Ductile Iron Body and Disc Double Flange Butterfly Valve

Ductile Iron Body and Disc Double Flange Butterfly Valve System 1

Ductile Iron Body and Disc Double Flange Butterfly Valve

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Cast iron valves
Size: DN40-1200 or 1.5-48' or above
Working Pressure: PN10/16/20/25, 150LB-2500LB
Suitable temperature: -45c~150c
Standard:
(1)Design and manufacture: DIN3352, BS5163, BS5150, ANSI B16.34, API600, API6D, API609, EN593, GB, T12238
(2)End connection: ANSI B 16.1, ASME B16.5, B16.47, B16.25, B16.34, JISB2212-JISB2214, DIN2543-2550, EN1092, AS2129, ISO 5211
(3)Wall thickness: API600, BS1868
(4)Face to face (end to end): EN 558, ASME B16.10, DIN3202, ISO5752, JIS, API609, MSS, BS5155
(5)Inspection and test: API598, EN12266-1, BS6755, API6D, ISO5208
Materialfor main parts:
(1)Body: CI, DI, WCB, ALB, CF8, CF8M
(2)Disc: DI, ALB, C95400, Rubber lined Disc, 1.2501, 1.4529, CF8M, CF8, Hastelloy
(3)Stem: SS416, SS410, SS304, SS431
(4)Seat: NR, Hypalon, EPDM, Neoprene, NBR, Wear-Resistant EPDM, Viton, Silicon, Heat-Resistant EPDM, WhiteNBR, WhiteEPDM, EPDM, PTFE
Coating: Fusion bonded epoxy coated
Connection type: Flanged type, Push-on type, Mechanical Joint type, Plain ends type
Sealing: Soft sealing or metal-to-metal seat, Flexible graphite
Operation: Manual, Pheunatic, Electric, Hydraulic and Pnewmatic-Hydraul
Appropriate medium: Air, water, sewage, steam, coal gas, oil
Packaging: Export polywood cases, or as per customers' requirements
Delivery Time: 25 days after order conformed
Payment: By T/T or L/C
Application: Fresh water, sewage, sea water, air, vapor, food, medicine, oils. Acids, alkalis, salt etc.

Item

Q:What are the use of all - way ball valves and reducing ball valves respectively? What are the advantages?: But for the need for regular pigging of the pipeline, no matter what medium to transport, you must use full diameter ball valve.

Q:Pneumatic two stage ball valve principle: Pneumatic refers to the valve is automatic operation, power is compressed air;Two paragraph refers to the structure of the valve, that is, the body is composed of two parts connected by flanges, of course, there are other forms of a chip, three pieceTwo and two pieces mean one thing

Q:What are the advantages of an air operated ball valve in comparison with other types of valves?: Compared with other kinds of valves, pneumatic ball valve has angular travel, output torque, quick, stable and reliable opening, wide application and the following advantages.Antistatic function: a spring is arranged between the ball body, the valve stem and the valve body, so that the static electricity generated by the switching process can be exported.Long service life: because PTFE and other materials have good self lubrication, and friction loss of the ball is small, so pneumatic ball valve.Fluid resistance is small: pneumatic ball valve is the classification of all types of liquid resistance is the smallest, even if the diameter of pneumatic ball valve, its fluid resistance is quite small.Stem seal is reliable: it has two sealing surface, and the ball valve sealing surface materials widely used, all kinds of plastic, good sealing, can achieve full seal. It is also widely used in vacuum system. Because the stem only for imitation rotation transported without movement, stem packing seal is not easy to damage, and sealing ability increased with the increase of the pressure medium.Valve seat sealing performance: the use of PTFE and other elastic materials made of sealing ring, the structure is easy to seal, and pneumatic ball valve sealing capacity as the medium pressure increases.

Q:What is the difference between ball valve and butterfly valve?: The ball valve and butterfly valve butterfly valve ball valve and the maximum difference between the difference between the two is the valve opening and closing parts is a panel, which is a ball valve, butterfly valve plate and the ball valve is rotated around its own axis for movement of the ball valve is a spherical sealing surface.The valve (Valve) is a mechanical device that controls the flow, flow, pressure, temperature, etc. of a fluid medium. The valve is the basic component of the piping system. Valve fittings are technically similar to pumps and are often discussed as a separate category. Valves can be operated by hand or hand wheel, handle or pedal, or by control to change the pressure, temperature and flow change of fluid medium. The valve can perform continuous or repeated operations on these changes, such as a safety valve installed in a hot water or steam boiler. In more complex control systems, automatic control valves are required depending on external inputs (i.e., regulating the flow through the pipe to the changing setting points). Automatic control valve without manual operation, according to its input and settings, so that the valve accurately control the requirements of fluid medium. The valve according to the material is divided into cast iron valves, cast steel valves, stainless steel valves, chrome molybdenum steel, chromium molybdenum vanadium steel valves, valve, dual phase steel valves, plastic valves, non-standard customized valve material etc..

Q:To help explain the meaning of the ball valve Q11H-16H, combined with the actual, such valves have wood?: JB T308-2004 valve model preparation method and "GB1048-2005 pipe element nominal pressure definition and selection", there are various types of valve interpretation:Q11H-16HQ: valve type: (Q) ball valve1: connection form: (1) internal thread1: structure form: (1) through flow channelH: sealing surface or lining material: (H) Cr13 stainless steel16: pressure code: (16) 1.6MPaH: body material: (H) Cr13 stainless steel

Q:About the characters on the ball valve (what do s and O mean?): Switch and multi way valve in the pipeline not only can flow, and flow diversion, flexible control of the medium, but also to turn off any channel to the other two channels. This kind of valve should be installed horizontally in the pipeline. In accordance with the way to drive the ball valve is divided into: pneumatic ball valve, electric ball valve, manual ball valve.

Q:Home tap water valve (ball valve) half open or well open, open half is not love rust live?: Open it all. If the water is half opened, the water on the upper deck will not go up or down due to low water pressure. As the owner said, half of it will rust. So...

Q:Q41F-16-64P this is the ball valve, what type, please answer in detail, thank you!: Q--- ball valve4---- flange connection1----- ball valve is floating ball (ball valve has floating ball and fixed ball points, 7 represents the fixed ball)F----PTFE- PTFE seal (PTFE PTFE),16-64---- ball valve nominal pressure is 16-64 kg (1.6-6.4Mpa)P---- ball valve body material is 304 stainless steel

Q:What does one inch of an ice ball refer to?: Ball valve inch refers to the nominal diameter of the valve is 1 inches, that is, DN25 valves, mostly threaded connections.

Q:What's the difference between air valves, butterfly valves and ball valves?: 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.Ball valve: opening and closing parts (sphere) driven by the stem, and around the square ball valve for the axis of the rotating valve.Shanghai Guardian valve, all types of valves are industry-leading.

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