ISO Standard Eccentric Double Flanged Rubber Seal Butterfly Valve

ISO Standard Eccentric Double Flanged Rubber Seal Butterfly Valve

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 5 set

Supply Capability:: 50 set/month

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1. Butterfly Valve Description：

A butterfly valve is a valve which can be used for isolating or regulating flow. The closing mechanism takes the form of a disk. Operation is similar to that of a ball valve, which allows for quick shut off. Butterfly valves are generally favored because they are lower in cost to other valve designs as well as being lighter in weight, meaning less support is required. The disc is positioned in the center of the pipe, passing through the disc is a rod connected to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow. Unlike a ball valve, the disc is always present within the flow, therefore a pressure drop is always induced in the flow, regardless of valve position.

2.Main Features of the Butterfly Valve

(1) 90° movement for full open/close position.

(2) Excellent control characteristics.Tight shut-off even after innumerable operations.

(3) Installation cost considerably reduced because of very low weight and compact design.

(4) Longer life and reliable service with minimum component wear.

(5) Renewable seats. No supplementary gasket required with the adjacent pipework.

(6) Body & Stem totally protected from service fluid.

3. Butterfly Valve Images：

ISO Standard Eccentric Double Flanged Rubber Seal Butterfly Valve

4.Butterfly Valve Specification：

BODY	DISC	STEM	SEAT		BUSHING
BODY	DISC	STEM	MATERIAL	WORKING PRESSURE
CAST IRON	DUCTILE IRON WITH NICKEL PLATED	CARBON STEEL	NR	-20-+85	LUBRIZED BRONZE
DUCTILE IRON	ALUMINUM BRONZE	STAINLESS STEEL	HYPALON	-18-+135 INSTANTANEOUS -18-+149	PTFE
ALUMINUM BRONZE	STAINLESS STEEL		EPDM	-45-+135 INSTANTANEOUS -50-+150
CARBON STEEL	CARBON STEEL		NEOPRENE	-7-+193 INSTANTANEOUS -7-+107
STAINLESS STEEL			NBR	-12-+82 INSTANTANEOUS -12-+93
			WEAR-RESISTANT RUBBER	-10-+50
			VITON	-23-+150
			HEAT-RESISTANT RUBBER	-20-+150
			PTFE	+10-+150

5.FAQ

1. What is manual wafer butterfly valve?

Wafer style is the more common of the two and is less expensive than the lug style. The wafer style butterfly valve is just about the standard. It ís so common that no one even bothers to use the word "wafer" when ordering a butterfly valve. It is taken for granted that if a butterfly valve is ordered, a wafer style will be received.

2. How about the Installation of the Wafer Style Butterfly Valve?

Butterfly valves are installed by inserting the valve between two flanges using bolts or studs and nuts to hold it all together. This type of installation, of course, makes it impossible to disconnect just one side of the piping system from the valve. That benefit is received using the lug style valve.

3. What is the working principle of manual wafer butterfly valve?

A butterfly valve is from a family of valves called quarter-turn valves. In operation, the valve is fully open or closed when the disc is rotated a quarter turn. The "butterfly" is a metal disc mounted on a rod. When the valve is closed, the disc is turned so that it completely blocks off the passageway. When the valve is fully open, the disc is rotated a quarter turn so that it allows an almost unrestricted passage of the fluid. The valve may also be opened incrementally to throttle flow.

Q:What is the use of the hole below the basin faucet, on the basin: You say is the double-hole faucet wash the face of it, a total of three, that is the middle of some double-hole faucet will highlight some of the middle, so stay

Q:Kitchen hot and cold water faucet, how to repair? The faucet can be rotated 360. Handle and spool I can remove it. The leaking part is the faucet and the gap of his last section. How to remove the faucet faucet quincy arrogant horny buddy ketone? Question added: 360-degree rotation that section below the base is difficult to screw down, what tips? More: Kitchen hot and cold faucet leak, you can change the pad or new products. First, the reasons for failure: 1, the general hot and cold water faucet water leakage, are due to the use of time, faucet inside the gasket aging, wear caused. Second, the maintenance method: 1, just open the faucet put on a rubber or silicone pad on the line. 2, just buy a new faucet spool on the line. 3, direct replacement of the faucet.

Q:What are the types of kitchen faucets: Brand too much oh But I recommend nine animal husbandry, nine animal husbandry is indeed better.

Q:The size of the shower, there is a kind of water nozzle: Spool between the spool and the body of the body of what is not lax place

Q:I have a Kohler (sp) faucet in my master bath that's come loose. I've looked underneath for some kind of bolt to tight, but I don't see anything there to tighten. I'm wondering if it was fitted badly and the means to tighten it lays between the plywood and the granite top. Thoughts?: there has to be a large nut under both the hot and cold water taps. you need a basin wrench to tighten them. get a basin wrench, crawl under the sink and tighten the nuts.

Q:Kitchen faucet hot water small flow can not start the water heater, cold water normal. There is no clogging. Toilet water normal, how is the problem where the solution?: How far is the water heater from the kitchen?

Q:My home to buy the Siemens washing machine was decorated when the time is to stay in the mixed water valve, but look at the Internet that the Siemens washing machine only need to enter a cold water mouth to see the light scolds on the line and the mouth of the Siemens washing machine is 6 points of my family can only be filled with a mixture of water, but the mixing valve all 4 points are how to do ah we help out to see more: General sale after the installation of 4 points to 6 points. The other you mention the mixing valve is what kind of water is not hot and hot adjustable that, if it is, according to the following methods of operation, 1, remove the mixed water valve mouth (inside the filter, bubbler) 2, buy a inside and outside the wire size directly (4 points outside the wire 6 points within the wire), a 6 points directly to the silk, raw material with a roll. 3, 6 points outside the wire wrapped around the raw silk, twisted into the inner and outer wire 6 points, inside and outside the wire 4 minutes wrapped around the raw material belt, twisted into the mixing faucet outlet, the washing machine into the water pipe Silk directly to the light of the degree of scare off the right to protect. 4 skip 2, 3, directly in the mixing faucet outlet access to 4 points directly to the after-sales installation to 4-6 points conversion head, then you can.

Q:I am getting pebbles clogging up the cold water side of my bathroom faucet, whats up with that?: Could be calcium. You can flush it yourself but you'll likely need two people for the job. Turn off the water under the sink at the shutoff valve. Remove the faucet handle, then the valve stem(usually some kind of nut holds it on),then the seat and spring. Hold a cup upsidedown over the now open resivoir and have the second person turn the shut off valve ever so gently so the water flows at a manageable rate, hits the cup and goes down the basin. Let it run for a few minutes to clear the line. Put your faucet back together. Good Luck!

Q:I just wanted to replace my kitchen sink but now that we have it in my cold water hose wont fit into the cold water valve.. they are both female ends. is there an adaptor i can use? do i have to replace the valve with a valve that has the right connection? and lastly what are these parts all called so i wont look like an idiot at the hardware store. thatnks for the help every one!: Please okorder , or the like) I can't tell what valve you're referring to.

Q:How is this faucet demolition? Ask for help: I had disassembled a similar leader, old age, the impression is not deep. The switch part of the handle is to take as long as the trough to save the cheerful chewing tea wedge compensation blind after the nut can be released from the following out of the valve; the middle of the outlet below a three-way, can be removed from the following loose nut, The outlet is removed from above. You first look, if not, the details of the various parts of the film, I can help you analyze.

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