VR 2 - 2 "non-return valve
Delivery Options
| Carrier | Description | Estimated Delivery | |
|---|---|---|---|
 | Mail Boxes - 2 giorni | This courier delivers within 48 hours from the moment we entrust the products to him. | Monday 1 December - Tuesday 2 December |
 | Poste Italiane - 2 giorni Italia | This courier delivers within 24/48 hours from the moment we entrust them with the products. | Monday 1 December - Tuesday 2 December |
 | DHL - 2 giorni Italia | This courier delivers within 24/48 hours from the moment we entrust the products to him. | Monday 1 December - Tuesday 2 December |
 | Poste Italiane - 3 giorni punto di ritiro | This courier delivers within 24/72 hours from the moment we entrust them with the products. | Monday 1 December |
 | Ritiro in negozio | Choose where to collect your order within 24/48 hours. | Monday 1 December |
Carrier: Mail Boxes - 2 giorni
Description: This courier delivers within 48 hours from the moment we entrust the products to him.
Estimated delivery:
Monday 1 December - Tuesday 2 December
Carrier: Poste Italiane - 2 giorni Italia
Description: This courier delivers within 24/48 hours from the moment we entrust them with the products.
Estimated delivery:
Monday 1 December - Tuesday 2 December
Carrier: DHL - 2 giorni Italia
Description: This courier delivers within 24/48 hours from the moment we entrust the products to him.
Estimated delivery:
Monday 1 December - Tuesday 2 December
Carrier: Poste Italiane - 3 giorni punto di ritiro
Description: This courier delivers within 24/72 hours from the moment we entrust them with the products.
Estimated delivery:
Monday 1 December
Carrier: Ritiro in negozio
Description: Choose where to collect your order within 24/48 hours.
Estimated delivery:
Monday 1 December
The non-return valve is a one-way operation device, ie it allows to avoid the return of the pressurized fluid.
It is naturally used in sanitary water systems, raised water systems, heating systems, thermal power plants, heat generators (wall-mounted boilers, wood-fired boilers, heat pumps), solar systems, industrial and agricultural water systems in general.
The internal hydraulic seal is carried out by means of the forces exerted by a spring and by the pressure of the liquid on a gasket which carries out the seal even at minimum back pressures. In addition to this, the force of the spring allows the valve to have universal characteristics as regards the installation position.
