Spray Manifold for Paper Machine Felt Conditioning

Product Specifications

Technical details and manufacturing context for Spray Manifold

Definition

The spray manifold is a critical component within the felt conditioning shower system used in paper manufacturing. It serves as the primary distribution mechanism that receives pressurized water or chemical conditioning solutions and disperses them uniformly through multiple spray nozzles onto the paper machine felt. This ensures consistent conditioning, cleaning, and moisture control of the felt, which is essential for maintaining paper quality and machine efficiency. The manifold is typically constructed from corrosion-resistant materials such as Stainless Steel 316, PVC, or Polypropylene, with the material choice depending on the chemical compatibility and operating environment. Key parameters include an operating pressure range of 1.0–1.6 MPa, a flow rate of 10–50 L/min per nozzle at 1.0 MPa, and a customizable number of nozzles (6–24) to match felt width. Nozzle spacing ranges from 75–150 mm to ensure uniform coverage, and the spray angle is adjustable between 60° and 120°. Connection sizes are available in 1–2 inch flanged or threaded configurations per ANSI B16.5. The maximum operating temperature is 80°C for water and chemical applications. Weight varies from 5–20 kg depending on length and connections. The surface finish is specified as Ra ≤ 0.8 μm per ISO 4287 to promote even distribution and minimize fouling. These values are directory reference ranges and must be verified with the legal manufacturer or supplier for the specific model and application. The manifold's design ensures equal pressure and flow to all nozzles, creating a uniform spray pattern across the felt width, which is vital for effective felt conditioning and overall paper machine performance.

Working Principle

Pressurized fluid (typically water or conditioning solution) enters the manifold through an inlet port. The internal chamber of the manifold distributes the fluid evenly to multiple outlet ports where spray nozzles are attached. The manifold's design ensures equal pressure and flow to all nozzles, creating a uniform spray pattern across the width of the felt. The internal geometry and surface finish (Ra ≤ 0.8 μm) minimize pressure drop and fouling, while the adjustable spray angle and nozzle spacing allow customization for specific felt widths and conditioning requirements. Proper selection of materials (e.g., Stainless Steel 316, PVC, Polypropylene) ensures chemical compatibility and corrosion resistance. Verification of operating pressure, flow rate, and nozzle configuration is essential to match the system's hydraulic requirements.

Common Materials

Stainless Steel 316, PVC, Polypropylene

Technical Parameters

Parameter	Typical range	Notes & selection driver
Flow Rate	10–50 L/min	Per nozzle at 1.0 MPa
Number of Nozzles	6–24	Customizable per felt width
Nozzle Spacing	75–150 mm	Uniform coverage
Spray Angle	60–120 °	Adjustable
Material	316L	Corrosion resistantASTM A240
Connection Size	1–2 inch	Flanged or threadedANSI B16.5
Max Operating Temperature	80 °C	For water and chemicals
Weight	5–20 kg	Depends on length and connections
Surface Finish	Ra ≤ 0.8 μm	For even distributionISO 4287

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 pressurized fluid from the supply line

Material: Stainless Steel
Distribution Chamber
Internal volume that evenly distributes fluid to all outlets

Material: Stainless Steel or Polymer
Nozzle Ports Part
Threaded outlets for attaching spray nozzles

Material: Stainless Steel
End Cap/Plug Part
Seals the end of the manifold

Material: Stainless Steel or Polymer

Applied To / Applications

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

Felt Conditioning Shower

View system integration details

Manufacturers of Spray Manifold

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Frequently Asked Questions

What is the operating pressure range for this spray manifold?

The directory lists an operating pressure range of 1.0–1.6 MPa. However, the actual allowable pressure depends on the specific model, material, and connection type. Always verify with the manufacturer for your application.

Can the number of nozzles be customized?

Yes, the number of nozzles is customizable per felt width, with a reference range of 6–24. The exact number should be determined based on the felt width and desired spray coverage, and confirmed with the supplier.

What materials are available for the manifold?

The materials on file include Stainless Steel 316, PVC, and Polypropylene. The choice depends on chemical compatibility, temperature, and pressure requirements. Verify material suitability with the manufacturer.

What is the maximum operating temperature?

The maximum operating temperature listed is 80°C for water and chemical applications. This is a reference value; the actual limit may vary with material and pressure. Confirm with the manufacturer for your specific conditions.

Data Basis

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

Preliminary Technical Classification

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pressure:	0.2 to 10 bar (3 to 145 psi)
flow rate:	10 to 500 L/min (2.6 to 132 gpm)
temperature:	5°C to 80°C (41°F to 176°F)
slurry concentration:	Up to 5% solids by weight

Spray Manifold

Product Specifications

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