Flush Bottom Valve – Precision Draining Valve for Vessels
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Flush Bottom Valve – Precision Draining Valve for Vessels

Manufacturer: Neza Engineering Co.

Technical Specifications of Flush Bottom Valve

ParameterSpecification
Product NameFlush Bottom Valve
MaterialStainless Steel SS 304 / SS 316 / SS 316L
Size Range (OD)1″ to 4″
End ConnectionTC End / Flanged / Socket Weld / Butt Weld
Operation TypeManual / Pneumatic / Hydraulic
Mounting TypeTank / Reactor / Vessel Mounted
Body TypeAngle Type / Tank Bottom Type
Sealing MaterialPTFE / EPDM / Silicone
Pressure RatingUp to 10 bar
Temperature Range-10°C to +150°C
Surface FinishMirror / Electro Polished
LeakageZero Leakage Seat Design
OperationLinear / Rotary Actuated (on demand)
ApplicationDraining tanks, reactors, filters
ManufacturerNeza Engineering Co.

Product Overview

The Flush Bottom Valve by Neza Engineering Co. is designed for complete and leak-free draining of tanks, vessels, and reactors without any dead space. Its unique bottom-mounted design ensures zero hold-up and efficient flow control of fluids, slurries, or viscous materials. It plays a critical role in pharmaceutical, chemical, food processing, and cosmetic industries where product purity, hygiene, and complete drainage are essential.

Flush bottom valves are installed at the bottom outlet of tanks and vessels to facilitate complete discharge, preventing product wastage, contamination, and manual handling.

Key Features

1. Zero Hold-Up Drainage

The most significant feature is complete vessel emptying. The seat is flush with the tank bottom or outlet line, ensuring no residue is left behind—essential for sanitary applications.

2. Sanitary and GMP Design

All internal surfaces are crevice-free and polished, maintaining CIP/SIP compliance for pharmaceutical and food applications. Smooth bore and precision seat design eliminate contamination risks.

3. High-Performance Sealing

Fitted with high-grade PTFE, EPDM, or Silicone seats, the valve guarantees zero leakage under high pressure and temperature. The seals are suitable for sterile and hygienic environments.

4. Multiple Actuation Options

Available with manual handwheel, pneumatic actuator, or hydraulic piston for remote or automatic operation, especially in large vessels or hazardous environments.

5. Rugged Construction

Made using SS 316L or SS 304, the valve resists corrosion, cleaning chemicals, and pressure cycling. The robust body ensures long service life and minimal maintenance.

Types of Flush Bottom Valves We Offer

  1. Tank Bottom Valve (Bottom Entry)
    Designed to be mounted directly at the bottom of tanks or reactors for draining liquids and slurries.

  2. Angle Type Flush Valve (Side Entry)
    Mounted on the side or bottom with an angular outlet for directional discharge.

  3. Piston Type Flush Valve
    Piston moves linearly to open or close the valve; ideal for clean and smooth operation.

  4. Plug Type Flush Valve
    Ideal for thicker fluids or pastes; allows direct discharge with minimal blockages.

Applications of Flush Bottom Valve

  • Pharmaceutical Reactors and Crystallizers: For sterile and zero-hold up discharges.

  • Food & Beverage Storage Tanks: Handling of juices, syrups, sauces, and creams.

  • Chemical Reactors: Discharge of acids, solvents, and viscous compounds.

  • Biotech & Cosmetic Manufacturing: Creams, gels, and ointments that require clean tank-emptying.

Advantages of Using Neza Flush Bottom Valve

  • ✅ 100% drainability ensures product yield and reduces wastage

  • ✅ Compact and hygienic construction compliant with FDA & GMP standards

  • ✅ Easy to clean and dismantle for inspection

  • ✅ Compatible with SIP and CIP cleaning cycles

  • ✅ Rugged and long-lasting performance even under frequent operation

  • ✅ Designed, manufactured, and tested by Neza Engineering Co. with in-house QC systems

Installation & Maintenance Notes

  • Ensure proper flush alignment with the tank bottom.

  • Regular inspection of sealing elements is recommended in high-cycle applications.

  • Welding and assembly must be done by certified personnel to maintain hygiene standards.

  • For automated systems, pneumatic/hydraulic lines must be checked regularly.

Customization Available

Neza Engineering Co. offers custom manufacturing of flush bottom valves to suit your tank design and process requirements. Whether you require a special size, actuator type, flange standard, or seat material, we can provide the right solution.

Trusted by Leading Manufacturers

Our flush bottom valves are trusted by pharma plants, food processors, dairy equipment makers, and chemical industries for their hygienic design, durability, and zero-leakage assurance.

Contact Us for Bulk Orders, Custom Designs & Technical Drawings

Phone / WhatsApp: +91 7891213773
Email: info@neza.co.in
Website: www.neza.co.in

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