How does a natural gas regulator work

I take apart a natural gas regulator used in gas furnaces. Adjusting is covered. What makes it work is covered.
If you are a homeowner looking to repair your own appliance, understand that the voltages can be lethal, the fuels are highly flammable and high pressures are used. Know your limits.

[raindropsrising]

Thanks. Probably one of the best explanation without relying on engineering terminologies. I learned more in a few minutes than an hour of class. Thank you.

[whispergb]

I'd always understood the principle, but not the actual mechanics. Thanks for taking the time to put this together.

[cburgos]

I like the presentation of this video, the way the Reguulator is cut in half for the visual, very good.

[flyingpiggie]

Excellent explanation. Had difficulty grasping how it worked and instantly understood it after seeing this video.

[hermburgler]

best explanation. once you said the valve "modulates" in between the closed and open position, it just clicked with me. thank you!

[ParikshitShastri]

Awesome man! This is so far the best explanation. Real parts..no animation. Real feeling. Thanks

[BBYERS]

I wish I had a 10th of Grayfurnacemans knowledge. This guys videos always come through when I need to understand something technical.

[spencerwilliams]

New to trades/HVAC. Looking inside at the ‘guts’ of components is so very helpful and deeply satisfying. Having an education based on a series of truths informed by professionals with an aptitude for teaching is priceless. Thank you 🙏

[markeldamgaard]

This video has been super helpful for my plumbing class. I needed a visual understanding just just verbal.

[davidbrown]

Excellent explanation. Thank you very much . I especially liked the explanation of the situation where the diaphragm breaks. Thank you again.

[wakamoli]

There are many types of regulator designed for different purposes, for example a regular residential housing uses a regulator that maintains a top pressure of 7 inches of water column pressure (0.2527psi). When you get into a commercial application it gets more complicated because you have other issue such as Pressure-Reducing Regulators: These maintain a desired outlet pressure while meeting variable downstream demand. They are often used in transmission and distribution systems. Pilot-Operated Regulators: These provide precise control and are suitable for high-capacity applications. Service Regulators: Designed for smaller commercial loads, they are commonly used in residential or light commercial setups. Line Pressure Regulators: These manage pressure within pipelines and are used in medium to large-scale applications. Appliance Regulators: Is what this program is showing. I used to teach this back in the 1980's. Keep up the good work.😁
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[dizzcorn]

Bravo! It was so awesome to see the actual cross section of the regulator.

[lonetraveler]

Thank you. I have learned a lot from you since I tried to understand and maintain my ~80 years old winter air conditioner. It has gas train control and regulators. Gas regulator, then gas solenoid valve. I replaced the diaphragm at gas solenoid valve last winter with diaphragm from leaf blower carburetor repair kit. It was completely dried and cracked. I suspect the diaphragm in the gas regulator is also about to fail. Since the bleeding vent pipe at pilot light is not on. (The pilot light has it’s own tube.)So I think it’s still intact. I changed wire to fan motor in summer. The insulation became brittle. Seems all parts are still original except fan motor control. I bought a combination valve to upgrade the gas train control system if any parts fail this winter or I will replace it in next summer.

[erikwingard]

Thanks much. Seeing the internal working really helped make it super clear. Intuitive even. Much appreciated

[lam]

The small hole on the top side of the diaphragm is to control the opening and closing speed of the regulator. Informative video none the less.

[TheBirdandEagle]

Again, what great information. Learn something on your channel every day. Thank you.

[grayfurnaceman]

You are right! The pressure downstream will be enough to keep the diaphragm closed until the pressure drops. Thanks. I will do a correction video.

[AbdulazizGhamdi]

great job sir

you explained the regulator as i want and also as other people want

the way you speak, indicate, zooming in and out is helpful

thank you buddy

[enockmuteyo]

What a good teacher, great explanation i won't forget this.

[tboneproductions]

I believe the fuel regulator on autos works the same way. If the diaphragm malfunctions the vehicle will run rich. Thanks for the great video