
Technical Data
| Category | 1/4″ | 1/2″ |
|---|---|---|
| Cracking Pressure Ranges |
3 to 50 psi (0.2 to 3.4 bar) 50 to 150 psi (3.4 to 10.3 bar) 150 to 350 psi (10.3 to 24.1 bar) 350 to 600 psi (24.1 to 41.3 bar) | |
| Working and Back Pressure at 70°F (20°C) | 3000 psig (206 bar) | |
| Temperature Rating |
VITON O-Ring: -10°F to 375°F (-23°C to 190°C) Buna O-Ring: -10°F to 250°F (-23°C to 121°C) | |
| Flow Coefficient (Cv) | 0.35 | 1.20 |
Cracking Pressure & Reseal Pressure at 70°F (20°C)

All valves are factory tested for cracking pressure and reseal performance.
Table of Dimensions

| Part No. | End Connections | A (mm) | h HEX mm (in.) |
|---|---|---|---|
| 2MM | 1/4 Male NPT | 41.1 | 14.3 (9/16) |
| 2PP | 1/4 Female NPT | 75.7 | 19.1 (3/4) |
| 4MM | 1/2 Male NPT | 65.0 | 22.2 (7/8) |
All dimensions are for reference only and are subject to change.
Materials

| No. | Component | Stainless Steel | Brass |
|---|---|---|---|
| 1 | Insert Lock Screw | 316SS / A276 | Brass |
| 2 | Insert | 316SS / A276 | Brass |
| 3 | O-Ring | VITON | Buna |
| 4 | Poppet | 316SS / A276 | Brass |
| 5 | Spring | SS304 | SS304 |
| 6 | Body | 316SS / A276 | Brass |
| 7 | Adjusting Screw | 316SS / A276 | Brass |
| 8 | Locking Screw | 316SS / A276 | Brass |
Ordering Information

