wafe type 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:I have 6 stations on my irrigation system, i can only find 2 valves outside.?
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:Solenoid Valve Control?
There are dozens of valves on that link, you have to be more specific. Most valves switch between open/close with application / removal of electrical power. Restricting air flow to one direction is done via a check valve, not something that requires power. Air flow will be from the direction of higher pressure to lower pressure. A valve can stop that flow, it cannot reverse it. You can control the valve with a relay, and that with relay driver IC such as a ULN2003, and that driven by a computer. Depending on the power levels, you may be able to drive the relay directly from the relay driver. .
Q:honda hawk cb400 valve gap?
Try okorder.com or usually free down loads.
Q:What is another name for a valve?
Valve comes from latin valva. There is not other name for it in engineering, but some times is referred as a cock, if the valve is used as shutoff valve, it is also known as shutoff cock. For irrigation, sometimes large gate valves are also known as gates. I can give you many names for the type of valves but I can't think of any other name that replaces valve.
Q:Inhaling smoke from valve oil?
Valve oil is basically just mineral oil and various other ingredients. You can buy pure oil, and it's also the main ingredient in baby oil and other medicines. Nothing wrong with burning it.
Q:Tire valve stem recall....?
I'd have to say they will probably supply you with the new valve stems for free, but you may have to pay to have them installed (unless you know how to do it yourself.) We had a fuel pump recall and they sent us a new one but we had to install it ourselves. Good luck!
Q:Mitral valve?
Mitral valve prolapse refers to a condition in which the leaflets of the valve are large and floppy compared to the average. When the ventricle contracts, the valve closes and the flow causes a pop as the floppy leaflet fills with blood, much like the way the wind fills a sail. This extra pop can be heard with a stethoscope (like a click) but it can often be felt by the person affected which makes them more aware of their heartbeat than the rest of us. Mitral Valve regurgitation is a condition in which the mitral valve leaks after it is closed leading to a loss of efficiency of blood pumping and a drop in blood pressure. It is often a small leak and is of little consequence and is often associated with mitral valve prolapse. This leak can sometimes be heard with a stethoscope as a murmur under the left arm. The combination of both situations is known as Barlow's click-murmur syndrome. Old Doc
Q:valve and burner pipe connection on gas grill?
Brush on some soapy water solution around all fittings and turn on the tank. If your not comfortable with it wait and have someone else check it out.
Q:Sticking Intake Valve?
Weird that it runs better under load. Try spraying carb cleaner into the carb while it's running to see if it can remove some carbon build-up or whatever might be causing the lifter to stick. Be careful about how much you spray..too much and the engine will shut off. Spray it until it sputters, let it recover, then spray some more. Check the spark plug. A badly fouled, improperly gapped plug can cause similar problems. Of course clean/replace the air filter.
Q:Why do some baritones have 3 valves and others have 4?
The forth valve on the baritone is the same as the trigger on a trombone - it lowers the pitch 2 1/2 tones to extend the range downward, to assist in improving intonation, and to solve so tricky fingering problems. You can learn baritone quite easy, if you relate what you know on the trombone to it. Here is a quick lesson on valve playing. Trombone position Baritone valves 1 Open 2 2 3 1 4 1 2 5 2 3 6 1 3 7 1, 2 3 Trigger 4 On high F#, you must play 2 3 On High G, you must play 1 2 Good Luck! It is a great and wonderful instrument to learn, and will help you trombone playing, too!

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