Double Flanged Eccentric Soft Seal butterfly valve

Double Flanged Eccentric Soft Seal butterfly valve

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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)

Q:what does mild sclerosis of aortic valve means? Why does it happens and what is its curethanks: This is a routine, well established procedure. The incidence of major complications are less than 4%. There are two kinds of artificial Heart Valves. One is mechanical, and the other is tissue valve. The mechanical valve requires the person to be on life long anti-coagulation therapy. This also requires periodic check on the persons pro thrombin time. Based on this, the anti-coaglation dose will be adjusted. The problem with anti-coagulation is that it may lead to bleeding complications. The tissue valve is made from the tissues of a bovine or porcine heart. The tissue is denatured to ensure that the valve is not rejected as a foreign tissue. (This is not a problem with mechanical valves.) Being made of tissue, these valves do not allow clots to form, which means that anti-coagulation after a short initial period is not required. This is a major advantage, especially for women, who may have some earlier bleeding problems. Then why are mechanical valves used at all? Being made from non-living denatured tissue, tissue valves cannot repair themselves. They also tend to get calcified in younger people with more calcium activity. They also have a shorter life than mechanical valves. Surgeons tend to favour mechanical valves for younger people (whose life expectancy is higher), and the tissue valve for the older, as such people may already have some bleeding problems, the valve's durability is not critical and the patient has lower calcium activity. These are general considerations. Only a surgeon armed with the full test results, and a knowledge of the patient history, who can advise the patient on what is the best option in each case. To reiterate, AVR (Aortic Valve Replacement, not my initials) is a routine procedure and recovery tends to be uneventful. Wish you all the best, and as uneventful a recovery as possible.

Q:Hi My sons car has alloy wheels, and metal valve stems, there is a tiny leak between the valve stam and the alloy on one wheel, we are struggling to get anyone to repair at a reasonable cost. Would tyre weld make a permanent repair?. Some tyre specialists won't touch the wheel, one other wants to drill out the stem put in another, which sounds a bit drastic. Any other ideas?, is it feasible to get the metal valve stem replaced by a rubber version?. Apparently the metal ones get curbed and then start to leak.: On that year car the tire is tubeless and the valve stem should not be moving as it would if you had a tube type tire. If the valve stem is pushing in it means you drove on the tire while flat and probably ruined the tire as well as the valve stem. The tire must come off the rim to be inspected before blowing it back up and used. If you don't inspect the tire it will probably blow out at highway speeds and kill someone!

Q:what exactly is thc pcv valve and what does it do: 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:I'm installing an under-sink water filter. For the saddle valve, how do I drill the 1/8 hole through the iron pipe? What is the easy way to do this? Seems like I will be slipping around a bit. Any tips on this step?: 1) most saddle valves are installed using a turn screw piercer that comes with the valve for copper and are not designed for steel. steel is not soft enough to form a good seal to the saddle valve. 2) saddle valves are much more prone to leakage than other joints, so please consider adding a T connection in to the pipe in between the supply pipe and the faucet with the bottom of the T capable of connecting to the filter tubing with a compression fitting. 3) if you still feel you need to drill the hole, you could make a jig from 2 pieces of wood, both wider than the pipe, one piece with a 1/8 inch hole pointed right at where you want the hole, the other would be screwed to the first piece of wood on the other side of the pipe to hold the first in place. A V shaped cut in both pieces would steady the wood around the pipe. The v cuts should not be so large that the cuts allow play in the wood around the pipe.

Q:What are a sing of a bad Idle control valve, will this cause bad mpg?: Generally, a bad ICV will either be stuck open from carbon or dirt making the idle stay too high. Or dead which usually kills the engine when put in gear. Mileage would be affected, but if it idles good, it's probably ok.

Q:I have a stainless valve I want to install in a copper domestic water line. My concern is: are the two metals compatible? Are stainless steel and galvanized steel compatible?: How would you plan on connecting them? SS will reject solder and a welding torch will likely melt the copper. Maybe via a PVC piece as an intermediary? If the valve is threaded can you solder a threaded adapter on the copper pipe and use Teflon tape on the threads?

Q:For those of you that have had a heart valve replaced, why did your heart valve go bad?: They usually just get worn or go bad my son will be getting his Pulmonary Valve put in here within the next year. he has a CHD and with his last open-heart surgery they had to remove it, so right now he doesn't have one. the cardiologist tell me they can last up to 20 years!!!

Q:I'm taking a pipe fitting class and I can not find witch valve had the most restriction.: plastic valve

Q:about a year ago a bought a bach stradivarious. the valves aren't sticking, but they are still considerably slower than my ten year old omega. shouldn't they be broken in by now? i've cleaned it countless times and tried many different valve oils. any tips on how to get them faster? thanks to all!!! :): Despite okorder and ask for recommendations based upon your location. It's a good bunch of guys who will steer you in the right direction.

Q:my dad is going to go under heart valve replacement what are the chances of him surviving he is 58 years old and has copd: It depends a lot on which valve and why it's being replaced, but unless the COPD is very bad, the average chance that a 58yo man who does not have any other major medical problems will survive single-valve replacement surgery is better than 98% if the surgery is done by an experienced surgeon at a good hospital. The COPD will very likely mean that his post-operative recovery will be prolonged and difficult, but he should do fine.

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