Sanitary Clamp Butterfly Valve for Rotary Vacuum Filter
The 304 stainless steel sanitary clamp butterfly valve is one of the core control components for vacuum drum filters (a solid-liquid separation device commonly used in chemical, food, environmental protection, and other industries).
Its valve body, disc, and stem are all made of 304 stainless steel (316L is available for premium models), featuring rust resistance, corrosion resistance, and easy cleaning—making it suitable for both hygienic and industrial environments of vacuum drum filters.
It uses a clamp-type (also called “quick-connect/TC-type”) connection, which allows for tool-free, fast assembly and disassembly. This simplifies pipeline maintenance and cleaning for vacuum drum filters.
Selection parameters
| Parameter | Specifications |
|---|---|
| Valve Body Material | 304 Stainless Steel (316L Stainless Steel optional) |
| Seal Material | EPDM (standard), FPM (fluororubber), Silicone (food-grade) |
| Nominal Size | DN15 (1/2″), DN20 (3/4″), DN25 (1″), DN32 (1.25″), DN40 (1.5″), DN50 (2″) |
| Applicable Vacuum Range | 10⁵Pa (atmospheric) to 1.3×10⁻⁴Pa (high vacuum) |
| Operating Temperature Range | -30°C to 150°C (based on EPDM seals) |
| Operating Pressure Range | 0 to 10 bar (gauge pressure) |
| Connection Standard | ISO 2852 (TC clamp type) |
| Compatible Vacuum Drum Filter Models | Fits all models produced by Yinuo |
| Actuation Type | Manual lever (standard), Pneumatic/Electric actuation (optional) |
core function
The core principle of a vacuum drum filter lies in negative pressure adsorption filtration, and the functions of this butterfly valve are as follows:
- Pipeline On/Off Control: Rapidly opens or closes the filter’s feed/discharge pipelines, and adjusts material flow in sync with the drum’s rotation cycle.
- Vacuum Pressure Maintenance: Stabilizes the vacuum environment inside the pipelines when closed, preventing outside air infiltration that could compromise filtration efficiency.
- Easy Cleaning & MaintenanceIts clamp-type design enables tool-free disassembly for cleaning, meeting the filter’s periodic cleaning requirements.
Features
- User-Friendly OperationEquipped with a manual lever as standard (pneumatic/electric actuation available as an upgrade). A 90° rotation is all it takes to fully open or close the valve.
- Hygienic DesignAll wetted parts feature a mirror-polished finish (Ra ≤ 0.8μm) with no dead corners, making it ideal for filtration applications in the food, pharmaceutical, and other hygiene-sensitive industries.
- Superior DurabilityConstructed from 304 stainless steel with high-quality seals, it delivers a service life of over 100,000 opening/closing cycles.
