Features

• 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: 1/4" NPT
• Overall length (including float and audible signal): 20"

Operation

• Valve installs in 2" bung opening at the top of the tank. Air supply is routed through the valve before going to the pump
• 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
• Air is diverted to the audible signal on models FMMASO-91S and FMMASO-91EXS.
• The valve will reset as liquid is removed from the tank and air pressure to the valve is turned off.

• Valve Body and Collar ......... Anodized Aluminum
• Float................................................. Polypropylene
• Float Rod & Valve Spool .............................. Brass
• O-Ring Seals ................................................ Viton�
• Hardware .......................................... 316 Stainless
• Air Inlet .....................................1/4" Female N.P.T.
• Air Outlet ..................................1/4" Female N.P.T.
• Signal Port ...............................1/8" Female N.P.T.
• Mounting ......................................... 2" Male N.P.T.
• Maximum Air Pressure ............................. 150 PSI
• Air Flow Capacity ...................20 CFM @ 100 PSI
• Operating Temperature ................. -10� to 185� F
• Weight ...........................................................3.5 lbs