Manual Operated Wafer Type Butterfly Valve

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Specifications

1.DN50-DN1200
2.PN1.0/1.6MPa(150/200PSI)
3.API,ASTM,ASME,BS,EN,JIS,ISO approved
4.manual,electric,pneumatic operated.

Wafer Type Butterfly Valve with Lever actuator

Features:

1. Small in size, light in weight, easy installation and maintenance.

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

3. Minimized operating torque, energy saving.

4. Flow curve tending to straight line, excellent regulation performance.

5. Long service life, standing the test of tens thousands opening/closing operations.

6. BUbbles-tight sealing with no leakage ubder the pressure test.

7. Wide selection of materials, applicable to various medium.

Performance:

Nominal pressue (MPa)		1.0	1.6
Nominal diameter(mm)		50-1000	50-1000
Test pressure	Shell	1.5	2.4
(MPa)	Seal	1.1	1.76
Applicable temperature		150
Applicable medium		Fresh water, Sewage, Sea water, Air, Vapor, Food, Medicine, Oils, Acids, Alkalis, etc.
Operating mode		manual, worm gear, pneumatic, electric, etc.

Standard:

Design & Manufacture	Flange Connection	Face to Face Dimension	Test & Inspection
MSS SP-67 API609 EN593	DIN PN10/16/25; ANSI B 16.1 BS4504; ISO PN10/16 JIS B 2212/2213 BS 10 table D; BS 10 table E	API609 ISO5752 series 20 BS5155	API 598

Material List:

No.	Part Name	Material
1	Body	Carbon Steel/Stainless Steel/Cast Iron(GGG25)/Ductile Iron/ Al-Bronze
2	Disc	Al-Bronze/CF8M/Ductile iron/WCB
3	Seat	EPDM/PEFE/Buna/NBR/Hypalon
4	Stem	Carbon Steel/Stainless Steel314/Stainless Steel316
5	Bushing	PTFE/Lubricating
6	O ring	EPDM/PEFE/Buna/NBR/Hypalon
7	Pin	SS316/SS416/SS304

Q: The automotive machine shop who is working on my Corolla head and block said that one of the valves was severely burnt. What causes burnt valves???: Several things, the most common being too much heat in the combustion chambers. The heat literally melts slots in the valve face-I had one from 4.9 Ford truck with a clogged radiator that made the valve look like a sand dollar. Anything causing it to run hot , or hotter than designed, needs to be addressed. The other common problem is opening the exhaust up TOO much-Exhaust valves(which, by the way, are the ones that burn 95% of the time), are designed to have exhaust system backpressure help seat them when they close, thereby transferring the maximum amount of heat from the valve face onto the valve seat, which cools them down before the next cycle. Taking off converters, and staight-piping the exhaust will almost always result in burnt valves. An inoperative EGR system, which by design lowers the combustion chamber temperature , can contribute to valves burning.Overheating , however, is the most common cause.

Q: Why are pig hearts valves used as replacements for damaged heart valves in humans? Are there any complications and are they still used today?: The tissue is most like ours. Yes, they are still used. They have a low rate of rejection.

Q: It is burning oil, so that means oil is getting into the combustion chambers....but im not exactly sure which piece has gone bad? or for that matter what the valve guides are in the first place. Could the lifters have gone bad too? Can someone tell me what piece is most likely the cause for the oil leak into the chambers and then a price of how much it would cost to have it fixed. When i start the car it blows a puff and then settles down and then when im at a stop light and push the accelerator it blows a puff and then more or less settles down...sometimes it keeps going for a while. My mechanic put an additive in the oil called stop the smoke or something, and i know that that causes the seals to expand...and it has helped. So. I need someone to give me an overall diagnosis and price range. My mechanic is reluctant to have me do the work, im guessing cause its expensive...but i would rather pay 1000 dollars then buy a new car.: Do a compression test, that'll tell you exactly whats wrong. Or have a mechanic do one.

Q: I am going to replace the EGR valve on my 99 Pontiac GP with the 3.8. It needs replacing(has already been cleaned twice) and keeps popping the code for it. Anyways..my question is: after its replaced what do I need to do to reset the codes or computer? Someone told me to unhook the battery for a hour and that will do it???? Is this true? Any help out there?? THANKS!!!!!!!!!!!!!!!!!!!!: a great type of the time its not the EGR Valve, this something else. Do you no what code or codes have been discovered ? i've got seen the O-ring lacking on the percentvalve alot and this journeys a EGR code, verify the percentValve for the O-jewelry or while the engines ruining open the oil cap and verify to verify if theres a great vacuum there. if so the O-ring is lacking.

Q: Friends,is there anyone know about LinX(Linear Exchage)Valve,how they work.thanks in advance: A major improvement in the DWEER system has been the development of the LinX (LinearExchanger) valve, which was patented byShumway . This valve replaced eight two-way valves with asingle multi-port spool valve which simplifiedthe system, improved reliability, reducedmaintenance requirements and allowed for fastervalve switching, reducing the size (and thus cost)of the energy recovery vessels. DWEER systemsutilize long vessels which may be installed underthe membrane vessels. Atpresent, the largest available DWEER system has a capacity of 500 m?/h. DWEER (Dual Work Exchanger EnergyRecovery)

Q: So I just got mu egr valve on my car replaced a year ago. Now it needs replacing again!? why might this be? shouldnt it last longer?: Your EGR valve is not likely to be defective. Test it to make sure it's defective before you have it replaced. Just because a code reader or scanner reports an out of range reading, that doesn't always mean that the sensor or component is bad. All it means when a code reader or scanner reports an out of range reading it that there is a problem somewhere in that circuit. To test your EGR valve, or any other for that matter, just search the internet for how to test a ______ whatever.

Q: Anyone know what causes a heart valve to leak? I had surgery to repair mine (mitral) a few months ago, and now I have a very mild leak.: The valve isn't closing securly. If that's what you went in for, maybe the surgery wasn't done properly.

Q: Whilst pumping up my new tubular tyre, the head of the presta valve snapped off! Because this is a tubular tyre, I spent a lot of time (and cash) gluing it on and applying it etc, so I'm reluctant to buy a new tub. Is there any way getting a new presta valve head without replacing the whole tyre?Thanks in advance.: This Site Might Help You. RE: Presta valve snapped!? Whilst pumping up my new tubular tyre, the head of the presta valve snapped off! Because this is a tubular tyre, I spent a lot of time (and cash) gluing it on and applying it etc, so I'm reluctant to buy a new tub. Is there any way getting a new presta valve head without replacing the whole...

Q: Half-Life 1 and 2 to me were masterpieces. It would be a shame if Valve ended the series there.Is Valve going to make Half-Life 3 in the near future ? If so, do you have any proof ?: Sorry VALVE can't count to 3, it's a shame really...

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