Double Flanged Metal Seal Swing Check Valve

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Specifications

Double flanged Double Eccentric Butterfly Valve
PN10/16/25
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)

Q:what is a foot valve? how does it look? what is the application in petrochemical companies?: A foot valve is simply a check valve. It is common use in a piping system at the pump suction side. By placing it this way when the pump stops operating, fluid won't flow back into the lower reservoir and the suction side of the pump is always full of liquid.

Q:primary function of a valve position?: ...to control flow.

Q:Well I had a Anginogram that said I have Mitral Valve Stenosis with the LVEDP was Moderately Elevated and My Right Ventricular Moderately Elevated and My Right Atruim is Moderately Elevated what do all this mean I see my cardiologists in two weeks to go over things. Oh yes they don't say how much the Mitral Valve is narrow.: Not sure I understand the question. Stenosis just means hardening, so if your valve is stenotic, your heart is having to work harder to push the blood through the valve. This would cause your left ventricle to enlarge to compensate for the increased demand.

Q:Would it be cheaper to get a toyota Valve body U140/240 repaired or would it be easier to swap it out... by the way the transmission valve body would cost $780: LOL okorder DETROIT MICHIGAN! $780, my SORE LEFT FOOT!

Q:Can a leaking car tyre valve be repaired/ replaced, or is it more viable to get a new tyre fitted with a new valve?: The actual valve can be unscrewed from the valve stem and replaced. If t's the valve stem that needs replacing this is done from inside the wheel/tyre combination. It may be possible to deflate the tyre, push one side inwards off the rim and get to the valve stem, but it's a lot easier to take it to a tyre depot and have it done properly. The real difficulty with a DIY job is getting the tyre sealed on the rim again. With an air line it's easy to put air in fast enough to reseat the tyre, with a foot pump it's almost impossible

Q:is it possible to check valve to piston clearance with out taking the heads off? I want to buy a bigger camshaft for my 351 windsor stock pistons with 1970 heads. cam is 230 duration (280) and 512 lift: No you can't check the valve to piston clearance without taking the heads off. I had a 289 bored out to 351 and ran stock 351 pistons. So your stock pistons should work with the new camshaft. I know I'm a girl but my husbands a mechanic and for fun we rebuild muscle cars.

Q:Cylinder head valves.Can't really differentiate the difference between burnt and just carbon build up on valves. Are they the same?If I the valves have no cracks or holes, can I clean the carbon off of them and reuse them.If they don't leak when I re-leak test them, are they then good to use?Had very little compression in one cylinder.What cleaner is safe to use on the valves?I know I should replace all, but any money I can save right now, helps a lot.Also I seen a method of re-lapping the valves by using a tool (stick with a suction cup on end that sticks to valve surface) that you spin while valve is seated. It refinishes the seat and recreates the seal/re-laps. Appears to work and seal just fine. Anything really wrong with this method?: if the head or heads are off then why not take them to a machine shop ! they will grind the valves that are still good and replace the ones that are burnt up and they will make sure they seat good ! if you have low compression just on 1 cylinder then it might be a compression ring stuck !

Q:Our water heater (bought in 2007 so still fairly new still under warranty luckily) seems to release water from the pressure release valve quite frequently. Everyone seems to say that it shouldn't do it often and ours probably does it a couple times per day. 2 main questions - 1. Is there really a risk of too much pressure building up and the water heater exploding (that's what the sales guy at Lowe's said) and 2. Any idea what the problem might be/what we should check out?: Theres no risk of the water heater blowing up if the relief valve is doing what is supposed to.But i recommend a professional check out the installation.Do you know if you have an expansion tank installed on the cold water side? We put one in on every water heater installation.A professional will also check system pressure-some houses have a Pressure Reducing Valve (PRV) and they can fail.You need to check static and dynamic pressure both.And finally sometimes relief valves fail too.If you dont know how to check these things,call a professional.

Q:if i put a power valve on my honda xlr 125 would it make my bike have faster acceleration: A power valve is a device that manufacturers fit to the cylinders of highly-tuned 2-stroke motors. It's purpose is to vary the timing of the exhaust by changing the height of the exhaust port(s). This is done in order to allow these motors to retain some bottom and midrange power. A Honda xlr is a 4-stroke so you cannot fit a power valve to it. The exhaust port in a 4-stroke is in the cyliner head, not the cylinder wall, and it's timing is controlled by a cam acting on a poppet valve.

Q:I want a valve sound that is clean and 'true', but I also want pre-sets. Someone said that digital pre-sets distort the valve sound.: ?

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