Inlet Thread: Temperature Range -40°C to 200°C

Component Specifications

Definition

The Inlet Thread is a precision-engineered threaded interface component that facilitates the controlled entry of fluids into the Fluid Cap or Body assembly. It ensures leak-proof connections, maintains system pressure integrity, and allows for standardized attachment of fluid supply lines in various industrial applications.

Working Principle

The Inlet Thread operates on the mechanical principle of helical ridge engagement, creating a sealed pathway for fluid transfer. When mated with corresponding external threads on fluid supply lines, it forms a pressure-tight connection through axial compression and radial sealing forces, preventing leakage while allowing controlled fluid flow into the system.

Materials

Typically manufactured from corrosion-resistant materials including 316L stainless steel, brass alloys (C36000), or engineered plastics (PTFE, PEEK) depending on application requirements. Material selection considers chemical compatibility, pressure ratings, and temperature ranges.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Size Range	1/8" to 2" nominal diameter
Thread Type	NPT, BSP, or metric threads
Surface Finish	Ra 0.8-1.6 μm
Pressure Rating	Up to 3000 PSI
Temperature Range	-40°C to 200°C
Thread Engagement	Minimum 3.5 full threads

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 228-1, ASME B1.20.1, DIN 259, JIS B0203

Parent Products

This component is used in the following industrial products

Fluid Cap / Body

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

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Engineering Analysis

Risks & Mitigation

Thread galling during installation
Cross-threading damage
Insufficient thread engagement causing leaks
Material incompatibility with process fluids
Over-torquing leading to thread deformation

FMEA Triads

Trigger: Improper installation technique
Failure: Cross-threading or thread stripping
Mitigation: Implement standardized installation procedures with torque specifications and use alignment tools during assembly

Trigger: Material corrosion from aggressive fluids
Failure: Thread degradation and leakage
Mitigation: Select corrosion-resistant materials based on fluid compatibility charts and implement regular inspection schedules

Trigger: Thermal cycling stress
Failure: Thread loosening or fatigue cracking
Mitigation: Use locking compounds or mechanical locking devices, and design for thermal expansion compatibility

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Thread dimensions per ASME B1.20.1 Class 2A/2B or ISO 228-1 Grade B tolerance

Test Method

Pressure testing per ISO 5208:2015, helium leak testing for critical applications, dimensional verification using thread gauges

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.

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Manufacturers of Inlet Thread

Manufacturer profiles associated with Inlet Thread.

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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 are the main types of inlet threads used in industrial applications?

The most common types are NPT (National Pipe Taper) for North America, BSP (British Standard Pipe) for international applications, and metric parallel threads. Selection depends on regional standards and system requirements.

How do I prevent leakage in inlet thread connections?

Use proper thread sealants (Teflon tape, thread compounds), ensure correct thread engagement (minimum 3.5 turns), maintain specified torque values, and verify thread condition for damage or wear before installation.

Can different thread standards be interchanged?

No, NPT, BSP, and metric threads are not interchangeable due to different thread angles, pitches, and taper specifications. Using incompatible threads can cause leaks, thread damage, or system failure.

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.

Inlet Thread