Bottom drain valve
Bottom drain valve
Bottom drain valve
Bottom drain valve
Bottom drain valve

Stainless Steel Manual Ball Aseptic tank Bottom drain valve

JN-STBBV-23 1005-1
Size: DN25–DN150.
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: corrosion resistance.
Viton seals: high-temperature sealing reliability
Quantity:
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Stainless Steel Manual Ball Aseptic tank Bottom drain valve
 
TheStainless Steel Manual Ball Aseptic tank Bottom drain valve is a specialized valve designed for bottom discharge and unloading of materials from sanitary storage tanks. It features a spherical valve core structure and a dead-angle-free sealing design, and is driven by a manual disc or pneumatic actuator. It is compatible with various sanitary storage tank equipment. It is commonly installed at critical locations on the bottom of storage tanks in the pharmaceutical, food and beverage, and bioengineering industries for material discharge, unloading, cleaning, and isolation switching. It can be used in conjunction with CIP/SIP online cleaning and sterilization systems.
Based on connection methods, it can be divided into quick-connect, welded, and flanged types; sealing materials include EPDM, PTFE, and silicone rubber; sealing forms include single seal and double seal. It is widely used in sanitary production fields such as pharmaceuticals, food and beverage, bioengineering, and cosmetics to ensure sterility, residue-free operation, and production safety during the tank discharge process.
 

Manual Version:The Ball tank bottom valve mainly consists of a spherical valve core/body, manual handwheel, stem, seals, bearings, and clamp/weld/flange connections. By rotating the manual handwheel, the stem transmits motion, causing the spherical valve core to rotate or lift, thereby opening, closing, or regulating the flow path at the tank bottom. The precise fit between the spherical valve core and the seal ensures reliable sealing. The sealing structure completely isolates the media from external actuating components, ensuring hygienic safety during discharge and preventing cross-contamination.

Pneumatic Version: The valve mainly consists of a spherical body, pneumatic actuator, stem, ball seals, seats, and optional valve position feedback or sampling ports. Compressed air drives the pneumatic actuator, which moves the stem and ball to open or close the flow path for media discharge.The seals isolate the media from the actuating components. An optional manual override provides operational flexibility for different production needs, ensuring hygiene and flexibility.

 

Accessories

 Component & Material Table
  • Valve Body & Ball：304/316L Stainless Steel 
  • Sealing Material：EPDM, Silicone Rubber, or PTFE (meetingfood/pharmaceutical hygiene requirements)
  • Stem Material：Stainless Steel (304/316L)
  • Actuator：Manual Handwheel (with optional scale dial,locking device)/ Pneumatic Actuator (withoptional solenoid valve, limit switch, manualoverride)
  • Connection End Material：Stainless Steel (304/316L)
Product Parameter Details
  • Structure Type：Manual/Pneumatic Clamp/Weld/Flange Type,Hygienic Spherical Tank Bottom Valve Structure
  • Pressure Range：0.1 - 1.6 MPa (High-pressure version optional)
  • Main Function：Media discharge, emptying, flow regulation attank bottom; compatible with CIP/SIP cleaning;ensures clean, residue-free tank discharge
  • Applicable Grade：Hygienic Grade
  • Standards：DIN, SMS, 3A, ISO, IDF, ASME
  • Hygiene & Safety Grade：GMP, FDA, 3A hygiene standards; somepneumatic models comply with ATEX explosion-proof standards
  • Installation Orientation：Vertical installation (specifically for tank bottom)
  • Customization：Size, pressure, connection type, sealing materialcustomizable

