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Transparent cylindrical spin-on filter with 3/4 inch thread and bypass valve

Baldwin Filters

Baldwin Filters B228 Spin-On HVAC Control 3/4" Thread 23 Micron 30 psid Bypass Valve

SKU CH-14B7-9702H

Spin-on HVAC control with 3/4" thread, 23 micron filtration and 30 psid bypass valve for compressor and engine systems

  • ColorTransparent
  • Full-flow filtration protects engine components
  • 23 micron rating captures fine contaminants
  • 30 psid bypass valve maintains oil flow under pressure
  • Anti-drainback valve prevents dry starts
  • 3/4"-16 thread fits Atlas Copco, Audi, BMW, GM, Bobcat, Case, Gehl, Deutz applications

Baldwin B228 Spin-On HVAC Control

This Baldwin Filters B228 is a spin-on HVAC control designed for full-flow lubrication filtration. It fits Atlas Copco compressors and engines from Audi, BMW, GM, Bobcat, Class, Gehl and Deutz. The unit uses a 3/4 In. -16 thread for direct installation. It is not for buyers who need a different thread size or micron rating.

Thermals, Noise and Power Draw

As a passive filtration component, the B228 generates no operational noise and draws no electrical power. Thermal management depends entirely on the host engine or compressor system. The 30 psid bypass valve opens automatically if the element becomes restricted, maintaining lubricant flow. It suits installations where silent, maintenance-free operation is required.

Bundled Accessories and Software

The filter includes a 30 psid bypass valve and an anti-drainback valve built into the housing. The bypass valve prevents oil starvation during cold starts or heavy contamination. The anti-drainback valve retains oil in the filter after shutdown for faster pressure recovery. No software, electronic sensors or separate hardware are supplied with this unit.

Highlights

  • Full-flow filtration protects engine components
  • 23 micron rating captures fine contaminants
  • 30 psid bypass valve maintains oil flow under pressure
  • Anti-drainback valve prevents dry starts
  • 3/4"-16 thread fits Atlas Copco, Audi, BMW, GM, Bobcat, Case, Gehl, Deutz applications

Specifications

BrandBALDWIN FILTERS
ColorTransparent

Questions about this item

How do I install the B228 spin-on filter and what step is often missed?

Screw the 3/4"-16 thread onto the mounting base by hand until the gasket seats, then turn an additional three-quarters of a turn; the step often missed is pre-filling the canister with clean oil to prevent dry starts.

What maintenance or replacement will the B228 need later?

Replace the filter at the engine or compressor manufacturer's recommended service interval; the 23 micron media and 30 psid bypass valve are single-use and cannot be cleaned or reused.

What limit appears first on the B228 during sustained operation?

The 30 psid bypass valve opens when pressure differential across the 23 micron media reaches that threshold, allowing unfiltered flow to protect the lubrication system.

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