Ductile Iron Butterfly Valves DN100 PN16

Ductile Iron Butterfly Valves DN100 PN16 System 1

Ductile Iron Butterfly Valves DN100 PN16

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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
Application: Fresh water, sewage, sea water, air, vapor, food, medicine, oils. Acids, alkalis, salt etc.

Item

Q: Is the ball valve installed in a direction?: Valve installation generally no direction required, any end of the valve can be mounted on the upper end. If the valve marked the direction, then it should be installed in the direction of tagging installed.

Q: What does telescopic ball valve mean? What does it mean?: An expansion valve is mostly for repair or replacement of the water meter behind the expansion is the activity space, for example for water when the water meter is just let it back so easily won, for good and put it out to tighten the gentry good handle table.

Q: What are the uses and characteristics of copper ball valves?: Role of copper ball valve:Brass ball valve in the pipe fluid is mainly used for cutting, distribution and change the direction of media flow, designed as V shaped opening of the ball valve, also has a good flow adjustment function.

Q: Is a plastic ball valve, connecting France is hot melt.: Visible, electric ball valve in daily life, industrial manufacturing and other fields have great application and market space. With the development of the times, the electric valve also put forward higher requirements, such as digital remote control, so the development of this industry, cannot do without the progress of technology, from the past to the ordinary valve electric valve electric valve to now, by the digital intelligent valve, look first to the application of new technology on the product rapidly the transformation and development of new products to meet market demand.

Q: Maintenance of PPR pipe ball valve is live or hot melt?: CharacteristicFirst, wear-resisting; because the hard sealing ball valve spool is alloy steel spray welding, sealing ring is alloy steel surfacing, so hard sealing ball valve in the switch will not cause too much wear and tear. (its coefficient of hardness is 65-70)Two, good sealing performance; because the hard sealing ball valve sealing is artificial grinding, until the valve core and the sealing ring completely in conformity with the use. So his sealing performance is reliable.Three, switch light; because the hard sealing ball valve sealing ring at the bottom of the spring, so that the sealing ring and valve tightly held together, so when the outside force exceeds the preload of the spring, the switch is very light.Four, long service life: has been widely used in petroleum, chemical, power generation, paper making, atomic energy, aviation, rockets and other departments, as well as people's daily life.

Q: PE pipe size diameter 3/8, diameter 1/4, material: low density polyethylene, pressure 170psi;Valve material: copper, and PE pipe connection interface with lock nut.Is this connection reliable? Will the pipe break due to excessive compression? Are there any requirements for the size of the joint and the size of the nut?: First, 170psi pressure is not great, not excessive extrusion and rupture of polyethylene, but there will be stress relaxation phenomenon, is a long time there will be some loose, suggest you nut and pipe with tight mechanical connection is good, the data has not been studied, can only give you a suggestion: 24-48 hours after the installation is complete then a proper tight.

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: Ball valve use?: Ball valves are widely used in petroleum refining, long-distance pipeline, chemical, paper making, pharmaceutical, water conservancy, electric power, municipal, steel and other industries, and play a decisive role in the national economy.

Q: What is the difference between ball valve and plug valve?: 2., simple structure, small size, light weight.3. close and reliable. The utility model has two sealing surfaces, and the sealing surface material of the ball valve is widely used in various kinds of plastics, and the sealing property is good, and the sealing can be realized completely. It is also widely used in vacuum system.4 easy operation, open and close rapidly, from fully open to fully closed as long as 90 degree rotation, facilitate remote control.5., maintenance is convenient, ball valve structure is simple, the sealing ring is generally active, disassembly and replacement are more convenient.6. in full open or full closed, the ball and valve seat sealing surface and dielectric isolation, the media through, it will not cause erosion of the valve sealing surface.7., a wide range of applications, from small diameter to a few millimeters, large to several meters, from high vacuum, high pressure can be applied.8., because the ball valve in the opening and closing process of wiping, so it can be used in suspension with solid particles in the medium. Therefore, the landlord can choose the right valve according to their own conditions, and I hope to help you.

Q: Structure design principle of fire ball valve: The purpose of fire protection structure design of valve seat is:(1) effective guarantee in the fire accident, the upstream pressure medium as little as possible into the body cavity through the valve seat, thereby causing internal leakage and leakage. Ensure that fire accidents are not expanded by fire before the firemen arrive at the scene of the accident. After the firemen arrive at the scene, fire equipment can be used to quickly suppress the fire and eliminate fire accidents.(2) to make the structure of the product meets API6D specifications. Fire proof can be obtained through fire test.Fireproof design of valve seat:Set graphite in metal fire valve seat and valve body sealing rings; sealing set fireproof metal in the metal valve seat and ball room. The structure is shown in Figures 1 and 2.

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