Industry-Verified Manufacturing Data (2026)

Fluid Cap / Body

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Fluid Cap / Body 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 Fluid Cap / Body is characterized by the integration of Inlet Thread and Internal Chamber. In industrial production environments, manufacturers listed on CNFX commonly emphasize Stainless Steel 316 construction to support stable, high-cycle operation across diverse manufacturing scenarios.

The main housing component of a spray nozzle assembly that contains and directs fluid flow.

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Product Specifications

Technical details and manufacturing context for Fluid Cap / Body

Definition
The Fluid Cap/Body is the primary structural component of a spray nozzle assembly, serving as the housing that encloses internal parts, maintains pressure integrity, and provides the fluid passageway from the inlet to the orifice. It determines the nozzle's connection type, mounting configuration, and overall durability.
Working Principle
Fluid enters the body through an inlet connection, flows through an internal chamber where pressure is maintained, and is directed toward the orifice plate or spray tip. The body's geometry controls flow characteristics and provides structural support for all internal components.
Common Materials
Stainless Steel 316, Brass, PVC
Technical Parameters
  • Connection thread size (e.g., NPT, BSP) and overall dimensions (mm) Per Request
Components / BOM
  • Inlet Thread
    Provides connection to fluid supply line
    Material: Same as body material
  • Internal Chamber
    Holds fluid under pressure before discharge
    Material: Same as body material
  • Mounting Flange
    Secures nozzle to equipment or piping
    Material: Same as body material
  • Orifice Seat
    Precise surface where orifice plate or tip seals
    Material: Same as body material
Engineering Reasoning
0.5-15 bar (7.25-217.5 psi)
18.5 bar (268.3 psi) internal pressure causing yield stress of 250 MPa in 316L stainless steel
Design Rationale: Plastic deformation due to hoop stress exceeding material yield strength: σ_h = (P·D)/(2·t) where P=18.5 bar, D=25 mm, t=1.5 mm
Risk Mitigation (FMEA)
Trigger Cavitation bubble collapse at 1500 bar localized pressure
Mode: Surface pitting erosion with 0.1 mm/year material loss rate
Strategy: Flow path optimization with 8° divergence angle to maintain pressure above vapor pressure
Trigger Chloride ion concentration exceeding 100 ppm at 60°C
Mode: Stress corrosion cracking initiating at thread roots
Strategy: Duplex stainless steel (UNS S32205) with PREN > 40 and shot peening to -300 MPa residual stress

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Fluid Cap / Body.

stainless steel 316 spray nozzle body brass fluid cap mounting flange PVC spray nozzle housing component industrial fluid cap internal chamber machinery equipment spray nozzle orifice seat

Applied To / Applications

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

Spray Nozzle Assembly
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Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 100 bar (1450 psi)
flow rate: 0.5 to 500 L/min
temperature: -40°C to 150°C
slurry concentration: Up to 30% solids by weight
Media Compatibility
✓ Water-based fluids ✓ Chemical solutions (pH 3-10) ✓ Oil-based lubricants
Unsuitable: Hydrofluoric acid or highly corrosive halogenated compounds
Sizing Data Required
  • Required flow rate (L/min)
  • Operating pressure (bar)
  • Fluid viscosity (cP)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Seal degradation and leakage
Cause: Chemical incompatibility with process fluid leading to seal swelling, hardening, or cracking; excessive temperature beyond seal material limits; improper installation causing seal damage
Thread wear and galling
Cause: Improper torque application during installation (over-tightening or under-tightening); misalignment during assembly; lack of lubrication on threads; material incompatibility between cap and body threads
Maintenance Indicators
  • Visible fluid seepage or drips around the cap-body interface during operation
  • Audible hissing or whistling sound indicating pressure leakage past the seal
Engineering Tips
  • Implement proper torque procedures using calibrated tools and follow manufacturer specifications to prevent thread damage and ensure optimal seal compression
  • Establish regular inspection intervals to check seal condition and replace proactively based on service hours or cycles rather than waiting for failure

Compliance & Manufacturing Standards

Reference Standards
ISO 1179-1:2013 (Connections for general use and fluid power - Ports and stud ends) ANSI/ASME B16.5:2020 (Pipe Flanges and Flanged Fittings) DIN 2353:2017 (Tube fittings with cutting ring for general and hydraulic use)
Manufacturing Precision
  • Bore diameter: +/-0.02mm
  • Sealing surface flatness: 0.1mm
Quality Inspection
  • Pressure test (hydrostatic/pneumatic) for leak integrity
  • Dimensional verification with coordinate measuring machine (CMM)

Factories Producing Fluid Cap / Body

Verified manufacturers with capability to produce this product in China

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✓ 96% Supplier Capability Match Found

S Sourcing Manager from Australia Jan 04, 2026
★★★★★
"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Fluid Cap / Body arrived with full certification."
Technical Specifications Verified
P Procurement Specialist from Singapore Jan 01, 2026
★★★★☆
"Great transparency on the Fluid Cap / Body components. Essential for our Machinery and Equipment Manufacturing supply chain. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
T Technical Director from Germany Dec 29, 2025
★★★★★
"The Fluid Cap / Body we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

6 sourcing managers are analyzing this specification now. Last inquiry for Fluid Cap / Body from Vietnam (1h ago).

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Frequently Asked Questions

What materials are available for the fluid cap/body?

The fluid cap/body is available in Stainless Steel 316 for corrosion resistance, Brass for durability and cost-effectiveness, and PVC for chemical compatibility and lightweight applications.

What are the key components in the fluid cap/body BOM?

The bill of materials includes an Inlet Thread for fluid connection, an Internal Chamber for flow direction, a Mounting Flange for secure installation, and an Orifice Seat for precise fluid control.

How does the fluid cap/body function in spray nozzle assemblies?

It serves as the main housing that contains and directs fluid flow from the inlet through the internal chamber to the orifice, ensuring controlled spray patterns in machinery and equipment manufacturing.

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 Specifications verified by CNFX Industrial Index (v2.6.03) for Machinery and Equipment Manufacturing sector.

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