Danfoss 180B4146 Cylinder Barrel Set for APP 1.5, 1.8, 2.2 & 2.5 Pumps
The Danfoss 180B4146 Cylinder Barrel Set is a critical OEM replacement component designed for maintaining peak performance in Danfoss APP high-pressure pumps. Built specifically for APP 1.5, 1.8, 2.2, and 2.5 models, this cylinder barrel kit ensures precise fluid handling and consistent pressure output in demanding industrial and water treatment environments.
Manufactured using highly corrosion-resistant Super Duplex stainless steel, the 180B4146 cylinder barrel is engineered for long service life even in aggressive media such as seawater and brackish water applications. It plays a central role in the axial piston pump mechanism, supporting efficient piston movement and system reliability.
Ideal for preventive maintenance or full pump rebuilds, this genuine Danfoss spare part helps reduce downtime and extend equipment lifespan. Regular replacement—typically around 40,000 operating hours depending on conditions—ensures optimal efficiency and protects critical pump components.
Key Features
- OEM Danfoss part number 180B4146
- Designed for APP 1.5, 1.8, 2.2, and 2.5 pumps
- Super Duplex stainless steel construction for corrosion resistance
- Precision-machined for axial piston pump performance
- Supports long service intervals and reliable operation
Applications
- Reverse osmosis (RO) desalination systems
- Industrial high-pressure water systems
- Brackish and seawater treatment plants
- Offshore and marine water systems
- Municipal and industrial water processing
Specifications
- Part Number: 180B4146
- Product Type: Cylinder barrel kit
- Compatible Pumps: APP 1.5, APP 1.8, APP 2.2, APP 2.5
- Material: Super Duplex stainless steel / PEEK components
- Product Line: Danfoss High-Pressure Pumps
FAQs
What does the Danfoss 180B4146 cylinder barrel do?
It houses and guides the pistons inside the APP pump, enabling consistent high-pressure fluid movement.
Is the 180B4146 compatible with all APP pumps?
No, it is specifically designed for APP 1.5, 1.8, 2.2, and 2.5 models.
What material is the cylinder barrel made from?
It is made from Super Duplex stainless steel for superior corrosion resistance in harsh environments.
When should the cylinder barrel be replaced?
Typical service intervals are around 40,000 hours, depending on operating conditions.
Is this an OEM part?
Yes, 180B4146 is a genuine Danfoss OEM replacement part.