EN558 Eccentric Double Flanged Butterfly Valve

EN558 Eccentric Double Flanged Butterfly Valve

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 6 set

Supply Capability:: 60 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：

EN558 Eccentric Double Flanged 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.

http://www.alibaba.com/product-detail/Huagreat-Flange-Lug-Wafer-Butterfly-Valve_941906027.html

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: On the place to open the gasket change, if not the cushion on the seal tape. Sealant can be

Q:Why should the bathroom faucet and kitchen faucet separately sold, the market are classified to sell, what is the difference? More: Faucet single hole, double hole (installed on the table to play a few holes), single hole is divided into double temperature (hot and cold water) and single cold (only cold water). The basic function of the kitchen faucet and the bathroom faucet is the same. But the kitchen faucet for easy to operate the angle is generally a single hole, the faucet outlet handle is relatively high, generally arc-shaped cylinder. The faucet of the bathroom has a variety of styles. You can go to the faucet shop to see, the points are very clear, very few people in the bathroom faucet in the bathroom or the bathroom faucet in the kitchen, because the bathroom faucet is generally relatively low outlet, no need Like the kitchen faucet so high, and can move around the handle.

Q:About the kitchen of the faucet, we buy what brand: Kitchen faucet selection rule 1: good water-saving kitchen faucet not only make the water out of the bubble, limiting the flow rate, and let the user feel the water is more gentle, abundant water. Kitchen faucet selection rule 2: durable faucet is durable, the surface treatment process is very important. Good faucet can withstand acidic high temperature test. In addition, the internal structure is reasonable, the spool is the heart of the leading, good spool is not easy to drip and damage phenomenon. Kitchen faucet selection rule 3: human, for example, pull the kitchen faucet, with columnar water and jet water in two ways, clean and convenient, more pullable stainless steel hose, easy to reach the place you need to expand the cleaning Range, so that cleaning can also be a fun thing. Kitchen faucet selection rule 4: easy to clean the kitchen fumes larger, many times after the cleaning surface is easy to lose luster, and may appear coating color, off the phenomenon. Therefore, when buying a faucet must understand its warranty period. Kitchen faucet selection rule 5: lead content in environmentally friendly water is mainly caused by water scouring the waterway. Material is not good lead, it is easy to lead lead and other heavy metal content exceeded, endanger the family, especially the child's healthy growth. Kitchen faucet rule 6: Convenient faucet design Taking into account the needs of a variety of cleaning methods, you can pull out and spray vegetables and other things, can clean the general cleaning utensils can not reach the corner.

Q:The friend know how to remove the faucet, the following handle where I will be above the tube where the demolition of the problem added: more: If this faucet is not estimated wrong, it should be a rotary kitchen faucet. To dismantle it, start from the handle part of the demolition, the first to remove the plastic particles on the handle, with the hexagon to remove the screw, won the handle, and then remove the spool nut with a wrench, and then remove the body. If you only want to split the mouth part, that is, the bubbler, you can use the wrench to take off the bubbler to clean or replace

Q:Long water to buy social security where to buy?: Long water people as long as a boring to really two network, making the people's life gusto.

Q:Will the water heater hot water nozzle can take it? Will not the cabinet break down? Thank you master guiding.: Is that the kind of automatic heating supply hot water? Can change the mouth.

Q:Kitchen faucet always close tight, leaking, what is the reason?: There are several cases: 1. The main body of the faucet loose, need to be removed, the new. 2. ceramic spool or copper spool leak, encountered this situation, for a spool like, when installed, you need a pull Geng Ji Li Li Dian Dian for the bite force, word or cross screwdriver It is almost easy to do. 3. The main body of the faucet has trachoma, this situation, you can only change the faucet.

Q:Virtual home 2 kitchen faucet how to repair ah: 1. repair the faucet: first to the store to buy tape (random goods), the tape placed next to the leakage faucet, so that one of the family members to take a bath to reduce the water pressure, and then pull out the leak to repair the finished The 2. Health baby is a chance, or can go to the pharmacy to buy babyboost (increase the chance of pregnancy needle) to the male and female owners are marked with a look at the effect. 3. Is it a little red hand? The It is used to criticize the villain some bad behavior. 4. sunny rainy days are to see the chance, or to the helmet buoyed reed berry every Feng Fu Kun store to buy the weather change of the bottle agent .5. On time, the game inside and outside the day and night with the real time is the corresponding. .. If there are more problems, you can click on ID consultation.

Q:Before the renovation of the kitchen and toilet water flow is very large, when the water flow is also very easy to wear the end of the whole but the big household, but the decoration is completed, the sink faucet and shower faucet installed, the water flow becomes smaller , And no pressure, in the end what is the situation? What can I do? More: Before the renovation of the kitchen and toilet water flow is very large, when the water flow is also very easy to wear the end of the whole but the big household, but the decoration is completed, the sink faucet and shower faucet installed, the water flow becomes smaller , And no pressure, in the end what is the situation? What can I do? More

Q:My kitchen faucet got broken, so i am trying to replace it with a new faucet. But here is my problem. I CANNOT uninstall the old faucet!!!! The main screw that holds the old faucet got rusty and the space around the screw is so little, I cannot uninstall it. It is so tight and it doesn't come out....I feel like if I continue trying, it may totally ruin the screw and it may never come out...Is there any advice for that? Pls help me!!!!: SomeTimes a hack saw is a plumbers best friend, other times the bald alone is.

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