INDUSTRY COMPONENT

Sanitary Fittings (Tri-Clamp)

Tri-Clamp sanitary fittings are aseptic connectors used in WFI distribution manifolds for pharmaceutical and food processing.

Component Specifications

Definition
Tri-Clamp sanitary fittings are standardized clamp-type connectors designed for hygienic fluid transfer systems. They feature a tri-lobed clamp mechanism that compresses a gasket between two ferrules, creating a leak-proof, crevice-free seal suitable for clean-in-place (CIP) and steam-in-place (SIP) processes. In WFI (Water for Injection) distribution manifolds, these fittings ensure sterile connections that prevent microbial contamination and maintain water purity.
Working Principle
The Tri-Clamp system uses a three-segment clamp that applies uniform radial pressure when tightened, compressing an elastomeric gasket between two ferrules with standardized face profiles. This creates a hygienic seal with no dead spaces, allowing for easy disassembly and reassembly without tools (using a wing nut or bolt clamp). The design prevents product entrapment and facilitates thorough cleaning.
Materials
316L stainless steel (ASTM A270), electropolished finish (Ra ≤ 0.8 μm), with EPDM, silicone, or PTFE gaskets meeting FDA and USP Class VI standards.
Technical Parameters
  • Size Range 1/2" to 4" (DN15 to DN100)
  • Gasket Type Standard EPDM for SIP/CIP
  • Surface Finish ≤ 0.8 μm Ra (electropolished)
  • Connection Type Tri-Clamp (TC) per ASME BPE
  • Pressure Rating 10 bar at 20°C
  • Temperature Range -20°C to 150°C (depending on gasket)
Standards
ISO 2852, ASME BPE, DIN 32676, 3-A Sanitary Standards

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Sanitary Fittings (Tri-Clamp).

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Gasket failure leading to contamination
  • Improper clamping causing leaks
  • Material incompatibility with process fluids
FMEA Triads
Trigger: Gasket degradation due to chemical exposure or thermal cycling
Failure: Leakage and microbial contamination of WFI
Mitigation: Regular gasket inspection/replacement; use chemically resistant gasket materials; implement preventive maintenance schedules.
Trigger: Incorrect clamp torque during assembly
Failure: Uneven sealing leading to leaks or gasket extrusion
Mitigation: Use calibrated torque tools; train personnel on proper assembly procedures; implement visual inspection checkpoints.

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Dimensional tolerances per ASME BPE: ferrule OD ±0.25 mm, face flatness ≤ 0.05 mm
Test Method
Pressure testing per ASME B31.3; surface roughness verified with profilometer; material certification to ASTM A270; cleanability testing per EHEDG guidelines.

Buyer Feedback

★★★★☆ 4.6 / 5.0 (28 reviews)

"The technical documentation for this Sanitary Fittings (Tri-Clamp) is very thorough, especially regarding technical reliability."

"Reliable performance in harsh Chemical Manufacturing environments. No issues with the Sanitary Fittings (Tri-Clamp) so far."

"Testing the Sanitary Fittings (Tri-Clamp) now; the technical reliability results are within 1% of the laboratory datasheet."

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Frequently Asked Questions

Why are Tri-Clamp fittings preferred in WFI systems?

They provide crevice-free, sterile connections that prevent microbial growth, support CIP/SIP processes, and meet stringent purity requirements for Water for Injection.

What materials are used for gaskets in sanitary Tri-Clamp fittings?

Common gasket materials include EPDM (for steam sterilization), silicone (for high temperature), and PTFE (for chemical resistance), all compliant with FDA and USP Class VI.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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