Ertel engineering gear pump model 20-esp, serial # na. Features all 316 stainless steel construction with polyethalene (ryton) gears, manufacturer rates performance at 20 gpm, adjustable pressure relief cover/bypass, 1. 250" inlet and outlet with npt connections, pump pressures to 50 psi, packing gland type shaft seal, inlet check valve, belt driven by reliance 1 horsepower motor @ 1750 rpm, 500 rpm final pump speed, 115/230/1 phase voltage, ul listed for hazardous locations under class i, group d and class ii, groups f &g, on/off switch is mounted on motor junction box, belt and pump shaft guards, mounted on 21 x 25" common base with casters. Formerly used in personal care products.
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