ProtectoRiSE
Surge relief valve
The ProtectoRiSE is a highly recommended system component that is fitted at the top of the riser to prevent airlocks and sudden pressure changes due to power surges and other causes.
This triple-function, double-orifice air valve efficiently releases air to prevent pressure build-up and allows the ingress of air to prevent vacuum in the pipework. The ProtectoRiSE also provides a controlled bleed of air to maintain system stability.
Product specification
STANDARD TECHNICAL FEATURES
– Patented small orifice configuration
– Lightweight, compact single-chamber design
– Directly acting solid cylindrical float
– Excellent flow capacity
– WRAS approved
– PN16 rated
– Drain valve
– Corrosion-resistant construction
– Tapped cowl
– Surge alleviation mechanism
– Insect mesh
Options
– Isolating valve
– PN25 or PN40 rating
Performance
| Standard | BS EN 17-4:2000 |
| Connection size | 1” BSP |
| Maximum working pressure | 16 bar (25 or 40 bar available on request) |
| Minimum working pressure | 0.3 bar |
| Hydrostatic pressure tests | Seal: 1.1 × PN
Body: 1.5 × PN |
| Temperature range | Up to a maximum of 60°C |
| Coating | Fusion-bonded epoxy |
*If higher flow rate is required, as many units as necessary can be connected in parallel.
Performance
| Body | Ductile iron |
| Size | 113 mm (W) x 205 mm (H) |
| Drain valve | Nickel-plated brass |
| Diffuser plate | Stainless steel |
| Lower float | Polypropylene |
| Small orifice seal | Stainless steel/EPDM |
| Upper float | Polypropylene |
| Large orifice seal | EPDM |
| O-ring | EPDM |
| Seat holder | Stainless steel |
| Cowl | Ductile iron |
| Fasteners | Stainless steel |
