Big Dipper Passive LD-500


The Big Dipper Passive (formerly Little Dipper) LD-500 Hydromechanical Grease Interceptor is rated to the ASME A112.14.3 standard and is capable of accepting up to a 50 GPM (3.15 l/s) flow while holding 100+ Pounds (45.4+ Kg) of grease.


Big Dipper Passive Model No. LD-500, bright finish type 304 stainless steel exterior, rotationally moulded polyethene interior passive hydromechanical grease interceptor(s) for floor mounted or partially recessed installation, rated by ASME A112.14.3 standard at 50 gallons per minute (3.15 l/s) peak flow to separate and retain up to 100+ Pounds (45.4+ Kg) of grease capacity and including as an integral part of the unit, 3″ (75mm) Inlet/Outlet connections, an integral flow control device, an integral gas trap, quick release stainless steel lid clamps, 1” NPT vessel vent connection, and a gasket and fully removable 304 stainless steel lid. Two (2) no-hub connectors for plumbing connection provided.

Constructed of corrosion-resistant materials suitable for installation in virtually any location.

Attractive sanitary Stainless Steel exterior.

Compact footprint.

Two (2) No-Hub Connectors provided.


Exterior: 304 Stainless Steel, Bright Finish

Interior: Rotationally Molded Polyethylene

Inlet/Outlet Size:  3″ (75mm)

Maximum Inlet Flow Rate:  50 GPM (3.15 l/s)

Grease Retention Capacity:  100+ Pounds (45.4+ Kg)