Check Valves
Ozone Compatible Check Valves
| CVLP - Low Pressure Check Valve | CVHP - High Pressure Check Valve | CVSS - Stainless Steel Check Valve |
| Low pressure check valve for low pressure (less than 25 PSI) | High pressure check valve for high pressures (up to 200 PSI) | High pressure check valve for high pressures (up to 200 PSI) |
| Free floating diaphragm will seal with very small pressure differentials | Stainless steel spring and ball provide positive, tight seal | Stainless steel spring and ball provide positive, tight seal |
| Very low crack pressure < 0.25 PSI | Crack pressure of ~2 PSI - (crack pressure may vary between valves) | Standard valve uses 0.5 PSI crack pressure, other crack pressures are available upon request |
| Free floating diaphragm will not provide a positive seal every time, expect some water leakage through seal | Crack pressure of ~2 PSI - (crack pressure may vary between valves) | Open design offers very high flow, and very little flow restriction |
| Barbed fittings make this an easy check valve to install | Male NPT connections require threaded connections to this valve | Female NPT connections require threaded connections to this valve |
| Kynar construction and Viton seal will be ozone resistant up to ~5% ozone, also ozone by-products can deteriorate Viton seal | Kynar construction and Viton seal will be ozone resistant up to ~5% ozone, also ozone by-products can deteriorate Viton seal | Viton, or PTFE seal designs are available on stainless steel valves |
| PTFE seal will be most ozone resistant and longest lasting seal available. | ||
| Viton seal will be ozone resistant up to ~5% ozone, also ozone by-products can deteriorate Viton seal. | ||
| Viton is very pliable and will offer the most reliable seal. | ||
| PTFE is very rigid, small particulates will keep this material from offering a positive seal. |