regulator applications

Question 1

a gas pressure regulator when installed out doors should have the vent

Answer 1

opening pointing down stream

Question 2

when installing an appliance regulator and the vent opening is completely blocked this will cause the regulator to

Answer 2

remain permanently open

Question 3

a two stage propane regulator would typically be set for

Answer 3

first stage 10 psig second stage 11’ w.c

Question 4

when the inlet supply pressure to line pressure exceeds .5 psig it shall

Answer 4

be of a positive shut off type

Question 5

the leak limiting device should be installed

Answer 5

vertically

Question 6

if a 5psig line pressure regulator has a 3/4 vent tapping and the ventline must be 65 feet what must be done

Answer 6

use 1” pipe for the entire lengh-make the change at the vent tapping

Question 7

too mant fittings on a vent line could cause

Answer 7

the regulator to hunt

Question 8

the purpose of a pilot tube in a regulator is

Answer 8

keep downstream pressure closer to set point during flow conditions

Question 9

if a 5 psig line regulator ( with internal relief) was installed in a boiler room, which of the following would be required

Answer 9

the vent must be piped to a safe location outdoors

Question 10

a line pressure regulator operating at 2psig or less shall be exampt from the requirments of clause 5.2.1.5 B when equipped with

Answer 10

a vent leaking limiiting system