Comet TW5573S High Pressure Triplex Pump - 22 L/min, 7,300 psi

When the job needs 500 bar. The TW 500 runs a heavier crankcase and a 30 mm shaft to handle 7,300 psi continuously, which puts it into hydro demolition, paint and coating removal, and heavy industrial cleaning. This is not a pump you fit to a general purpose washer.

The Comet TW5573S delivers 22 L/min at 7,300 psi running at 1,450 rpm, with a 30mm solid shaft.

Specifications

What is in the box

• One TW 500 belt drive pump, the model you choose above
• Factory oil fill – check the level before first start
• Pump only. Unloader, gauge, pulley, hose and gun are separate unless you ask us to build a package

Specifications and drawings

Manufacturer documents for this model, free to download.

Owner / operator manual (PDF)Spare parts list (PDF)Manufacturer data sheet (PDF)

Technicians Advice

• Starve a plunger pump and you will kill it. These want a flooded inlet or a gravity feed. A long, thin or half collapsed suction hose cavitates the pump, and you hear it as a rattle long before you see it as pitted plungers and a shredded seal kit.
• The unloader does more damage than the pump ever will. Long spells in bypass heat the water, and hot water in a bypass loop cooks the seals. If the operator sits on the trigger lock with the gun shut, run the bypass back to tank rather than round a loop.
• Change the oil early and often. First change at about 50 hours to clear the run-in debris, then every 500. Milky oil means water has got past the seals - that is the pump telling you the seal kit is due, not that it has failed.
• Belt tension is a setting, not a guess. Too loose and you glaze the belt and lose flow under load; too tight and you side load the crankshaft bearing. Aim for about 10 to 15 mm deflection at the middle of the span under firm thumb pressure.
• Water quality decides seal life more than hours do. Bore and recycled wash bay water carries grit that laps the ceramic plungers. A 50 mesh inlet filter is the cheapest insurance you will ever fit.
• Never run it dry, not even briefly. The water is the lubricant and the coolant for the plunger seals. Priming a dry pump with the gun shut is how a new pump becomes a warranty argument.

Complete your setup

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Fitting out a fleet or building machines? Call us and we will price the job.

Need help matching a pump to your machine? Call 1300 146 737 or email sales@mhfgc.com.au – real technicians, real answers.