Soft Sealed Butterfly Valve ； Butterfly Valve

Soft Sealed Butterfly Valve ； Butterfly Valve System 1

Soft Sealed Butterfly Valve ； Butterfly Valve

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 10 pc

Supply Capability:: 1000 pc/month

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Specification

Material:

Steel

Pressure:

Low Pressure

Temperature of Media:

Normal Temperature

Power:

Manual,Pneumatic,Other,Electrical

Media:

Air / Water / Steam / Coal Gas / Oil Product

OD（Outer Diameter: inch）:

2000

Size(inch):

254

Pressure（LB）:

Net Weight (kg):

1800

Features

Soft sealed butterfly valve is applicable to the drain and air pipelines in the field of foodstrdd, pharmacy, chemical industry, petroleum, power, textile paper making with temperature < 120°C，PN≤1.6Mpa, as to control flow and stop the medium. Main features detail as below:

Novelty and reasonable design, unique structure, light, weigh, prompt open/closure.
Small toeque, convenient operation, flexible and labor saving.
It is available to install at all direction with convenient maintenance.
With changeable seal parts, the sealing performance gains zero leakge at bi-directional sealing.
Sealing materials have the advantages of anti-aging, corrosion resistant, long duration,etc.

Application Standards
Design standard: GB/T12238-89 ；CJ/T 261-2007
Flange standard: GB/T9113.1-2000 ; GB/T9113.2-2000 ; GB/T9115.1-2000 ; JB78

Face-to-face: GB/T12221-1989

Pressure test: GB/T13927-2008 ; JB/T9092-1999

Main Technical Parameter

Nominal Diameter	DN(mm)	50~2000
Nominal Pressure	PN(MPa)	0.6	1.0	1.6
	Intensity Test	0.9	1.5	2.4
	Seal test	0.66	1.1	1.76
	Air Test	0.6	0.6	0.6
Leakage	<0.1 XDNmm³/s (Conforming to GB/T13927 Standard)
Applicable Medium	Air / Water / Steam / Coal Gas / Oil Product / Alkali / Saline with low corrosive service
Method	Worm gear / Pneumatic / Electric / Manual

size

DN Nominal Diameter		Face-to-face (Standard)	External dimension (Reference)				Connection dimension(standard)
DN Nominal Diameter		Face-to-face (Standard)	External dimension (Reference)				0.6MPa		1.OMPa		1.6MPa
mm	inch	L	H	HO	A	B	D0	n-d	D0	n-d	D0	n-d
50	2	43	63	306	180	200	110	4-14	125	4-18	125	4-18
65	2 1/2	46	70	321	180	200	130	4-14	145	4-18	145	4-18
80	3	46	83	346	180	200	150	4-18	160	8-18	160	8-18
100	4	52	105	387	180	200	170	4-18	180	8-18	180	8-18
125	5	56	115	411	180	200	200	8-18	210	8-18	210	8-18
150	6	56	137	447	270	280	225	8-18	240	8-22	240	8-22
200	8	60	164	572	270	280	280	8-18	2*5	8-22	295	12-22
250	10	68	206	646	270	280	335	12-18	350	12-22	355	12-26
300	12	78	230	738	380	420	395	12-22	400	12-22	410	12-26
350	14	78	248	761	380	420	445	12-22	460	16-22	470	16-26
400	16	102	289	877	450	470	495	16-22	515	16-26	525	16-30
450	18	114	320	938	480	490	550	16-22	565	20-26	585	20-30
500	20	127	343	993	480	490	600	16-22	620	20-26	650	20-33
600	24	154	413	1131	480	490	705	20-26	725	20-30	770	20-36
700	28	165	478	1476	640	660	810	24-26	840	24-30	840	24-36
800	32	190	525	1533	640	660	920	24-30	950	26-33	950	24-39
900	36	203	585	1655	750	860	1020	24-30	1050	28-33	1050	28-39
1000	40	216	640	1765	850	900	1120	28-30	1160	28-36	1170	28-42
1200	48	254	755	1995	850	900	1340	32-33	1380	32-39	1390	32-48
1400	56	279	910	2310	1000	925	1560	36-36	1590	36-42	1590	36-48
1600	64	318	1030	2595	1000	925	1760	40-36	1820	40-48	1820	40-56
1800	72	356	1140	2810	1100	980	1970	44-39	2020	44-48	2020	44-56
2000	80	406	1250	3100	1100	980	2180	48-42	2230	48-48	2230	48-62

Please consult customer service before placing an order( in order to confirm with size and material of the relevant product).

Q: Butterfly valve D41W-1, 41, W, 1, respectively, what does that mean?: This butterfly valve in our factory called butterfly, 4 represents the connection of the flange connection flange is French, 41 in 1 on behalf of butterfly valve, W represents the body seal, is C that is actually the correct type of cast steel, should be D41W-1C. Suitable for ventilation, smoke, and these media.

Q: 16 inches below the choice of electromagnetic valve can be the same, it turned out to be DN200 election 1/4, and now there are DN350 can also use this? With it, limiter, pressure relief valve, locator model will change?: DN200 pick 1/4DN350, DN400 corresponding solenoid valve, you can choose 3/8 hose 12mmOther accessories are related to valve path and pressure. If the same series, the valve has no change at all.

