- SUITABLE FOR POWDER OR GRANULES
- ALUMINIUM OR STAINLESS STEEL CONSTRUCTION
- CHOICE OF DIAPHRAGM MATERIALS
- SIZES 100 – 300MM
- MANUAL OR PNEUMATIC OPERATION
The concept of the Iris Diaphragm Valve is very similar to that of the iris of a camera.
Materials of construction are Cast Aluminium, 304 or 316 Stainless Steel. Diaphragm materials are chosen to suit the application and include: nylon, polyurethane coated nylon, latex food quality rubber and silicone food quality rubber
A guide sleeve passing through the orifice of the valve can be fitted as an option. This avoids the product directly contacting the diaphragm, thereby enhancing the life of the diaphragm.
In addition to the two flanges, an intermediate flange is introduced in the middle of the tubular diaphragm. The “middle” or “intermediate” flange is rotated while the other two flanges remain stationary. Since the middle flange rotates through 180 degrees, there is double locking of the diaphragm. An advantage of this design is that the bottom flange is stationary, allowing the valve to be used inline.
This valve is also available with pneumatic operation fitted with a PU coated nylon diaphragm as standard.