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WFI & PW LOOP LINE PROCESS PIPING
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WFI & PW LOOP LINE PROCESS PIPING
The WFI & PW Loop Line Process Piping system is engineered for the hygienic distribution of Water for Injection (WFI) and Purified Water (PW) across critical production areas. Designed with crevice-free sanitary piping, zero dead-leg fittings, and continuous circulation, the loop maintains stable temperature, flow velocity, and water quality.
Specifications:
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Material: SS 316L Electropolished Tubing
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Surface Finish: Ra ≤ 0.4–0.6 µm internal finish
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Welding: Orbital welding / automatic welding with weld logs
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Design: Zero dead-leg fittings, hygienic bends, tri-clamp or clamp-type connections
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Drainability: 100% self-drainable with proper slope throughout the loop
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Thermal Control: Insulated or heat-traced (for WFI hot loops)
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Flow Velocity: Maintained to avoid microbial growth or stagnation
Applications:
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Distribution of Purified Water (PW) to pharmaceutical production zones
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WFI hot loop for sterile manufacturing & critical cleaning operations
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Cosmetic & personal-care production requiring high-purity utility water
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Sterile formulation, filling, washing & cleaning operations
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Biotechnology labs, R&D centers, and controlled processing areas
Automation:
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PLC/SCADA integration for loop monitoring
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Continuous monitoring of temperature, flow, pressure & conductivity
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Automatic control of heat-tracing/hot water circulation for WFI
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Monitoring of POU usage with valve automation (optional)
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Alarm system for low circulation, temperature deviation & high conductivity
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Data logging for online quality parameters
Documentation:
The WFI & PW Loop Line Process Piping package includes complete engineering documentation such as P&ID, isometrics, weld logs, MOC certificates, and surface-finish reports. FAT/SAT protocols are provided along with IQ/OQ/PQ validation documentation required for pharmaceutical compliance.