Model A/20
![](https://archonind.com/wp-content/uploads/2019/03/model-a-20_400x400px.jpg)
Model A/20
Relief valve
In polyethylene, two-way (pressure and vacuum), maximum flow 400hl/h.
![](https://archonind.com/wp-content/uploads/2019/03/model-a-20_drawing.jpg)
Model
Material
Weight Kg
Gasket
A/20
polietil
0.15
G1 1/4"
A/21
polietil
0.15
G1 1/2"