Overview

The document details the specifications, construction, and applications of the P-line heat exchangers by Secespol, version 2.17. These heat exchangers are designed primarily for pharmaceutical and food industries, ensuring compliance with stringent hygiene and safety standards.

Specifications

• Types and Configurations: Available in one-pass (1P), two-pass (2P), and four-pass (4P) flow types.
• Materials: Constructed from stainless steel AISI 316L / 1.4404 with electropolished internal surfaces (Ra ≤ 0.5 µm) to minimize microbial growth.
• Tube Details: Straight seamless tubes with 8 mm (0.3 in) diameter, polished internally and certified.
• Gaskets: Made from Viton or silicone for clean media contact, certified to 3-A and FDA standards; non-contact gaskets use EPDM or NBR.
• Connections: Tube side uses tri-clamp sanitary connections (DIN 32676 standard, optional ASME BPE or SMS 3017); shell side uses flat flanges (EN 1092-1, optional ASME B 16.5).
• Dimensions and Capacities: Multiple models with varying tube side capacities, weights, and dimensions are listed, supporting a range of flow rates and heat exchange areas.

Working Parameters

• Full compliance with FDA, cGMP, and 3-A sanitary standards.
• Operating pressures up to 1.6 MPa (232 psi) and temperatures up to 203°C (397°F) depending on gasket material.
• Media compatibility: shell side typically water or glycol; tube side for process liquids or products.
• Designed for both vertical and horizontal mounting.
• Double tube sheet construction prevents cross-contamination even in case of leaks.
• Tube/product side is fully drainable to avoid residue retention.

Construction and Design Advantages

• Double tube sheet ensures total media separation and prevents cross-contamination.
• Dismountable design without dead spots minimizes microbial growth risk.
• Electropolished surfaces and certified materials ensure hygienic operation and long-term durability.
• Self-cleaning ability supported by appropriate flow velocities.
• Connections and gasket materials selected for hygienic integrity and compliance with industry standards.

Applications

• Pharmaceutical Industry: Clean steam generation, water for injection (WFI) systems, heating and cooling of blood and pharmaceutical substances.
• Food and Dairy Industry: Handling of juices, sauces, oils, syrups, brewery processes, chocolate, viscous products, and pasteurization.

Technical Drawing and Flow Connections

• Standard connection locations: K4/K1 for tube side (hygienic), K2/K3 for shell side (non-hygienic).
• Flow types indicated as 1P, 2P, or 4P corresponding to the number of passes.

Summary of Critical Parameters

Note: The table summarizes key models illustrating the range of sizes, weights, and heat exchange areas available.

Certifications and Standards

• Manufactured in accordance with PED, ASME, 3-A Sanitary Standard, EAC, and China ML.
• Gasket materials certified to 3-A and FDA standards.

Conclusion

The P-line heat exchangers by Secespol offer a hygienic, reliable, and versatile solution for heat exchange in pharmaceutical and food processing applications. Their design prioritizes contamination prevention, ease of cleaning, and compliance with international sanitary standards, making them suitable for critical processes requiring high purity and safety.