Size & Dimension
NOTES (DIMENSIONS TABLE)*Due to molding process, orifice may vary.
**Maximum nominal dimension for a fully open valve with no spring.Consult factory for more information
Available Materials
- PTFE (TF)
Pressure Temperature Table
| Body Material | Line Size | Non-Shock Pressure-Temperature Rating |
|---|---|---|
| PTFE (TF) | 3/4"- 2" | 55 PSIG @ 100 °F |
| 2-1/2 " - 4" | 20 PSIG @ 100 °F |
Seat material and spring material selection may limit the recommended service temperature.
See seat ratings, spring ratings, and body material ratings for their respective recommended service temperatures.
Consult the factory for reduced P-T rating above 100 °F. Standard spring material is 316 Stainless Steel.
Flow Data
PRESSURE DROP PSI
| Size | Cv |
|---|---|
| 3/4 | 2.4 |
| 1 | 4.6 |
| 1-1/2 | 9.5 |
| 2 | 20.9 |
| 2-1/2 | 37.0 |
| 3 | 76.0 |
| 4 | 141 |
FOR WATER AT 72°F
WATER FLOWRATE - GPM
Note: All flow curves and Cv values presume the valves are fully open with 1/2 PSI cracking pressure springs. Consult the factory for more information.
Valve Weights
| SIZE | PTFE |
|---|---|
| 3/4 | 0.2 oz. |
| 1 | 0.6 oz. |
| 1-1/2 | 1.1 oz. |
| 2 | 1.8 oz. |
| 2-1/2 | 2.3 oz. |
| 3 | 5.1 oz. |
| 4 | 11.2 oz. |
Seat & Cracking Pressure Options
| Valve Style | Size Range | Body Materials Other Options | Allowable Seat Materials Other Options | Standard Cracking Pressures Other Options More Info. | Standard Spring Material More Info. |
|---|---|---|---|---|---|
| SIV | 3/4" - 2" | PTFE | AFLAS® Buna-N FDA AFLAS® FDA Buna-N EPDM/FDA EPDM FDA Viton® Kalrez® "Metal to Metal" Neoprene Viton® | 1/8 PSI 1/2 PSI 1.5 PSI 3.5 PSI | 316 SS |
| SIV | 2-1/2" - 4" | PTFE | AFLAS® Buna-N FDA AFLAS® FDA Buna-N EPDM/FDA EPDM FDA Viton® Kalrez® "Metal to Metal" Neoprene Viton® | 1/8 PSI 1/2 PSI 1.5 PSI | 316 SS |
