DEMA’s high pressure valves are designed for pressures from 10 psi up to 1200 psi, are available for 3/8-1” pipes, have orifices from 11/32-15/16” and are intended for use with water only. They operate the same as a pilot operated valve except the pilot port is in a separate chamber from the piston. This allows the plunger to operate closer to the top plug with more force and consequently higher opening pressure.
| Model No. | Pressure Differential | Body Material | Pipe Size N.P.T | CV Flow Factor # | GPM @ 60 psi (cv # x √ psi) | |
|---|---|---|---|---|---|---|
| min/psi | max/psi | |||||
| 453P* | 10 | 1200 | Brass | 3/8″ | 1.8 | 13.95 |
| 453S** | 10 | 1200 | Brass | 3/8″ | 1.80 | 13.94 |
| 454P* | 10 | 1200 | Brass | 1/2″ | 3.70 | 28.66 |
| 458P* | 10 | 1200 | Brass | 1″ | 11.10 | 85.98 |
| 458PS** | 10 | 1200 | Brass | 1″ | 11.10 | 85.98 |
* – Stainless Steel Piston
** – Stainless Steel Piston and Stainless Steel Sleeve
* Shown above are the most common configurations. Many additional configurations are readily available, contact us at [email protected] or speak with your DEMA sales representative for more information.
Coil Options