Vent Connection: Flow Capacity 10-100 m³/h

Component Specifications

Definition

A specialized industrial component designed to provide controlled venting and pressure equalization in feedwater tank storage sections. It prevents vacuum formation during drainage and allows vapor release during heating cycles while maintaining system integrity.

Working Principle

Operates on differential pressure principles, opening when internal tank pressure exceeds atmospheric pressure by a set threshold or when vacuum conditions develop during fluid withdrawal. Typically incorporates check valve mechanisms or pressure-sensitive diaphragms.

Materials

Stainless steel 316L (ASTM A240), food-grade EPDM or Viton seals, brass or aluminum alloy fittings

Technical Parameters

Parameter	Typical range	Notes & selection driver
Flow Capacity	10-100 m³/h
Vacuum Relief	0.05-0.1 bar
Connection Size	DN25 to DN100
Pressure Rating	0-10 bar
Opening Pressure	0.2-0.5 bar
Temperature Range	-20°C to 150°C

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 5211, DIN 11864, ASME B16.5

Parent Products

This component is used in the following industrial products

Storage Section / Feedwater Tank

The storage section of a deaerator that holds treated feedwater before distribution to boilers.

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Engineering Analysis

Risks & Mitigation

Corrosion failure
Seal degradation
Blockage from contaminants
Incorrect pressure setting
Improper installation orientation

FMEA Triads

Trigger: Corrosive environment exposure
Failure: Material degradation leading to leaks
Mitigation: Use corrosion-resistant materials (316L stainless), apply protective coatings, implement regular inspection protocols

Trigger: Seal material incompatibility
Failure: Seal degradation causing pressure loss
Mitigation: Select appropriate seal materials (EPDM for water, Viton for chemicals), verify temperature compatibility, establish replacement schedules

Trigger: Particulate contamination
Failure: Blockage preventing proper venting
Mitigation: Install upstream filters, implement regular cleaning procedures, use protective caps during maintenance

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±5% of set pressure for relief function, ±0.1mm for dimensional specifications

Test Method

Hydrostatic pressure testing per ASME BPVC Section VIII, functional testing with calibrated pressure sources, leak testing with soap solution or ultrasonic detection

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

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Manufacturers of Vent Connection

Manufacturer profiles associated with Vent Connection.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the primary function of a vent connection in feedwater tanks?

To prevent vacuum formation during drainage and allow controlled release of vapors during heating cycles while maintaining system pressure balance.

How often should vent connections be inspected?

Quarterly visual inspections and annual functional testing are recommended, with more frequent checks in high-cycling or corrosive environments.

Can vent connections be used with different media types?

Yes, but material compatibility must be verified - stainless steel for general applications, with specific seal materials for chemical or high-temperature services.

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.

Vent Connection