Lug Type Butterfly Valve Without Pin Ductile Iron DN160

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Tianjin
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TT OR LC
Min Order Qty:
50 set
Supply Capability:
20000 set/month

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Product Description:

Centerline structure,pinless double half shaft design.
Disc has two-way bearing, no installation direction requirements.
Non-backed replaceable seat with good performance and a longer working life.
Square and short neck for lable use and cost saving.
Easy installation, no need flange gasket.

 

SizeDN50mm-DN600mm
Design standardAPI609/EN593
End flangeDINPN10/PN16, BS4504PN10/PN16, ANSI class125#/class150#
Face to faceAPI609/EN558-1
Top flangeISO5211
BodyDuctile iron/Cast iron
DiscDuctile iron/CF8/CF8M/C95400/C95500
StemSS420
SeatEPDM/NBR/Viton/PTFE
ActuatorBare shaft/Lever/Gearbox and handwheel
CoatingEpoxy/Nylon/PTFE
PinWith out pin
Suitable mediumWater/Seawater/Sewage/Air/Foodstuff/Oil

 

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Q:Check valve; flexible joint `; installation order of electric butterfly valve
It is better to make an elastic hanger.In order to prevent the generation of water hammer when the pump stops the damage to the rubber head, should be immediately set rubber head pump outlet, the gate valve and the check valve is not a very convincing reason to decide the order, custom order rubber head, check valve, electric butterfly valve.
Q:What's the difference between turbine butterfly valve and manual butterfly valve?
Butterfly (Manual butterfly) butterfly plate installed in the direction of the diameter of the pipe. In the butterfly valve body cylindrical channel, the disc shaped disc rotates around the axis. The angle of rotation is between 0 and -90 degrees. When rotating to 90 degrees, the valve is fully open.Butterfly valve structure is simple, small size, light weight, only by a few parts. 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. Butterfly valve has an elastic seal and metal seal, two types of seals. Resilient sealing valve. The sealing ring can be mounted on the valve body or attached to the periphery of the disc.
Q:The difference between gate valve and butterfly valve, as well as cut-off valve, what are their applicable conditions? Advantages and disadvantages?
The gate valve is one of the simplest valves. Generally manual, most of the electric valve failure, as a manual. Butterfly valve is more, I saw the pneumatic butterfly valve, that is, with gas control closed, general and solenoid valve matching.
Q:Butterfly valve flow direction is single or two-way?
The arrow on the butterfly valve is the medium direction of circulation, generally double eccentric, and the three eccentric butterfly valve has the arrow in this direction.The butterfly valve, the valve direction and fluid flow direction should be consistent, we use the butterfly valve is in accordance with the arrow direction and flow direction of the installation.If the arrow is marked on the valve body, it must be installed in its direction. If it is marked on the handle, it means open. Depending on the internal structure, it is possible to have the installation direction required.
Q:What's the use of fire butterfly valve?
You should ask the signal butterfly valve, butterfly valve in the fire signal system which is a monitoring alarm signal, its purpose is to ensure that the valve has been opened in the daily state, to prevent misuse operation was closed, thus affecting when accidental fire extinguishing. Therefore, it is necessary to set up the signal valve!
Q:Import electric butterfly valve which brand is more reliable?
Recommend Sichuan Ding Heng petroleum machinery company sales agent SPM butterfly valve and FMC butterfly valve, we are partners for many years, have been working together are very happy.
Q:Butterfly valve D71X-10 and butterfly D371X-10 what is the difference?
One more 3 in D71X-10 stands for adding a worm gear to the valve. What are the same, the difference is driven by the handle into the drive, gear drive, worm gear drive for large caliber butterfly valve a little less, because the valve torque is big, big, hard to handle and can rotate, and if the worm, you can turn a few laps handwheel. If there are other questions, we can continue to ask questions, the city butterfly valve manufacturers
Q:Transformer butterfly valve and pressure relief valve difference
The oil immersed transformer pressure release valve is a safety device installed in the transformer, when the internal pressure is less than the limit value of the transformer such as 35kPa, which is in closed state, when the transformer internal fault occurs, a large number of transformer oil by pyrolysis, produce large amounts of gas, the internal pressure of the oil tank increased dramatically when the opening pressure exceeds the pressure release valve when the pressure relief valve opens, the internal oil and gas overflow, to release the pressure, avoid the pressure on the inside of the lead tank cracking or permanent deformation, when the fault of transformer internal end, internal pressure tank to reduce pressure release valve closing pressure, it will automatically shut down to prevent outside air enter the inside of the tank or water.
Q:Big block, solid lifter, valve clearances?
Well, generally it's going to be .030 intake and exhaust (hot). Adjust to those clearances cold then recheck at operating temp. But it would really help to know year, make, cu. in., which aftermarket heads, to be absolutely sure. On some engines it is .024 intake / .030 exhaust and so on, depends on the lifters and valve train geometry.. What brand of lifters and cam profile? Usually they will specify valve lash and adjusting procedures. Edit: Wow, kinda' tight valve lash, krazybob, ( might be a lttle tough on the old cam lobes), and then there is your timing numbers / advice with absolutely no details to base it on ( H.E.I.?..which brand? / mechanical advance curve?, and vacuum advance numbers?, cam timing, brand of lifters, cam specs, rocker arm ratio)...Look, S-51D, the best idea is to Do- It- Right using the correct adjustment specs. The data is out there, once the configuration is identified.
Q:What does butterfly valve do?
5, connections are flanged, wafer connections, welded connections and lugs on the clip connection.  Drive in the form of manual, worm gear, electric, pneumatic, hydraulic, electro-hydraulic linkage actuator, can realize remote control and automation.Advantages of butterfly valves1, opening and closing convenient, fast and labor-saving, fluid resistance is small, you can often operate.  2, simple structure, small volume, light weight.  3, to transport slurry, accumulation of fluid in the pipe outlet at least.  4, under low pressure, can achieve a good seal.  5, good regulating performance.Disadvantages of butterfly valve1, use pressure and working temperature range is small.  2, poor sealing.  Butterfly structure can be divided according to the bias plate, vertical plate, inclined plate and lever type. According to the form of sealing can be divided into soft sealing type and hard sealing type of two. The soft sealing type usually adopts rubber ring seal, and the hard sealing type usually adopts metal ring seal.  By connection type can be divided into flange and clamp connections; press can be divided into manual transmission, gear transmission, pneumatic, hydraulic and electric types.

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