This Valve Assembly is a Powermite 599 MT Series, ANSI Class 250, 2-W, NO, Modified Eq Pct, 2.5 Cv, FxF, 1/2″, Bronze Body, Includes MT Series 2 In Pneumatic Actuator with 8-13 psi SR, Used for control of hot or chilled water for convectors; Installation Guide
The Siemens 258-02055C 2WNO 8-13 LN SS OR FXF .5/2.5; This Valve Assembly is a Powermite 599 MT Series, ANSI Class 250, 2-W, NO, Modified Eq Pct, 2.5 Cv, FxF, 1/2″, Bronze Body, Includes MT Series 2 In Pneumatic Actuator with 8-13 psi SR, Used for control of hot or chilled water for convectors
| Assembly | Y |
| Assembly Valve | 599-02055C |
| Assembly Actuator | 599-01088 |
| Valve Size | 0.5 in |
| Valve Type | Globe |
| Valve Pattern | 2-Way |
| End Connection | NPT |
| Valve Flow Coefficient (Cv) | 2.5 |
| Mechanical Design (GPM) | N/A |
| Body Rating | ANSI 250 |
| Rated Close-off | 25 psi |
| Max Temp | 230 °F |
| Trim | Stainless Steel |
| NSR/SR Actuator | Spring Return |
| Actuator Type | Pneumatic |
| Fail Safe | Y |
| Fail-safe Position | Normally Open |
| Spring return function | N/A |
| Control Signal Type | 60psi-13psi |


