HOME | VALVES & GAUGES | AUTOTROL VALVES | 255 SERIES
autotrol 255 series
| Flow Rates (valve olny) | |
| Service @15 psi (1.03 bar) drop | 15.5 gpm |
| Backwash @ 25psi (1.72) bar drop | 6.0 gpm |
| Service | Cv = 3.99 (Kv = 3.4) |
| Backwash | Cv = 1.20 (Kv = 1.0) |
| Regeneration Operation | |
| Controller Configuration | 700 series electronic controller |
| Regeneration Sequence | 7-cycle high-efficiency regeneration sequence |
| Cycle Times - Electronically configured by computer | Backwash, draw, slow rinse, fast rinse, backwash #2, fast rinse #2, refill |
| Valve Connections / Dimensions | |
| Tank Thread | 2-1/2 inches - 8 male |
| Inlet / Outlet Manifold (brass or Noryl) | 1 inch NPT or 1 inch BSPT, female |
| 3/4 inch NPT or 3/4 inch BSPT, female | |
| 3/4 inch NPT or BSPT, male, Noryl | |
| 1/2 inch NPT or BSPT, male, Noryl | |
| Drain line | 1/2 inch (manifold dependent) |
| Brine line | 1/4 inch or 3/8 inch NPT male, air check built into valve |
| Distributer tube diameter | 1050 inches (27mm) or 13/16 inch (20.6mm) |
| Distributer tube length | 1 1/8 inches (29mm) above top of tank |
| Design Specifications / Ratings | |
| Valve body | Glass filled Noryl - NSF listed material |
| Rubber compounds | Compounded for cold water - NSF listed materials |
| Valve materials certification | NSF/ANSI 44 rated component for material safety |
| Weight (valve with control) | 4 lbs (1.8kg) |
| Recommended operating pressure | 20-120 psi (1.38 - 8.27 bar) |
| Canada | 20-100 psi (1.38 - 6.89 bar) |
| Hydrostatic test pressure | 300 psi (20.69 bar) |
| Water temperature | 35º - 100 ºF (2º - 38ºC) |
| Ambiant temperature | 35º - 120 ºF (2º - 48.9ºC) |
