Ductile Iron Body Bronze Disc Double Disc Check 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.

ItemWafer type check valve
StandardDIN/ANSI/BS
Body materialCI/DI/CS
Disc materialSS
Pressure  PN16/CLASS125

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Q:Replacement method of PPR hot melt ball valve
The above problems belong to the wire type, and the name is: double live catch valve, directly loosen the lock nut, replace the valve can be.When the valve is purchased, the merchant sells a full valve. When the change is made, both ends of the live joint lock nut are removed and the valve is directly connected with the original lock nut on the pipe.
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:Advantages and disadvantages of ball valves and scope of application?
Ball valve through the circular channel and smooth, compact ball valve, so the fluid through its resistance is very small (strong circulation). Quick and quick opening and closing, easy installation and more connection. Wide range of use. Its shortcomings, high cost.
Q:What does "all pass" ball valve mean?
Simply put, from the valve side of the runner hole, put a ball of the same diameter can pass to the other side, that is, all pass ball valve
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.
Q:3/43/8 above the ball valve is not usually said of the big ball valve?
Ball valve above the 3/4, 3/8, refers to the ball valve connector, thread connection water pipe diameter, 3/4, 3/8 is the pipe diameter of the British size, 3/4 is 6 in charge, equivalent to 19.1 mm diameter; 3/8 is 3 in charge, 9.5 mm. Of course, the larger the ball valve, the greater the diameter.
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 does "ball pq340h-10c-1200" mean?
This is the worm gear eccentric hard seal hemisphere valve, 10 kilograms of pressure, caliber is 1200.
Q:What is the difference between floating and fixed ball valves?
Ball valve according to whether the ball is supported, can be divided into spheres, floating and fixed type of two.
Q:What's the advantage of using an electric ball valve?
The electric ball valve uses electric control, not very suitable in very dangerous conditions, the electric ball valve belongs to the valve control, remote control, manpower, and convenient, and now all the enterprises have to use the valve in the automatic control to change

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