Autotrol Magnum

Summary

Product identification

MAGNUM CONTROL VALVE

Features and Benefits

• Time-tested Duraflow flapper for frictionless sealing and extended service life.
• Fiber-reinforced polymer valve body: superior strength, durability, non-corrosive, and UV-resistant.
• Optical sensor for precise cycle positioning.
• Fully adjustable 3- or 5-cycle control for efficient and reliable water treatment.
• Continuous service flow rate of 76 GPM with a backwash flow rate of 89 GPM.
• Backwash capability supports softener tanks up to 36" and filters up to 36" in diameter.
• Designed for single or multiple tank systems.
• Super capacitor preserves time of day during power outages.
• Programming stored in memory and retained through power outages.
• Historical data available for valve performance.

Timer Options

• 764: Professional-level metered control with programmable cycle times and salt amount for multiple tank applications.
• 742: Professional-level time clock control with programmable cycle times and salt amount.

Configurations and Options

• Filter or softener control valves.
• Internal Autotrol turbine.
• Variable reserve for enhanced efficiency.
• Auxiliary switch kits.
• Versatile top or side mount.
• Restriction of Hazardous Substance Compliant.

Flow Rates (Valve Only)

• Service @ 15 psi (1.03 bar) drop: 76 gpm (17.3 m³/hr)
• Backwash @ 25 psi (1.72 bar) drop: 89 gpm (20.2 m³/hr)
• Service Cv: 19.5 (Kv: 17)
• Backwash Cv: 17.8 (Kv: 19.9)

Valve Connections

• Tank Thread: 4" 8 UN
• Inlet/Outlet Threads: 2" NPT or BSPT, female, CPVC
• Brine Line: 3/4" NPT
• Drain Line*: 1-1/2" NPT or BSPT, female, CPVC
• Riser Tube Diameter: 1-1/2"
• Riser Installation: Above top of tank 5/8" ± 1/8"
• Pilot Drain & Auxiliary Hydraulic Output: 1/4" tube fitting

Specifications/Ratings

• Valve Body: Thermoplastic
• O-rings: EPDM
• Injector: 7 sizes available (14, 16, 18, 21, 24, 30, 36)
• Working Pressure: 25 psi - 100 psi (1.72 bar - 6.9 bar)
• Water Temperature: 35-100°F (2-38°C); Ambient 120°F (49°C)

*Valve installed drain flow controls are available (5-40 gpm). External flow controls may be required for higher backwash flow rates.

Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror