It can fill up a basement, ignite from a furnace or other appliance, and demolish a house. Facts about Regulators 10. Every regulator has a diaphragm, a poppet valve and several fittings. Any of these could leak. In particular, the poppet valve, the diaphragm and the pressure gauge contain mechanical parts.
Any mechanical part is subject to failure with use, sometimes suddenly.
A separate shut-off valve should be located immediately upstream of a regulator. Regulators are typically designed to handle only gases. Facts about Refractories 14. Castable refractories require water to mix, set up overnight, and then must be fired slowly to cure. Too rapid heating the first time will cause spalling of the material.