- Monday - Friday 09:00 am - 18:30 pm
- +91 90821 76755
PW & WFI Storage Systems
Storage & Distribution System PW / WFI Loops
Hygienic continuous re-circulation for pharmaceutical water systems
Maintaining water quality from generation to point-of-use with GMP compliance
Product Overview
The GM Water PW & WFI Storage and Distribution System is a critical component of pharmaceutical water systems, designed to safely store and continuously circulate high-purity water while maintaining its chemical and microbiological quality in full compliance with GMP, WHO, and global pharmacopeia standards.
The system consists of a hygienically designed storage tank and a continuous re-circulation distribution loop, ensuring that purified water is always available at the required points of use with consistent quality. The entire system is engineered to prevent stagnation, microbial growth, and contamination, which are key risks in pharmaceutical water handling.
PW & WFI storage tanks are constructed from SS 316L with sanitary internal finishes, designed with features such as spray balls for effective CIP, hydrophobic vent filters, level transmitters, and temperature control provisions.
Engineering Excellence
For WFI systems, the tanks and distribution loop are designed for continuous hot water circulation and periodic sanitization to ensure maximum microbial control. The distribution loop is fabricated using SS 316L hygienic piping with orbital welding, ensuring smooth internal surfaces, minimal dead legs, and excellent drain-ability.
The system is designed with a constant re-circulation flow velocity to prevent biofilm formation and maintain uniform water quality across all user points.
The entire PW & WFI storage and distribution system is fully automated and PLC–HMI controlled, with real-time monitoring of crucial parameters such as conductivity, temperature, pressure, flow rate, and TOC. An optional 21 CFR Part 11 compliant automation package is available for validated pharmaceutical environments.
With robust engineering, hygienic construction, and intelligent automation, GM Water PW & WFI Storage and Distribution Systems ensure:
- Consistent water quality at all points of use
- High microbiological safety through continuous circulation
- Audit readiness with comprehensive documentation
- Long-term operational reliability
Key Features
Hygienic Continuous Re-circulation Design
Engineered to maintain constant circulation, preventing stagnation and supporting microbiological control throughout the loop.
GMP-Compliant SS 316L Construction
All product contact surfaces fabricated in SS 316L with orbital welding and sanitary fittings to minimize contamination risk.
Velocity-Based Recirculation Control
Loop velocities are designed and maintained to ensure turbulent flow, supporting consistent water quality and system hygiene.
Precision Storage Tank Design
Hygienically designed storage tanks with proper vent filtration, spray devices, and drainability to maintain system integrity.
PLC-Based Automation & Control
Automated operation with alarms, interlocks, and trend logging to support controlled and repeatable system performance. Real-time measurement of conductivity and TOC at critical locations.
Hot Water, Ozone and Pure Steam Sanitizable
Designed to support validated sanitization strategies for effective microbial control and long-term reliability.
21 CFR Part 11–Ready Data Integrity
Optional automation package available to support electronic records, audit trails, and validated pharmaceutical environments.
Real-Time Quality Monitoring
Continuous monitoring of conductivity, TOC, temperature, pressure, and flow rate at critical locations for quality verification.
System in Action
Distribution Systems in Action
Watch our PW and WFI distribution systems in operation
PW Distribution Skid
Purified water storage and distribution loop in operation
WFI Distribution Skid
Water for injection distribution system demonstration
Technical Specifications
| Tank Construction | SS 316L with sanitary internal finish |
| Tank Features | Spray balls, hydrophobic vent filters, level transmitters |
| Piping Material | SS 316L hygienic piping with orbital welding |
| Loop Velocity | 1-2 m/s (turbulent flow maintained) |
| WFI Temperature | Hot circulation at 80-85°C |
| Sanitization | Hot water, Ozone, Pure steam |
| Monitoring | Conductivity, TOC, temperature, pressure, flow rate |
| Automation | PLC + HMI with SCADA ready |
| Compliance | GMP, WHO, 21 CFR Part 11 optional |
| Documentation | DQ, IQ, OQ support included |
For Custom Specifications do get in touch with us at support@gmwater.in
Distribution Loop Flow
Continuous re-circulation for consistent water quality
Storage Tank
Hygienic SS 316L tank with spray balls & vent filters
Recirculation Pump
Maintains constant flow velocity
Distribution Loop
Orbital welded piping to user points
User Points
Controlled delivery at each location
Return to Tank
Continuous loop recirculation
Key Benefits
- Consistent Water Quality
Maintains chemical and microbiological quality from storage to all points of use
- Microbial Safety
Prevents stagnation, biofilm formation, and contamination through continuous circulation
- Audit Readiness
Complete documentation and real-time monitoring for regulatory compliance
- Long-term Reliability
Robust engineering and intelligent automation ensure operational reliability
Ready to Discuss Your Storage & Distribution Requirements?
Ensure consistent water quality at every point of use with our hygienic distribution systems