Flexible Connectors: Diameter Range 50mm to 2000mm

Component Specifications

Definition

Flexible connectors are engineered components used in industrial ducting systems to absorb vibrations, compensate for thermal expansion/contraction, accommodate misalignment between connected ducts, and reduce noise transmission. They typically consist of a flexible membrane or bellows structure made from durable materials, often reinforced with fabric or metal, and include flanges or connectors for secure attachment to rigid duct sections.

Working Principle

Flexible connectors work by utilizing their elastic or accordion-like structure to deform under mechanical stress, vibration, or thermal changes. This deformation absorbs energy that would otherwise transfer through the ducting system, preventing damage to equipment and reducing noise. They maintain a sealed connection while allowing controlled movement in multiple axes.

Materials

Common materials include: synthetic rubber (EPDM, neoprene, silicone), fabric-reinforced elastomers, stainless steel bellows, aluminum, and composite materials. Reinforcement layers often incorporate polyester, fiberglass, or aramid fibers. Temperature resistance typically ranges from -40°C to +200°C depending on material.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Flange Types	Plain, flanged, or band-clamp connections
Diameter Range	50mm to 2000mm
Pressure Rating	Up to 25 kPa
Temperature Range	-40°C to +200°C
Movement Capability	Axial: ±10mm, Lateral: ±15mm, Angular: ±5°

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 5801, DIN 24194, ASHRAE 120

Parent Products

This component is used in the following industrial products

Ducting System

A network of conduits designed to transport airborne dust and particles from collection points to filtration units within a dust containment system.

View Product Details

Engineering Analysis

Risks & Mitigation

Material degradation from chemical exposure
Fatigue failure from excessive movement
Leakage due to improper installation
Fire hazard if incompatible with system temperatures

FMEA Triads

Trigger: Excessive vibration beyond design limits
Failure: Material fatigue and cracking
Mitigation: Install vibration dampeners upstream, select connectors with higher movement ratings

Trigger: Chemical exposure incompatible with material
Failure: Material degradation and leakage
Mitigation: Use chemically resistant materials (e.g., PTFE-lined), implement regular chemical compatibility checks

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±2mm on diameter dimensions, ±1° on angular alignment

Test Method

Pressure testing per ISO 5801, movement cycle testing, material flammability testing (UL 94)

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Flexible Connectors

Manufacturer profiles associated with Flexible Connectors.

Sourcing Flexible Connectors from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Related Components

Chrome Plating

Hard chrome plating is an electroplating process that deposits a layer of chromium onto metal surfaces to enhance wear resistance, corrosion protection, and reduce friction for hydraulic cylinder piston rods.

Upper Tool (Punch)

Upper Tool (Punch) is the active forming component in metal plate bending machines that applies precise downward force to create bends in sheet metal.

Main Frame

The main frame is the primary structural component of a hydraulic press, providing rigidity and stability to withstand high compressive forces during metal forming operations.

Shaft Bearing

Precision component supporting rotating shafts in vibration motors to reduce friction and maintain alignment.

Frequently Asked Questions

What are the main benefits of using flexible connectors in ducting systems?

Flexible connectors reduce vibration transmission, compensate for thermal expansion, accommodate installation misalignments, decrease noise levels, and prevent stress damage to connected equipment.

How often should flexible connectors be inspected and replaced?

Inspect every 6-12 months for cracks, deformation, or material degradation. Replace every 3-5 years depending on operating conditions, or immediately if visible damage or leakage occurs.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Flexible Connectors