--- title: HPBC Integrated Check Valve Breathers Specifications --- [![Donaldson Hy-Pro](https://www.hyprofiltration.com/hs-fs/hubfs/Donaldson%20Hy-Pro%20Logo_Blue.png?width=170&height=76&name=Donaldson%20Hy-Pro%20Logo_Blue.png) ![Donaldson Hy-Pro](https://www.hyprofiltration.com/hs-fs/hubfs/Donaldson%20Hy-Pro%20Logo_Blue.png?width=170&height=76&name=Donaldson%20Hy-Pro%20Logo_Blue.png) ](https://www.hyprofiltration.com?hsLang=en) [**](https://www.hyprofiltration.com/products/reservoir-accessories/hpbc#tmpmodule_1710871496765239) [![Distributors](https://no-cache.hubspot.com/cta/default/170326/6a993b6f-f737-4a22-8a35-a45c4da5c3b4.png)](https://cta-redirect.hubspot.com/cta/redirect/170326/6a993b6f-f737-4a22-8a35-a45c4da5c3b4) [![eCatalog](https://no-cache.hubspot.com/cta/default/170326/4050f587-90b6-4151-8b5e-82d87ca58336.png)](https://cta-redirect.hubspot.com/cta/redirect/170326/4050f587-90b6-4151-8b5e-82d87ca58336) ** ## HPBC Integrated Check Valve Breathers #### High Humidity & Dust Applications The HPBC Disposable Breather is an advanced hydraulic reservoir breather designed to provide superior contamination control in the most demanding environments. Building on the core technology of our HPB Disposable Breathers, the HPBC model features integrated intake and exhaust check valves. These one-way valves act as a seal, closing the system from the atmosphere until airflow is required. This innovative design can help extend the life of the desiccant breather and ensure that your system is protected from contaminants at all times. Ideal for high humidity and dust applications, the HPBC is a powerful tool for moisture and particulate removal. The reusable top cap, which houses the check valves, provides incredible ease of use when replacing spent cartridges, and it protects the new breather with check valves from the moment you install it. By helping prevent contamination from ever entering your hydraulic system, the HPBC is designed to extend the life of your fluid and equipment, reducing maintenance costs and downtime.   [![Download Brochure](https://no-cache.hubspot.com/cta/default/170326/cb04a89c-922f-49bb-a64e-cb1f4ae2f3c0.png)](https://cta-redirect.hubspot.com/cta/redirect/170326/cb04a89c-922f-49bb-a64e-cb1f4ae2f3c0) HPBC-100 ![BC-100](https://www.hyprofiltration.com/hs-fs/hubfs/Hy-Pro%20Website%20Images/Hy-Dry%20Breathers/HPBC/BC-100.jpg?width=1364&name=BC-100.jpg "BC-100") #### Height 6.25'' 15.9 cm #### Diameter 3.25'' 8.3 cm #### Stem Height N/A N/A #### Connection 1/2" FNPT #### Check Valve in 0.1 psi 0.007 bar #### Check Valve out 0.1 psi 0.007 bar #### Silica Gel 0.8 lb 0.36 kg #### Fluid Capacity 4.91 oz 145 ml #### Airflow 10 cfm 17 m³/h #### Reservoir Flow 75 gpm 284 lpm #### Replacement Cartridge HPB-143 #### Particulate Efficiency 2μ[C]>1000 HPBC-101 ![BC-101](https://www.hyprofiltration.com/hs-fs/hubfs/Hy-Pro%20Website%20Images/Hy-Dry%20Breathers/HPBC/BC-101.jpg?width=1902&name=BC-101.jpg "BC-101") #### Height | 7'' | | --- | | 17.8 cm | #### Diameter | 5'' | | --- | | 12.7 cm | #### Stem Height | 1.25'' | | --- | | 3.2 cm | #### Connection 1" Slip Fit #### Check Valve in | 0.1 psi | | --- | | 0.007 bar | #### Check Valve out | 0.1 psi | | --- | | 0.007 bar | #### Silica Gel | 1.4 lb | | --- | | 0.64 kg | #### Fluid Capacity | 8.6 oz | | --- | | 254 ml | #### Airflow | 20 cfm | | --- | | 34 m³/h | #### Reservoir Flow | 150 gpm | | --- | | 568 lpm | #### Replacement Cartridge HPB-341 #### Particulate Efficiency 2μ[C]>1000 HPBC-102 ![BC-102](https://www.hyprofiltration.com/hs-fs/hubfs/Hy-Pro%20Website%20Images/Hy-Dry%20Breathers/HPBC/BC-102.jpg?width=1890&name=BC-102.jpg "BC-102") #### Height | 10'' | | --- | | 25.4 cm | #### Diameter | 5'' | | --- | | 12.7 cm | #### Stem Height | 1.25'' | | --- | | 3.2 cm | #### Connection 1" Slip Fit #### Check Valve in | 0.1 psi | | --- | | 0.007 bar | #### Check Valve out | 0.1 psi | | --- | | 0.007 bar | #### Silica Gel | 2.7 lb | | --- | | 1.22 kg | #### Fluid Capacity | 16.56 oz | | --- | | 490 ml | #### Airflow | 20 cfm | | --- | | 34 m³/h | #### Reservoir Flow | 150 gpm | | --- | | 568 lpm | #### Replacement Cartridge HPB-342 #### Particulate Efficiency 2μ[C]>1000 HPBC-121 ![BC-121](https://www.hyprofiltration.com/hs-fs/hubfs/Hy-Pro%20Website%20Images/Hy-Dry%20Breathers/HPBC/BC-121.jpg?width=1822&name=BC-121.jpg "BC-121") #### Height | 7'' | | --- | | 17.8 cm | #### Diameter | 5'' | | --- | | 12.7 cm | #### Stem Height | 1.625'' | | --- | | 4.1 cm | #### Connection 2" MNPT #### Check Valve in | 0.1 psi | | --- | | 0.007 bar | #### Check Valve out | 0.1 psi | | --- | | 0.007 bar | #### Silica Gel | 1.4 lb | | --- | | 0.64 kg | #### Fluid Capacity | 8.6 oz | | --- | | 254 ml | #### Airflow | 20 cfm | | --- | | 34 m³/h | #### Reservoir Flow | 150 gpm | | --- | | 568 lpm | #### Replacement Cartridge HPB-343 #### Particulate Efficiency 2μ[C]>1000 HPBC-122 ![BC-122](https://www.hyprofiltration.com/hs-fs/hubfs/Hy-Pro%20Website%20Images/Hy-Dry%20Breathers/HPBC/BC-122.jpg?width=1958&name=BC-122.jpg "BC-122") #### Height | 10'' | | --- | | 25.4 cm | #### Diameter | 5'' | | --- | | 12.7 cm | #### Stem Height | 1.625'' | | --- | | 4.1 cm | #### Connection 2" MNPT #### Check Valve in | 0.1 psi | | --- | | 0.007 bar | #### Check Valve out | 0.1 psi | | --- | | 0.007 bar | #### Silica Gel | 2.7 lb | | --- | | 1.22 kg | #### Fluid Capacity | 16.56 oz | | --- | | 490 ml | #### Airflow | 20 cfm | | --- | | 34 m³/h | #### Reservoir Flow | 150 gpm | | --- | | 568 lpm | #### Replacement Cartridge HPB-344 #### Particulate Efficiency 2μ[C]>1000 HPBC-503 ![BC-503](https://www.hyprofiltration.com/hs-fs/hubfs/Hy-Pro%20Website%20Images/Hy-Dry%20Breathers/HPBC/BC-503.jpg?width=1990&name=BC-503.jpg "BC-503") #### Height | 7'' | | --- | | 17.8 cm | #### Diameter | 5'' | | --- | | 12.7 cm | #### Stem Height | 1.375'' | | --- | | 3.5 cm | #### Connection 1" MNPT #### Check Valve in | 0.1 psi | | --- | | 0.007 bar | #### Check Valve out | 0.1 psi | | --- | | 0.007 bar | #### Silica Gel | 1.4 lb | | --- | | 0.64 kg | #### Fluid Capacity | 8.6 oz | | --- | | 254 ml | #### Airflow | 20 cfm | | --- | | 34 m³/h | #### Reservoir Flow | 150 gpm | | --- | | 568 lpm | #### Replacement Cartridge HPB-345 #### Particulate Efficiency 2μ[C]>1000 HPBC-505 ![BC-505](https://www.hyprofiltration.com/hs-fs/hubfs/Hy-Pro%20Website%20Images/Hy-Dry%20Breathers/HPBC/BC-505.jpg?width=1871&name=BC-505.jpg "BC-505") #### Height | 10'' | | --- | | 25.4 cm | #### Diameter | 5'' | | --- | | 12.7 cm | #### Stem Height | 1.375'' | | --- | | 3.5 cm | #### Connection 1" MNPT #### Check Valve in | 0.1 psi | | --- | | 0.007 bar | #### Check Valve out | 0.1 psi | | --- | | 0.007 bar | #### Silica Gel | 2.7 lb | | --- | | 1.22 kg | #### Fluid Capacity | 16.56 oz | | --- | | 490 ml | #### Airflow | 20 cfm | | --- | | 34 m³/h | #### Reservoir Flow | 150 gpm | | --- | | 568 lpm | #### Replacement Cartridge HPB-346 #### Particulate Efficiency 2μ[C]>1000 ## Have a Question for Donaldson Hy-Pro? 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