Butterfly Valve DN80 Turbine Type with Hand Wheel BS Standard

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100 set
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1. Manual Wafer Butterfly Valve Description:
A butterfly valve is a valve which can be used for isolating or regulating flow. The closing mechanism takes the form of a disk. Operation is similar to that of a ball valve, which allows for quick shut off. Butterfly valves are generally favored because they are lower in cost to other valve designs as well as being lighter in weight, meaning less support is required.

2.Main Features of the Manual Wafer Butterfly Valve 
1. Small in size and light in weight, easy instillation and maintenance. It can be mounted wherever needed
2. The material of valve body: cast iron, cast steel, cast stainless steel and so on.
3. Pressure grade: 1.6Mpa, 4.0Mpa, 6.4Mpa
4. Connecting type: flange coupling
5. Temperature range: normal temperature -20---230ºC  the thermal slug type -60---450ºC
6. Operation form: automatic open or close
3. Manual Wafer Butterfly Valve Images:
 Butterfly Valve DN80 Turbine Type with Hand Wheel BS Standard

Butterfly Valve DN80 Turbine Type with Hand Wheel BS Standard


4.Manual Wafer Butterfly Valve  Specification:
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)
Disc: DI/ALB/Rubber lined Disc/1.2501/1.4529/CF8/Hastelloy Alloy/Monel
1. What is manual wafer butterfly valve?
A: Wafer style is the more common of the two and is less expensive than the lug style. The wafer style butterfly valve is just about the standard. It ís so common that no one even bothers to use the word "wafer" when ordering a butterfly valve. It is taken for granted that if a butterfly valve is ordered, a wafer style will be received.
2. What is the working principle of manual wafer butterfly valve?
A: A butterfly valve is from a family of valves called quarter-turn valves. In operation, the valve is fully open or closed when the disc is rotated a quarter turn. The "butterfly" is a metal disc mounted on a rod. When the valve is closed, the disc is turned so that it completely blocks off the passageway. When the valve is fully open, the disc is rotated a quarter turn so that it allows an almost unrestricted passage of the fluid. The valve may also be opened incrementally to throttle flow.

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Q:how to protect a foot valve?
most foot valves i have bought come with a strainer attached perhaps you should look for that type. if your valve has a strainer you may consider making a further coarse strainer out of a ball of chicken wire and place this over the foot valve assembly(thats what i do for the cold water supply to my house) don't compress the chicken wire very small as it will block up i tie the wire filter on with galvanized wire then i can easily replace it if necessary ps i tried stainless steel pot scourers but they were to fine and blocked easily
Q:i'm being charged $300 to replace a 75gallon water heater valve, is that too much?
on the high side 60 bux other than that you can get half a new heater for 300$ crazyness/
Q:***10 points**** Which set of valves closes when the ventricles contract and relax?
Atrioventricular valves close when it relaxes and the lunar valves close when it contracts
Q:where is the bleeder valve?
Yes it does have a bleeder valve, it should be on the side or in cooling hose, if your coolant has been low and you added you have air in the system, open bleeder valve till flow comes out smooth while engine is running and warm, when good flow is established and radiator is full close valve, should be good to go and will now be full and no more heating up.
Q:Prognosis of my bicuspid aortic valve?
Most patients with bicuspid aortic valve whose valve becomes dysfunctional will need careful follow-up and potentially valve replacement at some point in life. Regular EchoCG and MRI may be performed. BP reading (1) 160/85 mmHg. Stage 2 hypertension (Isolated systolic hypertension) (moderate). If the systolic blood pressure is elevated (140) with a normal (90) diastolic blood pressure (DBP), it is called isolated systolic hypertension. Pulse pressure is 160--85 = 75 mmHg. Optimum pulse pressure is 40 mmHg. A higher pulse pressure may mean your heart's valves are leaky (valve regurgitation). BP reading (2) 138/75 mmHg. (Prehypertension) Pulse pressure is 138--75 = 63 mmHg. Pulse pressure 40 mmHg is abnormal. BP reading (3) 157/85 (Stage 1 hypertension) (mild) Pulse pressure is 157--85 = 72 mmHg. Cardiovascular mortality risk doubles for every 20 mmHg of systolic BP or 10 mmHg of diastolic BP over and above the normal blood pressure of 120/80 mmHg.
Q:1999 Pathfinder Suction Control valve?
hold the computer near the Pathfinder it will suck data directly off the internet (NO WAY) what you need is a complete diagnosis by a experenced Technician or a Nissan Technician. Idle control is on the bottom of the throttle chamber or on the intake manifold. Stalling and Dieing may be caused by a Distributor or air flow meter fuel pump or clogged up fuel filter. Suction control valve in not a part on your year pathfinder good lick
Q:What valve causes the most restriction?
VALVES CAUSING RESTRICTIONS? WTF? When they are CLOSED or not open all they way, they can cause a restriction. Otherwise, in and of themselves... valves do not cause restrictions.
Q:Bent Valve!!!!!!!?
Q:Mitral Valve Stenosis?
Mitral stenosis (MS) is narrowing of the mitral orifice impeding blood flow from the left atrium to the left ventricle. The (almost) invariable cause is rheumatic fever. Common complications are pulmonary hypertension, atrial fibrillation, and thromboembolism. Symptoms are those of heart failure; signs include an opening snap and a diastolic murmur. Diagnosis is by physical examination and echocardiography. Prognosis is good. Medical treatment includes diuretics, β-blockers or rate-limiting Ca channel blockers, and anticoagulants; effective treatment for more severe disease consists of balloon valvotomy, surgical commissurotomy, or valve replacement. The normal area of the mitral valve orifice is about 4 to 6 cm2. Under normal conditions, a normal mitral valve will not impede the flow of blood from the left atrium to the left ventricle during (ventricular) diastole, and the pressures in the left atrium and the left ventricle during diastole will be equal. The result is that the left ventricle gets filled with blood during early diastole, with only a small portion of extra blood contributed by contraction of the left atrium (the atrial kick) during late ventricular diastole. Patients with mitral stenosis prompts a series of hemodynamic changes that frequently cause deterioration of the patient's clinical status. A reduction in cardiac output, associated with acceleration of heart rate and shortening of the diastolic time, frequently leads to congestive heart failure. In addition, when AF sets in, systemic embolization becomes a real danger. Please undergo echocardiography test and check whether you have other heart defects such as mitral regurgitation and aortic insufficiency.
Q:Biological or mechanical heart valve replacements...?
Always a tough call. You might want to see if you can find a copy of Lewis Grizzard's book, They Tore Out My Heart and Stomped That Sucker Flat, which was about both his aortic valve and his ex-wives. Unfortunately, he died from surgical complications with I think his third valve replacement, but you needn't tell your friend that part.

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