DCI Double Ball Air Valves

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Product Description:


Double flanged Double Eccentric Butterfly 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:two way one way valve?
If I get your idea right, you would have two separate one way valves, one in each tube, facing in opposite directions. When you inhale the valve that opens provides air from that tube and the other one remains shut because the suction is pulling it closed. When you exhale, the inhale valve is pushed closed by the air pressure from your lungs and the exhale tube valve opens from the pressure provided by your lungs. Consider spring loaded valves if there are problems with the pause inbetween enough positive and negative air pressure in the tubes.
Q:mitral valve regurgitation In Toddlers?
my nephew had it and needed surgery.
Q:2002 Chevy Malibu EGR Valve?
Cleaning it could make it worse then your experiencing now, but if you want to here's the steps. There are two bolts holding the EGR val;ve down. Remove them, and use a can of carb cleaner to clean the carbon out of the two ports that are in the valve. Reinstall with a new gasket and run the car. If the check engine light comes on replace it. I recently got a EGR valve (not recommended but they work) from a local wrecking yard for my folks '99 Venture 3.4 ltr motor, replaced the one on the van because it was throwing the EGR code and it worked fine. No more check engine light.
Q:about how much does it cost to install a backwater valve?
I suggest putting this question anywhere but in cars and transportation.
Q:Difference between Dump Valve and...?
My Dive save gave me the prospect to aim on the I3 interior the pool. Any sturdy dive save could. that's high priced kit which you will have for an prolonged time. It needs to in good condition authentic and paintings for you. besides, cooperative dive shops benefit a lot greater in a satisfied customer than they lose by applying letting you are trying on the BCD. I for you may t walk right into a dive save with out popping out with greater kit. LOL
Q:Any idea on selecting and sizing control valves?
Specialty valves should be sized/recommended by the manufacturer because of the different influences that may be encountered by the valve. Example: Temperature ranges, chemical composition of coolant, type of valve(ball, gate, tempering, other) all will have some effect. I would say take a look at the old one if it exists and if you're not satisfied with its performance, then cross reference it with other companies like Amtrol, Wilkins, etc. This would be the safest most logical method.
Q:2002 Honda Accord P1457 EVAP faulty bypass solenoid valve?
P1457 Honda Accord 2002
Q:what is top entry valve?
Top entry ball valve: One piece body construction, Fire Safe, Full / Reduced Port, Soft or Metal Seated, Antistatic device, Blowout proof stem, Lever operated, Gear Operated or Actuated. Made up of Carbon Steel, Stainless Steel, Low Temp Carbon Steel, Duplex, Super Duplex, Super Austenitic Stainless Steel and exotics like Inconel, Monel, Hastelloy etc.
Q:Tips for building/connecting a sprinkler valve manifold (see details)?
valve manifolds are something that requires practice and experience. i used to struggle with them at work until i did a good bit of them. 3 zones is not that many valves so it shouldnt be too difficult. if they wont line up exactly right, i would recommend adding longer peices of pipe to the mainline side of the vavles and re routing the supply line futher back and you will have more room to flex the pipe and vavles into the Tees and 90s. do not use any form of flexible pipe on any mainline. you will regret it. lol the bigger the hole you dig will give you the most room and the more pipe, and room will give you more flexability to build the manifold. it is easier to connect the valves the way you did it first though, but you can do it either way. good luck and hope this helps
Q:Using a valve spring compressor?
the scoop thing goes on the retainer or (the part that holds the spring in place) first there should be an adjustment on top of the tool where the fork is...put the compressor on the retainer..and adjust the screws until it fits tight on the retainer....then will have to adjust the bottom of the compressor where the handle is so that when you close the handle it pushes down the spring far enough to get the two keepers (two little half moon clips that hold the valve into the retainer....but first before you do anything...u must wear safety glasses if a keeper shoots out of there it may hit u in the face......after you put your glasses on and before you use the compressor take a hammer and hit the top of the retainer that u want to remove...DO NOT HIT THE TOP OF THE VALVE...it will damage the valve and you may end up needing a new one...hitting the retainer loosens the keepers so it will be easy to remove them....when you collapse the handle you can see the keepers in the retainer ..it may be help full to pull them out with a magnet..then slowly release the compassion with the handle and your done....this is hard to do at first and will require some practice to get good at it...be careful u can get hurt using this tool...i have been doing this for 30+ years so i have first hand exp. on both areas good luck

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