Flexible Butterfly Valve ; Butterfly 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:
Medium Pressure
Temperature of Media:
Normal Temperature
Power:
Manual,Pneumatic,Turbine,Electrical
Media:
Air / water / steam / coal gas / oil product, etc.
OD（Outer Diameter: inch）:
150
Size(inch):
455
Pressure（LB）:
1.6
Net Weight (kg):
1000
The flexible butterfly valve is applicable to foodstuff, pharmacy, chemical industry, Prtroleum, electrical industry, textile, paper making, drain and air pipelines to control and stop the flow, with the function of compensating expansion and condensation inder the condition of temperature less than 80°C, nomral pressure less than 1.6MPa.
Main features:
Novel and resanalble design, unique structure, lightweight, convenient operation, quick open/close.
Flexible butterflyy valve is convenient to install, change and repair the valve, basides of adjusting and stop funtion and expansion and condensation funtion since temperature difference from compensation pipelines.
It is adjusttable and changeable for seal parts an reliable sealing function.
Applicable Standard
Design standard: GB/T12238-1989 ; CT/T-261-2007
Flanfe dimension: GB/T9113.1-2000 ；GB/T9113.2-2000 ; GB/T9115.1-2000 ; GB/T9115.2-2000
Pressure test: GB/T13927-1992 ; JB/T9092-1999
Main Techincal Parameter
Nominal Diameter | DN(mm) | 50~2000 | ||||
Nominal Pressure | PN(MPa) | 0.6 | 1.0 | 1.6 | ||
| Intensity Test | 0.9 | 1.5 | 2.4 | |||
| Seal test | 0.66 | 1.1 | 1.76 | |||
| Air Test | 0.6 | 0.6 | 0.6 | |||
Applicable Temperature | ＜80oC | |||||
| Method | Maual / gear / pneumatic | |||||
Applicable Medium | Air / Water / Steam / Oil Product / Coal gas, etc | |||||
Material for main parts
| Parts Name | Material |
| Body | Castiron / cast steel / Stainless steel / Cr-Mo steel / Alloy steel |
| Disc | Cast steel / Alloy steel / Stainless steel / Cr-Mo steel |
| Seats | Stainless steel / polyactone / PTFE |
| Stem | 2Cr13 / Stainless steel / Cr-Mo steel |
| Bearing | Cast iron / Cast steel / stainless steel / Cr-Mo steel |
| Packing | Flexible graphite |
Please consult customer service before placing an order( in order to confirm with size and material of the relevant product).
- Q: Butterfly valve use
- 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. Industrial butterfly valve features, capable of high temperature, applicable pressure range is higher, the valve nominal diameter is large, the valve made of carbon steel, the valve plate sealing ring using metal rings instead of rubber rings. Large high temperature butterfly valve welded by steel plate, mainly used for high temperature smoke duct and gas pipe
- Q: What's the difference between the three eccentric butterfly valve and the two eccentric butterfly valve?
- Single eccentric butterfly valve: extrusion problems, address concentric butterfly valve and valve seat of the resulting in a single eccentric butterfly valve, the structural characteristics of the stem axis deviated from the disc center, so that the butterfly is no longer a rotary bottom plate, axial dispersion, reduce the excessive squeezing and the lower end of the seat of the butterfly board. Double eccentric butterfly valve: in the single eccentric butterfly valve on the basis of further improvement of forming, is the most widely used double eccentric butterfly valve.
- Q: Butterfly valve common faults and treatment methods?
- Three, summary:Only familiar with every detail of circulating water pump outlet valve and butterfly valve equipment, timely and thorough maintenance and strict debugging, to ensure the safety and reliability of equipment operation, to ensure the healthy and orderly operation of equipment.
- Q: How can I get the fire signal butterfly valve?
- At the input end of the input module, some resistors or terminals are added to the product
- Q: What is the principle of butterfly valve and check valve? Any difference?
- Direct water butterfly valve, check valve is to water can not flow valve
- Q: Can the inlet and outlet of butterfly valve be reversed? Why? What will happen if the reverse gear is installed?
- Hard seal butterfly valve in any case, the reverse loading will cause tight seal.
- Q: Butterfly valve in use when should pay attention to what problems?
- In the process of using power pipe pneumatic butterfly valve, the need to pay attention to these problems, the first is to conduct a comprehensive inspection in the use of butterfly valve, check butterfly valve is in good condition, all parts are connected in place, the valve is loose and so on, wait to ensure that everything is normal, it can make an official use.
- Q: What is the difference between the installation and function of a butterfly valve and butterfly valve?
- The principle of the valve gate valve is open and close cases, RAM direction of motion perpendicular to the direction of the fluid, valve can only be fully open and fully closed, can not be adjusted and the throttle. Gate has two sealing surface, the most commonly used mode gate valve of the two sealing surface forming wedge, wedge angle with valve parameters vary, usually 50, medium temperature is not high when 2 degrees 52. Wedge gate valve can be made into a whole, called the rigid gate; can also be made to produce micro deformation of ram, in order to improve its process of deviation, make up the sealing surface angle in the process, the gate is called the flexible gate. Valve closed, the sealing surface can only rely on medium pressure to seal, that is to rely on medium pressure to the gate sealing surface pressure to the other side of the seat to ensure the sealing surface seal, which is self sealing. Most of the valve is forced seal, that is, when the valve closes, to rely on external force to force the gate to the seat, in order to ensure the sealing surface sealing. Gate valve with the stem along with a straight line of motion, called the lift rod gate valve is also known as the bar gate valve. Usually there is a trapezoidal thread on the lifter. The rotating motion is changed into a straight line through the nut at the top of the valve and the guide groove on the valve body. That is to say, the operating torque is changed into the operating thrust. When opening the valve, when the gate lift height is equal to 1:1 times of the valve path, the passage of the fluid is completely unblocked, but at run time, this position is unable to monitor. In actual use, the top of the stem is used as a sign, i.e., the open position, as its fully open position.Temperature changes appear to consider locking phenomenon, usually open to the vertex position, and then rewind 1/2 1 circle, as a fully open valve position.
- Q: e.g. a patient with a prosthetic aortic valve and a patient with a prosthetic mitral valve. Also, can you get stenosis of mechanical valves or just tissue grafts?Thanks!
- mechanical okorder /
- Q: butterfly valves d7a1x5
- D71x-1.6? Or D371X-1.6, do you need butterfly valves for production or butterfly valves? The question perplexed us all.
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Flexible Butterfly Valve ; Butterfly 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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