DCI Double Ball Air Valves

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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:I was diagnosed with Mitral Valve prolapse...I'm 21, 5.5 tall and 130lbs, I had a healthy lifestyle...my doctor said that my case isn't really sever..but i'm taking medications to keep it this way...something i cannot ask my doctor about, would intercourse be harmful to me? and how should I deal with it??? is it okay for me to have children in the future? and could my MVP be cured without surgery??: good blood does not mix with bad blood. The values have nothing to do with that as the two sides of the heart are separate. With Mitral valve incompetence or prolapse, the valve does not close like it is suppose to. That allows back flow of blood. If bad enough, the treatment is a valve replacement. With Mitral valve stenosis, the valve does not open like it is suppose to. That prevents flow through the valve. The treatment is a valve replacement or sometimes a simple cut in the valve to relieve the stenosis can be done. Either way, if bad enough, surgery is needed, not pills.

Q:It has been known that although tissue valves have lower rates of thrombotic episodescompared with mechanical valves, they are difficult to procure, and their longevity has not yet been proven. Is this true as of 2007? Thanks for answering.: I was told that the type of replacement you get often relates to your life expectancy. This is because while medical teams say they will replace a replacement once you have had the surgery you will realize its not a choice to make if there is any other option. They remove the hart and fix it up and put it back in its no fun. If you have a chance of outlasting your tissue valve get a baked carbon valve and join carbonvalvers.

Q:I wanted to clean my 2005 accord ex 2.4 idle valve. I'm not sure where it's at any pictures or websites ? And will cleaning it make any difference: Probably won't help. Idle Air Control valves are blamed probably ten times as often as they are at fault in Honda engines. It is mounted on the side of the throttle body and has a connector with wires instead of hoses. You don't mention why you are interested in the IAC valve, but if it is because of idle hunting (revving between about 500 rpm and 1500 rpm smoothly and rhythmically), a bubble in the coolant is by far the most common cause. If the coolant is changed and not bled the normal idle speed can't get hot coolant to the Fast Idle Thermo valve (FITV) so it figures the engine is cold and the valve opens to raise the idle. That raises the coolant to the FITV, which then decides the engine is warm so the valve closes, dropping the idle speed, over and over. Burping the coolant, by opening the bleed nipple on top of one of the radiator hose housings at the engine half a turn until a steady stream of coolant comes out, should stop that. Do it with the engine cold.

Q:Where do I get a electric valve with a 120 VAC coil: Cheapest okorder /... Grainger being a major supplier of parts - note the high cost of many of these because of being high temp steam and hot water under pressure and look for other choices.

Q:My house has hot water baseboard heat. In the basement, there is a wood burning stove (now it is like a radiator) that has the pipe system going through it Between the pipe in and the pipe out is a valve. Does it have to be opened or closed all the way? There is no other way to control the heat in the basement I was thinking of opening the valve half way, but I do not want to destroy the valve.: There are basically 2 types of valves, gate valves and globe valves. Gate valves are designed to either be opened all the way or closed all the way. Globe valves are designed to be able to throttle flow proportionately. They can control flow from 0% too 100% or anywhere in between. Setting your valve to the halfway position will not harm it, regardless of what type it is. Experiment with it a bit to find the setting that works best for you. Be aware that if you reduce the flow of water through the heat exchanger portion of your wood stove, the heat will have less water to be absorbed into. That could result in the water overheating and turning to steam. That will cause pressure to build in the line or pipe. Too much pressure will burst the pipe and could be hazardous.

Q:what's the differences of American standard valve standard and Europe valve standard.Like API598 and ISO5208 , EN12266 valve inspection standard, or API600 valve design manufacture standard,and EN598,: It is hard to say generally. Each valve standard will cite other relevant standards, so it is API system and ISO system. Usually it has some differences between API and ISO valve, but it is similar. Most time the design Principal is same, the structure of valve is similar. For example , API swing check valve, it has an hanging system without bolt outside of body, but DIN swing check valve has an bolt for stem. The dimension obviously is different, API calculated by inch, but ISO usually use metric unit. Of course it can be transformed to same dimension. Below is some API standard, and ISO or DIN Standard. We are just able to discuss this topic for specific standard. For API598 and ISO 5208, in my opinion, it is a little different, but in fact, the differences is not very big, if an valve able to pass API598, usually same for ISO 5208. Same for ISO5208 to API 598.

Q:The time has come to re shim my 06 450, and I am having a small problem (I think anyway). The exhaust valves have decreased to below the required spec and need to be replaced with thinner shims (as is usually the case), but the left intake valve has for some reason increased its valve clearance (from 0.16mm to 0.23mm). Is it normal for the valve clearance to increase? I thought they would only decrease... Any ideas? Unless the valve is being held open by something. Many thanks, Jim: You want to do a clearance do you? Blow up the car.

Q:compare the structure of the tricuspid valve with that of the pulmonary valve??please help me: Inga, Valves are flap-like structures that allow blood to flow in one direction. The tricuspid valve is located between the right atrium and the right ventricle and prevents the back flow of blood as it is pumped from the right atrium to the right ventricle. The pulmonary valve is the structure in the pulmonary artery consisting of three flaps, which open and close during each heartbeat. The flaps keep blood from flowing back into the heart from the pulmonary artery which is the artery that supplies blood to the lungs. Hope this helps matador 89

Q:Beneath my kitchen sink are two shut off valves for the water; one for hot, one for cold. The hot water valve has never successfully stopped all water flow, so we've always resorted to shutting off the main line. Well, now that's not working. We shut off the main water line to the house, all water everywhere is non-functioning except for the hot water pipe beneath my sink. It's now causing the faucet to constantly stream water, so it's something we have to resolve ASAP. I'd like to avoid calling a plumber, but my knowledge in such areas is very limited. Can anyone give me any decent suggestions? For the record, I did take apart the faucet fixture just in case, thoroughly cleaned it, and replaced all of the washers I had access to; but we only just bought the faucet in September, so I can't see a worn washer as being the problem. I also tried to tighten the nut behind the handle on the valve. It didn't effect the dripping.: Leaking Kitchen Sink

Q:I have a trumpet, but unintentionally dropped it. When I started playing, I noticed that the first valve was very sticky. Therefore, I decided to put some oil on it. Despite the oil helping a lot, the valves are still sticking a bit when I push them down, as the key still stays in the valve for a few second before coming up again. It could possibly have a slight dent, but when I opened the valve, I did not see any damage at all. Are there any suggestions? And if it is dented how much would it cost to repair it?: My valves have had many issues over the past few years. Your problem is either 1. horn is dirty 2. there is a tiny dent (even 1/2mm is enough to stop the valve, happened to me last month). If your horn is dirty, there are plenty of youtube videos on how; it generally involves using water and rising all the gunk out. You could also have too much oil buildup. If there is a dent, don't even try to repair it yourself--it is waaaaay to hard, and you'll ruin the instrument even more. Take it to the store; it should only cost $20-30. I suggest you clean the trumpet first and then try to get it fixed if it is not good.

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