Pressure vacuum breaker definition
Pressure vacuum breaker means an assembly consisting of a device containing one (1) or two (2) independently operating spring loaded check valves and an independently operating spring loaded air inlet valve located on the discharge side of the check valve(s), with tightly closing shut-off valves on each side of the check valves and properly located test cocks for the testing of the check valves and relief valve.
Pressure vacuum breaker means an assembly composed of an independently acting spring loaded check valve located downstream of an independently acting spring loaded air inlet valve including, tightly closing shutoff valves located at each end of the assembly and suitable connections for testing the integrity of the air inlet and check valves.
Pressure vacuum breaker means an approved backflow prevention device which contains a spring loaded check valve and a spring loaded atmospheric vent which opens when the pressure approaches atmospheric. Such a device shall include two tightly closing shut-off valves located at each end of the device and two properly located test ports for testing the device.
More Definitions of Pressure vacuum breaker
Pressure vacuum breaker means a device or assembly containing an independently operating internally loaded check valve and an independently operating loaded air inlet valve located on the downstream side of the check valve for relieving a vacuum or partial vacuum in a pipeline.
Pressure vacuum breaker means a device which contains a spring loaded check valve and a spring loaded atmospheric vent which opens when the pressure approaches atmospheric. The unit shall include two tightly closing shut-off valves located at each end of the device and two test cocks properly located for testing the device;
Pressure vacuum breaker means an assembly consisting of a device containing one (1) or two (2) independently operating spring loaded check valves and an independently operating spring loaded air inlet valve
Pressure vacuum breaker means a device or assembly containing an independently operating internally loaded check valve and an independently operating loaded air inlet valve located on the downstream side of the check valve for relieving
Pressure vacuum breaker means an assembly consisting of a device containing one (1) or two (2) independently operating spring-loaded
Pressure vacuum breaker means a device containing one or two independently operated spring loaded check valves and an independently operated spring loaded air inlet valve located on the discharge side of the check or checks. The device includes tightly closing shut-off valves on each side of the check valves and properly located test cocks for the testing of the check valve(s).
Pressure vacuum breaker means an as- sembly composed of an independently acting spring loaded check valve located downstream of an independently acting spring loaded air inlet valve including, tightly closing shutoff valves lo- cated at each end of the assembly and suitable