Concentric Butterfly Valve ISO5211

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Features:

1. Small in size, light in weight, easy installation and maintenance.

2. Simple and compact construction, quick 90 degree on-off operation.

3. Minimized operating torque, energy saving.

4. Flow curve tending to straight line, excellent regulation performance.

5. Long service life, standing the test of tens thousands opening/closing operations.

6. BUbbles-tight sealing with no leakage ubder the pressure test.

7. Wide selection of materials, applicable to various medium.

Material List:

No.	Part Name	Material
1	Body	Carbon Steel/Stainless Steel/Cast Iron/Ductile Iron/ Al-Bronze
2	Disc	Al-Bronze/CF8M/Ductile iron/WCB
3	Seat	EPDM/PEFE/Buna/NBR/Hypalon
4	Stem	Carbon Steel/Stainless Steel314/Stainless Steel316
5	Bushing	PTFE/Lubricating
6	O ring	EPDM/PEFE/Buna/NBR/Hypalon
7	Pin	SS316/SS416/SS304

Q: I am trying to replace a leaky valve stem. And I didn't know how to get to the valve core and when I get there how do I change it? The charge is recovered. It is a 2000 Impala. Thanks in advance.Noah: You say you want to change out the valve stem but can't find the valve core but the charge has been recovered. How did the charge get recovered without knowing where the valve core is. That's where the charge was recovered through. Also, if you have a leaking valve stem how did you still have a charge to recover, it would have leaked out through the leaking valve stem.

Q: For instance, I am buying some new tires that don't have the valve stems on them, so could I remove my existing valve stems from my used tires onto the new tires? Is this recommend at all? Is it safe? Is it possible? Can this be done? why or why not? thank you.: Ugh you could but you can buy new valve stems for about 25-50 cents each. I would use new ones.

Q: Hi i have a 00 bmw 320d and am trying to find out information on puting a dump valve in, is it possible?, what type of dump valve? and how hard it would be to put in?? any help would be much appreciated.....Thanks!!: Dump Valve Diesel

Q: When using seafoam through the PCV valve. Which side contains the vacuum? From the crank case of intake manifold? The brake booster line is very difficult to access and on their site it says I can apply seafoam through the pcv valve.: Remove the PCV valve from the rocker arm cover remove the hose off the PCV valve shake the valve, is it springy? if yes it is OK put it back on. If not spray the top and bottom holes and shake it back and forth till you can feel it becoming springy Best world I can think of sort of feels like a ball bouncing inside when it's free afterwords spray it till it's clean then dry it and install it bak into position. The hose is the vacuum side but you DO NOT want to get the sea foam into the booster diaphragm or it will damage it, it's made of rubber and ea form will harm it as will any oil or lubricants that gets on it. The PCV valve is a controlled vacuum leak and it pulls engine gas out and recreates it to burn again and it supplies boost to the brake system as well. Hope this helps.

Q: The Hawker Tempest was the fastest piston powered airplane ever made, it had a sleeve valve engine. It was made obsolete, by the Me 262 and other jet engined fighters, But it's engine was the ultimate piston aircraft engine. Then piston engines became something for inexpensive planes, but why has the sleeve valve not undergone further development as a sports car engine?: it is a good suggestion. perhaps someone would take steps to implement it.

Q: used in pipe line: I assume you are referring to a pressure safety valve (PSV) or a pressure relief valve. If you have a PSV connected on the exhaust side to a relief header that can have a pressure build up in then you can use a bellows type PSV to assure that the set pressure of the PSV is not changed by any pressure build up in the header You can get a better idea of this from the first link below.

Q: yes i just started clarinet. all my spit just comes right through and falls on my feet and the ground. i was just wondering if the clarinet had a spit valve or somthing.-thanks: Nope. There isn't a need for a spit valve since any condensation which forms can just fall out onto your feet. Spit valves are only needed in instruments where moisture builds up. However, you may find that sometimes moisture will get trapped in some of the keys, causing certain notes to have trouble sounding. Every now and then if this happens you can open the key and blow across the hole to blow away any moisture which has formed.

Q: I keep the tire pressure in my tires at approx 40 lbs per tire. I have an inexpensive tire gauge that I use to measure the pressure. Recently, one tire seemed low, so I measured the pressure and the batteries were dead in the tire gauge. I replaced them and measured again.It said 20.5! I thought I was going crazy, but then measured all the other tires and they were around 35 to 40. I filled up all the tires to about 40, but when I measured the weird one again, it said only 30!The question is, could there be a problem with the tire valve that is preventing me from getting a good measure of the pressure? I filled up the tire to where it looks really filled up, and I'm afraid to overfill it. I'd like to get it to 40 lbs but I don't know if it's already gt; 40 lbs with a tire valve problem. Or if a tire that's at 20 pounds can look so filled up that you couldn't tell it from a tire that's at 40 pounds?Any info would be appreciated.: by the time you drive around find a valve stem tool and then find a new valve core which you need to replace because it is leaking and how many times in your life time will you ever need this tool again you would be better off going to walmart tire center and have them install a new valve stem it comes with the new core and cap in 1 unit assembly

Q: I have a D16Z6 SOHC VTEC engine in my 93 Honda Del Sol.Ive been told that the D16Z6 came with 2 different valve covers. One style cover says Honda on the top and another also says VTEC.I have the one that just says honda but I want the other put on.What would I need to swap them, and where would I get them?and a roundabout price: I don't think they sell any aftermarket valve covers that say Honda VTEC since companies would have to pay honda to use the name and i did a quick search but I could not find 1 cover for you vehicle which means you'd have to call the junk yards around your area or just call Honda and see if they can order one in for you, i doubt they have one lying around on a shelf it will take anywhere from 2 days to a week to order in and since its factory honda part its probably around 200$ without the gasket(maybe abit more) but if you swap it for a new one I suggest you do the gaskets and grommets with it so it won't leak oil. It's pretty fairly easy to change yourself, they are all top nuts or long bolts that run through the cover if i remember either 10 or 12mm, or both sockets required, when you get all the nuts off you simply just pull off the cover, it might be abit stuck so you can pry gently with a small screw driver or small prybar and it will come off, cover the top with a clean cloth or newspaper so no dust and rocks fall in, clean the metal area off of all the oil and youll see small corners that have abit of silicone on it, thats for extra protection so it won't leak out of the corners so just a small amount of black silicone dab in the same corners then put the new cover with gasket it on and tighten down, and just snug the bolts, theres no need to tighten the crap out of it or you might snap a bolt. 3/8 drive wratchet is okay to use. ( if you get some junkyard valve cover DO NOT paint it unless you have special heat ressistant paint or it will peel off and look really ugly ) Good luck....

Q: Does the heater control valve anything to do with the A/C ?My heater control valve needs replacing, as it leaks when I put my truck's heat on. No heat, no leak. I have to periodically re-add Prestone every once in awhile after using the heat . I've checked the valve and it only leaks when I have my heat on, if I don't use my heat, I don't lose fluid. But now I'm wondering if I use my truck's A/C, does the heater control valve have anything to do with the radiator fluid, or just the freon? Thanks in advanceCar Mechanic in training: What you may really want to check is if the heater core is leaking. I have never heard of a valve actually leaking. And no the AC and Heater are 2 different systems on a car. The fan that circulates the air is the same except air flows across the heater core or the air conditioning coil. AC air is usually just recirculated in the car air where heated air is usually outdoor air combined with in the car air.

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