The clamp butterfly valve is simple in
structure, small in size and light in weight, It consists of only a few
components. And it can be opened and closed quickly only by rotating 90
degrees. The operation is simple, and the valve has good fluid control
characteristics. When the butterfly valve is in full opening position,
the thickness of the butterfly plate is the only resistance when the
medium flows through the valve body. Therefore, the pressure drop
produced through the valve is very small, so it has a better flow
control characteristic. Butterfly valve has two kinds of seal: elastic
soft seal and metal seal. The elastic soft sealing valve can be set on
the valve body or attached to the butterfly plate.
Materials of main parts
|Name of parts||Body||Seat ring||Stem,Worm||Disc||Axis guide||Sealing|
|D371X-10||Gray cast iron||Duna-N rubber||2Cr13|
|Ductil cast iron||Aluminium bronze||Duna-N rubber|
|D371X-10Q||Ductile cast iron|
The main technical data
|Nominal pressure PN||Testing pressure|
|Working temperatureºC||Working temperatureºC||Applicable medium|
|Shell test pressure||Seal test pressure|
|10||1.5||1.1||1.0||≤135||Water, Stem, Petroleum, Acid,Alkah,etc|
The main size of apperance and weight
1. the double eccentric design makes the friction free transmission between the sealing surfaces extend the service life of the valve
2.Ingenious wedge design makes the valve have more and more close automatic sealing function, and there is compensatory and zero leakage between the sealing surfaces
3..Small volume, light weight, easy operation and easy installation
4. Simple and compact construction,quick 90 degrees on-off operation.
5. Miniminzed operating torque,energy,saving.
6. Flow curve tending to straight line. Excellent regulation performance.
7. Long service life.Standing the test of tens of thousands opening/closing operations.