Technical Specifications
Below are the comprehensive technical parameters for the Gestra PA 46 intermittent blowdown valve under DIN/EN PN 40 pressure rating standards.
| Parameter | Official Specification Details |
|---|---|
| Manufacturer / Brand | Gestra AG (Germany) |
| Type / Model | PA 46 (Rapid-Action Intermittent Blowdown Valve - Manual Lever) |
| Nominal Size (DN) | DN 32 (1-1/4 Inch / 1¼") |
| Pressure Rating (PN) | PN 40 (Max. Operating Pressure up to 40 Bar) |
| Max. Service Limits | Max. 31 Bar at a saturation temperature of 238 °C |
| End Connection | Flanged (Complies with DIN/EN 1092-1 standards) |
| Body / Cover Material | Forged Steel 1.0460 (P250GH) / Cast Steel 1.0619 (GP240GH) |
| Operation System | Manual hand lever with spring-loaded automatic self-closing mechanism |
| Main Application | Boiler sludge and scale discharge (bottom boiler blowdown) in steam systems. |
Important Installation Notice:
The rapid-action Gestra PA 46 DN 32 valve operates effectively with an opening time of only 2 to 3 seconds per blowdown cycle to prevent excessive steam loss. Please verify your piping flange face-to-face dimensions comply with DIN/EN standards before system alignment and installation.
