GJ 4

Construction / Design:

New features: Streamlined turbine and internal flow passages, including a patented porting design that significantly improves efficiency.

Castings:

Investment cast parts of type 316 stainless steel ensure consistent strength & quality for higher pressure ratings.

Shafts:

Rotor shaft and gearbox shafts are made of hardened stainless steel. For increased wear resistance, the rotor shaft is supplied with a plasma-sprayed ceramic or other protective coating. The rotor shaft is also fitted with a polished carbide thrust washer for added durability.

Bearings, Shaft: 

Rotor shaft bearings are tungsten carbide. Gearbox shaft bearings in flo-thru (oilless) gearboxes are PTFE or other non-cupric materials. Standard bearings in oil-lubricated gearboxes are Oilite bronze with nonmetallic bearings available as an option.

Seals, Static: 

O-ring materials are selected for each application. Viton is standard.

Drive Gears:

A new gear system of improved design and construction is incorporated in Gamajet IV "GT" models for increased durability.

Increased wear life: 

All gears are manufactured entirely of selected stainless steel alloys and the two bottom gears are fitted with long-life tungsten carbide thrust washers.

Lubrication, Gearbox: Sealed: 

Oil-lubricated machines have a sealed gearbox filled with FDA approved oil.

Flo-thru: 

The flo-thru gearbox is lubricated by the cleaning solution. With this option, maintenance of gearbox seals is eliminated.