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The 20-40bar High-Pressure BH Series Stainless Steel Precision Filter is a heavy-duty compressed air filtration unit designed for high-pressure industrial systems operating between 20 and 40 bar (2.0–4.0 MPa) . It features a 304 or 316L stainless steel housing and a precision filter element capable of removing solid particles, oil aerosols, and moisture from compressed air systems. The series is engineered to provide clean, high-quality compressed air for critical applications where contamination cannot be tolerated.

1. High-Pressure Capability
Designed for demanding high-pressure applications, the BH Series operates reliably at pressures up to 40 bar (4.0 MPa), ensuring stable performance under extreme conditions .
2. Premium Stainless Steel Construction
The filter housing is constructed from 304 or 316L stainless steel, offering exceptional corrosion resistance and durability in harsh industrial environments, including offshore, chemical, and food processing facilities .
3. High Filtration Efficiency
Equipped with precision filter elements, the BH Series achieves filtration ratings down to 0.01–3 μm with efficiency up to 99.999%, effectively removing solid particulates, oil aerosols, and moisture to meet stringent air quality standards .
4. Low Pressure Drop & Energy Saving
Advanced filter media and optimized flow path design minimize initial pressure drop (as low as 0.04 bar dry), rducing energy consumption and operating costs over the system lifetime.
5. Wide Temperature Tolerance
The filter operates effectively across a broad temperature range, from -20°C to +120°C, making it suitable for both cold outdoor installations and high-temperature process environments .
6. Long Service Life & Low Maintenance
The stainless steel construction resists fatigue and corrosion, while the replaceable filter elements feature high dirt-holding capacity, extending service intervals and reducing maintenance frequency.
| Model | Flow rate (m³/min) | Interface | Height | Conjugate diameter | Sewage outlet |
| BH-010* | 1 | 1/2'' 3/4'' 1'' | 230mm | 80mm | 1/2 |
| BH-020* | 2 | 1/2'' 3/4'' 1'' | 230mm | 80mm | 1/2 |
| BH-030* | 3 | 1 '' | 260mm | 106mm | 1/2 |
| BH-050* | 5 | 1-1/2'' | 405mm | 115mm | 1/2 |
| BH-070* | 7 | 1-1/2'' | 505mm | 115mm | 1/2 |
| BH-100* | 11 | 1-1/2'' | 620mm | 115mm | 1/2 |
| BH-100* | 11 | 2 '' | 620mm | 140mm | 1/2 |
Filtration Levels:
Class C: Filtration accuracy: 3µm, Oil content: 3ppm
Class T: Filtration accuracy: 1µm, Oil content: 1ppm
Class A: Filtration accuracy: 0.01µm, Oil content: 0.01ppm
Class X: Filtration accuracy: 0.01µm, Oil content: 0.003ppm
Class H (Activated Carbon): Filtration accuracy: 0.01µm, Oil content: 0.001ppm
Class F (High-efficiency dust removal): Filtration accuracy 0.1µm
Class FF (Ultra-high-efficiency dust removal): Filtration accuracy 0.01µm
The 20-40bar BH Series Stainless Steel Precision Filter is ideal for high-pressure compressed air systems across multiple industries:
PET Bottle Blowing: Ensures oil-free, particle-free air for high-quality bottle production at 25–40 bar
Food & Beverage Industry: Provides ISO 8573-1 Class 0 or Class 1 air for contamination-sensitive processes
Pharmaceutical Manufacturing: Delivers sterile, oil-free compressed air for critical production areas
Chemical & Petrochemical: Removes contaminants from high-pressure process air and instrument air systems
Automotive Industry: Supplies clean compressed air for painting, pneumatic controls, and testing equipment
Electronics Manufacturing: Protects sensitive components from particulate contamination
Industrial Gas & Power Generation: Filters instrument air and control air in high-pressure systems
General High-Pressure Industrial Applications: Suitable for any 20-40bar system requiring reliable, high-quality compressed air.
Q1: How do I choose a filtration accuracy?
A: Standard pneumatic tools (1μm), precision instruments (0.01μm), sterility requirements (with activated carbon layer).
Q2: How often should the filter element be replaced?
A: Typically 3-12 months (depending on the contaminant content, replacement is required when the pressure differential is ≥ 0.7 bar).
Q3: Can it remove oil and water?
A: It must be used in conjunction with a dryer. Precision filters primarily remove particles and oil mist, and some models can absorb trace amounts of oil.
Q4: Are there any installation location requirements?
A: Generally, it should be located downstream of the dryer, close to the gas point of use for best results.
Q5: Will it affect the air pressure?
A: A high-quality filter element has a pressure drop of ≤ 0.2 bar. If it becomes clogged, the pressure drop increases and needs to be replaced promptly.
