Ventilation Butterfly Valve ；Butterfly Valve ；High quality valve
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 pc
- Supply Capability:
- 30000 pc/month
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Specification
Material:
Steel
Pressure:
Low Pressure
Temperature of Media:
-196°C to 650°C
Power:
Manual,Pneumatic,Turbine,Electrical
Media:
Air / water / steam / coal gas / oil product, etc.
OD（Outer Diameter: inch）:
150
Size(inch):
150
Pressure（LB）:
6
Net Weight (kg):
25
Usage & Feature
The seal ring of ventilation butterfly valve is made of the material same as body material, and the applicable temperature is up to the body material, PN≤0.6MPa， generally used to the pipelines of industry, metallurgy, environmental protection as ventilating and adjusting the flow.
Main features:
Novelty and reasonable design, unique structure, light, prompt open/closure.
Small torque, convenient operation, flexible and labor saving.
Follw proper material to meet low, middle, and high service temperature and corrosive medium, and so on.
Applicable Standard
Design standard: GB/T12238-1989 ； JB/T8692-1998 ; CJ/T261-2007
Flange dimension: GB/T9115.1-2000
Face-to-face: GB/T12221-1989
Pressure test: GB/T13927-1992 ; JB/T908292-1999
Main Technical Parameter
Nominal Diameter | DN(mm) | 50~2000 | ||||
Nominal Pressure | PN(MPa) | 0.05 | 0.25 | 0.6 | ||
| Intensity Test | 0.075 | 2.4 | 3.75 | |||
| Seal test | ≤1.5% Leakage | |||||
Method | Manual / gear / pneumatic / electric | |||||
Applicable Medium | Air / water / steam / coal gas / oil product, etc. | |||||
Please consult customer service before placing an order( in order to confirm with size and material of the relevant product).
Material for main parts
| Parts Name | Material |
| Body | Cast steel / Stainless steel / Cr-Ni-Mo Ti steel and special material |
| Disc | Cast steel / Stainless steel / Cr-Ni-Mo Ti steel and special material |
| Seat | Same as body material |
| Stem | Carbon steel / 2Cr13 / Stainless steel / Cr-Ni-Mo-Ti steel |
| 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: Why use special flanges for butterfly valves?
- Because to use special flange butterfly valve butterfly flange diameter is just the butterfly inside diameter of DN coincides with a slot in the back, and this is the connection of the steel pipe is inserted into the slot, so as to ensure the sealing effect, but with a flange piece of ordinary cannot guarantee the effective sealing effect.Butterfly valve plate installed in the direction of the diameter of the pipe. Butterfly valve structure is simple, small size, light weight. Consists of only a few components. The utility model can be rapidly opened and closed only by rotating 90 DEG, the operation is simple, and the valve has good fluid control characteristics. When the butterfly valve is in the fully open position, the butterfly plate thickness is the only resistance when the medium passes through the valve body, so the pressure drop produced by the valve is very small, so the flow control characteristic is better.If the butterfly valve is used as a flow control, the main thing is to correctly select the size and type of valve. Butterfly valve structure and principle, especially suitable for making large-diameter valves. There are two kinds of butterfly valves commonly used: clip type butterfly valve and flanged butterfly valve. The clip type butterfly valve is a double headed bolt connecting the valve between the two pipe flanges. The flange type butterfly valve is provided with a flange on the valve, and a bolt is used to connect the flanges at the ends of the valve to the pipe flange.
- Q: What does "D341X-16Q" mean?What do D341-16Q letters and numbers mean for butterfly valves?
- D - valve type code: Butterfly valve;3 - valve drive mode code: worm gear;4 - valve connection form code: flange;1 - valve structure type code: vertical plate type;X - seat sealing surface or lining material code: rubber;16 - nominal pressure value: PN1.6MPa;Q - body material code: QT400 - 15.
- Q: What do D71, D371 and D341 represent in butterfly valves?
- D71 is a handle to clip butterfly valveD371 is a turbine to clip butterfly valveD341 is a manually operated double flanged butterfly valve
- Q: Gate valve and butterfly valve which is installed when there is a direction?
