What is a gas shut-off valve used for?

Shut off valves are designed to safely stop or continue the flow of hazardous fluids or external gases.

Do you need a gas shut-off valve?





Natural Gas Shut-off Valves



For safety, a shut-off valve should be installed at every natural gas appliance. If a leak happens at a specific appliance, the valve allows you to turn off the natural gas at the appliance rather than shutting off all of your natural gas service. Some valves require a wrench to turn them.

Where is the gas shut-off valve?

Your main shut off valve is located just before the gas meter. This is called your “street side valve”. On the inside of your house, where the pipe enters your house, you can find your “house side valve.” This ball valve is attached to a black iron pipe.

What happens when gas is shut off?

The main gas service shutoff valve can be turned on in an emergency. If you smell gas, see a broken gas line, or suspect a gas leak, don’t shut off the gas. If you shut off the gas, it may take a while for the service to come back on.

What does gas shut off look like?

Gas shutoff valves



When the long side of the nub or handle is parallel to the incoming gas line, it’s open and the gas is flowing. When it’s turned a quarter turn, perpendicular to the incoming pipe, it’s closed.

How does a shut-off valve work?





Shut off valves function with a second type of actuation which is the normally closed version. This valve is held in the closed position by a piston or by two pistons for the larger shut off valves. Once again, air pressure is applied but in this case the valve opens when air pressure is applied.

Where is my gas shut-off valve UK?

The gas safety shut-off valve is located at your meter. If your meter is not located outside in a meter box, other common locations include: Under the stairs. Beneath the kitchen sink.

How do you install a gas shut-off valve?

Quote from the video:
Quote from Youtube video: By hand place one wrench on the shut-off valve and wrench tighten the excess flow valve with the second wrench. Next attach the appliance connector to the excess flow valve.

How high should a gas valve be off the floor?

Gas supply line coupling must be 34″ (864 mm) to 37″ (940 mm) from the floor. If your washer/dryer has been converted to use LP gas, ” LP compatible copper tubing can be used. If the total length of the supply line is more than 20 ft (6.1 m), use larger tubing.

How do you detect a gas leak?



Here are five ways you can check for gas leaks in your house:

  1. Check for a Sulfur or Rotten Egg Smell. …
  2. Listen for a Whistling or Hissing Noise. …
  3. Check the Stove or Range Top. …
  4. Use a Gas Leak Detector. …
  5. Conduct a Soapy Water Test. …
  6. Propane and Natural Gas Detectors. …
  7. Carbon Monoxide Alarm. …
  8. Carbon Monoxide and Explosive Gas Detector.

Can I turn my own gas back on?

Once the valve is turned off, do not turn it back on by yourself. It must be turned on by a gas company technician. The gas company will likely perform a pressure test on the system and relight all pilot lights in the house as part of turning the gas back on.

What doesnt work when gas is turned off?

Because the gas valve has shut, the gas cannot flow and ignite, meaning the heat will stop working. There is an exception to this rule, however. If you have a generator, you will likely be able to use your gas furnace during a power outage.

Is it safe to turn off gas valve?



Do not shut off the gas unless you smell gas, hear gas escaping, see a broken gas line or suspect a gas leak. If you shut off the gas, there may be a considerable delay before PG&E can turn your service back on.

How do I know if my gas line is active?

Use one pipe wrench to twist the cap counterclockwise and place the other wrench on the pipe to stabilize it. It will probably take a bit of push-pull to bust the cap loose, but once it moves, stop. Spray the joint with the sudsy water. If bubbles form, the pipe is live.

Where is my gas pipes in my house?

Quote from the video:
Quote from Youtube video: Usually your gas service pipe will take the shortest route from our gas mains shown on the drawings. Once you've marked out the route dig trial holes to check the location of the pipe.

What do you do if you have no gas supply?

What to do when you suspect a gas leak:

  1. Open windows and doors.
  2. Turn off your gas supply at the meter (unless it’s in the cellar or basement).
  3. Turn all gas appliances off.
  4. Don’t use light switches, doorbells or any electrical switches.
  5. Don’t smoke, light matches or use cigarette lighters.

Can your gas be cut off?



Gas and electricity companies cannot cut off your supply unless they have first offered you a range of payment methods to help you pay. They must only disconnect your supply as a last resort and they must give you proper notice first.

How do I turn my gas supply on?

To turn on your gas supply, rotate the valve handle into the vertical ‘on’ position. After turning on the gas connection, you should see the gas meter dial move and then stop within fifteen seconds. This indicates gas is flowing from the network through your home’s connection.

How do I reconnect my British gas gas?

Restore my gas supply using my meter

  1. Ensure that all gas appliances are switched off.
  2. Press button A on your gas meter to wake the screen.
  3. Press B on your gas meter.
  4. Press and hold A until you hear the supply come on.


Why is British Gas top-up not working?



If your full top-up isn’t showing on the meter, it may be because Emergency Credit or Friendly Emergency Credit have been used or there is debt or a build-up of standing charges on the meter.

Can you install your own gas meter UK?

You can legally install your own electricity meter, as long as you have the supplier’s permission and the person installing the equipment is qualified to do so. It’s not recommended for anyone not qualified to attempt the installation, as it is a dangerous procedure to undertake.

How much does it cost to move a gas meter British Gas?

It is important to note that the total you will pay to move your gas meter can be split into two amounts: the materials and the labour. The cost to move a gas meter ranges from £400 – £1,000 for materials and £150 – £250 for labour per day. The average cost to move a gas meter is, therefore, £700 + £200 per day.

Can a gas meter be inside?

Can a gas meter be installed inside? A gas meter can be located inside a property if the building is next to a footpath (no external yard or garden), however, this is subject to a low-pressure gas connection being available.

Can a plumber move a gas meter?

Can I move my gas or electric meter myself? No, moving gas meters is a difficult process, so it’s not something you can do yourself. It’s illegal for anyone but a qualified, licensed professional – such as a Gas Safe engineer – to change the meter’s position.