Double Flanged Butterfly Valve

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Quick Details

Standard or Nonstandard: Standard
Structure: Butterfly
Pressure: Low Pressure
Power: Manual
Material: CI,DI,SS,WCB,etc.
Temperature of Media: Normal Temperature
Media: water,gas,oil,etc.
Port Size: DN40-1200
Place of Origin: Tianjin, China (Mainland)
Model Number: D341X-10/16QB1

Packaging & Delivery

Packaging Details:	Standard export packaging(plywooden case) or as per customers' requirements.
Delivery Detail:	within 15-30 days after the receipt of L/C or 30% deposit

Specifications

1.DN40-1200mm(2"~48")
2.PN: 1.0/1.6/2.0/2.5MPa
3.Design Standard: ANSI, AWWA C504.
4.CI,DI,SS,WCB,etc.
5.rubber lined.

Product Description

Brief introduction:
1. Good performance of sealing in both directions, small torque.
2. Flow curve tending to straight line. Excellent regulation performance.

3. Flange connection for convenient installation, suitable for vertical and horizontal type.
4. Variety of sealing materials.
5. The valve can be used as air release valve at pipe end, reliable performance.

6. The integration of seat ring and body brings long service life.

Performance:

PN (MPa)	DN (mm)	test pressure(MPa)		temperature °C	media
		shell	sealing
1.0	50 ~ 1000	1.5	1.1	-10 ~ +120	Water, oil, air, etc.
1.6		2.4	1.76

Standard:

Design	Face to Face	End Flange	Inspection and Testing
ANSI, AWWA C504	ISO5211	DIN PN10/16/25 ANSI B 16.1 BS4504 ISO PN10/16 JIS B 2212/2213 BS 10 table D BS 10 table E	API 598

Design

Face to Face

End Flange

Inspection and Testing

ANSI, AWWA C504

ISO5211

DIN PN10/16/25

ANSI B 16.1

BS4504

ISO PN10/16

JIS B 2212/2213

BS 10 table D

BS 10 table E

API 598

Materials list:

Name	Body	Disc	Stem
Material	ductile iron, cast iron + rubber (nitrile rubber, EPDM)	ductile iron, copper, stainless steel	stainless steel

Name

Body

Disc

Stem

Material

ductile iron, cast iron + rubber (nitrile rubber, EPDM)

ductile iron, copper, stainless steel

stainless steel

Q: I have a 66' malibu el camino with a 283 sbc and a powerglide transmission! I have bee noticing a ticking noise on the motor and it miss kind at a rhythm. I took the valve covers off and noticed pieces of metal right by the front of the motor on the head. It is where the #1 piston is. Some of them have kind of a rounded off shape to them. I dont see anything wrong with the springs. but its dark and i cant really see. I also noticed on the even side 2/4/6/8 some of the rocker arms are loose? Some may be loose on the odd side too. not sure, i didnt check them. I found them right where the hole is where im guessing where the oil comes in. What do yall think? It idles kind of rough and i have noticed a loss of power? do i have broken valve springs or something? Thanks for the answers!!!!: on the valve stem you have 2 keepers, they are small and curved and it could be one of them ! someone worked on that engine before you and either did not put both keepers in or one popped out !

Q: My electric water heater relief valve keeps opening 30 min after turning it on.I turned it down to 90F and 30 min later overflow again.when power is off no leak with the water on uld the valve be opening because of over heating?I know it does'nt leak with cold running through it.: Sometimes I find that the relief valve is not working correctly and needs to be replaced. They tend to get a buildup of minerals from the water that interferes with proper function.

Q: Because I plan to remove mine on a 2000 Eclipse GT.Thank you all..: I am guessing you mean will the valves come out if you remove the rocker assy. The answer to that question is no. The valves are retained by little half-moon clips that are wedged in a slot in the valve stems. The force of the valve springs against the top valve washer keeps them in place while also preventing the washer from sliding up past the top of the stem. You can remove the rocker assy without having the valves drop into the cylinders. You will have to adjust the gap between the cam lobes and the rockers when reinstalling so it isn't like you can just bolt it back on.

Q: Where are the valves. And how do I fix it? Will I have to buy anything? I have a 98 Honda fourtrax 300.: You certain its a valve noise and no longer an exhaust leak up near the head? They can sound very equivalent. If it's a valve noise the very first thing to check for is oil stress. Due to the fact you say it can be good maintained I have to expect you have changed your oil AND filter at the recommended intervals. Let me recognize, i know probably the most prior shadows had a unconventional hydraulic valve procedure where you had to force oil right into a chamber for the lifters. In case you misplaced that oil the lifters do not operate accurately.

Q: its a vauxhall movara van and i need help im trying to found out wether the valves are broken all the springs are upright and all level , so does this mean there ok ? or not ... thanks: Cylinder compression test will tell you if you have a broken valve. Thats the best way. The valve might not be broken, it could just be a poor seal.

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: Do I need breathers too??? Cause I believe that there is a hose that runs from the valve cover to the carb then a breather as well??????? and If i do end up putting a hose in will it suck the oil out or just the gases casue the mopar vavle covers dont have anything blocking the oil and rocker arms from splashing on the PCV Vavle on the inside????? FEEDBACK IS APPRECIATED: Mopar Valve Covers

Q: I have a suzuki bandit 1200 (2001) and I think it needs a valve adjustment. The engine is tapping at idle and while riding but I cant stop riding long enough to get it fixed. All the shops I checked with are booked for a week. Will I make the engine worst by riding it like this?: Noisy valves are better than quiet ones. Quiet means the valves are not fully closing, and exhaust gases will squeeze out the intake and exhaust ports causing burning of the valve seats. Shouldn't hurt too much to ride it until it's convenient for you. Keep an ear out, if it starts to get louder or somehow changes suddenly, you'll probably want to take it in right away.

Q: Specifically, what is the mechanism which leads to pressure drops in expansion valves?: I would wager that those losses, or pressure drops, are due to entrance and exit losses through the valve. Calculate the losses yourself. The mechanism is simply friction and geometry. Perhaps the losses are not what some agency says they are. Physical tests can be used should such phenomena govern costly criteria and baselines.

Q: i have a 1987 nissan 300zx and i can get the car to start unless its 40 degrees and when it does it idles hard. is this idle control valve or a fast idle valve??: Could be.. Also could be dirty. Easy fix, remove the valve and spray carb cleaner in the hole.. Using a small brush, clean the bore that the valve rides up and down in. Also, inspect the valve while it is off the manifold. Harder fix: After cleaning the bore, replace valve with brand new one. Your car will have to relearn the idle after starting with the new valve or after you put the old one back in.. Start car, but do not put it in drive or give it any throttle until the computer has finished making adjustments. - Dave. (Long Island, NY)

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