Description Flow Switch, TMT, GP General Pump’s TMT flow switches are controlled by Tri-Magnet Technology, eliminating the need for a reed switch. GP TMT switches come two formats – GP100975 and GP100879 with Pilot. See below. GP100975 Specifications: • Can be mounted in any position • GPM: 12.0 • Minimum Flow Required for Activation: 1.25 GPM • Max PSI: 5000 • Minimal pressure drop up to 12 GPM flow • Operating Temperature Range: 40 – 180 °F • Electrical Lead Length: 48″ – 18AWG • Switch Ratings Max Switching Voltage: 250 VAC • Max Switching Current: 5 AMPS • Resistance with Leads: 30 OHM • Inlet: 3/8″ NPT-F • Outlet: 3/8″ NPT-F • Voltage: 250 VAC • Material: Brass, Stainless Steel, Plastic, Nickel-plated Neodymium • Dimensions: 3.91″ x 1.4″ x 2.95″ • Weight: 1.25 lbs. GP100879 with Pilot Specifications: A flow switch with pilot feature that activates with as little as .5 GPM flow. For vertical mounting in tanks and reservoirs. Note: If you use a downstream chemical injector, it should be mounted on the output side of the flow switch. • Maximum Operating Pressure: 4000 PSI • Minimum Flow Required for Activation: 0.5 GPM @ 50 PSI • Maximum Operating Flow: 12.0 GPM • Operating Temperature Range: 40 – 180 °F • Electrical Lead Length: 48″ – 18AWG • Max Switching Voltage: 250 VAC • Max Switching Current: 5 AMPS • Resistance with Leads: 30 OHM • Electrical Service Life: 200,000 Cycles • Mechanical Service Life: 10,000,000 Cycles • Inlet: 3/8″ x 18 NPT-F • Outlet: 3/8″ x 18 NPT-F • Pilot: 1/4″ Hose Barb • Dimensions: 4.1″ x 1.6″ x 1.0″ • Weight: 1.3 LBS • Materials: Buna-N, Brass, Plastic, Nickel Plated Neodymium • Pilot valve replacement available GP103073 (sold separately)