The 20-40bar High-Pressure BH Series Stainless Steel Precision Filter is a heavy-duty compressed air filtration unit designed for high-pressure industrial systems operating between 20 and 40 bar (2.0–4.0 MPa) . It features a 304 or 316L stainless steel housing and a precision filter element capable of removing solid particles, oil aerosols, and moisture from compressed air systems. The series is engineered to provide clean, high-quality compressed air for critical applications where contamination cannot be tolerated.

1. High-Pressure Capability
Designed for demanding high-pressure applications, the BH Series operates reliably at pressures up to 40 bar (4.0 MPa), ensuring stable performance under extreme conditions .
2. Premium Stainless Steel Construction
The filter housing is constructed from 304 or 316L stainless steel, offering exceptional corrosion resistance and durability in harsh industrial environments, including offshore, chemical, and food processing facilities .
3. High Filtration Efficiency
Equipped with precision filter elements, the BH Series achieves filtration ratings down to 0.01–3 μm with efficiency up to 99.999%, effectively removing solid particulates, oil aerosols, and moisture to meet stringent air quality standards .
4. Low Pressure Drop & Energy Saving
Advanced filter media and optimized flow path design minimize initial pressure drop (as low as 0.04 bar dry), rducing energy consumption and operating costs over the system lifetime.
5. Wide Temperature Tolerance
The filter operates effectively across a broad temperature range, from -20°C to +120°C, making it suitable for both cold outdoor installations and high-temperature process environments .
6. Long Service Life & Low Maintenance
The stainless steel construction resists fatigue and corrosion, while the replaceable filter elements feature high dirt-holding capacity, extending service intervals and reducing maintenance frequency.
| Model | Flow rate (m³/min) | Interface | Height | Conjugate diameter | Sewage outlet |
| BH-010* | 1 | 1/2'' 3/4'' 1'' | 230mm | 80mm | 1/2 |
| BH-020* | 2 | 1/2'' 3/4'' 1'' | 230mm | 80mm | 1/2 |
| BH-030* | 3 | 1 '' | 260mm | 106mm | 1/2 |
| BH-050* | 5 | 1-1/2'' | 405mm | 115mm | 1/2 |
| BH-070* | 7 | 1-1/2'' | 505mm | 115mm | 1/2 |
| BH-100* | 11 | 1-1/2'' | 620mm | 115mm | 1/2 |
| BH-100* | 11 | 2 '' | 620mm | 140mm | 1/2 |
Filtration Levels:
Class C: Filtration accuracy: 3µm, Oil content: 3ppm
Class T: Filtration accuracy: 1µm, Oil content: 1ppm
Class A: Filtration accuracy: 0.01µm, Oil content: 0.01ppm
Class X: Filtration accuracy: 0.01µm, Oil content: 0.003ppm
Class H (Activated Carbon): Filtration accuracy: 0.01µm, Oil content: 0.001ppm
Class F (High-efficiency dust removal): Filtration accuracy 0.1µm
Class FF (Ultra-high-efficiency dust removal): Filtration accuracy 0.01µm
The 20-40bar BH Series Stainless Steel Precision Filter is ideal for high-pressure compressed air systems across multiple industries:
PET Bottle Blowing: Ensures oil-free, particle-free air for high-quality bottle production at 25–40 bar
Food & Beverage Industry: Provides ISO 8573-1 Class 0 or Class 1 air for contamination-sensitive processes
Pharmaceutical Manufacturing: Delivers sterile, oil-free compressed air for critical production areas
Chemical & Petrochemical: Removes contaminants from high-pressure process air and instrument air systems
Automotive Industry: Supplies clean compressed air for painting, pneumatic controls, and testing equipment
Electronics Manufacturing: Protects sensitive components from particulate contamination
Industrial Gas & Power Generation: Filters instrument air and control air in high-pressure systems
General High-Pressure Industrial Applications: Suitable for any 20-40bar system requiring reliable, high-quality compressed air.
Q1: How do I choose a filtration accuracy?
A: Standard pneumatic tools (1μm), precision instruments (0.01μm), sterility requirements (with activated carbon layer).
Q2: How often should the filter element be replaced?
A: Typically 3-12 months (depending on the contaminant content, replacement is required when the pressure differential is ≥ 0.7 bar).
Q3: Can it remove oil and water?
A: It must be used in conjunction with a dryer. Precision filters primarily remove particles and oil mist, and some models can absorb trace amounts of oil.
Q4: Are there any installation location requirements?
A: Generally, it should be located downstream of the dryer, close to the gas point of use for best results.
Q5: Will it affect the air pressure?
A: A high-quality filter element has a pressure drop of ≤ 0.2 bar. If it becomes clogged, the pressure drop increases and needs to be replaced promptly.