ARCA BIOVENT® Hygienic Valve
Ensuring Precision and Efficiency
The ARCA BIOVENT® hygiene valve features zero dead space and is designed to ensure that it can be thoroughly cleaned. The modular design of the valve housing, connections, stem seals, valve trims, actuator, and positioned enables it to be optimized in line with your requirements.
The hygiene-oriented design, efficiency, control precision, price/performance ratio, and maintenance outlay of the ARCA BIOVENT® hygiene valve are carefully harmonized to minimize the total cost of ownership. Our commitment to innovation in valve technology ensures that you benefit from maximum control precision for your application. Why not see for yourself!

Our innovations
- Flow-optimized valve housing
- Nominal diameter identical to internal diameter of piping
- Compact module connection by means of clamping rings
- Valve plug and seat can be replaced separately
- Stem seal with special sealing element
- and additional wiper ring
- Modular system
- Customized sealing solutions
- Triple-sealed, hermetic 8 stem seals OPTISEAL®

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How you benefit
- Zero dead space
- GMP compatible
- FDA compliant
- 3A sanitary standard (optional)
- Low noise emission
- Optimum CIP conditions
- No sources of infection
- Maintenance without special tools
- Quick and easy disassembly
- Cost-effective plug replacement
- Flexible valve adjustment
- Minimal spare parts required
- Long-term safety
- Maintenance free
- A wide range of connection and housing types
- Quick adjustment to process changes
- Highly cost-effective
- EPDM seals from –40 °C to +135 °C (up to +150 °C over short periods)
- FPM seals from –10 °C to +200 °C (optional)
- Hermetic twin-diaphragm seal
- Additional safety stuffing box
- Hydraulic support for diaphragm (optional)
- Diaphragm breakage monitor
General specifications
Series | 391 |
DN | 15 – 150 |
PN | 10 – 25 |
Housing types | Angular | L | Parabolic plug |
Straight way | BO | Parabolic plug | |
Straight way | BM | Parabolic plug (double guided) | |
3 step | BM | 3-step plug (P3) | |
3 step | M-WM | Flow mixer | |
3 step | T-WM | Flow divider |
Material | 1.4404 (316L) St. Steel (all housing components blasted and post-treated) |
Thread connection 1.4301 (304) St. Steel | |
Housing connections | Thread connections, welded ends, flanged connections, clamp connections, aseptic flanged connections |
Other connection types available on request | |
Piping classes | Metric in accordance with DIN 11850 |
Imperial OD in accordance with ISO2037/BS 4825 Part 1 | |
Imperial IPS in accordance with Schedule 5 | |
Surfaces | Surfaces that come into contact with product: Ra ≤ 0.8 μm; fine-blasted surface |
Plug characteristic | Standard: equal percentage or linear |
Rangeability | 40:1 |
Seat leakage | Metal sealing: class IV (0.01% of kvs) |
Soft sealing: class VI | |
Plug | 1.4571 (316Ti) St. Steel (superfinished; guiding surfaces roller burnished) |
1.4404 (316L) St. Steel | |
Stem seal | EPDM sealing rings; temperature range: –30 to +135 °C; FDA compliant |
Resistance: 2 to 5% resistance to alkaline solutions and acids up to +85 °C | |
Other materials (FPM, HNBR etc.) available on request | |
Options | Sterile lock, diaphragm seal |
Material certificates | Inspection certificate in accordance with EN 10204 / 3.1 |
Material certificate EN 10204 / 2.2 |