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:What would valve seat faulty will cause my h22a?
If the valve seats leak it will cause oil to run down the valve stem and either it gets sucked into the intake or it get pushed out the exhaust, depends if both valve stems are leaking. It would be black smoke not white. Your car will produce water in the exhaust system when exhaust goes through the cat converter this may come out as a white smoke but it should not be something you can see if your driving. If it is that much you have a head gasket problem.
Q:How is the heart valves opening/closing is synchronized with the SA-node firing?
It's all mechanical. The valves are passive things kind of like a screen door. When you push on them from one side they open, when you push on them from the other they close. The valves are assisted by some fibers attached to the inside of the heart similar to the way a screen door is helped by a spring attached to the door frame. It's the flowing blood that pushes the valves open or closed as the heart pumps. The path that the blood follows in the heart as it beats happens to make it so that the valves close two at a time. This is because the heart is actually four separate pumps that work two at a time. There's no direct electrical connection to the SA node. The only way they're connected is that the SA node firing is what causes the heart to pump, causing the blood to force the valves open.
Q:Mitral Valve Prolapse Hereditary Info?
Mitral Valve Prolapse Hereditary
Q:Why do Presta valves exist?
See okorder.com/
Q:pcv valves?
Positive Crankcase Ventilation. Added to engines as a emissions control. Actual design function is to suck contaminated fumes from the crankcase back into the combustion chamber to be burned.
Q:Who knows about pneumatic engine valves?
i don't!!! LOL LOL
Q:Insufficient flow EGR Valve?
Could be dirty, or it could be the egr solenoid failing
Q:what does the btu rating mean on a temp and pressure valve?
Don't go by the the old valve, look at the specification tag on the boiler. Do not exceed the temp or pressure rating. If you do, you will only create a time bomb and a big one at that. In no circumstances should you use a valve with a higher rating than the heater!
Q:Mitral Valve Prolaspe??
Some okorder.com
Q:leaking sprinkler valve?
Sounds okorder.com), and so sometimes its almost easier to replace the whole thing. The rain jet valves definitely aren't the best quality either, so if I were you I'd get a better one just to make sure it is going to work for a long time.

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