Ductile Iron Single Ball Air Valves

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Specifications

PN10/16/25
DN50 ~ DN200

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:in engines otto cycle: short answer more horse power.

Q:when heater heats water there is a small leak thru the releif valve. need answrers to possible reasons for malfuntion. leak is not continous.: Do not open the relief valve, you can scald yourself. It is leaking for 1 of 3 reasons. 1. It was opened once already the spring is weaker now, or the seat is damaged. 2. It did it's job and relieved high preasure at some point with the same affect as #1. 3. It is old and weak, either way it needs to be replaced. You do not need to drain the tank for this since it is on top, shut off the water turn it off and let it cool before you open any lines. Good luck.

Q:Okay, so when I was little, I had heart surgeyue to a congentital heart defect and I now have a leeky valve, on my aortic valve and i was wondering if it didnt go away would I need to get heart surgery? Or would it need to get bigger?Will it only get bigger or will it alwayse same? If I need heart surgery how long would that be??? have had it since 3rd or 4th grade and I am now in 8th grade. I am just wondering...: as the doctor said, Could be many issues eventually something will need to be done without the big words ... your Aortic Valve is the MOST important valve in your Body because all the oxygenated Blood that flows From your lungs to each cell passes through the Aortic valve into the aorta and to each cell... More then Likely at some point in your life, the Valve will most likely need repair or replacement.... The good news is... that these are being done quite Normally now in Most Large Hospitals these Days... something to consider if you live in extreme rural places... I would mention that You should have a baseline idea of what is normal exertion for you, and at any point, you begin to feel breathlessness, tireness (above beyond normal) Chest Pain .... Do YOu Have chest pain Now, which is normal then anything above and beyond that should be something you should go to a doctor or even a real hopsital... so with that being said how are you feeling? what sorts of exercise do you typically do? play any sports ? gym? ride a bike? text ?lol point is if things change dont ignore it get to the doctor right away.. if you dont have a doc yet , how about a hospital?

Q:can you put a blow off valve on a chevy cobalt ss supercharged?: the correct answer is yes and depending on the size it may be critical. turbos use a waste gate while blowersaka super chargers need a blow off vale to prevent to much pressure in the cylinders. causing a blown head gasket, blown intake gaskets, or even blowing the blower off the top of the engine. If you ever look at a car that is set up with a real blower on the back of the intake manifold there will be a plate held in place by two springs, that is the blow off valve.

Q:What's the safety valve (relief valve) type?: The four common types of pressure relief are the spring loaded valve, the rupture disc, the balance bellows spring loaded valve and the pilot operated relief valve.

Q:My chevy s-10 pickup automatic is shifting rough from 1st to 2nd, gives the truck a bump when shifts. Tech says I likely need a valve body replacement. He also indicated I could drive this for a while if I wanted. What more can happen if I prolong replacement? Truck is still at a fair blue book value and I'm wondering if I should sell it now. I have been very lucky in not having to sink any $ aside from normal wear and tear into it, so for me to have it replaced is the first $ investment. I have 103k miles for 2000. Anyone else in a sim sitch, or having multiple problems at this mileage as well? I'm wondering if this is the begininng of the end?: Chevrolet did have a bad problem with valve body wearing out the bore where the valve rides. I would recommend you replace the valve body too, unless it has high milage and the transmission has never been overhauled. Then I would say sell it now! They also have a problem with the reaction shell breaking or stripping and causing a no reverse problem. Those usually go out around 150,000 to 170,000 miles. So if your in that range, and you haven't had it rebuilt or you don't want to spend the money to rebuild it. I would recommend you selling it now.

Q:There has been brake fluid leaking below where the Master Cylinder was and pinpointed that the leak was at the base where the steel lines and proportional valve intersect(kinda sprays out out like if a seal is bad or someone didn't tighten enough). Any way to fix this or replace? Vehicle is a 1988 Plymouth Reliant (2.2 liter) Auto, no ABS.: no count number if it incredibly is a proportional valve a 24 volt supply won't supply proportional administration. to boot, controlling an inductive load with a persevering with voltage slows the reaction time.

Q:I bought a Bb trumpet from Ebay (I know, probably not the best idea) and when it arrived it was really good, except the valves. They wouldn't go down (or up) really well, so I oiled them, and it helped, but it still won't go up properly (it might go up halfway, then suddenly stop, then go up slowly). The valves sound like they're scraping the side a little, and valve oil doesn't do much good. I don't know what brand it is, so don't ask. Another thing, is there such a thing as over-oiling?: When dealing with complex and artistic things such as musical instruments, ALWAYS buy form where you can trust, and preferably from where you can test the item out.

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 .?: Sounds like you should clean your engine, then take a look to see where the leak is. Have you tried tightening the valve cover bolts?.

Q:I went to turn the water off with the shut-off valve so that I could do some work on the toilet tank (replacing old and leaky fill valve) but the water won't shut off. I'm assuming that I'll need to replace the shut-off valve itself but could anything else be causing the problem? The funny thing is, the leaky fill valve that I wanted to replace has now stopped hissing and leaking and the tank seemingly fills fine. But of course the water can't be turned off completely.Just wanted to check make sure that there aren't anything else I should do or consider before I went off to replace the shut-off valve.Thanks: If you are turning on that valve and it doesn't shut off the flow of water to the toilet, then the valve should be replaced. Now, if it's not leaking, you don't HAVE to replace the valve. But of course, if the toilet overflowed you wouldn't have any easy way of shutting off the water There are many, many choices in replacing valves. You have to determine which kind of valve you have - sweat on, male or female thread, or compression - size of pipe coming out of the wall - size of thread for the fill tube. Once you have that figured out, you do need to turn off the house water before you take the old valve off. One more choice: Spend the extra couple of bucks and get a 1/4 turn ball type valve.

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