Ductile Iron wafe type butterfly valve

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Product Description:

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)


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Q:Triple Eccentric Butterfly Valve?
Good question but I think I found your answer. Hope this helps. Triple eccentric means:- 1)First eccentric is the offset between the shaft centre line and the disc trunnion centre line. 2)Second eccentric is the offset between the body centre line and the disc centre line. 3)The third and the most important is the eccentric in the sealing(multiple) itself such that if you draw a imaginary contour line between the sealing shape vs the body centre,It becomes a cone with one side flat on surface.(I hope my words are clear enough to make you understand). The reason for this shape is because it gives better sealing ability for the valve.eg:- Fire safe valves are triple eccentric valves which are also called pyrogenic valves.The sealings are multiple in nos. and together they form a pyrogenic shape therefore this sealing is also called pyrogenic sealing.
Q:All the Valves of the Heart?
the bicuspid is the same as the mitral valve it seems like anatomy has 12 names for everything In anatomy, the heart valves maintain the unidirectional flow of blood in the heart by opening and closing depending on the difference in pressure on each side. They are mechanically similar to reed valves. There are four valves in the heart (not counting the valve of the coronary sinus, and the valve of the inferior vena cava): The two atrioventricular (AV) valves between the atria and the ventricles, also called tricuspid and bicuspid. The two semilunar (SL) valves, in the arteries leaving the heart, also called pulmonary and aortic. This I know for sure. Drawing pictures always helped me keep it straight and I just got an A in anatomy. best of luck to you
Q:Gas safety valve does not work for thick slurries?
I suggest that you rethink that application. Even if the valve does function it might not pass enough slurry quickly enough to relieve the pressure overload.
Q:Are valves connected to tbe whole rocker arm assembly?
The valves are not connected to the rockers, do you plan on removing the rockers or valves and why?
Q:MK4 VOLKSWAGEN BORA EGR VALVE?
The EGR valve or Exhaust gas Recirculation valve is placed on the exhaust gadget. those frequently get hung up with rust and different exhaust deposits. The motorcar might want to be less than production unit assure being in easy words 3 years old. i might want to examine with a broking service to work out if the motorcar and/or section continues to be less than assure. A defective EGR valve will reason the computing device to make the incorrect settings to the gas and air mix causing the engine to run too prosperous or too lean. Its no longer too unfavourable contained in the little while period, yet your gas mielage will struggle through, and also you are able to fail a state inspection so get it repaired previously then.
Q:Plumbing question - Fill Valve?
They okorder.com/
Q:effects of a bypass valve on a car?
bypass valves are for cars with forced induction IEturbocharger,supercharger it allows the air that would normally be expelled into the atmosphere blow off valve and instead putting it back into the intake which helps with less lag in building boost again. If your car is not turboed or supercharged then forget it.
Q:how to replace 1991 honda accord heater control valve?
Honda guy has the terrific answer, yet I also have a pair issues to characteristic. whether that is like my daughter's 1993 Accord, that is extra handy to do from under the vehicle than above it. if so the converter warmth safeguard is close by and it badly decrease my wrist whilst i attempted to get the valve hose off the heater center - placed a rag on that depraved concern. Be very mushy whilst wrestling the hose off the heater center pipe that sticks interior the process the firewall - the pipe is skinny brass and easily deformed. that is terrific to diminish the hose lengthwise and peel it off, and wait and notice. you will opt to interchange that little bit of hose besides. EDIT - one extra concern. After refilling the coolant, discover the nipple (in all probability on the thermostat housing) for bleeding the trapped air out of the cooling device. Open it a million/2 a turn and close it whilst a mushy flow of coolant comes out. correct up the radiator - keep in mind, constantly use ideal coolant diluted in accordance to instructions with purified water, under no circumstances faucet water. existence is sturdy.
Q:95 cougar xr7 EGR valve?
How do you know that you have a bad valve? Are you just going by the code,or did you have it checked by a tech.? I have replaced very few valves.If you have a v vacuum pump you can check your egr valve. Apply vacuum an it should hold. Now with engine running apply vacuum does the engine stubble or stall? If the valve holds vacuum its good, an if engine stubble's the ports are not plugged. If all that checks out good the problem is most likely the DPFE sensor. If i were there with a scanner i could tell you exactly what wrong.Its not impossible to change the valve take your time an be patient.
Q:hi i just found out last week i have a micro valve and have willam sydrome i need more info about the valve?
I okorder.com/.. and don't start thinking everything happening to you is a symptom. I happen to have mitral valve prolapse, and it has zero affect on me. I would not have known I had it were it not for a gall bladder attack they mis-diagnosed as a heart attack.

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