Stainless Steel Bending Clamp Aseptic Discharge tank Bottom Valve
Grade: SS304/SS316L.
Standard: DIN, SMS, 3A.
Working pressure: 0.1–1.6 MPa.
Test pressure: 2.4 MPa.
Temperature Range: -20°C to 180°C.
PTFE seals: chemical resistance.
Viton seals: high-temperature sealing stability.

TheStainless Steel Bending Clamp Aseptic Discharge tank Bottom Valve is a specialized valve designed Aseptic tank bottom valve for discharging and emptying hygienic storage tanks. It adopts a three-piece split construction with a dead-leg-free tank bottom sealing design, and is actuated either by a manual handwheel or a pneumatic actuator. It is typically installed at critical locations at the bottom of hygienic storage tanks in industries such as pharmaceuticals, food, and bioengineering. It is used for tank discharging, emptying, cleaning, and isolation switching, and can be integrated with CIP/SIP cleaning and sterilization systems.
Connection types include clamp, weld, and flange. Sealing materials include EPDM, PTFE, silicone rubber, etc. Seal configurations include single diaphragm and double diaphragm. It is widely used in pharmaceuticals, food and beverage, bioengineering, cosmetics, and other industries, ensuring a sterile, residue-free, and safe tank discharge process. hygienic three-piece tank bottom valves utilize a three-piece quick-disassembly construction with internal and external mirror electrolytic polishing.Made of high-quality 316L stainless steel with food-grade composite diaphragms, their sealing performance approaches that of imported brands. Compared to ordinary domestic tank bottom valves, they offer more reliable sealing, residue-free operation, and more convenient disassembly and cleaning. They also provide high cost-effectiveness, fast delivery, and convenient after-sales service. They comply with FDA, 3A, CE, and other hygienic certifications, making them suitable for tank applications in sterile conditions such as pharmaceuticals and food.
Manual Version: The hygienic three-piece manual tank bottom valve features a three-piece split construction, making disassembly and cleaning more convenient and meeting CIP/SIP cleaning requirements. Manual operation is simple and reliable, with moderate cost, suitable for most tanks.The seal and flow path are dead-leg-free, ensuring thorough discharge with no residue and preventing product contamination. Installation and maintenance do not require complete disassembly, making it suitable for hygienic applications in food, pharmaceutical, and cosmetic industries. Compared to diaphragm valves, it offers longer service life and better temperature and pressure resistance. Compared to conventional discharge valves, it provides superior sealing and cleanliness. Compared to welded valves, it is easier to service, offering outstanding overall cost-effectiveness and practicality.
Pneumatic Version: The hygienic three-piece pneumatic tank bottom valve adopts a three-piece split construction with a diaphragm sealing design, driven by a pneumatic actuator, suitable for installation at the bottom of various hygienic storage tanks. It features a full-bore spherical structure with a dead-leg-free flow path. Compared to discharge valves and globe valves, media flow is smoother and residue-free, facilitating easier CIP/SIP cleaning and sterilization. Compared to diaphragm valves, it offers more stable sealing performance, longer wear resistance, and more efficient pneumatic actuation with lighter operation. It can be integrated into automated control systems for remote operation. The spherical structure also prevents valve core sticking, making it suitable for high-viscosity media or those containing particles.
Accessories
- Body Material:304/316L Stainless Steel
- Disc Material:Stainless Steel (316L)
- Diaphragm Material:EPDM, Silicone Rubber, or PTFE (meeting food/pharmaceuticalhygiene requirements; double diaphragm optional)
- Stem Material:304/316L Stainless Steel
- Actuator:Manual Handwheel (with optional scale, locking device) /Pneumatic Actuator (with optional solenoid valve, limit switch,emergency shut-off device, etc.)
- Structure Type:Manual/Pneumatic Clamp/Weld/Flange Type, Three-PieceHygienic Tank Bottom Valve Structure
- Pressure Rating:0.1 -1.6 MPa (Pneumatic version typically 0.1 - 1.0 MPa, high-pressure optional)
- Main Function:Tank bottom discharging and emptying control; compatiblewith CIP/SIP cleaning; ensures tank cleanliness and residue-free operation
- Applicable Grade:Hygienic Grade
- Standards:DIN, SMS, 3A, ISO, IDF, GB
- Hygiene & Safety Grade:GMP, FDA, 3A hygiene standards
- Installation Orientation:Vertical installation (specifically for tank bottom; flush withtank bottom / conforms to tank bottom curvature)
- Customization:Size, pressure, connection type, sealing material customizable
Digital advantages
- Hygienic Compliance: Valve body made of 316L stainless steel; internal and external mirror polishing precision up to Ra≤0.4μm; seals comply with FDA standards; products meet GMP, 3‑A, and CE certification requirements; can be directly used for tank applications in export-grade hygienic scenarios such as food and pharmaceuticals.
- Precise and Stable Control:
- Manual Version: Equipped with a precision manual lifting mechanism, providing high on/off control precision; flush tank bottom dead-leg-free sealing design; leakage rate ≤1×10⁻⁸ mbar·l/s, meeting ISO 5208 A-level sealing standard; residue-free discharge; stable and reliable operation.
- Pneumatic Version: Equipped with a fast-response pneumatic actuator; response time ≤0.3 seconds; control precision ±1%; dead-leg-free tank bottom flow path design; leakage rate ≤1×10⁻⁸ mbar·l/s, meeting ISO 5208 A-level sealing standard; residue-free discharge.
- Long Service Life, Low Maintenance: Uses EPDM/PTFE composite diaphragm; temperature range -20~150℃; fatigue resistance cycles ≥10⁶; three-piece quick-disassembly design / stuffing-box-free construction effectively reduces wear; maintenance interval extended to 2 years; helps customers reduce annual usage costs by approximately 40%.
- Efficient Installation and Adaptability: Supports multiple connection types: clamp, weld, flange; manual version fits DN25-DN150, pneumatic version fits DN15-DN150 tank sizes; modular three-piece construction significantly improves assembly and cleaning efficiency; manual version disassembly time reduced by 60%, pneumatic version disassembly and installation time reduced by 50%; compatible with various hygienic tank systems and mainstream industrial automation control systems.
- Safety and Environmental Friendliness: Fully enclosed sealing design; no media leakage; quiet operation or operational noise ≤65dB(A); products are ATEX explosion-proof certified; comply with ISO 14001 environmental system requirements; pneumatic version can be optionally equipped with an emergency shut-off device; can be safely used in Zone 1/2 hazardous areas, enhancing production safety.

