API Butterfly Valve ； Three-eccentric structure valve
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 pc
- Supply Capability:
- 10000 pc/month
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Specification
Material:
Stainless Steel
Pressure:
Medium Pressure
Temperature of Media:
-29°C to 425°C
Power:
Manual
Media:
water / sea water / oil product
OD（Outer Diameter: inch）:
1765
Size(inch):
36''
Pressure（LB）:
300
Net Weight (kg):
1042
The main structure of 815 & 830 series butterfly valve follows wafer amd flanged three-eccentric structure, but 815 & 830L series butterfly valve consist of body round with lugs and the desgin of single flange with bolting holes. 815 & 830 series buttferfly valve is widely applicable to petroleum, chemical industry, environmental protection water treatment, high building, water supplying and drain pipelines, and so on.
For the three-eccentric stucture, reliable sealing ability, it assure not to contact the seat when the disc is in open position and eliminate uneven load of the seats, extend the usage lifetime, and also assure the reliable sealing ability with high temperature resistant, friction resistant, corrosion resistant, etc.
Applicable Standard
Design standard: API609-83 ; CJ/T261-2007
Flange dimension: ANSI B 16.5
Face-to-face: ANSI B 16.10-1992
Pressure test: API 598-82
Main Technical Paramerter
| Nominal Diameter | DN(mm) | 830W | 830L |
| 2"-36" | 2"-36" | ||
| Nominal Pressure | PN(MPa) | 150Lb | 300Lb |
Ps(MPa) Test pressure | Intensity Test | 3.0 | 7.5 |
| Seal test | 2.2 | 5.5 | |
| Applicable Medium | Water, sea water, oil product | ||
Applicable Temperature | -29°C to 425°C | ||
Material for main parts
| Parts Name | Material |
| Body | WCB，304，316，316SS，CF8M |
| Disc | WCB，304，316，316SS，CF8M |
| Seats | 316，2Cr13，1Cr18Ni9Ti |
| Steam | 316，Fluorine plastic |
| Packing | Flexible graphite，Fluorine plastic |
Please consult customer service before placing an order( in order to confirm with size and material of the relevant product).
- Q: I am confused as to the answer of this question. Please help.Indicate the status of the mitral, tricuspid and semilunar valves (whether they are open or closd) during the various phases of the cardiac cycle. Discuss the pressure in each of the relevant chambers or blood vessels during the phases with reference to the opening or closing of the valves.
- A heartbeat is a two-part pumping action that takes about a second. As blood collects in the upper chambers (the right and left atria), the heart's natural pacemaker (the SA node) sends out an electrical signal that causes the atria to contract. This contraction pushes blood through the tricuspid and mitral valves into the resting lower chambers (the right and left ventricles). This part of the two-part pumping phase (the longer of the two) is called diastole. The second part of the pumping phase begins when the ventricles are full of blood. The electrical signals from the SA node travel along a pathway of cells to the ventricles, causing them to contract. This is called systole. As the tricuspid and mitral valves shut tight to prevent a back flow of blood, the pulmonary and aortic valves are pushed open. While blood is pushed from the right ventricle into the lungs to pick up oxygen, oxygen-rich blood flows from the left ventricle to the heart and other parts of the body. After blood moves into the pulmonary artery and the aorta, the ventricles relax, and the pulmonary and aortic valves close. The lower pressure in the ventricles causes the tricuspid and mitral valves to open, and the cycle begins again. This series of contractions is repeated over and over again, increasing during times of exertion and decreasing while you are at rest. The heart normally beats about 60 to 80 times a minute when you are at rest, but this can vary. As you get older, your resting heart rate rises. Also, it is usually lower in people who are physically fit.
- Q: What's the difference between a butterfly valve and an eccentric butterfly valve? What is the difference in field applications?
- Eccentric butterfly valve and ordinary butterfly valve, when the butterfly valve is opened, the eccentric butterfly valve sealing surface will reduce great wear, in the opening, the disc will leave the valve at the first time the sealing surface!
- Q: How big is the butterfly valve with a diameter of 80?
- Generally speaking, especially small caliber, the butterfly valve will not use the variable diameter. Therefore, the butterfly valve DN and pound class selection, according to the field pipeline flange DN and pound level.So, in a strict sense, the caliber of the butterfly valve and the diameter of the pipe have not much relationship.Specific to your pipe diameter, there are questions: 80 diameter refers to the outer diameter or inside diameter? Yes, there is no flange on the site. Do you need a pair of flanges to be supplied?
- Q: What is the electric butterfly valve? Please, great God!
- ZSDF type fire signal butterfly valve uses: top of the ZSDF type fire signal butterfly valve with the valve opening and closing signal device, when the valve is closed by 25% (open degree 4/1), the signal device output signal was mistakenly closed to the fire control center.
- Q: 1st where is my zone valve? I have an old Burnham gas baseboard heater2nd What do I do?My last resort is calling a proffesional.
- if your sure its not the thermostat than the zone valve should be near the boiler in the copper line. Most valves have a flat lever that slides when it is powered up to open. You can open manually by sliding the lever
- Q: Butterfly valve general use occasions
- Valve is especially suitable for low differential pressure, large diameter, large flow of gas and slurry liquid. For general control valve, DN300mm is big valve, only individual to DN450, and for the butterfly valve, DN500 below is a small valve, DN500 ~ 1000 is the standard valve, the largest butterfly caliber up to 9m. Visible, large diameter pipe with the main butterfly valve.
- Q: What's the difference between turbine butterfly valve and manual butterfly valve?
- The turbine can light and close the valve here. It is more labor-saving and reliable. It is closed and open. Manual operation is relatively difficult, but the manual action is very fast. Fast switching. General large bore turbine.
- Q: Butterfly valve network and ordinary butterfly what is the difference?
- 1. The butterfly valve of the pipe network adopts an eccentric structure. When closed, it has the function of closing and tightening. The sealing performance is reliable. After opening and closing, the cover is completely sealed, and the cover is completely out of contact, so as to ensure that the sealing surface is not damaged.2, the sealing surface is made of stainless steel, corrosion resistant, high temperature resistant, long service life. With two-way sealing function, medium flow is not affected by the installation restrictions (if only one-way control medium should be used to seal the installation direction) is not affected by a single space, can be installed in the any direction.
- Q: Butterfly valve, two-way pressure and one-way pressure what is the difference?
- One way sealing butterfly valve is the front of the butterfly valve. When it closes, it must face the direction of the medium. The medium flows only in one direction, and the arrow on the valve body indicates the direction of the flow direction of the medium. Attention should be paid to the flow direction of the medium during installation. Two way butterfly valve is butterfly plate can face or back to the media flow direction, installation without attention to medium flow direction, in the valve body also does not indicate the direction of the medium flow arrow. Two way sealing butterfly valve stem force is greater than one-way butterfly valve stem. Design, the same diameter, pressure butterfly valve, two-way sealing butterfly valve rod diameter than one-way sealing butterfly valve stem diameter.
- Q: Which is expensive, butterfly valve?
- Gate valve and butterfly valve can not simply take the price there to compare, look at the actual design requirements of the project. General small caliber are selected by the valve, because of better sealing performance, service life is long, the maximum diameter of valve is usually choose to use the butterfly valve to the pipeline DN800800 above, because the valve is cheap, the price is only half of the large diameter valve. Also some pipes from the use of quality point of view, will choose the gate valve. How to use it, please mark the map
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API Butterfly Valve ； Three-eccentric structure valve
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 pc
- Supply Capability:
- 10000 pc/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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