D71PT Manual Butterfly Valve
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D71PT Manual Butterfly Valve
The butterfly valve should be used for open, close and regulating medium flow in pipeline and container of petroleum, chemical, medicine, metallurgy, can also be speciallyused in a variety of corrosive medium.
Product introduction and characteristics
The butterfly valve should be used for open, close and regulating medium flow in pipeline and container of petroleum, chemical, medicine, metallurgy, can also be specially used in a variety of corrosive medium, The following features:
1. Corrosion resistant, high temperature resistant.
2. Flow characteristics tend to be straight, good regulation performance.
3. Select of different materials, suitable for corrosive medium
4. Simple and compact structure, compact and light, easy to transport, install and disassemble.
Output Dimensions
Application Specification
Designed As Standard: GB/T12238-2008;AWWAC504
Facetoface As Standrad: GB/T12221-2005-J1; API609
Flange As Standrad: GB/T17241.6;DIN2632\2633;BS4504JIS-B2220;ASME B16.5(CLASS150)
Test As Standrad：GB/T13927-2008;BSEN12266-1 12266-2
Product design features
1. Seat and body are split design for easy maintenance and replacement.
2. The valve body is designed to be open and the axial seal is safer.
3. It adopts an anti-exit structure for valve stem, spring +U type card structure are used in the
upper part of the stem, which can not only compensate for installation errors, but also prevent
the stem fromloosening.
4. Valve plate and seat seal are of ball design, more reliable sealing.
5. Design elastic mechanism at seat end to compensate sealing effect of seat and valve plate.
