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    What is a shutoff valve?

    Plumbers

    Could you tell me what a shutoff valve is please? And how does it work? Any advice would be greatly appreciated.

    Asked by Jackie on 27th Oct 2021
    Share this question
    Clifford's Plumbing & Tiling services

    "Shut off valves, could mean mains stopcock. Which would shut down the mains water supply coming into the property.
    It could be a gate Vale going to or from the emersion heater. Or it could be an isolation valve directly next to a Basin, WC or Kitchen sink."

    Answered on 29th Oct 2021 - Member since Aug 2021 - report
    Arc Electrical Cumbria

    "Normally for gas or water, if it’s for water it’s normally called a stop cock.
    For gas, it could be called a shut-off valve."

    Answered on 27th Oct 2021 - Member since Aug 2017 - report
    JR Plumbing&Heating

    "Hi, a shutoff valve is an isolation valve that shuts off a water pipe in your property. Can be a main shut-off valve that obviously shuts the main water off, can be a shut-off valve for one appliance for example a tap, toilet, or bath."

    Answered on 27th Oct 2021 - Member since Oct 2020 - report
    M&k&j Maintenance service

    "It is a valve that you can isolate the water from traveling any further through the pipe."

    Answered on 27th Oct 2021 - Member since May 2021 - report
    Ndrplumbing&heating

    "A shut-off valve means exactly what it says really. A shut-off valve could be a gate valve a stopcock or a lever valve.
    A shutoff valve isolates the water supply to a particular part of the plumbing system for example an outside tap. It can come in many different forms and depending on the type you have.

    Hope this helps and any more quires I would be happy to help .
    Regards Neil"

    Answered on 27th Oct 2021 - Member since Aug 2021 - report
    JS Plumbing & Heating Maintenance

    "Hi Jackie a shut off valve is just another name for an isolation valve, it's something that shuts or turns off the water temporarily.

    Kind regards
    Jonathan"

    Answered on 27th Oct 2021 - Member since Sep 2019 - report
    Mark Davis Installations

    "A shut off valve is a loose term for any device that isolates the flow of a liquid or gas. Sometimes called isolating valves they can have a slot for a screwdriver to turn on/off sometimes a wheel (called gate valves) but the best in my opinion are lever valves as they are less likely to sieze and really easy to operate without tools. Hope this helps."

    Answered on 27th Oct 2021 - Member since Aug 2021 - report
    JFNplumbing

    "A shut-off valve allows for any water to drain out at that point so maintenance can be carried out.
    Hope this helps
    Thanks, James"

    Answered on 27th Oct 2021 - Member since Oct 2021 - report
    Scott Property Maintenance

    "This is a stop tap. It can be the main stop tap to the house or it can be any isolating valve to an appliance or tap."

    Answered on 27th Oct 2021 - Member since Jul 2016 - report
    JTR Plumbing

    "A shutoff valve is used to isolate (stop) any flow of water going past the point of the shutoff valve so Plumbers can work on pipework, taps, baths, cylinders, etc. Once work is completed u can open up the shutoff valve by the lever or sometimes a round spindle."

    Answered on 27th Oct 2021 - Member since Sep 2021 - report
    Shawn Bridgwater

    "It shuts the water off, there should be a stopcock under the sink or an isolator valve in the pipework to your tap."

    Answered on 27th Oct 2021 - Member since Aug 2021 - report
    Self employed

    "In relation to water, it's like an on/off switch.
    It's pretty simple to turn one way the water supply is stopped. Like turning off a tap.
    Turn on water supply runs, like turning on a tap.
    There are various valves that do the same job. The old-fashioned gate valve is found in airing cupboards.
    The isolation valve.Near a toilet or under sinks.Opens and closes with a flat head screwdriver.
    Then there is a stop cock on the incoming mains water.
    So think of it as a tap but one-half turn shuts off.
    Also, the term is used in oil, gas, and other manufacturing.
    So I hope this helps.
    David.
    Plus central heating radiators have two valves that can be open and closed."

    Answered on 27th Oct 2021 - Member since Oct 2021 - report

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