• PTFE Wafe Type Butterfly Valve System 1
  • PTFE Wafe Type Butterfly Valve System 2
PTFE Wafe Type Butterfly Valve

PTFE Wafe Type Butterfly Valve

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PTFE butterfly valves

About Product

A butterfly valve consists of body ,stem ,disc , actuator (manual actuator, worm-gear actuator , aerodynamic actuator or electric actuator) , and PTFE butterfly valve can implement the process for turning on turning off and regulating the flow by the circumrotation of stem and disc  that is droved by actuators.

1.Simple and compact construction. Small in size and light in weight. Easy transportation, installation and maintenance.
2. Quick 90 degrees on-off operation. Minimized operating torque ,energy saving.
3. Excellent sealing performance with ZERO leakage. Long service life.
4. Wide selection of materials ,applicable for various media..
5. Flow curve tending to straight line. Excellent regulation performance.

 PTFE butterfly valves

Size:

DN50-DN1000

End flange:

ANSI B 16.1,EN1092,AS2129

Face to face:

ANSI B 16.10

Top flange:

ISO 5211

Normal pressure:

PN1.0/1.6MPa(150/200PSI)

Body:

CI/DI/WCB/ALB/CF8/CF8M

Disc:

DI/ALB/Rubber lined Disc/1.2501/1.4529/CF8/Hastelloy Alloy/Monel

Stem:

410/416/304/431/17-4PH/316/monel

Seat:

NBR/Hypalon/EPDM/Neoprene/NR/Wear-Resistant EPDM/Viton/Silicon/Heat-Resistant EPDM/White EPDM/EPDM(NSF)/PTFE

Suitable temperature:

-10~120

Medium:

Fresh water, sewage, sea water, air, vapor, food, medicine, oils, alkalis, salt etc.


Q:I was just wondering if any body got there valve replaced,and if they are still having symptoms..Such as sweating,and shortness of breath.I do not know if i should see a cardologist, or the surgeon who replaced the valve.Any answers would be appreciated.Thank you.
Why are you asking serious medical inquiries to idiots like me? it is your existence we are speaking about. in spite of if I had an aorta valve replace the dimensions of time MY discomfort lasted has basically to do with my actual problem, and has NO relevance to you. call YOUR physician N O W!!! it is her duty to charm to close what's threat-free for you, and what can be a symptom of massive aortic valve failure.
Q:behind the valve cover of the #1 and #2 cylinder there are 2 intake and 2 exhaust valves I need know (cylinder #1) which is the intake and which is the exhaust. thank you in advance.
The intake valves are the two rocker arms in the center of the passenger-side head. The exhaust valves are the rocker arms on either end of the head. For the #1 cylinder, the exhaust valve is the one closest to the flywheel side of the engine, and the intake valve is the next one towards the rear of the car. For example, if you're underneath the car and looking at the head, this is the pattern: Ex #2, In #2, In #1, Ex #1.
Q:I've just been told that I need to replace the valve cover gasket on my 97 Volvo 850.....to the tune of $650.00 .....ouch.....is it that difficult to fix?......can you use the red gasket sealant? is there a difference between the head gasket and the valve cover gasket.......yeah I know there probably is.......but when I look on line all i can find is head gaskets......no valve cover gaskets........which scares me into thinking they are the same thing.....i'm hopeing i'm wrong......if its the valve cover gasket it looks like it would be right on top of the engine and fairly accessable.......or am I wrong......sure would like to save the $650 if it is something i can do myself!!!!
valve covers are easy to remove and replace. don't pay 650 bucks for that. yes, you can use the red sealant, but I would suggest high temperature sealant, usually comes in black, it's oil resistant also. just move anything out of your way, unbolt the valve cover, clean the surfaces off the gasket will touch (cover and engine) apply gasket maker and re-attach.
Q:does it moves up and down with the valve stem??
Poppet valve is the commonly used term for a standard, mushroom- shaped engine valve.Obviously, the mushroom head is part of the valve, so yes, it does move up and down with its stem.
Q:What would this envole, can i size up/down the port on the existing valve with just changing the mechanical componts.
On okorder /
Q:My vehicle has 160,000 miles and has burned 2 quarts of oil at 3000 miles. Someone told me to change the PCV valve because sometimes a bad PCV valve can cause oil consumption. I appreciate your assistance.
It coming out of the valve cover(s) there maybe more than one. You can tell what it is by the way it bends at 90 degrees and to remove it just pull up on it it'll pop right out. If you shake it and it clicks. That's not your problem.
Q:Ok. i just got my trumpet and i barely know anything about it. my trumpet book says, oil your valves but i cant even get them unscrewed, its like theyre glued in there...or maybe im just doing something wrong. Helppp
Flip your trumpet over and take some valve oil and put it in the small holes on the bottom of each valve casing. If this doesn't make sense to you take it back to the store you bought it from and have them help you with it. DO NOT FORCE THE VALVES OFF THE INSTRUMENT IT WILL DO MAJOR DAMAGE!!!!
Q:I have a 98 Mitsubishi Mirage, seems there is a valve cover oil leak, i know this can be easily fixed by replacing the gasket.. but how will i know if the leak isn't from the valve cover gasket . Is the cylinder head gasket a major issue also .. if its not really the valve cover thats producing the oil leak should i not worry and just replace the valve cover gasket .?
Valve cover leaks are typically characterized by what you're experiencing: oil oozing out from the cover/cylinder head mating surfaces. If this were your cylinder head gasket, then you'd be experiencing some problems with how the engine runs ...very unlikely it would cause oil to leak from the valve cover. *Do not* simply wrench down on the bolts holding the valve cover; all you will do is crush the gasket and create a bigger leak. Two things you need to do: replace the valve cover gasket and make sure your PVC or crankcase vent system is not blocked. Swapping the gasket is pretty obvious ...they get old and dry out and leak. Checking/cleaning the crankcase vent system keeps compression blow-by gases (a normal thing in engines) from pressurizing the crankcase and forcing oil to seep out in places it shouldn't. A healthy, properly working crankcase vent system helps prevent this.
Q:My mother is 40 and is going in on the 21st for an aeortioc valve replacement. We are so stress on deciding between what type of valve she should have to get. please help. please include things like costs and medicines and anything else that will give us more info.
This is definitely a question for your cardiologist. I can tell you that mechanical valves will require a higher INR and they will have more problems with bleeding. A tissue valve won't last as long as mechanical, and may have to be replaced sooner.
Q:Since the valve drain is usually open, I am wondering if placing the cap on the drain has made my water heater dangerous.
To hold water in the tank your plastic drain valve should usually be closed. It does not matter if the water is held in the tank by a valve or a cap. A metal cap would be better than a plastic. You could also drain the tank and replace the gasket in the valve, but that is a lot of work for little benefit. Had not though of that. The drain valve is the one at the bottom of the tank. If this is a pressure relief valve, yes it would be very dangerous to cap it. The pressure relief valve is located near the top of the tank.

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