Ozone Compatible Stainless Steel Check Valves
Ozone Resistant Check Valves
Ozone Compatible stainless steel check valves ensure that liquid does not flow in an undesired direction. These are the best check valves money can buy.
Features
- ozone resistant 316L stainless steel body
- low crack pressure
- many NPT sizes available
- tight shut-off with liquid media
- SS spring to ensure tight seal
| Product ID: | Stainless Steel Check Valves | |
| In-stock: | yes |
Specifications
CVSS Fittings | |
Wetted Materials | Viton Seal, 316L SS Spring & Body |
Maximum pressure | 200 PSI @ 180-deg F |
Crack Pressure | 0.5 PSI (0.034 bar) |
Other crack pressures are available, call for details |
Check Valves with Viton Seat
| Model # | Connections (FNPT) | Crack Pressure | Length (In.) | Price | |
|---|---|---|---|---|---|
| CVSS-4 | 1/4-in | 0.5 PSI | 2.06 | $59.00 | |
| CVSS-6 | 3/8-in | 0.5 PSI | 2.12 | $69.00 | |
| CVSS-8 | 1/2-in | 0.5 PSI | 2.31 | $79.00 | |
| CVSS-12 | 3/4-in | 0.5 PSI | 2.87 | $99.00 | |
| CVSS-16 | 1-in | 0.5 PSI | 3.50 | $129.00 |
Check Valves with PTFE Seat
| Model # | Connections (FNPT) | Crack Pressure | Length (In.) | Price | |
|---|---|---|---|---|---|
| CVST-4 | 1/4-in | 0.5 PSI | 2.31 | $59.00 | |
| CVST-6 | 3/8-in | 0.5 PSI | 2.31 | $69.00 | |
| CVST-8 | 1/2-in | 0.5 PSI | 2.31 | $79.00 | |
| CVST-12 | 3/4-in | 0.5 PSI | 2.87 | $99.00 | |
| CVST-16 | 1-in | 0.5 PSI | 3.50 | $129.00 |
Viton Seal or PTFE Seal: Which is right for you?
Elastomer Durability
- PTFE seat will be most ozone resistant and longest lasting seal available.
- Viton seat will be ozone resistant up to ~5% ozone, also ozone by-products can deteriorate Viton seat.
Sealing Capabilities
- 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.





