Size & Dimension
| Nominal Pipe Size | Size Code | A | HEX SIZE B | C** | Orifice Diameter |
|---|---|---|---|---|---|
| 3/8 | C | 2.16 | 1 | 3/8 NPT | 0.348 |
| 1/2 | D | 2.71 | 1-1/4 | 1/2 NPT | 0.464 |
| 3/4 | F | 2.95 | 1-5/8 | 3/4 NPT | 0.593 |
| 1 | H | 3.64 | 2-1/4 | 1 NPT | 0.890 |
| 1-1/4 | I | 3.91 | 2-3/4 | 1-1/4 NPT | 1.135 |
| 1-1/2 | J | 4.36 | 3-1/4 | 1-1/2 NPT | 1.385 |
NOTES (DIMENSIONS TABLE)*May be larger and/or round.
**Consult factory for ISO 7 "Rp" threads.
Available Materials
- 316 Stainless Steel (SS) * Alloy C-276 (HC)
- Alloy 20 (A2) * Alloy 400 or MONEL® (MO)
- Carbon Steel (CS) * Titanium (TI)
- Alloy B (HB)
Pressure Temperature Table
| Body Material | Availability | Non-Shock Pressure-Temperature Rating |
|---|---|---|
| 316 Stainless Steel (SS) Carbon Steel (CS) Alloy 20 (A2) Alloy C-276 (HC) Alloy 400 or MONEL®(MO) Alloy B (HB) Titanium (TI) | Standard | 10,000 PSIG @ 100°F |
| Semi-Standard | ||
| Contact the factory for these or other materials |
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 |
|---|---|
| 3/8 | 1.9 |
| 1/2 | 3.5 |
| 3/4 | 7.2 |
| 1 | 14.6 |
| 1-1/4 | 28.8 |
| 1-1/2 | 31.9 |
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 | PART NUMBER | SS, CS & Alloys |
|---|---|---|
| 3/8 | U1C | 5.9 oz. |
| 1/2 | U1D | 11.8 oz. |
| 3/4 | U1F | 1.4 lb. |
| 1 | U1H | 3.5 lb. |
| 1-1/4 | U1I | 5.4 lb. |
| 1-1/2 | U1J | 8.1 lb. |
Valve weights are approximate.