Q: Check valve; flexible joint `; installation order of electric butterfly valve: The flexible rubber pipe joint is first, then the check valve, the electric butterfly valve and the gate valve.

Q: Seat has said to the previous owner that the car needs a new air mass meter and dump valve.I am putting a new air mass meter on it.Does it have a dump valve.I know very little on this subject.: every turbo will have a dump valve(waste gate) to regulate the boost to the engine Dump valves are fitted to the engines of turbo charged cars and sit between the turbo outlet and the throttle body. When transitioning from a boosted state to a closed throttle state (as in between shifts), due to inertia, the turbo continues to pressurize air, but the closed throttle prevents the compressed air from entering the engine. In this case the pressure exceeds the preset spring pressure in the dump valve and the excess pressure is bled off to atmosphere. Even with a dump valve the compressed air acts as a brake on the turbo (slowing it down), because the pressure on the backside of the turbo is at a higher pressure than on the front side (and the air actually wants to flow through the turbo backwards). A blowoff valve is a more elegant solution to this problem by allowing the turbo to freewheel when the throttle is closed (equalizing the pressure on both sides of the turbo). Unlike a dump valve a blowoff valve can be used at multiple boost settings without reconfiguration. Blowoff valves are sometimes incorrectly called dump valves because they serve a similar function, but they are very different solutions to the same problem.

Q: Fire, the signal butterfly valve flange connection or welding?: 1, do a good job with flange.2, flange (Flange), also known as flange, flange plate or edge. A flange is a part that is connected between the pipe and the pipe, used for the connection between the ends of the pipe. It is also used for the flange on the entrance and exit of the equipment. It is used for the connection between the two devices, such as the reducer flange. Flange connection or flange joint means that the flange, the shim and the bolt are mutually connected as a group of three detachable sealing structures. Pipe flanges are flanges used for piping in pipe installations. They are used on equipment and refer to the entrance and exit flanges of the equipment. The flange is lined with bolts to secure the two flanges. Gaskets for gaskets between flanges. Sub threaded flange connection (threaded connection), flange welding flange and flange clamp. Flanges are used in pairs. Low pressure pipes can be made of wire flanges and welded flanges with pressures of more than four kilograms. Add a gasket between the two flanges and secure with bolts. Different pressure flange thickness is different, they use the bolt is also different. Water pump and valve, and in the pipe connection, these equipment parts of the equipment also made corresponding flange shape, also known as flange connection. Any connecting parts that are bolted and closed in the vicinity of the two planes are generally referred to as flanges, such as the connections of the ventilation ducts, which can be called flanges". However, this connection is only part of a device, such as flanges and pumps connected, it is not good to call the water pump flange parts". Relatively small, such as valves, can be called flanges".3, also known as welding: welding, melt, is a kind of heating, high temperature or high pressure way of metal or other thermoplastic materials such as plastic manufacturing process and technology.

Q: How does the pneumatic butterfly valve control the angle of opening?: This is really not good, control seems to be pneumatic defects, can only rely on the feeling

Q: Where are the exhaust valves, mud valves and butterfly valves?: Chemical plant with colloid, puffed agent and granule. Wine industry, paper industry. Butterfly valves are used in petroleum, chemical, food, pharmaceutical, textile, water and electricity, ships, urban water supply and drainage, smelting, and energy systems as regulating and intercepting devices.

Q: What are single eccentric and double eccentric in butterfly valves? What's the difference, please explain in detail?: Eccentric butterfly valve is divided into single eccentric butterfly valve, double eccentric butterfly valve, three eccentric butterfly valve, variable eccentric butterfly valve.Single eccentric butterfly valve: extrusion problems, address concentric butterfly valve and valve seat of the resulting in a single eccentric butterfly valve, the structural characteristics of the stem axis deviated from the disc center, so that the butterfly is no longer a rotary bottom plate, axial dispersion, reduce the excessive squeezing and the lower end of the seat of the butterfly board.

Q: What are the functions and uses of butterfly valves?: Butterfly valve (English: butterfly valve) refers to the closure of parts (valve or butterfly plate) for the disk, around the valve shaft to achieve rotation and closing of a valve, the main cut off on the pipe and throttling role. 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.

Q: My bike has now 6200 miles on the odometer. The manual says that a valve adjustment should be performed every 6000 miles. But the bike runs fine. Can I just have the valve checked or should I have them adjusted even though the bike is fine? What will happen if I just keep riding it?: In reality, lots of bikes go their entire lives without a valve adjustment. In my opinion that is a great way to ruin a bike though. They have a maintence schedule for a reason. If a valve isn't seating, it can hurt performance and the valve will not be able to transfer heat to the head. That can burn a valve and cause detonation. You have to check valves to adjust them, and the labor for just checking will be nearly the same or identical to doing the adjustments. I do all my own wrenching, so money isn't really an issue, but if I were you, I would just bite the bullet and take it in.

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