Wartsila L20 Plunger
Wartsila L20 Plunger
The Wartsila L20 Plunger is a core precision fuel pump plunger and barrel assembly specially designed for Wärtsilä L20 series four-stroke medium-speed diesel engines.
Quantity
Description
Plunger: A high-precision chrome-plated/nitride alloy steel plunger with a spiral groove, radial bore, and central bore on the upper part to control the start/end point and oil quantity of the fuel supply.
Barrel: A pair of milled precision steel sleeves with inlet/outlet ports, forming a micron-level sealing gap with the plunger.
Partition Characteristics: Milled in pairs, not interchangeable; gap approximately 2–5 μm, requires fuel lubrication and cooling.
Barrel: A pair of milled precision steel sleeves with inlet/outlet ports, forming a micron-level sealing gap with the plunger.
Partition Characteristics: Milled in pairs, not interchangeable; gap approximately 2–5 μm, requires fuel lubrication and cooling.
