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It is extremely important that our products do not leak. We have developed a process and manufacturing fixture which completely eliminates the possibility of a defective product getting shipped to a customer. To accomplish this, we test every single seal in the pressure regulator. Every pressure regulator we manufacture is screwed into the above test fixture. The fixture is comprised of multiple manifold assemblies. Each manifold assembly contains 7 fittings for attaching the pressure regulators under test. The manifold is filled to 100 PSI minimum and the manifold is shut off with its own shut off valve. Air is then removed from the input of the manifold shut off valve. This creates an air tight assembly. The manifold assembly holds a relatively small volume of compressed air so if there is any air leaks, there will be a significant reduction in pressure after 4hrs. We monitor the manifold pressure for a minimum of 4hrs and there must not be ANY reduction in pressure. If we get any reduction in pressure, we use a leak detect solution to determine which unit had the manufacturing defect. The defective unit is removed and replaced with another pressure regulator for testing. ALL the previously tested pressure regulators in that manifold are then tested again for another 4hrs minimum. We are very serious about performing this Quality Test.

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The swivel is screwed into the test fixture because there is an o-ring seal used to seal the torch tip which is screwed onto the swivel in the final product. This also allows the swivel assembly to be leak tested. There are two other o-ring seals in the pressure regulator which are tested.  One is in an assembly under the knob and the other is in an assembly in the bottom of the pressure regulator. Our pressure regulators use a diaphragm construction. This diaphragm is clamped between two surfaces. The highest regulator pressure is 50 PSI. We test the pressure regulators at 100 PSI which is above the normal operating range. This provides an adequate safety margin when checking for leaks within the final product. This pressure test also verifies that the shut off/regulating valve is  shut off properly.

We are very confident that when our pressure regulators pass this stringent test, there will not be any leaks in the field. Our field history proves out this fact.