Double Disc Butterfly Type Check Valve System 1

Double Disc Butterfly Type Check 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
Application: Fresh water, sewage, sea water, air, vapor, food, medicine, oils. Acids, alkalis, salt etc.

Item	Wafer type check valve
Standard	DIN/ANSI/BS
Body material	CI/DI/CS
Disc material	SS
Pressure	PN16/CLASS125

Q: What does "DN25 Q41F46-16C" mean?: DN is nominal diameter, nominal diameter (or nominal diameter), that is, all kinds of pipe and pipe accessories of general diameter of 25 mm

Q: O ball as general regulation of opening extent: According to the actual demand, turn 90 degrees from the closed state to the maximum opening.

Q: What's the difference between a copper ball valve and a stainless steel ball valve?: Copper ball valve corrosion resistance is excellent, switch operation is smooth, labor-saving, durable without leakage.Stainless steel will not cause corrosion, pitting corrosion, corrosion or wear, and high temperature resistance.The average stainless steel is more expensive

Q: Where are the natural gas ball valves produced?: Do not know, do not know, may be in the area where the factory is TrumanHope to solve your problem.

Q: What does "2P" ball valve mean?: The left valve body and the right valve body consist of two parts.

Q: Difference between fireproof and antistatic ball valve and ordinary ball valve: Fire valve is generally aimed at soft sealing material valve, that is, after the fire on the valve, the ball valve can rely on medium force and metal valve seat (body) contact, to achieve sealing, so that the fire does not go down the pipeline. Anti-static valve is for soft sealing material of the valve, when the ball switch and soft seal friction, will produce static electricity, if the pipe is taking the flammable and explosive medium is very dangerous, so the valve will set a device outside the sphere will Unicom electrostatic oriented, to prevent static electricity.Generally like the market valve, a little better quality, they are the default valve is fire, anti-static, the production costs of these two types of valves is bad, at most two or three dollars, which is still much.

Q: What does 1000WOG mean on a ball screw valve?: It's also a standard, huh?

Q: DN20 pressure 6000PSI, one piece of thread on the threaded, full diameter ball valve body length and flow hole to how much?: 3, the flange of the same caliber and cavity size, the premise is to ensure the gate open without collision resistance, but the size and thickness of screw and the number can be determined with reference to the parameters of the same diameter flange. Finally, the point is that in mechanical design, as long as the design is reasonable, there is nothing right or wrong, but it is possible that a design will be more appropriate.

Q: What are the use of all - way ball valves and reducing ball valves respectively? What are the advantages?: Ball valves used for conveying viscous, easily slagging medium piping shall be of all sizes, allowing regular blow through of wax scraper. Used to transport gas or physical properties similar to the water medium of the pipeline should be used to reduce the diameter of the ball valve, because its weight than the full diameter of the ball valve about 30%, is conducive to reducing pipeline load and reduce costs.