Wafer Type Building Structure Butterfly Valve

Following are the Main Features of Wafer type Building structure butterfly valve :-
1. Small in size, light in weight, easy installation and maintenance.
2. Simple and compact construction, quick 90 degree on-off operation.
3. Minimized operating torque, energy saving.
4. Flow curve tending to straight line, excellent regulation performance.
5. Long service life, standing the test of tens thousands opening/closing operations.
6. Bubbles-tight sealing with no leakage under the pressure test.
7. Wide selection of materials, applicable to various medium.
Performance:
Nominal pressure (MPa) 1.0 1.6
Nominal diameter(mm) 50-1000 50-1000
Test pressure Shell 1.5 2.4
(MPa) Seal 1.1 1.76
Applicable temperature 150
Applicable medium Fresh water, Sewage, Sea water, Air, Vapor, Food, Medicine, Oils, Acids,
Alkalis, etc.
Operating mode manual, worm gear, pneumatic, electric, etc.
Standard:
Design & Manufacture Flange Connection Face to Face Dimension Test & Inspection
MSS SP-67
API609
EN593 DIN PN10/16/25; ANSI B 16.1
BS4504; ISO PN10/16
JIS B 2212/2213
BS 10 table D; BS 10 table E API609
ISO5752 series 20
BS5155 API 598
Material List:
No. Part Name Material
1 Body Carbon Steel/Stainless Steel/Cast Iron/Ductile Iron/ Al-Bronze
2 Disc Al-Bronze/CF8M/Ductile iron/WCB
3 Seat EPDM/PEFE/Buna/NBR/Hypalon
4 Stem Carbon Steel/Stainless Steel314/Stainless Steel316
5 Bushing PTFE/Lubricating
6 O ring EPDM/PEFE/Buna/NBR/Hypalon
7 Pin SS316/SS416/SS304