Double flanged three eccentric butterfly valve

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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:Difference between Dump Valve and...?
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Q:A question about tricuspid valve disease..?
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Q:How to control fluid flow through a valve automatically? What are the circuit requirements?
Some valves are controlled to maintain a fixed pressure on a system. Others control the level in a tank or vessel while still others actually control the flow rate in a pipe or line. The automatic control of flow through a valve requires a sensor to determine if flow is needed or what the flow rate is. You then need a controller to take this input and then adjust the valve to achieve the desired result. This is called a control loop. Some are all electric/electronic while others are all pneumatic. The valve itself is a specific valve designed to perform the function intended. It is not a good idea to take an existing on/off valve like a gate valve and try to control flow. These type of valves do not have a flow characteristic that is proportion to valve opening while a control valve does.
Q:Leak around the power valve?
The kx125 actually has 3 valves in the exhaust, a main, a left-hand one and a right-hand one. Each is fitted with o-rings which require disassembly in order to be reached. This would also be a good time to clean the power valves since they tend to become encrusted with carbon deposits which interfere with their normal operation.
Q:How do you check a pcv valve?
Check on the top of the valve's usually connected to the air intake or air manifold.
Q:Valve corporation information/facts?
i just watched it again.. haven't seen it since it was released. Since then they've made Team Fortress 2 free to play, and any gamer that plays f2p will tell ya.. f2p/microtransactions are the future. Also they came out with Alien Swarm, and amazing isometric shooter where you had to rely on your teammates much like left for dead.. but even more indepth group dynamic. Then Portal 2 of course.. and DotA 2 is still in beta but looking great also. I really think the 1 thing that makes Valve so loved is the relationship it has with its consumer/gamers. Especially in the modding community. I know alot of people like me who will stand behind Valve in all their future games.. and that's perty damn crazy to say for a company that is trying to sell you things... especially in the Video Game world where so many are out to squeeze every dollar out of their customers and IPs.
Q:Are valve stem seals the problem?
The symptom of bad valve stem seals is blue smoke after sitting overnight. But once that smoke is gone, a bad valve stem seal won't have any effect on engine running or idling. And it certainly won't cause a misfire. Worn valve guides can do all those things. You have far more serious problems than just valve stem seals. Get a wet/dry compression test and a cylinder leakdown test to isolate the problem to either valves or rings.
Q:Blocking off your egr valve???
If your vehicle has to pass an emission test in the state where you live, it will fail due to high NOX emissions. Aside from that, it's illegal in all 50 states. Generally speaking, blocking off the EGR will result in poorer fuel economy, possible engine detonation or pinging and higher combustion temperatures.
Q:Trumpet valve problems!!!?
The trumpet has to have the valve holes lined up with the trumpet air passageways in order to have your air proceed by the trumpet and characteristic a sound produce. Your valve must have an computerized locking mechanism (the small piece of plastic close to the spring). now and again this receives worn down, and the valve gained't line up wisely. To treatment this, you should locate the starting up turning position of the valve and tighten the valve starting up there. i imagine that is ninety degrees to the left at the same time as the bigger plastic piece is dealing with the mouthpiece aspect of the trumpet.
Q:Trumpet Valves Sticking?
Have you tried cleaning the valve casing (what the valve moves in)? If not, you can use a clean cloth that won't leave fibers in there, or a valve casing brush (couple dollars at the music store) to clean the inside. Many times dirt builds up at the bottom of the valve casing where it's supposed to and the valve eventually gets stuck in it. Also, like the poster above said, the plastic/metal guide could be getting caught. You can use slide grease to lubricate the slot in the top part of the valve (not the casing) where the guide moves. Just don't get any on the piston part of the valve. If all else fails, it is possible that the valve was not honed correctly at the factory and a professional will need to fix it.

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