Key features/benefits
This type of air valve is the new-generation design for the well-known “double chamber” air valve. The 3 functions of traditional double chamber design is conserved, combining thermo-plastic cylindrical shaped main float for air intake and air discharge fuctions with the stainless steel float for air -release function. This gives an advantage on long-term corrosion resistance and longer operatinal lifetime compared to the competitors’ designs in the market.
Functions:
1) Discharge of air in high volume in the pipe-line to atmosphere during pipe filling. ( Atmospheric Function)
2) Intake of air in high volume into the pipe line during pipe-line emptying. ( Atmospheric Function )
3) Discharge of low volumes of air preventing them to accumulate and form “air-pockets” during pipe-line operation. ( Pressurized Function )
| Technical Specifications | |||
| Nominal Diameter | DN50-DN300 | ||
| Nominal Pressure | PN10 – 16 – 25 , ANSI Class 150 | ||
| Flange Standard | EN 1092-2 , ANSI B16.5 | ||
| Working Temperature | -10°C … +50°C | ||
| Coating | Thermoplastic / Epoxy | ||
| Material Features | ||||
| PART NO | PART NAME | MATERIAL | OPTION | |
| 1 | BODY | EN GJS 400-15 | EN GJS 500-7 | |
| 2 | COVER | ST STEEL | STAINLESS STEEL | |
| 3 | FLOATER | HDPE300 | PP | |
| 4 | SHAFT | AISI304 | – | |
| 5 | STOP PLATE | AISI304 | – | |
| 6 | CONNECTION ELEMENTS | A2 | A4 | |
| 7 | FLOATER (BALL) | AISI316 | – | |
| 8 | FILTER | AISI304 | AISI 316 | |
| 9 | FILTER HOUSING | AISI304 | AISI 316 | |
| 10 | SEAL | NBR | EPDM | |