- Raw Material:
- F: Valve body made of 100% virgin 304/316L stainless steel; Seals made of food-gradePTFE/EPDM/silicone rubber (fluororubber optional)
- A:: Excellent corrosion and temperature resistance; No material contamination; Dead-leg-freetank bottom sealing; Meets food, beverage, and pharmaceutical hygiene standards
- B: Suitable for tank applications in food, beverage, and pharmaceutical industries; Preventsmedia residue and contamination risks; Ensures product purity and production compliance
- Processing Technology:
- F: Full CNC precision machining; Three-piece forged construction; Internal and external mirrorpolishing; Integrated machining of tank bottom sealing surface
- A: No media residue; High structural strength; Stable dimensional precision; High sealingsurface fit
- B: Ensures thorough residue-free discharge; Prevents pipeline blockage and cross-contamination; Extends seal service life; Reduces maintenance costs
- Structure Feature:
- F: ) Manual Version: Strict dimensional control of seals; Precision-machined stem; Manualhandwheel with scale indication; Dedicated seal ring for clamp connections; Pneumatic Version: Strict dimensional control; Precision-ground sealing surfaces; Preciselymatched pneumatic actuator; Double-layer composite diaphragm design
- A: Perfect match with valve body/tank; Precise on/off control; Easy installation; Stable sealingperformance; Fast actuator response
- B: Reduces rework costs; Ensures long-term reliable operation; Enhances tank system stabilityand hygiene level; Enables precise discharge control
- Core Accessory Feature:
- F: Manual Version: Strict dimensional control of seals; Precision-machined stem; Manualhandwheel with scale indication; Dedicated seal ring for clamp connections;Pneumatic Version: Strict dimensional control; Precision-ground sealing surfaces; Preciselymatched pneumatic actuator; Double-layer composite diaphragm design
- A: Perfect match with valve body/tank; Precise on/off control; Easy installation; Stable sealingperformance; Fast actuator response
- B:Reduces rework costs; Ensures long-term reliable operation; Enhances tank system stabilityand hygiene level; Enables precise discharge control
- Seal Ring Feature:
- F: Manual Version: Manual handwheel drive; Compatible with position indicator, locking device,and other accessories; Flush diaphragm-to-tank-bottom sealing design;Pneumatic Version: Pneumatic drive; Compatible with solenoid valve, positioner, emergencyshut-off device, and other accessories; Precise diaphragm-to-tank-bottom curvature fit
- A: Precise discharge control; Light operation / Fast response; Supports remote operation;Reliable emergency shut-off; Supports CIP/SIP cleaning
- B:Optimizes tank operation convenience and automation level; Reduces manual laborintensity; Ensures consistency of hygienic production conditions; Meets aseptic productionrequirements and enhances operational safety



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