Manual Wafer Butterfly Valve without pin

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Product Description:

Quick Details

  • Standard or Nonstandard: Standard

  • Structure: Butterfly

  • Pressure: Low Pressure

  • Power: manual,pneumatic,electric,etc.

  • Material: Casting

  • Temperature of Media: Medium Temperature

  • Media: water,gas,oil,etc.

  • Port Size: DN50-1200mm

  • Place of Origin: Tianjin, China (Mainland)

  • Model Number: D7A1X-10/16

  • Brand Name: TVT

Packaging & Delivery

Packaging Details:Standard export packaging: plywooden case, Or as per clients' requirements
Delivery Detail:Within 15-30 days after receipt of L/C or 30%deposit by T/T


3.ODM/OEM service
4.different standards.
5,lever,pneumatic,electric driver.

wafer butterfly valve without pin


1.Small in size and light in weight. Easy installation and maintenance. It can be mounted wherever needed.

2.Simple and compact construction, quick 90 degree on-off operation.

3.Flow curve tending to straight line. Excellent regulation performance.

4.Long service life. Standing the test of thousands opening/closing operation.

5.Wide selection of materials, applicable for various media.


Design standard

Face to face

End flange

Test & inspection





ISO5752 series 20


DIN PN10/16/25

ANSI B 16.1


ISO PN10/16

JIS B 2212/2213

BS 10 table D

BS 10 table E

API 598




Testing Pressure


Applicable Temp. °C

Applicable Medium




DN50 ~ DN1000



-45~ 150

Fresh water, Sewage, Sea water, Air, Vapor, Food, Medicine, Oils, Acids,

Alkalis, etc.

Material List:

Part Name



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Q:aorta valve replacement?
Any side effects directly after or shortly after a major heart surgery or valve replacement would best be followed up by a visit to the cardiologist to make sure there are no other problems or problems with the new valve. This is a serious question and should be treated as so. Go see a doctor asap. That way, if nothing is wrong you have a piece of a mind instead of waiting and waiting.
Q:steam radiators valves?
First off these are vents , the valves are at the bottom of the radiator where the pipes come in. Sounds like the vents are either closed or broken. Try turning the adjustment screw if that doesn't work I recomend replacing the with vent from a company called ventrite the valve you are looking for is a vent rite #1. These are adjustable vents used to balance the heat throughout your unit the dial at the bottom is labeled 1-8 start with all of them on 8. Now when the radiators heat up if you find some are getting hotter faster turn those down a notch and check again in a day or so.
Q:Tire valve problem?
by the time you drive around find a valve stem tool and then find a new valve core which you need to replace because it is leaking and how many times in your life time will you ever need this tool again you would be better off going to walmart tire center and have them install a new valve stem it comes with the new core and cap in 1 unit assembly
Q:bad valves honda civic??
Bad rings cause excess blow by in the crankcase causing vapors (heavy) to come from the dipstick tube as well as the valve cover. I can smell the exhaust smell in the breather vapors not just oily smell. Valves mostly cause smoking out the tailpipe as oil enters the cylinder and burns. excess oil usage is common as well. A compression test will indicate bad rings as one or 2 cylinders will read much lower on the gauge. valves can be seen as bad compression as well but often show more in the leak down in the gauge. the condition you stated of the valves is from oil entering the cylinder heads and burning. this is usually valve guides.
Q:Leak from Pressure release valve?
Michael is correct here. The TP valve is an integral part of the unit and should be replaced if leaking, not merely flipped open and closed a few times and then forgotten. Besides the folks that are telling you to flip the lever open and closed are forgetting about shutting down the water supply first. If you don't shut off the water before doing this you'll have a fair amount of hot water splashing out on the floor, and if it's overheated water it could very well scald parts of your body. It's extremely dangerous to take the advice of strangers, on a forum such as this, about something like this that can cause you much trouble and grief. If you are a handy person it's a fairly simple repair to replace one of these. Just turn off the water supply valve to the tank, if it's separate, if not then shut down the house supply. Many people say you need to drain water off the tank so as not to get any on the floor, and if that's a big concern, then it's not a bad idea. However, once the water is cooled, with the supply shut down there's no more pressure and the tank is similar to a straw full of water with your finger over the top. The water won't flow out easily without an air supply above it. So, if you have your pipe wrench ready and can take the old valve loose, have the new one taped with teflon tape on the threads and ready, when you unscrew the final threads of the old one, stick the new one right into the hole and thread it in. You won't lose enough water to be concerned about and you'll have a new pressure relief valve in place. Be sure to tighten it down good. Refill whatever water has left and check for leaks.
Q:brake proportioning valve?
Yes they do go bad! It sounds like that is your problem. You can try bleeding the proportioning valve with a brake bleeding gun, making sure to open every valve then re-bleed the brake system this will eliminate the possibility of a air bubble in the proportioning valve. I have changed probably ten or twelve of these things in my ventures.
Q:Is valve standard of API and ISO same?
the name itself suggest that it isn't. BSP covers only pipelines but ISO is a standard concerning different materials, processes, programs and quality policies.
Q:Sprinkler Valves?
If it is $50-$70 installed, that is a good price. Where I work, we get $125, and that is about the going rate in the north east. If you want to do it yourself, do not use Toro valves, Toro is garbage. Hunter, Rainbird, Irritrol, and Weathermatic are all good valves. Dig a nice big hole where the valves are, longer on the downstream side of the sprinklers. Cut the line coming out of the valve, and unscrew it. If it is a tight fit, take the valve apart and unscrew it. If you have to take the new valve apart to put it on, There are only 3 parts inside, so don't worry about not being able to put it back together. From top to bottom, they are the spring, the rubber diaphram and the plastic ring. Then reconnect the lines coming out of the valve. Then connect the wires from the solenoid. 1 wire from each valve gets connected to the common wire. Look in your timer to see what color it is. Then the other wire gets connected to individual wires. Check the order of the wires to the valves. Write it down. This will help keep the valves in the same order they are in now. The prices you got 50-70 is what your gardener told you for each (i am assuming that he is installing them.) The 300-1000 just estimates for installation from different contractors. Unless you have 8 valves or more, the $1000 sound real high. You do not have to be a plumber to install the valves.
Q:Trumpet problems! No noise, just air! Valves sticking!?
take the valves out and lightly apply some vegetable oil to free them up.
Q:Clarification on purge valve solenoid operation?

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