Editorial Technical Reference

Steam Injection Manifold

This page explains how Steam Injection Manifold is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A distribution component that evenly delivers steam into the conditioning chamber for temperature and humidity control.

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Steam Injection Manifold in a manufacturing environment
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Product Specifications

Technical details and manufacturing context for Steam Injection Manifold

Definition
The Steam Injection Manifold is a critical component of the Conditioning Chamber system, responsible for distributing steam uniformly throughout the chamber to achieve precise temperature and humidity levels required for various industrial processes such as material conditioning, curing, or treatment. This manifold is designed to accept steam from a boiler or generator through a main inlet and distribute it through multiple outlet ports or nozzles arranged along its body. The configuration ensures even steam dispersion across the chamber volume, with flow control valves or orifices regulating steam distribution to different zones if required. The manifold is available in several materials, including Stainless Steel 316L, Carbon Steel, and Copper Alloy, to suit different environmental and process conditions. Key parameters include an operating pressure range of 1.0–1.6 MPa (with a note that), a steam temperature range of 120–180°C (with a maximum of 200°C for gasket material), and a number of outlets ranging from 4 to 12, which must be equally spaced for even distribution. Outlet diameters range from 10 to 25 mm, determining steam velocity and distribution. Inlet connections are available in DN25–DN80, flanged or threaded, per ISO 7005. Body materials are typically SS304 or SS316L per ASTM A240, with seal materials of PTFE or EPDM. Surface finish is Ra ≤ 0.8 μm per ISO 4287, required for hygienic applications. Weight ranges from 5 to 20 kg, depending on size and material. Maximum pressure drop is 0.05–0.15 MPa to ensure even distribution. These values are reference ranges and must be verified with the legal manufacturer or supplier for the specific model and application. The manifold is a component, not a standalone system, and its performance depends on proper integration with the conditioning chamber and steam supply.
Working Principle
Steam from a boiler or generator enters the manifold through a main inlet, where it is distributed through multiple outlet ports or nozzles arranged along the manifold body. The manifold ensures even steam dispersion across the chamber volume, with flow control valves or orifices regulating steam distribution to different zones if required. The design of the manifold, including the number and spacing of outlets, is critical to achieving uniform steam distribution. The pressure drop across the manifold is maintained within a specified range to ensure consistent flow. The manifold is typically installed inside or adjacent to the conditioning chamber, and its operation is controlled by the overall system's control logic.
Common Materials
Stainless Steel 316L, Carbon Steel, Copper Alloy
Technical Parameters
ParameterTypical rangeNotes & selection driver
Operating Pressure1.0–1.6 MPa
Steam Temperature120–180 °CMaximum 200°C for gasket material
Number of Outlets4–12Even distribution requires equal spacing
Outlet Diameter10–25 mmDetermines steam velocity and distribution
Inlet ConnectionDN25–DN80Flanged or threadedISO 7005
Body MaterialSS304/SS316L316L for corrosive environmentsASTM A240
Seal MaterialPTFE/EPDMPTFE for high temperature, EPDM for steam
Surface FinishRa ≤ 0.8 μmRequired for hygienic applicationsISO 4287
Weight5–20 kgDepends on size and material
Max. Pressure Drop0.05–0.15 MPaEnsures even distribution

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

Components / BOM
  • Inlet Connection Part
    Receives steam from the main supply line
    Material: Stainless Steel
  • Distribution Pipe Part
    Main body that carries and distributes steam
    Material: Stainless Steel
  • Outlet Nozzles Part
    Directs steam into the chamber at specific points
    Material: Stainless Steel
  • Mounting Brackets Part
    Secures the manifold within the chamber
    Material: Carbon Steel
  • Flow Control Valve or Orifice Optional
    Balances steam between zones on multi-zone manifolds.

Application & selection

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 15 bar (217 psi) operating pressure
flow rate: 10-500 kg/h steam flow capacity
temperature: Up to 200°C (392°F) saturated steam
connection size: DN25-DN100 (1"-4") standard
Media Compatibility
✓ Saturated steam for humidity control ✓ Clean process steam for heating ✓ Low-concentration glycol solutions for freeze protection
Unsuitable: Corrosive chemical slurries or abrasive particulate media
Sizing Data Required
  • Required steam flow rate (kg/h)
  • Conditioning chamber volume and distribution requirements
  • Available steam supply pressure and temperature

Risk, maintenance & compliance

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Thermal fatigue cracking
Cause: Cyclic thermal stresses from rapid heating/cooling during steam injection cycles, exacerbated by poor manifold design or material selection.
Corrosion-induced leakage
Cause: Condensate accumulation and chemical attack from impurities in steam, leading to pitting and wall thinning, especially at welds and connections.
Maintenance Indicators
  • Visible steam leakage or hissing sounds from joints/flanges during operation
  • Abnormal vibration or knocking noises indicating water hammer or flow turbulence
Engineering Tips
  • Implement regular steam trap maintenance and condensate drainage to prevent water hammer and reduce thermal shock
  • Use corrosion-resistant materials (e.g., stainless steel grades) and apply protective coatings in high-wear areas, coupled with routine thickness monitoring via ultrasonic testing

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ASME B31.1 Power Piping PED 2014/68/EU Pressure Equipment Directive

Quoted from the published standard.

Manufacturing Precision
  • Bore Diameter: +/-0.025mm
  • Surface Flatness: 0.05mm per 100mm
Quality Inspection
  • Hydrostatic Pressure Test
  • Dye Penetrant Inspection
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Frequently Asked Questions

What is the operating pressure range for the Steam Injection Manifold?

The reference operating pressure range is 1.0–1.6 MPa. Always verify the exact pressure rating for your specific model with the manufacturer.

What materials are available for the manifold body?

The manifold body can be made of Stainless Steel 316L, Carbon Steel, or Copper Alloy. For corrosive environments, 316L is recommended. The standard body material grades are SS304 or SS316L per ASTM A240. Confirm the material suitability for your process conditions.

How many outlets can the manifold have?

The number of outlets ranges from 4 to 12. For even distribution, the outlets must be equally spaced. The exact number depends on the chamber size and steam demand. Consult the manufacturer for the optimal configuration.

What is the maximum pressure drop across the manifold?

The maximum pressure drop is 0.05–0.15 MPa. This range ensures even distribution. If the pressure drop exceeds this, it may indicate a blockage or undersized manifold. Verify the actual pressure drop in your system.

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

Related equipment

Applied To / Applications

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

Conditioning Chamber
View system integration details

Industrial Ecosystem & Supply Chain Structure

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

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.

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 · Page last updated 12 October 2026

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