Iron Butterfly Valve DN50

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Product Description:

1.Technical Date:

Size: DN40-DN1200

Nominal Pressure: PN10/PN16

Operation Temperature: -10°C~150°C

Suitable Medium: Water,Sewage,Seawater,Gas,Food,Oils,etc.

2. Standard

Design Standard: GB/T 12238-2008

Structural Length: GB/T 12221-2005

Top Flange dimensions: ISO5211

Face to face dimensions: GB9112,DIN2501,BS4504,ISO2084,ANSI125

Type of connection: Wafer Type

3. Feature:

 This valve is mainly composed of body, butterfly plate, valve shaft, seat and transmission devices. Simple and compact structure, small portable, convenient for transport, install and dismantle. 90 degrees of opening and closing, switch quickly, operating is small, light energy; Sealing performance is good, service life is long, can achieve zero leakages. Flow curve tending to straight line, excellent regulation performance.

4. Sealability:

The valve for rubber seal, closing butterfly plate and seat sealing performance is good, two-way sealed good performance and the torque is small. the friction is very small between butterfly plate and the seat seal. The valve shaft drive the butterfly plate, butterfly plate do 90 degrees rotation. Butterfly plate flexible for opening and closing, no card acerbity, beating phenomenon, small torque.

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Q:When will Butterfly Valves be used?
Butterfly valve is the most common and most widely used in the field of the valve, cases of sewage treatment, water supply, iron and steel, building construction and heating fields needs a lot of valves, especially with the hard seal butterfly valve butterfly valve position and a lot of popularity, the field is used more widely.
Q:Buried extension butterfly valve is buried directly, or need to repair the valve well?
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
Q:The difference between the electric control valve and the electric butterfly valve, respectively, the application situation
Electric butterfly valve is a kind of electric control valve.There are many types of valve body, usually through the single seat, straight through two seat, angle, diaphragm, small flow, three pass, eccentric rotation, butterfly, sleeve type, spherical and so on 10. In the selection of control valve valve prior to the media, process conditions and parameters to control the process of careful analysis, to collect sufficient data to understand the system requirements on the control valve, according to the data collected to determine the type of valve to be used.
Q:The difference between butterfly valve and gate valve
Wedge gate valve spool angle is generally 3~6 degrees, when forced to shut down excessive or temperature changes of the valve core is easy to die. Therefore, high temperature and high pressure wedge gate valve, in the structure have taken certain measures to prevent spool stuck. The valve in the opening and closing valve and valve seat sealing surface contact and mutual friction is always so easy to wear sealing surface, especially in close off the valve, the valve before and after the great pressure, sealing surface wear is more serious.
Q:I want to what is better a metal valve or tissue valve replacement for someone who is in their 30's?
I've had a couple of patients tell me they could hear their metallic valves in the quiet of the night. It isn't something that would bother you all the time. The anticoagulant needed makes a lot of people choose the pig valve, but the latter will wear out and need replacement periodically. Lewis Grizzard, who died from complications of his fourth valve replacement, wrote a book They Tore Out My Heart and Stomped That Sucker Flat, that was half about his aortic valve and half about his love life, the author having had as many ex-wives as heart valves. It may be difficult to find a copy now, but it's a book you'd enjoy reading, and contemplating it (and him) might help you decide.
Q:Butterfly valve switch direction respectively?
First, if the butterfly valve has been installed on the pipe, you can first see the mark on the handwheel. Second, there is a switch indicator on the general worm gear.
Q:What's the material of the butterfly valve seat?
The seating material shall meet the following criteria:1) fluid compatibility, including expansion, hardness loss, permeability, and degradation;2) hardness;3) permanent deformation;4) the degree of recovery after load removal;5) pull in and compressive strength;6) deformation before fracture;7) modulus of elasticity.
Q:Ok, My zone-valve is dead. How do i find/fix it?
USA If you do not know where your valve is, you could not have tested it. How do you know it is not functioning? It might be that the electric signal required to operate the valve is not getting to the valve. Most zone valves can be opened and closed manually, if you want the heat constantly on or off. If you do not know where the valve is, or what to do with it, I strongly recommend you contact a licensed professional HVAC contractor.
Q:What are the advantages of butterfly valves?
Butterfly valve, also known as shutter valve, its advantages are:A. has a large circulation capacity and is about 1.2 times the same size as two seat valves;
Q:Big block, solid lifter, valve clearances?
Only way to be sure is to put clay on top of a piston and turn the engine over by hand and then measure the clearance on the indentation in the clay.

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