wafer type check 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)

Shaft bush: gunmetal

Q:I want to find a cheap valve that will let me take a breath in from one place then exhale through a tube going out so that i can attach an airbag to the breathing end and make a little diving lung.: Creating a proper valve system for the creation of a diving lung is not as simple as you think. You require carefully balanced directional pressure regulation valves. A simple one-way valve (AKA check valve) would remain open and release all the air from the airbag as soon as the airbag was subjected to water pressure.

Q:Last year an echo revealed severe aortic valve regurgitation with low ef of 37 but ecg was normal. i am 36 yrs old. I have noticed that i often have chest pain when i lie on my left (especially after a heavy drinking or if my bp is high) but the pain subsides when i lie on my right or back. Is it possible that my aortic valve only leaks when i lie on my left side, if so, can I continue living a normal life without needing valve replacement surgery if avoid lieing on my left side. or i'm i fooling myself, is the heart damage progressing silently?: Hello, You don't tell us *why* your doctors think, you developed this problem with your aortic valve in the first place? Has there been any infection of the valve with germs, (bacterial endocarditis)? Did you have Rheumatic Fever as a child? Were you born, with stenosis or regurgitation of your aortic valve? Do you have abnormally early, clogging-up of your artery-linings with cholesterol?

Q:Hey quick Q, I heard somewhere that you could degrease the the reed valve? I love cleaning up my CR250 as much as I can. I just want to know if this is done, and if you could, tell me where I'm supposed to clean.Thanks.: Spray degreaser down the air intake-that should fix it.

Q:My eight month old daughter was just diagnosed with pulmonary valve stenosis. Anyone have an experience with this? Did you have cardiac catherization? Did that fix the problem?: I had a different heart condition in high school. Mine was called superventricular tachicardia (SVT) but it required a cathedar in my heart. I had the ablasian surgery twice. We're not sure if it didnt work the first time or if there were two seperate problems, but after the second surgery I havent had any problems. Speak more to your doctor, he should be able to tell you more information and answer all of your questions. For me the surgery meant putting me to sleep and inserting the cathedar through three arteries, one on each side of my shoulders and one in the groin. I have very small scars that arent very noticable and I went home the next day.

Q:We have an ejector in the basement for an in-law apartment. When the check valve kicks in, it can wake us up from a sound sleep. A very loud thunking. Any ideas?: the check valve would be installed just outside of the crock vertically. The noise I doubt is from the check valve itself. I'd guess it is the pump shutting off and the pipe isn't fastened securely, so it bangs. Check to make sure that the run of pipe leaving the crock is fastened securely. if this is the case the only other option I oculd think of would be to re-position the check valve on a horizontal run of pipe as close to the crock as possible. Most check valves I have seen for ejectors are compression type, it will be messy but not to complicated. Keep a bucket handy, when you crack open that check valve you may need it. Flush the toilet until the pump kicks on a few times, this should clear out most of the nasty stuff. You may also need a short piece of 2 pipe and some couplings to make up for the space of the check valve. If you can hear the water flowing out when the pump kicks on and don't hear it draining back into the crock when it shuts off, the check valve is probably still good.

Q:Does a faulty pcv valve (Positive Crankcase Ventilation valve) cause excessive exhaust smoke ?: might so easy and cheap to replace

Q:im 16 and im rly scared i have already been checked out by the hospital and they sed that i have a moderately leaky heart valve. They recommended me to see a childrens cardiologist since they dont specialize in children. i have to get another echo and some other tests done i think. im so nervous. whats going to happen to me??: Dont worry, its only moderate so you should be fine. Yes you should go to a pediatric cardiologist to get checked over and get an echo, and ekg and probably a chest xray. They will tell you everything you need to know, its ok dont worry! Im 16 years old also, i have Aortic stenosis(narrowing valve) Aortic Regurgitation(leaky valve) bicuspid aortic valve(only 2 leafs instead of 3) and Enlarged aorta(aorta is getting bigger) and im ok! My stenosis is moderate, my leakiness is moderate, my enlarged aorta is mild. And i have not had surgery yet, im totally fine, i just cant play contact sports because of the enlarged aorta. You should be fine! Email me through my profile if you have any questions

Q:List all the brass instruments with valves? Thanks. I need it for the history exam -.-: Keys are metallic disks with pads (leather-based-lined, padded products) under them, that are pushed all the way down to close a hollow in a woodwind device. Valves are merely like hydraulic valves: they are mechanisms which flow somewhat (a piston or rotor) to alter the path of airflow via tubing. present day brass gadgets use valves. They paintings with the help of fixing the dimensions of the brass tubing (with the help of switching in extra beneficial lengths) to alter the pitch-length of the entire device. There are 2 brass-mouthpiece gadgets which survived far adequate into the classical era that they are nonetheless utilized in present day overall performance, the Serpent and the ophicleide. (the former is formed in s-curves, subsequently the call, the latter is a relative of the Russian Bassoon, that's additionally a brass-mouthpiece device.) those are keyed. between the 1st efforts to apply something different than a slide to alter the pitch of a brass device (slides as in trombone) replaced into referred to as the keyed bugle, because of the fact it had great keys on the aspects of the conic-bore tubing. it is not believed to have been a fulfillment, and is not used as we talk. So, for present day gadgets, brasses use valves, woodwinds use keys.

Q:In the very near future I'm having valve replacement surgery. I haven't yet been told the risks or the recovery period, does anyone know the risks or the recovery stages and how long recovery takes?: Valve replacements actually have very low morality rates like 1-2%. There are always risk's with surgery though, such as blood clots or irregular heart rate. The recovery in the hospital is generally 5-7 days, and then it can take anywhere from 8 weeks to a year to feel recovered.

Q:Hi, this is a part 2 question to the one I posted last night. After turning the water shut off valve on my toilet back on, it didnt start to hammer till about 1 min pasted. When the hammering is happening I look in the toilet tank and see air bubbles coming out of the base of the fill valve and the water coming out of the fill tube isn't smooth and flowing its kinda step wise/ in intervals. I forgot to mention that I live in an apartment, does this affect anything?My official question is, is this an air bubble problem or is it a rubber gasket/ rubber seat problem?This is a new building only about 2 yrs old, so parts can't be that bad right?: Air in lines. Leave valve on and push float down manually til it runs smooth.

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