TruDesign Non-Return Valve
£9.95 - £22.95
TruDesign Non-Return Valves (Check Valves) are used in-line to prevent water backflow or siphoning and are available in 6 sizes (in-line hose connector).
Features:
Manufactured from a composite UV stabilized, glass-reinforced Nylon 6
High strength, tough and lightweight. Can be used in direct sunlight.
High impact and tensile strength
“Water hammer safe” and insensitive to pressure shocks in the pipeline
Stainless steel spring
No corrosion issues or risk of internal valve staying open
Low ‘cracking’ (opening) pressure
Minimal pressure required to open the valve with minimal restriction on flow-rates
In line fitting
Minimal installation room needed
Printed white arrow (opposite logo side)
Quick and easy identification of water flow direction
Specifications:
| Size | 3/4″ (19mm) | 1″ (25mm) | 1 1/8″ (28mm) | 1 1/4″ (32mm) | 1 1/2″ (38mm) | 2″ (50mm) |
| Weight | 21g | 34g | 46g | 50g | 67g | 119g |
| Temp. Service | 65°C | 65°C | 65°C | 65°C | 65°C | 65°C |
| Temp Max | 93°C | 93°C | 93°C | 93°C | 93°C | 93°C |
| Pressure Service | 0 – 150 psi | 0 – 150 psi | 0 – 150 psi | 0 – 150 psi | 0 – 150 psi | 0 – 150 psi |
| Pressure Max | 230 psi | 230 psi | 230 psi | 230 psi | 230 psi | 230 psi |
| Cracking Pressure | ~ 0.41 psi | ~ 0.29 psi | ~ 0.29 psi | ~ 0.26 psi | ~ 0.23 psi | ~ 0.22 psi |
| Recommended for flow-rates between: | 15 – 42 Litre/min (4 – 11 gpm) | 25 – 79 Litre/min (6.5–21 gpm) | 25 – 79 Litre/min (6.5 – 21 gpm) | 32 – 117 Litre/min (8.5 – 31 gpm) | 61 – 193 Litre/min (16 – 51 gpm) | 87 – 322 Litre/min (23 – 85 gpm) |
| Pressure loss at max flow-rate: | 3.8 psi | 3.8 psi | 3.8 psi | 2.8 psi | 2.3 psi | 2.9 psi |
Installation:
Ensure the Non-Return Valve (Check Valve) is installed with the water flowing in the same direction as the
white arrow.
Use 2 hose clamps on each end (4 total), ensuring not to over-tighten.
It is recommended for dirty water situations that the valve be cleaned once per annum to dislodge debris.