Sanitary Three-Piece Square Non-Retention Ball Valve

Hygienic, Non-Retention Valve Solution for Modern Processing Systems

1. Introduction

The sanitary three-piece square non-retention ball valve is designed for hygienic pipeline systems requiring complete drainage, zero fluid retention, and efficient cleanability. Its square port and non-retention ball design eliminate dead zones, ensuring no residual liquids remain after operation. This makes the valve ideal for applications where hygiene, sterility, and contamination prevention are critical, including food, beverage, dairy, pharmaceutical, cosmetic, and biotechnology industries.

Manufactured from premium SS304 or SS316L stainless steel, the valve features a polished interior surface, full-port flow design, and a three-piece body that allows quick disassembly for cleaning and maintenance. The design supports CIP (Clean-in-Place) and SIP (Sterilization-in-Place) procedures, enabling high standards of process hygiene.

2. Product Advantages

2.1 Non-Retention Ball Design

• Eliminates dead zones where fluids can accumulate

• Prevents bacterial growth and cross-contamination

• Ensures complete drainage in hygienic pipelines

2.2 Three-Piece Sanitary Construction

• Quick disassembly of central body for inspection or replacement

• Tool-free maintenance reduces downtime

• Facilitates efficient cleaning and sterilization

2.3 Hygienic Surface Finish

• Polished interior with Ra ≤ 0.8 μm

• Smooth fluid transfer without residue accumulation

• Supports FDA, 3A, and other sanitary standards

2.4 Square Port Full-Bore Design

• Provides minimal pressure drop

• Handles viscous liquids and slurries efficiently

• Reduces flow turbulence, maintaining product quality

2.5 Durable Stainless Steel Construction

• Forged SS304/SS316L ensures corrosion resistance

• Suitable for acidic, alkaline, or high-purity fluids

• Long service life in harsh processing environments

2.6 Versatile Operation

• Compatible with manual, pneumatic, or electric actuators

• Flexible integration into automated or manual production lines

• Adjustable for T-type or L-type flow direction if needed

3. Product Specifications

4. Applications

Sanitary three-piece square non-retention ball valves are ideal for industries demanding hygiene, zero fluid retention, and reliable flow control.

4.1 Food and Beverage

• Dairy milk pipelines

• Juice, beer, and beverage processing

• Sauce, syrup, and condiment production

4.2 Pharmaceutical

• Sterile water distribution

• Liquid medicine and supplement pipelines

• Bioreactor and fermentation lines

4.3 Cosmetic and Personal Care

• Creams, lotions, and gels

• Essential oils and liquid soaps

• Nutraceuticals and high-purity formulations

4.4 Biotechnology

• Cell culture and fermentation systems

• Laboratory and high-purity pipelines

4.5 Purified Water Systems

• RO/UF distribution pipelines

• CIP/SIP loops

• High-purity water distribution for sterile applications

5. Installation Guidelines

5.1 Pre-Installation Checklist

• Confirm valve size, seat material, and flow configuration

• Ensure pipeline is clean and depressurized

• Check for gasket compatibility and clamp alignment

• Verify actuator (manual/pneumatic/electric) if applicable

5.2 Installation Steps

1. Position the valve between two tri-clamp connections.

2. Insert sanitary gaskets between the valve body and end caps.

3. Tighten tri-clamps evenly to prevent leakage.

4. Ensure flow direction aligns with pipeline markings (if applicable).

5. For actuated valves, connect pneumatic or electrical supply per manufacturer instructions.

5.3 Installation Diagram

(Illustration placeholder: A diagram showing three-piece valve assembly with clamps, gaskets, and flow direction markings.)

6. Operation Procedures

6.1 Manual Operation

• Rotate the handle smoothly to open or close

• Avoid sudden rotation to prevent pressure shock

• Confirm full bore alignment for correct flow

6.2 Actuated Operation

• Pneumatic: Ensure air supply and signal compatibility

• Electric: Verify motor connections and limit switch settings

• Monitor for smooth actuation without vibration

6.3 Cleaning Procedures

• CIP (Clean-in-Place): Use warm alkaline or neutral detergents

• SIP (Sterilization-in-Place): Steam sterilization at 121°C–135°C depending on seat material

• Check for complete drainage to prevent residue accumulation

7. Product Advantages in Operation

• Zero Retention Design ensures no fluid remains in valve body

• Three-Piece Construction allows quick cleaning and maintenance

• Full-Bore Square Port reduces pressure loss and prevents clogging

• Polished Interior maintains hygienic standards and prevents contamination

• Durable Materials withstand aggressive fluids, temperature, and pressure variations

8. After-Sales Service

8.1 Technical Support

• Installation guidance for manual and actuated valves

• Flow configuration recommendations (T-type/L-type)

• Troubleshooting for leaks, actuator issues, and flow irregularities

8.2 Maintenance Assistance

• Seat and gasket replacement

• Ball and stem inspection and polishing

• Reassembly and clamp torque verification

8.3 Documentation

• Material certificates (EN10204 3.1)

• Pressure test and inspection reports

• CIP/SIP cleaning procedures

• Operation manuals and technical drawings

8.4 Warranty

• Standard 12–24 months depending on contract

• Covers material defects and manufacturing faults

• Optional extended support for large-scale projects

9. Troubleshooting Guide

10. Advantages Over Traditional Valves

• Zero retention prevents microbial growth and contamination

• Rapid maintenance due to three-piece design

• Durable and hygienic for high-purity applications

• Full-bore square port supports viscous fluids and high flow

• Flexible operation compatible with automation

• Sanitary compliance with FDA, 3A, CE, ISO standards

11. Conclusion

The sanitary three-piece square non-retention ball valve is an essential component for modern hygienic processing lines, combining safety, efficiency, and durability. Its non-retention design guarantees complete drainage, while the three-piece construction allows fast cleaning, inspection, and maintenance. Polished stainless-steel surfaces, full-bore square ports, and reliable sealing make it suitable for food, beverage, pharmaceutical, cosmetic, biotechnology, and high-purity water systems. With proper installation, operation, and preventive maintenance, this valve ensures long-term performance, sanitary compliance, and operational efficiency.