HOME | VALVES & GAUGES | AUTOTROL VALVES | 278 SERIES
autotrol 278 series
| Flow Rates (valve olny) | |
| Service @15 psi (1.03 bar) drop | 5.7 m3/h |
| Backwash @ 25psi (1.72) bar drop | 4.5 m3/h |
| Service | Cv = 6.50 (Kv = 5.6) |
| Backwash | Cv = 4.00 (Kv = 3.5) |
| Regeneration Operation | |
| Controller Configuration | 700 series electronic controller |
| Regeneration Configuration | 5-cycle regeneration sequence |
| Softener regeneration sequence (278 series) | Backwash, draw, slow rinse, fast rinse, refill, service (times programmable by installer) |
| Valve Connections / Dimensions | |
| Tank Thread | 2-1/2 inches - 8 male |
| Inlet / Outlet | 1 3/4 inches - 12 UNC-2A male |
| Drain line | 3/4 inch NPT male |
| Brine line | 3/8 inch NPT male |
| Distributer tube diameter | 1050 inches (27mm) |
| Distributer tube length | 1 1/2 inches 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) | 5.34 lbs (2.42kg) |
| 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) |
