Cast Iron Hand Lever Wafer Butterfly Valve

Cast Iron Hand Lever Wafer Butterfly Valve System 1

Cast Iron Hand Lever Wafer 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 is retractable hemispherical valve? What's the area with the manual hemisphere valve?: It has the telescopic deformation caused by heating and absorbing the axial, transverse and angle of the absorption pipeline. Absorb the vibration of equipment and reduce the influence of equipment vibration on pipeline.

Q:Valve and ball valve is the same thing? Don't know don't speak: Ball valve is only a kind of valve, is very common, the middle of the spool is spherical.Many types of valves, in addition to ball valves, there are common gate valve, stop valve, butterfly valve, check valve and so on.

Q:DN15 ball valve with a bit of outer wire: Outside the wire of 1/2, which is DN15, the wire wire twisted together just bite

Q:What's the difference between air valves, butterfly valves and ball valves?: 1. air valve is an important component of the compressor cylinder, which is responsible for the inhalation and discharge of gas. The traditional air valve is composed of valve seat, valve plate, spring, lift limiter, bolt and so on.2 also known as butterfly valve, control valve has a simple structure, can be used for the work of low pressure pipeline medium valve butterfly valve switch control is closed parts (disc or disc) is a disk, around the valve axis to achieve the opening and closing a valve in the pipe is cut. Off and throttling effect.3. ball valve: opening and closing parts (sphere) driven by the stem, and around the square ball valve for the axis of the rotating valve.Valve (Famen) is a control component in the fluid delivery system. It has the functions of closing, adjusting, guiding, preventing reverse flow, stabilizing voltage, shunting or overflow and releasing pressure.Valves used in fluid control systems, from the simplest stop valve to a very complex automatic control system used in a variety of valves, a wide range of varieties and specifications. Valves can be used to control air, water, steam, a variety of corrosive media, mud, oil, liquid metal and radioactive media and other types of fluid flow. The valve according to the material is divided into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316), chrome molybdenum steel, chromium molybdenum vanadium steel valves, valve, dual phase steel valves, plastic valves, non-standard customized valve material etc..

Q:Q4110 what is the ball valve? What does each number stand for?: It's Q41-10Q- stands for ball valves; 4- stands for connecting flanges; 1- is straight through floating ball; 10 means valve bore 10If it's Q4110, you're not sure

Q:Is the ball valve ball valve?: One is with an eccentric, hemispherical valve most market means. This eccentric semi ball valve disc shaped like a hemisphere valve valve switch trip also is 90 degrees, but the rotation center of the valve (the valve shaft and the valve seat center (body) or line center) with an eccentric, made after the valve opening immediately from the valve seat, the sealing ball valve and the movement principle is not consistent.

Q:Calculation formula of ball valve flow: The sectional area of diameter of DN15, DN25 and DN50 is respectively:DN15:15*3.14/4=176.625 mm, 0.0177 square decimeter.DN25:25*3.14/4=490.625 mm, 0.0491 square decimeter.DN50:50*3.14/4=1962.5 mm, 0.1963 square decimeter.A pipe flow rate of V=4 M / s V=40 decimeter / s, and the 1 liter =1 cubic meter, the pipe flow respectively (cross-sectional area multiplied by the velocity):DN15 pipe: flow Q=0.0177*40=0.708 L / sec,It's 2.55 cubic meters per hour.DN25 pipe: flow Q=0.0491*40=1.964 L / sec,It's 7.07 cubic meters per hour.DN50 pipe: flow Q=0.1963*40=7.852 L / sec,It's 28.27 cubic meters per hour.Note: a flow rate must be given to calculate the flow rate, which is calculated in accordance with 4 meters per second. Reference: http://zhidao.baidu /question/77687541.html answer: good night dream | six | 2010-5-24 22:46It's 600 cubic meters / hour!Flow Q=600 m3 / h = 0.167m^3/sThe flow rate is V=4Q/ (3.1416D^2) = 4*0.167/ (3.1416*0.090^2) = 26.25 m/s, and the flow velocity is very large!It could be 600 cubic meters per day:Flow rate Q=600 m3 / day = 0.00694 m^3/sFlow rate V=4Q/ (3.1416D^2) = 4*0.00694/ (3.1416*0.090^2) = 1.09 m/s flow rate is normal.

Q:The difference between gate valve, ball valve and butterfly valve: Gate valve: there is a flat plate in the valve body which is perpendicular to the direction of the medium flow, and the plate is lifted and closed.Features: good tightness, fluid resistance small, open and close force is small, widely used, also have to regulate the flow performance, generally applicable to the large diameter of the road.Ball valve: the use of a hole in the middle opening of the ball as the spool, by rotating the ball to control the opening and closing of the hair.Features: the structure is simpler than the gate valve, small size, low fluid resistance, and can replace the role of gate valve.Butterfly valve: closure is a disk-shaped, around a fixed axis rotation of the valve body.The utility model has the advantages of simple structure, small size and light weight, and is suitable for making larger diameter valves. As the sealing structure and materials are still problems, it is only used for low pressure, for the transport of water, air, gas and other media!Own code words, hope to adopt!

Q:What does "ball Q41F-16" mean?: Q- ball, 4- flange connection, 1- DC channel, floating ball, F- sealing material for fluorine plastic, 16- nominal pressure of 16 kg, the valve body material for gray cast iron. If you want to know the details of the valve named model establishment, can refer to the JBT-308-2004 standard.

Q:Replacement method of PPR hot melt ball valve: 2, if the valve is directly welded on the pipeline, you need to stop the operation of pipeline, and cutting, the need to replace the valve flange or screw type ball valve, ball valve flange need two "steel plastic adapter" heat welding with the original pipe, the flange type ball valve can be installed; the screw type two single head, a head and pipe welding / bonding, joint head and ball valve with wire of threaded connection.

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