Concentric Butterfly Valve BS5155

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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: what are the best aorta heart valves. mech. or animal.: The ones you were born with.

Q: where is the bleed valve in a 97 taurus????thank you: drain valve is under the plastic cover that shields the are between the front bumper cover and the frame... You didn't say what motor in the taurus but most had a 3.0 2 valve motor and there is no bleed valve... refill the coolant, leave the radiator cap off the bottle, start the car, turn the heater on and fan on high with the air direction pointing to vents (usually first one on the left after the off switch) run the engine till the heater gets hot (reving at 2,000 rpm does help)... when it gets hot, it's bled out... That's how most Fords and this taurus for sure is done

Q: 1990 Pontiac Sunbird 2.0L Fuel Injected has EGR Valve, I can suck and blow through the hose connected to it, an I supposed to be able to do this, or not...? It looks old, like it's been on the car forever...: It recirculates the fumes and the air--but a cracked hose is a nightmare if vacuum leak develops--fix it--just get a new hose and happy motoring

Q: Can a dirty or faulty EGR valve cause overheating. My 2001 PT Cruiser is overheating but only on very hot days and when the air conditioning is on. Back flushed and pressure tested the radiator, changed the thermometer, fluid was low but doesn't seem to be loosing fluid since refilled. Check engine light came on and indicated poor air flow through the EGR valve. Is it worth replacing prior to pulling the radiator to check that for the problem with overheating? Mechanic I trust doesn't think the EGR can cause overheating.: A bad EGR valve can cause a lot of headaches, poor running, bad idle, stalling, etc. One of the few things that it can't cause is overheating. Completely different systems. (side note, make sure that the problem isn't with your EGR sensor, and not the valve). For overheating, here is the diagnostic path: 1: Check for leaks, and that fluid levels are OK. 2: Check for bubbling in the radiator / resivour (while running the engine). Bubbles, especially at high RPM's can indicate a blown head gasket. 3: Check that the thermostat opens. To do this, start a cold car, and place you hand on the upper radiator hose. With gloves on, squeeze it. Wait for a few minutes until the engine warms up. The upper radiator hose will get hot and firm. This indicates that the thermostat is working and the water pump is working. 4: Keep the engine running, and make sure that the cooling fan starts up. Keep your fingers away from the fan. 5: If you can SAFELY do it, reach to the front of the radiator and carefully feel for cold spots on the radiator. If there are cold spots, that means that the radiator is plugged, and needs to be swapped. Good luck.

Q: I have a 1987 Chevy Blazer with a 5.7 liter 350 engine. Where is the PCV valve located on it?: There will be a breather, and a PCV valve. PCV valve is the one with the hose to the TBI (not air cleaner) and has the PCV valve stuck in the valve cover. Note that PCV valves almost universally never fail, so not sure why you are asking...even one of the GM service manual tests of the PCV is to remove it, and shake it. If it makes noise, it's good.

Q: Any way to treat the calcification of the valves?Is valvotomy only an option for youths?: Surgery, is the last resort if medications fail. Patients with moderate aortic stenosis are advised to avoid strenuous activities such as weight lifting or sprinting. Aortic stenosis can progress over a few years. The prognosis for patients with aortic stenosis without valve replacement surgery is poor. Medical therapy, such as the use of diuretics to reduce high lung pressures and remove lung fluid can provide only temporary relief of symptoms. Patients with symptoms usually undergo cardiac catheterization. If severe aortic stenosis is confirmed, aortic valve replacement is usually recommended. The overall mortality risk for aortic valve replacement surgery is about 5%. Advanced age should not be a reason for not recommending aortic valve replacement for aortic stenosis. Take care always.

Q: my mid eighties GM full size car with a 305 just started to have a problem...it runs fine at idle.....runs rough/sluggish at speed......when I take my foot off the gas there is a fast rattle in the engine.........and sometimes the engine likes to idle fast.....I replaced the catalytic converter last year ...........so now I am thinking of changing the egr valve....there is no service engine soon light on and this car is a mid eighties so no obd 2 system on this car......any other ideas? thanks: EGR valve got sooty,and rusty and dirty and then they dont work right. They either dont open or they get stuck open and cause the car to run lousey. If the valve has been i the car since the 80's it is probably about time to either clean it or change it. do you have haynes or chilton manual for the car? they explain alot.

Q: here's some additional info asking of my question...I plan on buy a BLOWOFF VALVE and woundering where does the BLOWOFF VALVE goes in my car or do i have to replace with stock EGR VALVE using same hoses or help me please don't wanna screw this one up: Ben- If your car is not turbocharged you cannot install a blow-off valve. If your car is turbo-charged, this annoying device replaces the Waste Gate. What does a blow-off valve do for your car? NOTHING! It does not add horsepower. It is simply a noise maker to attract the attention of Law Enforcement. So what can you install to improve a Turbo-Charger's boost capability? HKS Controller, Cold Air Intake, Intercooler, High Flow Catalytic Converter, and some type of high performance exhaust system. What's this going to cost? $5000.00+ easy! Lastly, the Blow-Off Valve has nothing to do with the EGR Valve. Two totally different devices, performing two completely different tasks. And... not to burst your bubble. Since you don't know the difference between a Blow-Off Valve and an EGR Valve, I suggest you start taking some basic Automotive Technology classes BEFORE you get into learning about the high performance parts. Why? The last thing you want to do is get into something that is over your head, then have a very large repair bill on your hands because your inexperience in the task at hand is the result of the damage done to your car. One last item here. Performance does not equal fuel efficiency. The more horsepower you want, the more fuel will be required to make it. The more horsepower you desire, the lower the reliability. This becomes a factor because you will be harder on the parts which are doing the jobs required of them. So think before you decide to make major changes to your daily driver. Making performance changes to your daily driver, is a great way to have your friends passing you up with you stuck on the side of the road facing a big tow bill and an even larger repair bill. Bottom line, build your muscle car for a weekend romp, and leave the 4 Cylinder job shuttle alone. Just speaking from 25+ years of turning wrenches!

Q: this question was on my test for APII, the question is stated as:the tricuspid valve is closed...a) during rapid filling of the ventricles (this is the answer the teacher shows to be correct)b) by contraction of the papillary musclesc) while the atria contractd) during ventricular contraction (this is the answer i chose i got it wrong)please let me know to correct answer!! thanks!!: someone should be doing their hw for anatomy

Q: Half-Life 1 and 2 to me were masterpieces. It would be a shame if Valve ended the series there.Is Valve going to make Half-Life 3 in the near future ? If so, do you have any proof ?: confident there will be. it may be episode 3 or 0.5 existence 3 yet confident there will be. there is not any way in hell Valve could backtrack from that interest. They understand for a reality that they could make a killing off that interest and that i think of via fact of this they're retaining it one in all those super secret so whilst the time includes launch the great international will bypass nuts.

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