Ductile Iron Soft Seal Swing Check Valve

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Product Description:


Swing Check Valve

DN100 ~ DN2000

Technical Specifications

- Design and manufacture: EN593, EN1074-1 and 2

- Face to face dimension: EN558-1 Series 14 (DIN3202 F4)

                                              EN558-1 Series 13 (BS5163)

- Flange dimensions and drillling: EN1092-2 PN10/16/25

- Size range: DN100 - DN2000

- Max. working pressure: 1.0/1.6/2.5 MPa

- Inspection test: EN12266

- Working temperature: -15°C to +80°C

- Suitable medium: water

Main Fetures

- Double eccentric disc reduces seal wear and torque

- Body seat ring is welded directly on the body

- Bi-directional flow and low head loss

- Disc sealing ring to be replaceable on pipeline without dismantling the valve

- Body and disc inside and outside epoxy powder coated (min. 250 microns)

- Opening and closing indicators are provided

- Coupling flange for electric actuator in compliance with ISO5211

- Gearbox and electric actuator operation available

Main Parts and Materials

Body and disc: ductile iron EN GJS500-7/400-15

Shafts: stainless steel AISI 420

Body seat ring: stainless steel AISI 304

Disc sealing ring: EPDM or NBR

Retaining ring: stainless steel or ductile iron

Shaft bearing: Du bushes (self lubricating bushes)

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Q:what is a power valve?
The powerband is caused by tuning an engine, they are most noticeable on a small lightweight 2-stroke. When you are riding and you change up too early you will have noticed the bike slows down and does not accelerate very well, but if you keep the rpms within a certain range it will accelerate smoothly – that is the effect of a powerband, it can be moved up or down the rev range by altering the ports and by changing the harmonics of the expansion chamber (the trumpet shape of the exhaust system). Either your garage is having a laugh at you or they are hopeless – I suspect the former. EDIT: You make it faster by tuning it – making it less reliable and these bikes are already peaky. If you make them more peaky you will need to run them at higher revs – higher revs = more power from available torque, therefore you do not want to move the powerband down the range or broaden it. Changing the sprockets will not improve acceleration AND top speed it is one or the other.
Q:Removing shut off valve?
It sounds like a compression fitting.Use two wrench's. Hold the bottom nut with one then turn the valve with the other. If this doesn't do it then use a tubing cutter below the valve (assuming the line is copper) and cut off the old valve and put a new compression valve on.
Q:Removing washer hoses from shut-off valves......?
for really bad ones you can cut diagonally across the snout of the hose connector with a hacksaw until you just break thru. slow and gentle is the key here. this method removes even the most stubborn hoses.
Q:Anyone know anything about mitral valve prolapse?
I have mitral valve prolapse and have lived with it for quite a while. I take no medications for it all. It's more common in females than males, and is usually not a cause of major concern. If your symptoms are worse than before you were diagnosed than you should consult your MD . Some people with mitral valve prolapse require surgery but that is rather uncommon. As with any heart issues there are degrees of involvement. Ask your MD to order an Echo-Cardiogram. It is a non-invasive test, painless and simple. That with whatever other test your MD may suggest should determine how bad the prolapse is. See a (Cardiologist ) is my recommendation. The symptoms that you are having are quite common with this condition, all except the sniffles.
Q:fill valve is squirting water?
Why are you removing the *cover* on the fill valve? That thing was never meant to come off. I hate to say it, but I think you just destroyed your valve. Go buy a new one, they are cheap and unless they went through a redesign since you bought the last one, the seating tube coming into the tank doesn't even need to be changed. Lefty loosey the damaged valve while putting slight pressure in the downward direction and it will pop out. Just install the new one and don't forget the overflow tube connection. Throw the rest of the stuff away, you won't be needing it (if for some reason in the future you do need it you will never find it again anyway).
Q:Aortic valve question?
Sclerosis means hardening. Aortic sclerosis, a degenerative aortic valve disease with thickening of aortic valve structures by fibrosis and calcification initially without causing significant obstruction, is the most common cause of AS in elderly patients. Over years, aortic sclerosis progresses to stenosis in as many as 15% of patients. Aortic sclerosis resembles atherosclerosis, with deposition of lipoproteins, active inflammation, and calcification of the valves; risk factors are similar. Aortic stenosis is the narrowing or obstruction of the heart's aortic valve, which prevents it from opening properly and blocks the flow of blood from the left lower chamber of the heart to the aorta. The aorta is the main artery leaving the heart. Aortic insufficiency is a heart valve disease in which the aortic valve weakens or balloons, preventing the valve from closing tightly. This leads to backward flow of blood from the aorta (the largest blood vessel) into the left ventricle (the left lower chamber of the heart). Causes of increased afterload that can cause LVH include aortic stenosis, aortic insufficiency, and hypertension. Primary disease of the muscle of the heart that cause LVH are known as hypertrophic cardiomyopathies, which can lead into heart failure.
Q:Can vacuum leak come from valve cover ?
get a new p.c.v. vale . and in air cleaner is a a small filter that hose clips to . .most imporent is pcv vale is working and this will stop
Q:can a leaky valve covergasket or old pcv valve cause oil to burn from the exhaust?
the valve stem seals are common leak on these I work with a lot of mitsubishi's
Q:Does a diverter valve make the same basic sound that a blow off valve does?
No. A diverter will typically be installed before any catalytic converter or muffler to allow you to have a free straight flowing exhaust by dumping the exhausted there. it has two out puts and one input. one out goes to stock exhaust one to open exhaust. Noise on demand really. Blow off valves for are for Turbo charged cars and make a whistling noise when they release air pressure when u let off the gass.
Q:What are the reasons a Schrader valve might need replaced?
2 valve 1 low 1 high the valve is cheap (looks like the same as one that goes in a bicycle innertube) but if a shop puts it the labor price for your area, here around 75.00 this dont make sense. to have high pressure there has to be something in the lines. and the valve would be open to give you a reading so unless its leaking its working. with a vac on it and 0 134a you should have a reading of -20(+or-) in of mercury on the low side (below 0) and 0 on the high side. If the high side valve was not depressed (opened) then you would have the can pressure reading (about 80psi depend on temp) only if you tried to fill from the high side. Ok try this find the line going to the firewall and inside the car, this is the low (return) line. dont use the one that goes to condenser at the front of the car (the radiator looking one). find the fill valve and thread on the fitting (may have a cap on it) tighten the fitting until it is tight then use a pair of pliers and turn 1/8-1/4 turn more then try to fill.

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