Atlas Copco OSE Pipe Nipple / Instrument Block Pipe Replacement – 1622654380

Atlas Copco 1622654380 – OSE Pipe Nipple / Instrument Block Pipe

The Atlas Copco 1622654380 (1622-6543-80) OSE Pipe Nipple is a precision connection component used in the oil-injected screw compressor circuit. It provides a secure connection between the compressor’s instrument/control block and the associated tubing or piping, allowing controlled transmission of air or pressure signals.

Working Process:

During compressor operation, different components require pressure signals to control and monitor compressor functions. The 1622654380 pipe nipple forms part of the connection between the instrument block and the corresponding tubing circuit.

Compressed air or control pressure passes through the connected piping and the pipe nipple. This pressure signal can be used by the compressor’s pneumatic control system for monitoring, regulation, or actuation of associated valves and control components.

The pipe nipple provides a mechanically secure and pressure-tight connection between the instrument block and the connected pipe or hose. Its accurately manufactured connection surfaces help maintain the required seal and prevent leakage of compressed air or control pressure.

During normal operation, the component is exposed to pressure fluctuations, vibration, temperature changes, and compressor operating conditions. Maintaining a reliable connection is therefore important for stable operation of the pneumatic control circuit.

The 1622654380 is identified in Atlas Copco parts references as “PIPE NIPPLE OSE INSTR.BLOCK.” A government procurement specification also identifies it as an “OSE pipe” for an Atlas Copco GAe26-10P oil-injected rotary screw air compressor.

The part is also listed with the designation 1622-6543-80 Pipe in Atlas Copco compressor-parts catalogs.

During maintenance, the compressor must be stopped, isolated, and completely depressurized before the pipe nipple or connected instrument tubing is removed. The connection threads and sealing surfaces should be inspected for damage, wear, contamination, or deformation.

If the pipe nipple is damaged or leaking, it should be replaced with the correct Atlas Copco component. The mating threads and sealing surfaces should be clean before installation, and the connection should be tightened according to the applicable Atlas Copco service procedure.

After installation, the compressor should be started and the instrument/control circuit checked for air leakage. The relevant pressure signals should also be verified to ensure that connected control components operate correctly.

A damaged or leaking pipe nipple can cause loss of pneumatic control pressure, inaccurate pressure signals, control-valve malfunction, unstable compressor operation, or air leakage.

Correct installation of the 1622654380 OSE Pipe Nipple helps maintain a secure pressure connection, reliable pneumatic control signals, proper instrument-block operation, and dependable compressor performance.

Part Number: 1622654380
Alternative Number: 1622-6543-80 / 1622 6543 80
Brand: Atlas Copco
Part Description: Pipe Nipple OSE Instrument Block / Pipe
Component Type: Compressor instrument/control piping connection
Application: Atlas Copco oil-injected rotary screw compressors
Known Application: GAe26-10P
Primary Function: Connects the instrument block with the associated pressure/control tubing
Operating Function: Transfers compressed-air/control pressure signals
Main Benefits: Secure pressure connection, reduced leakage, reliable pneumatic control, and stable compressor operation.

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