Ductile Iron Knife Gate Valve

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Product Description:

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

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Q:Buy Ball Valves
You take this valve to the building materials market, see the valve handle can be sheathed in your valve stem, the valve handle is arranged to buy, your valve
Q:Must I use the ball valve for the heater?
Valve main points and angle valve, ball valve in the water pressure is large enough to use, angle valve can increase the pressure of a little water.
Q:Allowable leakage on ball valves: what does CLassVI mean?
This is the valve leakage level, level VIThe GB/T4213-92 standard specifies six grades for the valve leakage. The specific requirements are shown in the standard table. The lowest level is level I, without specific requirements; the highest level is grade VI, i.e., the bubble grade.
Q:The valve nominal 1/2, 3/4 is how much?
1/2 equivalent to the national standard of 15mm, 3/4 equivalent to GB 20mm. That is, DN15 and DN20
Q:How much pressure can the flange ball valve withstand?
How many can, each kind of pressure specification has the different material quality, the thickness request, the ball valve can also use in the high pressure class.
Q:Flange ball valve Q41P3-150C2, DN50, RF, WCB/316 hardening, each letter number represents what?
Q-- ball valve; 4-- flange connection floating structure; 1---; P--- sealing material: boroning steel; nominal pressure 150:--- 15MPa;C--- body material: carbon steel; DN50--- nominal diameter; RF--- flange sealing form (convex flange); WCB--- carbon steel castings; 316---- austenitic stainless steel
Q:What does 1000WOG mean on a ball screw valve?
It's also a standard, huh?
Q:Ball valve Q41f and Q11f difference, whether universal?
Yes, it works,The main valve interface shall be in line with the interface on the pipe,No, the valve is a thread, and the pipe joint is flanged, so it won't work.
Q:Advantages of track ball valves
1., the fluid resistance is small, and the coefficient of resistance is the same length as the pipe section. 2., simple structure, small size, light weight. 3., close and reliable, at present the ball valve sealing surface materials widely used plastic, good sealing, vacuum system has also been widely used. 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.
Q:What are the advantages of an air operated ball valve in comparison with other types of valves?
In full open or full closed, the ball and valve seat sealing surface and dielectric isolation, the media through, will not cause the valve sealing surface erosion.Wide range of applications: diameter from small to a few millimeters, large to several meters, from high vacuum, high pressure can be applied. As the ball valve has a wipe in the opening and closing process, it can be used in suspension with solid particles in the medium.High processing accuracy: expensive, high temperature should not be used, such as impurities in the pipeline, easy to be blocked by impurities, leading to the valve can not open.

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