Vacuum Breakers shall be classified in two general types: a. Atmospheric type, as described herein. b. Pressure type (See ASSE Standard #1020, Performance Requirements for Pressure...
January 1, 2002
Performance Requirements for Atmospheric Type Vacuum Breakers
Purpose - To prevent backflow or back-siphonage into a potable water distribution system when installed with the Critical Level point (as described later herein) at least 6 inches above the flood...
September 1, 1988
Performance Requirements for Pipe Applied Atmospheric Type Vacuum Breakers
A description is not available for this item.

References

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