Factory wholesale vacuum pressue gauge all SS material 100MM oil filled pressure gauge YN100Z-1.6Mpa to Singapore Manufacturers

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Factory wholesale vacuum pressue gauge all SS material 100MM oil filled pressure gauge YN100Z-1.6Mpa to Singapore Manufacturers Detail:

2.5 inch 63mm Steel material liquid filled hydraulic pressure gauge

Fob price :us1.5-4/piece

Min.order quantity:10 pieces

Supply Ability: 30000 pieces per month

Port: Ningbo/Shanghai

Payment Terms: L/C,T/T

 

Quick Details

Place of Origin: Zhejiang, China (Mainland)

Brand Name: Yujing

Model Number: YN

Case material: Stainless steel or Steel or Plastic

Supply type: Make-to-Order

Pressure range: -1 to 1000bar

Case size: 1.5”(40mm), 2”(50mm), 2.5”(63mm), 3″(75mm),4″(100mm),6″(150mm)

Connection Style: Bottom connection or Back connection

Certification: ISO:9001-2008 and roHs

Liquid filling: With or without liquid

We are factory: Yes

OEM: Yes

Customize: Yes, we can make as per your request

 

Packaging & Delivery

Packaging Details: Carton or as per your request

Delivery Detail: Goods in stock

 

Specifications:

Place of origin:Zhejiang China

Dial Size:1.5″ (40mm), 2″(50mm), 2.5″(63mm), 4″(100mm), 6″(150mm)

Case:Steel or Stainless steel or black iron

Lens:Glass  or Polycarbonate /Safety Glass

Connection material:Brass/S.S.304/S.S.316

Mounting:Bottom/Back /Lower back entry /LBM with flange or bracket

Fill Liquid:Glycerin/silicone oil/dry

Thread: 3/8″~1″ or as per your request

Pressure Range:-1~0~1000bar

Accuracy:2.5%,±1.6%,±1.0%

Mounting:bottom mounted or center back

 


Product detail pictures:

Factory wholesale  vacuum pressue gauge all SS material 100MM oil filled pressure gauge  YN100Z-1.6Mpa to Singapore Manufacturers detail pictures


Which has a positive and progressive attitude to customer's desire, our corporation constantly improves our merchandise quality to satisfy the desires of consumers and further focuses on safety, reliability, environmental demands, and innovation of Factory wholesale vacuum pressue gauge all SS material 100MM oil filled pressure gauge YN100Z-1.6Mpa to Singapore Manufacturers, The product will supply to all over the world, such as: Serbia, Botswana, Vancouver, The company has numbers of foreign trade platforms, which are Alibaba,Globalsources,Global Market,Made-in-china. "XinGuangYang" HID brand goods sell very well in Europe, America, Middle East and other regions more than 30 countries.



  • A brief video about Pressurised Heating Systems. How to drain them and fill them up. How to vent air from them. How to pressurise them. For more information visit our website at http://www.plumberparts.co.uk

    DIY

    In this video I’m going to tell you how to drain down a pressurised heating system. This particular system doesn’t have a feed and expansion tank in the loft or a ball valve for you to hold up or anything like that. It’s completely sealed and airtight
    so you have an expansion vessel, cold water fill and a pressure valve, and a pressure release valve as well. I’ve managed to locate the pressurization filling loop and I’ll just show you that now. Here’s the pump, that’s the flow from the boiler. This pipe coming down here is the feed pipe Here is our expansion tank. That will take any expansion for when the water heats up. So, there is a rubber diaphragm in there This side is air and this side here is water. THen we have our pressure gauge which currently reads about 1 bar when it’s cold.
    The heating system should be at about 1 and a half bar when it’s warm.
    There’s our first valve from the mains comes down here and there’s our second valve there. turn both of those off. Remember when draining any system
    to open up any 3-port or 2-port valves.
    put our hose on and drain the system down.
    You have your boiler with it’s flow to the radiator and it’s return back.
    You’ll have a cold feed coming in to a
    valve, then a hose that you saw upstairs when I showed you
    That will go through a manifold that connects to the expansion vessel. This has a rubber diaphragm inside. On one side of that you have water
    and on the other side you have air. There is a small schrader valve so that you can pump the air
    bag up to a certain pressure.
    Usually you’ll pump it up to 1 bar
    Also you have a high pressure relief valve. Now, for safety reasons there should never be any valves between the
    heating system or the components of the expansion vessel and the high
    pressure relief valve. That’s very important. When testing the air pressure in the air side of the expansion
    vessel, only ever do that when the system is drained down and there is no water pressure in there otherwise
    you’ll get a false reading. There is
    also a check valve that in a situation where the heating system pressure got above that
    of the cold water mains coming in, you couldn’t push heating system water back
    into the main supply come downstairs and find the
    lowest point of the system. Here’s our drain off just here on this lowest radiator.
    So, pop a hose on here. Open that fully up and then go back upstairs.
    So we come up here, open this air vent up
    make sure that these two valves are open so the thermostatic valve
    is fully open and the lockshield at the other end is open
    and open up the valve. Do that to every
    other radiator upstairs and after about 10 minutes, and do it to all of the rads downstairs.
    If you’re working on the radiators just upstairs
    then you won’t need to drain the one downstairs, will you? Once all the
    water has stopped coming out of the end of your hose and you’ve vented all the radiators that you want to work on upstairs and downstairs you can now work on everything
    You can now fill the system up again.
    Right, remove your hose and then shut off your drain off.
    go upstairs and go around all of the radiators upstairs and downstairs and shut all their air vents.
    go back to where the pressurization unit is and the fill loop is and open those valves and start to fill the system
    Just open that. Now we are reintroducing
    water into the system. You should see dial start to
    rise as pressure starts to build.
    Pressurize it up to about one and a half bar, then go back downstairs to the
    radiators and vent them out.
    As soon as there’s no more air coming
    out and it all stops go back upstairs and top the system up again
    Keep going around doing that until you have water coming out of each radiator and you’ve turned it off
    and then as soon as that’s done go back upstairs, pressurize the system to one bar and
    you should be done. what you do is pressurize it up to a bar, you
    bleed the rads. When no more air comes out shut that radiator. Go back upstairs
    repressurize to a bar, open that radiator, Leave the system at one bar
    and then when it comes and gets hot and you turn it all on it should only get up to
    one and a half bar

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    The supplier cooperation attitude is very good, encountered various problems, always willing to cooperate with us, to us as the real God.


    5 Stars By Ray 2015-10-15 14:15
    This manufacturers not only respected our choice and requirements, but also gave us a lot of good suggestions, ultimately, we successfully completed the procurement tasks.

    5 Stars By Jerry 2016-9-19 11:11

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