First, detailed materials of the product [ventilates butterfly's
valve ]:
Name of product: Ventilate butterfly's valve
Characteristic of the products: Ventilating butterfly's valve
adopts the same material as valve body to process into and seal
enclosing, its suitable temperature selects suitable materials with
the valve body but makes, nominal pressure0.6MPa, is generally
suitable for such pipelines as industry , metallurgy ,
environmental protection ,etc. and ventilate and regulate the using
of the flow of medium. Its main characteristic is: 1, Novel in
design , rational, the structure is unique , light, open and close
it rapidly. 2, it is small , easy to operate to hold the moment, it
is dexterous to save effort. 3,it adopt material that meet in order
to meeting low, in, medium temperature their and corrosivity medium
,etc. not different not high. The worm gear transmission flange
type of the handle ventilates butterfly's valve, the worm gear
transmission flange type of the worm ventilates butterfly's valve,
the transmission flange type of the worm gear ventilates
butterfly's valve.
Adopt the standard:
Design standard: GB/T12238-1989; JB/T8692-1998
The flange connects size: GB/T9115.1-2000
The length of structure: GB/T12221-1989
The pressure is tested: GB/T13927-1992; JB/T9092-1999
Second, main technical parameter:
Nominal and open directly | DN(mm) | 50~2000 |
Nominal pressure | PN(MPa) | 0.05 | 0.25 | 0.6 |
Test pressure
Ps(MPa) | The intensity testing | 0.075 | 0.375 | 0.9 |
Seal and test | ≤ is letting out amount 1.5% |
Suitable medium | Coal gas , including the dust and gas , flue gas ,etc.. |
Drive the form | Manual, worm worm gear transmission , angry transmission , telex
move . |
Third, material of the major part:
Part name | Material |
The valve has body | Such special materials as casting steel , stainless steel ,
chromium nickel molybdenum titanium steel , chromium molybdenum
titanium steel ,etc. |
Butterfly's board | Such special materials as casting steel , stainless steel ,
chromium nickel molybdenum titanium steel , chromium molybdenum
titanium steel ,etc. |
Seal and enclose | The same as valve body |
Valve stem | Carbon steel , 2Cr13 , stainless steel , chromium nickel molybdenum
titanium steel |
Packing | Fluoroplastics , soft graphite |
Fourth, ventilate butt
