Structured Manufacturing Data (2026)

Float Assembly

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Float Assembly used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Float Assembly is characterized by the integration of Float Body and Stem/Rod. In industrial production environments, manufacturers listed on CNFX commonly emphasize Stainless Steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A mechanical assembly containing a buoyant float that moves with liquid level changes in a tank or vessel.

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Product Specifications

Technical details and manufacturing context for Float Assembly

Definition

The Float Assembly is a critical component of a Level Gauge system, consisting of a buoyant float connected to a mechanical linkage or transmitter. It detects liquid level changes by floating on the surface of the measured liquid, converting the vertical displacement into a mechanical or electrical signal for level indication, control, or monitoring.

Working Principle

The float, typically hollow and sealed, is buoyant in the measured liquid. As the liquid level rises or falls, the float moves vertically. This movement is transferred through a stem, arm, or magnet coupling to a mechanical indicator, switch, or electronic transmitter that converts the position into a readable level measurement.

Common Materials

Stainless Steel, Polypropylene, PTFE (Teflon), Hastelloy

Technical Parameters

Float diameter and length; stem length and diameter; overall assembly dimensions (mm) Customizable

Components / BOM

Float Body Part
Provides buoyancy to follow liquid level changes; typically hollow and sealed

Material: Stainless steel, plastic, or specialty alloy
Stem/Rod Part
Connects float to mechanical linkage or transmitter; transfers vertical movement

Material: Stainless steel, brass, or rigid polymer
Magnet Assembly
In magnetic level gauges: contains magnets that couple float movement to external indicator

Material: Rare earth magnets with protective casing
Guide/Stabilizer Part
Keeps float aligned vertically and prevents rotation or sticking in the chamber

Material: Stainless steel, PTFE
Seals/Gaskets Part
Prevents leakage in pressurized applications; seals between moving parts

Material: Viton, EPDM, PTFE

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Float Assembly.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Level Gauge

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Industrial Ecosystem & Supply Chain Structure

Complementary Systems

Downstream Applications

Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits

pressure:	0 to 10 bar (gauge)
flow rate:	Not applicable (static level measurement)
temperature:	-40°C to 150°C
slurry concentration:	Up to 30% solids by weight (dependent on particle size)

Media Compatibility

✓ Water-based liquids ✓ Hydrocarbon fuels (diesel, gasoline) ✓ Chemical solutions (pH 4-10)

Unsuitable: Highly viscous fluids (>500 cP) or media with significant fouling potential

Sizing Data Required

Tank/vessel diameter
Required measurement range (min-max level)
Specific gravity of process fluid

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause

Corrosion-induced leakage

Cause: Exposure to corrosive fluids or atmospheric conditions leading to material degradation and loss of sealing integrity

Mechanical binding/sticking

Cause: Accumulation of debris, sediment, or scale within the float mechanism, preventing proper movement and level indication

Maintenance Indicators

Inconsistent or erratic level readings despite stable process conditions
Visible fluid leakage around the float assembly housing or mounting points

Engineering Tips

Implement routine cleaning and inspection schedules to remove debris and verify mechanical freedom of movement
Apply appropriate corrosion-resistant coatings or select compatible materials based on specific fluid chemistry and operating environment

Compliance & Manufacturing Standards

Reference Standards

ISO 9001:2015 - Quality management systems ASTM A370 - Standard Test Methods and Definitions for Mechanical Testing of Steel Products CE Marking - Conformity with EU safety, health, and environmental requirements

Manufacturing Precision

Bore diameter: +/-0.025mm
Surface flatness: 0.08mm

Quality Inspection

Dimensional verification using CMM (Coordinate Measuring Machine)
Pressure testing for leak integrity

Factories Producing Float Assembly

Manufacturer profiles with relevant production capability in China

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

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation

4/5

Manufacturing capability

4/5

Inspection readiness

5/5

Supplier transparency

3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What materials are available for float assemblies in corrosive applications?

Float assemblies are available in corrosion-resistant materials including stainless steel (general use), polypropylene (chemical resistance), PTFE/Teflon (high chemical inertness), and Hastelloy (extreme corrosion environments).

How does a float assembly work in liquid level monitoring?

A buoyant float moves vertically with liquid level changes in a tank. This mechanical movement can actuate switches, magnets, or indicators through the stem/rod assembly to provide level measurement or control signals.

What components make up a standard float assembly BOM?

Standard bill of materials includes: float body (buoyant element), stem/rod (connection component), magnet assembly (for magnetic switches), guide/stabilizer (for vertical alignment), and seals/gaskets (for leak prevention).

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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.

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