Safety overflow valve
AY42H-160, AY42H-250, AY42H-400, AY42H-600
TA802Y-160, TA802Y-250, TA802Y-400, TA802Y-600
AY42H、TA802Y type safety overflow valves are to be applied to pipelines in high-pressure pump stations to provide over pressure protection.
|
Type
|
Nominal pressurePN(MPa) | Opening pressure(MPa) | Working temperature(℃) | Suitable medium |
| AY42H-160TA802Y-160 | 16 | 6.3~16.0 | 200 | Water, Oil etc. |
| AY42H-250TA802Y-250 | 25.0 | 10.0~25.0 | ||
| AY42H-400TA802Y-400
TA802Y-600 |
40.0-60.0 | 20.0~60.0 |
| No. | Name of part | Materials |
| 1 | Body | Carbon steel |
| 2 | Seat | Stainless steel |
| 3 | Disc | Stainless steel |
| 4 | Bonnet | Welding |
| 5 | Spring | 50CrVA |
| Type | Nominal diameter
DN(mm) |
Dimensions(mm) | ||||
| Rc | ZG | L | L1 | ≈H | ||
| TA802Y-600 | 15 | 1/2" | 1/2" | 52 | 90 | 250 |
| 25 | 1" | 1" | 52 | 113 | 275 | |
| 40 | 1 1/2" | 1 1/2" | 52 | 157 | 336 | |
| Type | Nominal diameterDN(mm) | Dimensions(mm) | |||||||||
| D | D1 | K | M | Z-Φd | b | L | L1 | RC | ≈H | ||
| AY42H-160AY42H-250
AY42H-400 |
15 | 135 | 95 | 25 | M48*2 | 4-22 | 25 | 65 | 140 | 1" | 329 |
| 20 | 165 | 115 | 30 | M52*2 | 6-26 | 28 | 80 | 150 | 1 1/2" | 447 | |
| 25 | 200 | 145 | 38 | M80*3 | 6-29 | 40 | 90 | 180 | 2" | 485 | |
| 32 | 225 | 170 | 42 | M100*3 | 6-33 | 50 | 100 | 200 | 2 1/2" | 570 | |