- Do not require frequent opening and closing, and keep gate fully open or fully closed. Not suitable for use as a regulator or throttling.
- Q: How warm is the PTFE butterfly valve?
- Ordinary PTFE clip butterfly valve normal temperature tolerance of about 120 degrees, instantly to about 150 degrees
- Q: Fire, the signal butterfly valve flange connection or welding?
- 1, do a good job with flange.2, flange (Flange), also known as flange, flange plate or edge. A flange is a part that is connected between the pipe and the pipe, used for the connection between the ends of the pipe. It is also used for the flange on the entrance and exit of the equipment. It is used for the connection between the two devices, such as the reducer flange. Flange connection or flange joint means that the flange, the shim and the bolt are mutually connected as a group of three detachable sealing structures. Pipe flanges are flanges used for piping in pipe installations. They are used on equipment and refer to the entrance and exit flanges of the equipment. The flange is lined with bolts to secure the two flanges. Gaskets for gaskets between flanges. Sub threaded flange connection (threaded connection), flange welding flange and flange clamp. Flanges are used in pairs. Low pressure pipes can be made of wire flanges and welded flanges with pressures of more than four kilograms. Add a gasket between the two flanges and secure with bolts. Different pressure flange thickness is different, they use the bolt is also different. Water pump and valve, and in the pipe connection, these equipment parts of the equipment also made corresponding flange shape, also known as flange connection. Any connecting parts that are bolted and closed in the vicinity of the two planes are generally referred to as flanges, such as the connections of the ventilation ducts, which can be called flanges". However, this connection is only part of a device, such as flanges and pumps connected, it is not good to call the water pump flange parts". Relatively small, such as valves, can be called flanges".3, also known as welding: welding, melt, is a kind of heating, high temperature or high pressure way of metal or other thermoplastic materials such as plastic manufacturing process and technology.
- Q: What do you mean by manual butterfly valve DN100 D341X-10?
- DN100 refers to the inside diameter of the butterfly valveD stands for butterfly valves3 represents the turbine drive4 represents the flange connectionThe 1 represents straight throughX is the representative of the Dengqen rubber seal10 represents the pressure of 1.0Mpa (10 kg)Butterfly valve (English: butterfly valve) refers to the closure of parts (valve or butterfly plate) for the disk, around the valve shaft to achieve rotation and closure of a valve, the main cut off on the pipe and throttling. Butterfly valve headstock is a disc shaped disc, in the valve body around its own axis of rotation, so as to achieve the purpose of opening or closing or regulation. Butterfly valve is fully open to fully closed is usually less than 90 degrees, butterfly and butterfly stroke itself has no self-locking capability, in order to position the disc to install the valve stem on the worm gear. Using worm gear reducer, not only can the butterfly plate have self-locking ability, so that the butterfly board stops at any position, but also can improve the operation performance of the valve.
- Q: What's the difference between butterfly valves and check valves?
- Butterfly valve is manual, only switch function.The check valve is an automatic valve, which prevents backflow of the pipe medium.
- Q: What does "D41X-16" mean?
- GB case, D is butterfly valve, 4 is flange connection, 1 refers to the midline structure, X is sealed form for three yuan, ethylene propylene rubber seal, and 16 is the pressure of 16 kg.
- Q: Buried extension butterfly valve is buried or need to repair the valve well, can build the valve well, the extension rod butterfly valve installed in the valve well, the extension rod to avoid covers, the top of the valve well out, so that the hand wheel in the ground operation.Atlas S143 is less than the inner diameter of DN150 valve wells only 1200mm, DN200-DN250D diameter of only 1400mm, 700mm valve covers, valve rod and a handwheel to lengthen through the valve cover, valve wells is built to cover the embedded pipe or tube? Is there a standard atlas?
- The establishment of a repair valve well, easy to repair, usually hydrogen long rod butterfly valve installed in the well. But if the quality of buying long stem butterfly valve, it can also be buried directly, not easy to bad
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Ventilation Butterfly Valve ；Butterfly Valve ；High quality valve
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 pc
- Supply Capability:
- 30000 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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