Valve manufacturers who were specifying either filled PTFE or Nylon as their soft seat material were not only restricting the design of their valves, but in some instances wrongly interpreting “Nylon” – one of the main reasons being that there are so many different grades of Nylon.
There was a certain amount of confusion and ambiguity throughout the valve industry whereby the customer did not know what their valve seat was either made of or capable of.
Working closely with a major valve manufacturer, Devol introduced Devlon V grade as an alternative valve seat material in the early 1980s. Devol has been supplying V grade valve seats ever since to a worldwide customer base.
| Class | Test Pressure (psi) | Working Pressure (psi) |
|---|---|---|
| 150 | 425 | 275 |
| 300 | 1,100 | 720 |
| 600 | 2,175 | 1,440 |
| 900 | 3,250 | 2,160 |
| 1,500 | 5,400 | 3,600 |
| 2500 | 9,000 | 6,000 |
Advantages
