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:Into the tap valve, with globe valve or ball valve?
Water valve at home as far as possible not to use the form of valve, gate valve for water, slag better, shut down with the next valve and ball valve.
Q:Ball valve specifications are represented by 2 FF,
FF refers to the form of connection between the valve and the pipe lineFF, or Flat Face, is a common form of flat flange connection
Q:Electric ball valve installation need to pay attention to what?
High valve valve installation tips using general notes 1, the single pole light to put Ji GUI lice before installing the valve should be cleaning the dust inside the pipe with stiff, welding slag and other impurities; connected with the valve connection standard standards 2, pipeline, operating conditions and valve performance.
Q:Is the ball valve the same as the float valve?
Ball valve and float valve is a kind of valve, the ball valve is a valve inside the ball, it is called the ball valve
Q:What does "all pass" ball valve mean?
The ball valve is divided into full bore ball valve, ball valve and three or four valve diameter contraction, full bore ball valve inside and outside of the size of the aperture is consistent, overall were flat, parallel and pipeline fluid, and necking is outside the hole is larger than the hole, the medium flow through the three or four inconsistent.
Q:What are the differences and advantages between O ball valve and V ball valve?
5, high reliability1, the ball and valve seat a pair of sealing pairs, there will be no abrasions, rapid friction and other failures;2, stem into the built-in type, to eliminate the stem under the action of fluid pressure may be caused by the packing gland release flying accident hidden trouble;3 、 adopt antistatic and fireproof structure ball valve, which can be used to transport petroleum, natural gas and gas pipelinesV type ball valve structure of a right angle turn, can achieve flow regulation, according to the V type angle V type sphere, realize different proportions, V type ball valve and valve actuator and positioner supporting the use, the ratio can be adjusted V type valve adjustment for a variety of occasions, with a rated flow coefficient large, adjustable ratio, good sealing effect, regulate the performance of zero sensitivity, small size, can be vertical horizontal installation. For control of gas, steam and liquid medium.V type ball valve for rotary type rectangular structure by V type valve, pneumatic actuator, positioner and other accessories; there is a similar more than 100 of the inherent flow characteristics; dual bearing structure, the starting torque is small, with excellent sensitivity and speed sensors, the shear capacity of strong.
Q:How to distinguish between cold water valve and hot water ball valve?
Used of hot water, soft, sealed, and used in cold water
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:Is a plastic ball valve, connecting France is hot melt.
The development of industrial products is closely related to technology, quality and market. Technology is hard, but the quality of winning products, users can be recognized? Can you pull the market share? Definitely not. I do heating, for all kinds of valves are not unfamiliar, especially domestic on-off type heat meter, more use of electromagnetic valves, mostly belong to ball valve.
Q:To help explain the meaning of the ball valve Q11H-16H, combined with the actual, such valves have wood?
JB T308-2004 valve model preparation method and "GB1048-2005 pipe element nominal pressure definition and selection", there are various types of valve interpretation:Q11H-16HQ: valve type: (Q) ball valve1: connection form: (1) internal thread1: structure form: (1) through flow channelH: sealing surface or lining material: (H) Cr13 stainless steel16: pressure code: (16) 1.6MPaH: body material: (H) Cr13 stainless steel

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