Lug type butterfly valve without pin
SIZE:DN50-DN300
End Flange:DIN,BS,UNI,ISO,ANSI,AS,JIS
Face to Face:API609,BS5155,DIN3202,ISO5752
Top Flange:ISO 5211
Normal Pressure:PN1.0/1.6Mpa(150/200PSI)
Body:Cast Iron/Ductile Iron/WCB/ALB/CF8/CF8M
Disc:Ductile Iron/ALB/CF8M/CF8/Hastelloy Alloy/Monel
Stem:SS416/304/316/431
Seat:Hypalon/EPDM/Neoprene/NBR/Viton/Silicon/Heat-Resistant EPDM/White NBR/PTFE
Suitable Temperature:-45C to 150ºC
Suitable media include water, sewage, sea water, air, foodstuff and oil.
They are suitable for handles, gear operators, electric and pneumatic control actuators
Features:
1. Structure simple compact, the weight is light, 90' revolves, the switch is rapid
2. Designs reasonably, the assembling and dismantling is easy, to be advantageous
For the service
3. Uses the eccentric structure, reduces the seal packing collar the friction, lengthens
The valve service life
4. Completely seals, divulges for zeroMaterials:
Â
| NO | PART | MATERIAL |
| 1 | BODY | CAST IRON,DUCTILE IRON,CARBON STEEL,STAINLESS STEEL |
| 2 | SEAT | NBR,EPDM,VITON,NEOPRENE,HYPALON,SILICON |
| 3 | SHAFT | STAINLESS STEEL416,316,304 |
| 4 | DISC | DUCTILE IRON+NI,CF8,CF8M,BRONZE |
| 5 | PIN | STAINLESS STEEL |
| 6 | BUSHING | PTFE,BRONZE |
| 7 | O RING | NBR,EPDM |
Die casting is a Aluminium or Zinc metal casting process that is characterized by forcing nolten metal under high pressure into a die mold cavity. The mold cavity is created using two hardened tool steel dies which have been machined into shape and work similarly to an injection mould during the process. Most die castings are made from non-ferrous metals, specifically zinc, copper, aluminium, magnesium, lead, pewter, and tin-based alloys. Depending on the type of metal being cast, a hot- or cold-chamber machine is used.
The casting equipment and the metal dies represent large capital costs and this tends to limit the process to high-volume production. Manufacture of parts using die casting is relatively simple, involving only four main steps, which keeps the incremental cost per item low. It is especially suited for a large quantity of small- to medium-sized castings, which is why die casting produces more castings than any other casting process. Die castings are characterized by a very good surface finish (by casting standards) and dimensional consistency.
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