32 www.morbros.com Spill Prevention Equipment Overfill Prevention Valve for Used Oil Systems Patent 5007450… valve with optional alarm for use on used oil evacuation systems which use an air operated pump. Operation 1. Valve installs in 2" bung opening at the top of the tank. Air supply is routed through the valve before going to the pump. 2. The valve will close off air supply to the pump when liquid level reaches the levels shown: FMMASO-91 and 91S 7" From Top of Tank FMMASO-91EX and 91EXS 17 3/8" From Top of Tank 3. Air is diverted to the audible signal on models FMMASO-91S and FMMASO-91EXS. 4. The valve will reset as liquid is removed from the tank and air pressure to the valve is turned off. Code Compliance Florida DEP EQ 576. Specifications Valve Body and Collar…anodized aluminum Float…polypropylene Float Rod and Valve Spool…brass O-ring seals…Viton® Hardware… stainless and plated steel Installation Collar…2" NPT Air inlet and outlet…¼" NPT Overall length (including float and audible signal)…20" Shipping weight…2.0 lbs Shipping weight (Fig. FMMASO-91EX)…4.5 lbs Models Fig. (FMMASO-91)… standard valve without audible signal. Fig. (FMMASO-91S)… standard valve with audible signal. BSP Part Number FMMASOB-91S. Fig. (FMMASO-91EX)… same as Fig. FMMASO-91, but with extended body for use on double wall or vaulted tanks. Fig. (FMMASO-91EXS)… same as Fig. FMMASO-91EX, but with audible signal. Fig. (FMMATO-91)… high level turn-on for sump applications (no signal). Fig. FMMASO-91S Simplex Tank Gauge Used for measuring liquid level in aboveground storage tanks. Best suited for vertical tanks over 12 ft high. Gauge readout by tape which passes over an indicator mounted at 3 ft height on the side of the tank. Activated mechanically by a float that rests on the liquid level. Float is connected to a cable that runs up through the top of the tank, across two pulleys, and down the side of the tank to the indicator position. Construction Details Tape sizes available: tape for up to 31' tank and tape for 31' to 50' tank Standard Features 1. Round copper float 2. Tape 3. Stainless steel cable 4. Vapor seal Options (must specify) 1. Round stainless steel float with swivel (101/8 " diameter). 2. Brass cylindrical float (1¾" diameter, 32" long) with center swivel. 3. Stainless steel cylindrical float (1¾" diameter, 32" long) with center swivel. 4. Metric not available. NOTE…Cylindrical floats will pass through a 2" opening. NOTE…Installation instructions are included, piping is not included. FMMASO-91 Series 618
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