1622272821 Thermostatic Oil Filter Housing For Atlas Screw Air Compressor

Steady oil temperature and clean filtration start with a leak-free filter housing. 1622272821 is a thermostatic oil filter housing (oil filter base / valve housing) for Atlas Copco oil-injected rotary screw compressors. Officially listed as "housing therm.", it integrates the oil filter mount with thermal flow routing, directing lubricating oil through the filter and bypass path while helping stabilize operating temperature in the lube circuit.

A cracked casting, warped flange, or failed internal seal causes external oil leaks, pressure loss at the filter, poor bypass control, overheating, and accelerated airend wear. Port corrosion or reused gaskets are common leak sources. During replacement: shut down, relieve pressure, drain oil, remove the old housing, clean the mounting face, fit the new 1622272821 with fresh gaskets and O-rings, torque bolts evenly, refill oil, and check for seepage under load. Confirm port layout, thread size, and filter head compatibility with the removed part and machine serial.

Also called oil filter housing, thermo housing, filter base, lube filter head.