Digital advantages

  • High Hygienic Compliance: Valve body and core made of 316L stainless steel; internal mirror polishing Ra ≤ 0.4μm; seals comply with FDA standards; products meet GMP, 3A, CE certifications; directly usable in export-oriented hygienic tank systems for food and pharmaceutical applications.
  • Residue-Free Discharge: Dead-leg-free spherical flow path design; manual version suitable for high-viscosity or particle-containing media; pneumatic version ensures discharge residue ≤ 0.05ml; cleaning success rate 100%; meets GMP aseptic production requirements.
  • Precise and Stable Control: Precision-machined spherical core and seal cooperation; high sealing precision; leakage rate ≤ 1×10⁻⁸ mbar·l/s; meets ISO 5208 A-level sealing standard; manual version features precise scale dial with flow regulation accuracy of ±2%; pneumatic version response time ≤ 0.4 seconds; compatible with mainstream industrial automation control systems.
  • Long Service Life, Low Maintenance: Utilizes EPDM/PTFE composite seals; temperature range -20~150℃; fatigue-resistant cycles ≥ 10⁶; stuffing-box-free design reduces wear and leakage; maintenance interval extended to 3 years; helps customers reduce annual usage costs by approximately 45%.
  • Efficient Installation and Adaptability: Supports multiple connection types: clamp, weld, flange; manual version fits DN25-DN200; pneumatic version fits DN20-DN150 tank sizes; modular design increases assembly efficiency; installation time reduced by 60%; compatible with various hygienic tank and process piping systems.
  • Greater Operational Flexibility: Manual version features low operating torque, smooth opening/closing; pneumatic version supports dual operation modes (pneumatic + manual), suitable for automated production and emergency operations.
  • Safety and Environmental Friendliness: Fully enclosed sealing design; no media leakage; quiet operation; meets ISO 14001 environmental system requirements; safe for use in various hygienic production areas; meets aseptic production environment requirements.
Stainless Steel Manual Ball Aseptic tank Bottom drain valve
 
Feature (F)、Advantage (A)、Benefit (B)
  1. Raw Material:
  • F: : Valve body and core made of 100% virgin 304/316L stainless steel; Sealsmade of food-grade PTFE/EPDM/silicone rubber (fluororubber optional)
  • A:Excellent corrosion and wear resistance; No material contamination; Meetsfood, beverage, and pharmaceutical hygiene standards
  • B: Suitable for storage and discharge of various acid/alkali, food-grade, andpharmaceutical-grade media; Eliminates risk of media contamination; Ensuresproduction compliance and product purity
  1. Processing Technology:
  • F: Full CNC precision machining; Integrally forged spherical valve core; Mirrorpolishing of valve body interior and core surface
  • A:  Dead-leg-free flow path, no media residue; High structural strength, strongimpact resistance; High dimensional precision, good assembly fit
  • B: Reduces media discharge resistance and cleaning costs; Prevents valvebody deformation and leakage; Reduces installation fit issues, extends valveservice life
  1. Structure Feature:
  • F: Dead-leg-free spherical valve core design; Vertical mounting structurededicated for tank bottoms; Smooth transition at connections
  • A: Excellent sealing performance; High fit with tank bottom during installation;No leakage, no residue; Compatible with CIP/SIP cleaning
  • B:  Improves cleaning efficiency, reduces downtime; Adapts to various hygienictank process layouts; Reduces risk of operational contamination
  1. Core Accessory Feature:
  • F: PPrecision-machined stem; Precision-molded seals; Standardized machiningof connection ends
  • A: Perfect match with tanks and pipelines; Smooth and easy operation; Stableand long-lasting sealing performance
  • B:Reduces installation rework costs; Ensures long-term reliable operation;Enhances overall hygiene level of the tank system
  1. Seal Ring Feature:
  • F: Manual Version: Manual handwheel drive; can be equipped with scale dial,valve locking device; precise flow regulation; low operating torque; allows valveposition locking
  • A:Pneumatic Version: Primarily pneumatic drive with manual emergencyoverride; Quick-change clamp-style seal design; Compatible with accessorieslike solenoid valves, positioners; supports remote control and automationintegration
  • B:Meets various process flow requirements; Reduces manual labor intensity and maintenance downtime; Improves production automation and safety
 
Stainless Steel Manual Ball Aseptic tank Bottom drain valve
 
Maximum Flow Rate：According to size (DN25-DN200)，According to size (DN20-DN150)
Maximum Pressure：16bar (230PSI)/ 25bar(optional)，150PSI (10bar)/232PSI(16bar) (optional)
Operation Mode：Manual handwheel operation，Pneumatic actuator (main),manual handwheel(emergency)
Body Material：AISI 304 (1.4301), AISI 316L(1.4404)，AISI 304 (1.4301), AISI 316L(1.4404)
Core Structure：Ball type spool structure (nodead angle)，Spherical type (tank bottomexclusive)
Sealing Form：Single sealEPDM/PTFE/silicone(standard), double seal(option)，Single seal EPDM/PTFE(standard), double seal(option)
Handwheel Type：Standard stainless steelhandwheel, ergonomic plastichandwheel (option)，Standard stainless steelhandwheel, ergonomic plastichandwheel (option)
 
 
 
 

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