Asked by: Hmida Zerhouni
sports scuba diving

What is a vent limiter on a gas regulator?

Last Updated: 1st May, 2020

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A vent limiting orifice or device when used with Maxitrol regulators does not release or relieve gas into the environment during normal operation. Vent limiters are designed for use indoors and in spaces where limiting the amount of gas escapement due to diaphragm failure is critical.

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Consequently, what is the vent for on a gas regulator?

The vent functions as a safety measure and allows the diaphragm within the regulator to breathe. Additionally, if the diaphragm ever ruptures the vent facilitates a leak path to the atmosphere. If the vent becomes restricted, the regulator will not correctly regulate the pressure to the meter.

Beside above, how does a gas pressure regulator work? A pressure regulator works through the same principles of any natural gas regulator. When pressurized natural gas enters the regulator, it will push up against the diaphragm, bringing tension to the spring. The diaphragm will move upward as far as the tension of the spring will allow it to go.

Also to know is, can gas regulator vents be tied together?

Relief vent openings on gas regulators are required to be vented to atmosphere and should not be tied together for various reasons. The regulator has an internal diaphragm which must be able to move freely and unrestricted in order to properly regulate the gas pressure. The regulator has to breath if you will.

Can a gas pressure regulator be installed vertically?

Not on the gas supply pipe. That's where the gas shutoff should be installed. If the intake manifold pipe on the appliance is vertical, pointing down wards, installation of the regulator in the vertical position is acceptable. If intake is horizontal, installation of the regulator in that position is acceptable also.

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