Ductile Iron Dual Plate Wafer 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:Role of ball valve DN20-Q11F-16
Q11F ball valve is to control the circulation and cut-off of the pipeline medium.
Q:How can the eccentric hemisphere valve be repaired? What are the things you should pay attention to when installing?
6, the valve driving device to a fastening bolt before debugging, not allowed to loose. When the valve is used for a long period of time if there is leakage, the driving device limiting fastening bolts loose, counterclockwise rotation of a circle and a locking nut, the valve closed, due to eccentric action to eliminate wear clearance, to ensure that the valve to use, must not be forced to close the valve without release driving device a fastening bolt limit case, this will damage the drive device.7, eccentric semi ball valve is a one-way valve seal, valve seal for the arrow on the body, rather than the medium flow, installation when used as a cut-off valve, and the same medium flow arrow (i.e. being installed), when used as a check valve is used, instead the arrow with the direction of medium (reverse installation).
Q:What is the maximum temperature resistance of the 304 stainless steel ball valve?
What seal do you have?.PTFE sealing maximum temperature: 120 degreesMetal seal maximum temperature: 325-400 degrees, look at the manufacturers.
Q:The difference between gate valve, ball valve and butterfly valve
Butterfly valve plate and the ball valve is rotated around its own axis for movement; valve plate valve for the lifting movement along the axis; butterfly valve and gate valve can adjust the flow through the opening; the ball is not easy to do this.1. The sealing surface of the ball valve is spherical2. The sealing surface of butterfly valve is circular cylindrical surface3, the sealing surface of the gate valve is flat.
Q:About the characters on the ball valve (what do s and O mean?)
O: that's Open (open) S: that's Shut (off).Ball valve (ball valve), standard GB/T21465-2008 "valve terminology" is defined as: "open and close parts (spheres) driven by the stem, and around the axis of the ball valve for rotation of the valve.". Can also be used to regulate and control fluid, strong shear force between the metal seat seal V type ball valve V type ball core and welding hard alloy, especially suitable for containing fibers, small solid particles and other media.
Q:DN20 copper ball valve with large PPR converter connector
See how big your tube is. 20 tubes are straight with 20*1/2 internal teeth, and 25 tubes are straight with 25*1/2 internal teeth
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:Ball valve, PTFE pad inappropriate choice, is not easy to bad ah?
120 - 150. TemperatureChasing the answerYes, but not in a high temperature for a long time, like more than 180 degrees centigrade. Because the gasket can not be used after deformation, it will cause valve leakage.
Q:The difference between ball valve Q341F and Q347F
Ball valves Q341F and Q347F are straight through flow, worm drive, flange connection, soft sealing form. Different from Q341F, it is a floating ball structure, and Q347F is a fixed ball structure.Model meaning: Q34 worm gear flange ball valve, 1: floating ball valve;
Q:Stainless steel ball valve Q41F-16P DN80 weight is
The whole diameter is about 40kg heavyThere is a slight difference between the manufacturers

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