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: can you spray WD-40 on it so you can turn it off?: Shouldn't be toxic. But I'd try just working the valve back and forth to see if I could loosen it.

Q: Between these two Blow off valves around the same price, what would be the best choice for a pt cruiser.: The Mopar Performance blow off valve is really going to be your best bet if the two are roughly the same price. The reason I say that is because the Mopar unit is designed to fit onto that car, therefore it is engineered to release excess pressure at a safe level for that engine. The Greddy unit is also going to typically require modification to make it fit and function properly. Unfortunately, what they don't tell you about universal units is the reason they are universal is because they don't fit anything until you make them to fit, you just have enough material and hardware to get creative with it. If you are looking to extensively modify your engine, then it may benefit you to go with the universal unit and just wait until you have your piping cut exactly the way you want it, this may give you better location or clearance using the aftermarket unit, but otherwise like I said, I would go with the factory performance BOV. If you have any further questions about your cruiser, please feel free to email me, I have had a cruiser for a couple of years now and have also done lots of customizing to cruisers for friends.

Q: hi im 13 years old and i am having my tricuspid valve repaired or replaced the doctors do know what they are going to do yet.what is the success rate of the operation ?and whats the survival rate of the operation ?all other info would be appreciatedthanksalex: you in straightforward terms choose surgical operation whether it rather is ruining your life or if the surgeon thinks it is going to without warning worsen. Open coronary heart surgical operation contains an significant possibility. in the event that they carried out it on each and every case of something being incorrect, greater human beings could be worse off after the surgical operation than till now the surgical operation.

Q: Is it posible there is underground valves? I looked all over my yard and can only find2 valves.???: Yes, electric valves are set on the Mainline which is under pressure. Usually in a loop around the home with the valves set where the zone starts. Some are designed to have a short mainline with the valves set in a large box next to a vacuum breaker. All valves need wires that run from the clock. Sorbet can be found with a metal detector if you simply can't find them. You can also set them to go off manually time delayed a few minutes, enough to go listen to hear the valve opening.

Q: Liquid propane leaving the reflux pump of a distillation column flows through a 3.5 in ID pipe at a flowrate of 90 lbm/s. There is a flowrate control valve in this line, and it is set such that the pressure drop across the valve (delta)P=15 lbf/in^2. Upstream of the valve , the pressure P1=18 bar and the temperature T1=310 K. Assume there is negligible heat transfer with the surroundings and that the density of the liquid does not change significantly.a) What is the kinetic energy change across the valve?b) What is the enthalpy change across the valve?c) What is the temperature change across the valve?d) What is the entropy change across the valve?: If there is NO change in the density of liquid propane as it passes through the valve, and if the size (area) of the pipe upstream and downstream of the valve is the same, then a) there will be no change in the velocity of propane, hence there will be no kinetic energy change. b) this is a process of throttling, with no change in kinetic energy, hence there is no change in the enthalpy. c) temperature change can be determined using the detailed property table of propane, but if it is an almost-incompressible liquid, then this too, will be negligible. d) dh = T ds + v dp. Since there is no change in h, integrate this along a constant h line from inlet to exit (upstream to downstream) and you will get ds = -(v/T) dp. Since p reduces from inlet to exit, the change in entropy will be positive. This is as expected. If we assume density (=1/v) and temperature (T) to remain constant, then the change in entropy will be s_downstream - s_upstream = (p_upstream - p_downstream) v /T.

Q: We have a wall mounted shower head as well as a ceiling mounted shower head. Suddenly the turning valve for the wall mounted head does not work, only the ceiling one does. Is this stripped. Can it be repaired with a marble wall? I have a photo if needed. Thank you ahead of time. Patrick: The mixing valve is in the handle that turns the water on. You don't need to take down the wall to get at it. The handle come off including any cover plate and the valve is right behind it. Be careful not drop/lose any screws or washers. They are small. The home center sells replacements for certain brands so get that information.

Q: im 16 and im rly scared i have already been checked out by the hospital and they sed that i have a moderately leaky heart valve. They recommended me to see a childrens cardiologist since they dont specialize in children. i have to get another echo and some other tests done i think. im so nervous. whats going to happen to me??: dont mind buddah ,youl be fine 1 in 5 people have it and never know but you can live a worry free full life just like anyone else as long as you look after yourself

Q: I have a 03 civic ex with 96k how important is it that I do a valve adjustment. The engine runs smooth.: the factory maintenance manual calls for the valves to be checked and adjusted if necessary every 110,000. unless they're noisy (loud tapping) they probably don't require adjustment. The older Civics were very sensitive to the valve adjustment but the 2003 won't give you any problems if the valves aren't noisy. that being said, if you notice a decrease in performance or fuel economy around that mileage it won't hurt to get them checked and adjusted. hope that helps

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.: As long as the signal path isn't overloaded, the output can be clean in a tube circuit just like solid state. Pre-sets usually just vary the pre-amp signal before the power amp circuit. If you use a loop, you're taking the pre-amp signal, effecting it, and then giving it to the power amp. Some tube amps come with presets and effects now, like the Line 6. A tube amp purist will want nothing in the way of the tube circuits - they will just use the channels on the amp to switch between sound set-ups - like Clean Distorted, etc. It's not that a controller will distort the tone, it's just that it may color it somewhat.

Q: like they say on 4 strokes you gotta go get valve jobs, and they cost bout 300 they say? well what does the mechanic do? can it be done at home and your just adjusting them?: i'm 18 and race a crf40r i admire the motorbike. in case you desire to flow extra decrease priced i might decide for 2 stroke. have faith it or not 2 stroke is extra maintence even though it is lots extra decrease priced to rebuild. A 2 stroke on long tracks with enormous sweapers is purely as speedy as a 450 if not speedier. I enjoyed my 250 haha. 450's are somewhat a combat on the song they supply a real undesirable arm pump by using engine breaking. and 250 4 strokes are like driving the previous one hundred twenty five's all you do is shift. in case you may desire to get an rm 250 2 stroke they have the extra appropriate potential bands and have very solid bottomw end.

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