Butterfly ValveElectric wafer lug type eccentric DN30

Butterfly ValveElectric wafer lug type eccentric DN30

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 200 set

Supply Capability:: 80000 set/month

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1. Manual Wafer Butterfly Valve Description：

A butterfly valve consists of body ,stem ,disc , actuator (manual actuator, wormgear actuator , aerodynamic actuator or electric actuator) , and wafer type butterfly valve can implement the process for turning on turning off and regulating the flow by the circumrotation of stem and disc that is droved by actuators.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. 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 Manual Wafer Butterfly Valve

Design & Manufacture acc. to API 609,MSS SP-67,BS5155,BS EN593.

Face to Face acc. to DIN3202,API609,MSS SP-67,BS5155,BS EN558.

Top Flange acc. to ISO5211.

Pressure test acc. to API598,BS EN12266-1,DIN3230,BS5155.

Side Flange acc. to DIN2501,ANSI125/150,AS2129,BS4504,BS10D&E,JIS10K

Nominal bore mm		20				25	32	40	50	65	80	100	125	150	200
Valve core diameter mm		10	12	15	20	25	32	40	50	65	80	100	125	150	200
Rated flux coefficient Kv		1.2	2	3.2	5	8	12	20	32	50	80	120	200	280	450
Nominal pressure Mpa		1.6 4 6.4
Match DKJ actuator	specification	DKZ-4100				DKZ-4200		DKZ-4300		DKZ-5400			DKZ-5500
Match DKJ actuator	Differential pressure Mpa	6.4	4.0	4.0	4.0	3.5	2.3	2.0	1.42	1.4	0.91	0.55	0.35	0.26	0.17
Match introduced actuator	specification	A+Z64
Match introduced actuator	Differential pressure Mpa	6.4	6.4	4.0	4.0	3.7	2.5	2.2	1.6	1.5	1.0	0.6	0.4	0.3	0.2
Rated travel mm		10				16		25		40			40
Flux characteristic		Equal percentage Beeline
Function style		Volt on Volt off
Temperature range		Normal temperature: -20 — +200 degree abstraction of heat: -60 — +450 degree

3. Manual Wafer Butterfly Valve Images：

Butterfly ValveElectric wafer lug type eccentric DN30

4.Manual Wafer Butterfly Valve Specification：

Size:	DN50-DN1000
End flange:	ANSI B 16.1,EN1092,AS2129
Face to face:	ANSI B 16.10
Top flange:	ISO 5211
Normal pressure:	PN1.0/1.6MPa(150/200PSI)
Body:	CI/DI/WCB/ALB/CF8/CF8M
Disc:	DI/ALB/Rubber lined Disc/1.2501/1.4529/CF8/Hastelloy Alloy/Monel
Stem:	410/416/304/431/17-4PH/316/monel
Seat:	NBR/Hypalon/EPDM/Neoprene/NR/Wear-Resistant EPDM/Viton/Silicon/Heat-Resistant EPDM/White EPDM/EPDM(NSF)/PTFE
Suitable temperature:	-10~120
Medium:	Fresh water, sewage, sea water, air, vapor, food, medicine, oils, alkalis, salt etc.

5.FAQ

1. What is manual wafer butterfly valve?

A: 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?
A: 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: 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: Butterfly valve model D344H and D343 difference: [2]: butterfly valve also known as butterfly valve, control valve has a simple structure, can be used for low pressure pipeline valve switching control is closed parts (disc or disc) is a disk, around the valve axis to achieve the opening and closing a valve, the valve can be used to control the air water, steam, and all kinds of corrosive media, mud, oil, metals and radioactive liquid media and other types of fluid flow. On the pipeline, mainly from cutting and throttling. Butterfly valve headstock is a disc shaped disc, in the valve body around its own axis of rotation, so as to achieve the purpose of opening or closing or regulation.The answer is recommended by Gu Fengxiang, a member of the science education category

Q: 1st where is my zone valve? I have an old Burnham gas baseboard heater2nd What do I do?My last resort is calling a proffesional.: if your sure its not the thermostat than the zone valve should be near the boiler in the copper line. Most valves have a flat lever that slides when it is powered up to open. You can open manually by sliding the lever

Q: Butterfly valve is the control valve?: The flow characteristics of butterfly valves can be approximately equal percentage characteristics, with the positioner can do adjust, is mainly used in large caliber, straight stroke control valve more than 200 volume weight will be great, it suggests using the butterfly valve.

Q: CAD drawing of butterfly valve: Your question is very international. Ha-haThis method of painting is not clear in one or two words.First you'll know the map, then you'll use CAD, so the two will add up.Guess you will.

Q: i was changing valve seals and two dropped i can see the head of the valve but a magnet wont pull them up i put air the spark plug hole too but no luck 1985 ford bronco II: Your going to have to pull the heads.

Q: Butterfly valve, two-way pressure and one-way pressure what is the difference?: Popular, one point one pressure side, a double-sided pressure.

Q: Butterfly valve sealing material has several?: 9: H- stainless steel composite layerX3- ethylene propylene rubberX4- chloroprene rubberX5- nitrile rubberX6- abrasion resistant rubberX7- fluorine rubberX8- silicone rubberX9- heat resistant ethylene propylene rubberF- PTFE

Q: Who was the first doctor to discover Pulmonary Valve Stenosis? Also, who was the first doctor to perform surgery for it? Please and thank you for your help.P.S. I have this condition.: 1761 - Pulmonary valvar or valvular stenosis is one of the more common forms of congenital heart malformations and it has been extensively studied since the original description of pulmonary valve stenosis by John Baptist Morgagni in 1761. 1888 - Tetralogy of Fallot, first characterized by Dr.Etienne Fallot in 1888, is present in about 3000 children born each year in the United States. It is a combination of four heart abnormalities. Dodrill and his colleagues employed it with success for the open correction of a stenotic pulmonary valve in October 1952.

Q: Which is expensive, butterfly valve?: Butterfly valve is more common, less material and simple structure. Butterfly valve cheaper

Q: Butterfly valve structure and working principle: Butterfly valve structure: Center to clip butterfly valve, single eccentric butterfly valve, double eccentric butterfly valve, three eccentric butterfly valve

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