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: Is the ball valve installed in a direction?
- Valve installation generally no direction required, any end of the valve can be mounted on the upper end. If the valve marked the direction, then it should be installed in the direction of tagging installed.
- 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: 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: The difference between a cricket valve and a constant pressure valve
- Ball valve for ball ball column shape and called, is mainly to be closed, and often switch when the fluid flow control to throttle function and design, is the main characteristic of effective throttling, to minimize and reduce the phenomenon of drawing valve and valve seat dip (wash) inhibition, but because of the seat is parallel to the line, change the flow of fluid through the valve seat will be in class.
- Q: Maintenance of PPR pipe ball valve is live or hot melt?
- CharacteristicFirst, wear-resisting; because the hard sealing ball valve spool is alloy steel spray welding, sealing ring is alloy steel surfacing, so hard sealing ball valve in the switch will not cause too much wear and tear. (its coefficient of hardness is 65-70)Two, good sealing performance; because the hard sealing ball valve sealing is artificial grinding, until the valve core and the sealing ring completely in conformity with the use. So his sealing performance is reliable.Three, switch light; because the hard sealing ball valve sealing ring at the bottom of the spring, so that the sealing ring and valve tightly held together, so when the outside force exceeds the preload of the spring, the switch is very light.Four, long service life: has been widely used in petroleum, chemical, power generation, paper making, atomic energy, aviation, rockets and other departments, as well as people's daily life.
- Q: What are the types of vacuum ball valves?
- Shanghai Guardian valve has the production of GUD type electric high vacuum ball valve, GU manual high vacuum ball valve, GUQ pneumatic high vacuum ball valve, welcome to buy, thank you!The utility model has the advantages of simple structure, good tightness, small installation dimension, small driving moment, simple operation and rapid opening and closing
- Q: What does the sealing surface of the ball valve stand for HF?
- HF is the abbreviation of two English words: "Hard Face", which means surface hardening. Usually surfacing is made of Tailai alloy (Alloy 6). Other surface hardening methods include hard chromium plating. This method is used more in the ball valve. But hard chromium plating is prone to small cracks, which reduces its corrosion resistance.
- Q: The difference between ball valve q41f46-16c and q41f46-16
- There is no difference. If the latter model is P, then the stainless steel flange lining fluorine ball valve, the former is cast steel material.Q41F46-16C is the type of ball valve, cast steel flange lining fluorine ball valve!
- Q: Daily maintenance of ball valve
- Longer service life and maintenance free period will depend on several factors: normal working conditions, maintaining a consistent temperature / pressure ratio, and reasonable corrosion dataBall valve in the closed state, there is still pressure fluid inside the valve bodyRemove the line pressure before servicing and leave the valve in the open positionDisconnect the power or air supply before servicingBefore the maintenance, remove the actuating mechanism from the bracketMust be found on the ball valve, the downstream pipeline has been removable pressure, in order to disassemble, disassemble operationIt is important to be careful not to damage the sealing surfaces of the parts, especially non-metallic parts, to remove the O rings. Use special tools when taking apart and re assemblingWhen assembling, the bolts on the flange must be symmetrical and tightened gradually and evenlyThe cleaning agent should be compatible with rubber, plastic, metal parts and working medium (such as gas) in the ball valve. When the working medium is gas, the metal parts can be cleaned by using gasoline (GB484-89). Non metallic parts are cleaned with pure water or alcoholThe non-metallic parts should be removed from the cleaning agent immediately after cleaning and should not be soaked for a long timeNeed to be cleaned by washing the wall after volatile cleaning agent (cleaning agent can not dip silk rub) for assembly, but not for a long time on hold, otherwise it will rust, dust pollution
- Q: Q41F-16-64P this is the ball valve, what type, please answer in detail, thank you!
- Q--- ball valve4---- flange connection1----- ball valve is floating ball (ball valve has floating ball and fixed ball points, 7 represents the fixed ball)F----PTFE- PTFE seal (PTFE PTFE),16-64---- ball valve nominal pressure is 16-64 kg (1.6-6.4Mpa)P---- ball valve body material is 304 stainless steel
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Double Disc Butterfly Type Check Valve
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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