wafe type 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: i would like to hear from anyone who has actually had the work done. i also would like to know if the valve worked.: I suggest putting this question anywhere but in cars and transportation.

Q: We are using safety valves of gas and steam for detergent slurries. Why they do not function?: A gas valve is designed for gas, not thick slurry! When the valve opens, the aperture is nowhere near large enough to allow a significant flow of slurry. The simplest thing would be to use a burst diaphragm, designed to burst at a particular pressure and sized for the appropriate flow rate. You need to replace it after every use, but they are cheap. Otherwise you are stuck designing a custom valve, which would be pretty expensive.

Q: i recently had a new condensing boiler and water cylinder replaced the existing radiators all have thermostatic valves fitted to them and worked fine until the boiler was replaced now all of my radiators when turned on, get as hot as the radiator without the valve on, i put each valve on number 2 which should be slightly warm, instead they are very very hot to the point you cant hold your hand on them for long one of the bedroom radiators can be heard bubbling like a kettle, i find it hard to believe all the valves could suddenly develop a fault could there be another reason for this ie fault with the fitting of pipework i am really concerned as we have young children in the house any thoughts on this much would be much appreciated: Actually, the thermostatic valves do control the temperature of the water in the radiator. I suspect the new boiler is storing water much hotter than the old one, because of the threat of legionella breeding there. A thermostatic mixing valve may have been installed at the point the water leaves the boiler, to introduce cold water as it heads out to the radiators, hoping to make the water closer in temperature to what you actually want in the radiator for heat. If they have the mixer adjusted too hot you can adjust that to have the water leave the mixer cooler than it is now. If there is no mixer in your new installation, then you would need to reduce the setting on your individual radiators to adapt to the hotter water they are using in boilers now, due to legionaire's disease.

Q: I've been told that I need to replace a clogged expanssion valve on my '96 toyota camry.A friend said he would properly recharge the system if i replaced the parts needed .I can't ask him where it is because he's out of town for a little while. I also need to replace the drier ,but it's obvious where it is.Please help me.: The devil is interior the main factors. Is the motor vehicle interior utilising variety the place you could look into. what number householders. Any maintenance documents. Is the unique vendors handbook blanketed. i could have a Toyota mechanic placed it on a enhance and look into below intently. There are rubber boots that carry particular lubricants mandatory to the drivetrain that have a tendency to crack and leak with age. Has the Air Cond plumbing been switched out to settle for the hot form refridegerant. Do the belts and hoses seem properly maintained? My suggestion is to bypass forward and discover extra contemporary sort with fewer miles. Older autos, even Toyotas with that many miles that have not been properly maintained can grow to be a money pit and go away you stranded. making an investment extra money now can recommend saving numerous money and hardship interior the destiny.

Q: Ford Capri 2.8 injection. I need to adjust the valves, so need to know how to tell if the valves are tipping and at what exact time I need to adjust them.: valve tapping what is valve tipping search yahoo answers for valve tapping i saw a resolved question about how to fix this problem

Q: why can't i just use solenoid valves hooked to a small bank of relays(using relay logic to control operation) connected to thermostats to control a multi zone boiler system? it would work, but can i do it, why must i use expensive zone valves?: Its just an educated guess but I would say it would cause system shock if a valve just snapped shut as against closing gently. Assuming the system was shutting down as a zone valve shuts the control switch opens and turns off the plant whilst the valve is still partly open. With a solenoid unless you fit a timer to pre shut off the plant then shut off the solenoid you would probably cause some plant damage. Also by the time you have wired all that lot up you may as well do the job with a zone valve.

Q: I had some great answers to my question yesterday... I have decided to have the valve job done... Since I have decide to go this route... I need some reassurance, the few people I have suggessed this option to have now told me that typically after a valve job other problems will start showing up. They have said that the car isn't worth putting money into and to get ride of it.: well, is the car in good shape otherwise, like the tranny, suspension and the body?, if it is, then its probably wort a valve job, its cheaper then another motor.

Q: My cougar needs new EGR valve. They squeezed the 4.6 litre engine into it. My question is, how hard is it to get out and then back in? I can barely see the top of it behind the intake manifold so don't want to get it off and not be able to get it back in. What size bolts hold it in? I'm sure they are metric. Any help would be greatly appreciated.: 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: Do most V6's have 24 valves? What are they for? (brief description would be fine): Like a bath plug with a stem attached or an ice cream cornet with a straight cone, and these go up and down in the head to let petrol in and exhaust fumes out. They're driven by a cam which has lobes on it which sit on top of the valves on the end of the stem as the cam goes round and round the valves open and close at the specific time to open and close the valves. Got it now? Ask at your local library for books on internal combustion engines then all will be revealed in text and pictorially. You could also go down to your local car or motorcycle breakers and buy or look at a cylinder head, which as engineer goes is a very simple system.

Q: I experience a quiet ride on a kawasaki vulcan vn 2000 and clicking started at the end sounds like valves ticking sometine like 2 then 1: Time to take it in for an adjustment.

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