INDUSTRY COMPONENT

Float

A float component in steam traps that uses buoyancy to control condensate discharge.

Component Specifications

Definition
The float is a hollow, sealed spherical or cylindrical component within mechanical steam traps that rises and falls with condensate levels. Its buoyancy directly actuates the valve mechanism to discharge condensate while preventing steam loss. Made from corrosion-resistant materials, it operates on Archimedes' principle to maintain precise condensate level control in industrial steam systems.
Working Principle
The float operates on buoyancy principles. As condensate accumulates in the steam trap chamber, the float rises with the liquid level. This upward movement mechanically opens the discharge valve through linkage. When condensate is discharged and steam approaches, the float drops, closing the valve to prevent steam escape. This cyclical action maintains optimal condensate removal while conserving steam energy.
Materials
Stainless steel (AISI 304/316), brass, or specialized alloys with corrosion-resistant coatings. Wall thickness: 0.8-1.5mm. Seamless construction with pressure ratings matching trap specifications.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Diameter25-100mm
Buoyancy Force0.5-5.0N
Specific Gravity0.3-0.8 (adjustable via internal ballast)
Temperature Range-20°C to 250°C
Operating Pressure0-25 bar

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 6552, DIN EN 27841

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Buoyancy loss from leaks
  • Corrosion in aggressive environments
  • Mechanical binding in guides
  • Incorrect specific gravity calibration
FMEA Triads
Trigger: Corrosion from acidic condensate
Failure: Float sinking due to water ingress
Mitigation: Use 316L stainless steel, apply protective coatings, implement regular pH monitoring
Trigger: Water hammer impact
Failure: Structural deformation
Mitigation: Install water hammer arrestors, maintain proper drainage slopes, use reinforced designs

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
±2% buoyancy force, ±0.5mm dimensional accuracy
Test Method
ASTM D3574 for buoyancy, ASME B16.34 for pressure testing, visual inspection per ISO 2859

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 Float

Manufacturer profiles associated with Float.

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Frequently Asked Questions

What causes float failure in steam traps?

Common failures include corrosion pitting, seam leaks compromising buoyancy, mechanical damage from water hammer, and internal ballast displacement altering specific gravity.

How do you test float functionality?

Perform buoyancy tests in water, pressure testing for leaks, visual inspection for corrosion/damage, and specific gravity verification using displacement methods.

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.

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