Main Body Tube: Temperature Range -20°C to 400°C

Component Specifications

Definition

The Main Body Tube is the primary cylindrical structural component of an injection lance, designed to withstand high-pressure fluid flow and provide a stable conduit for precise material injection in industrial processes. It serves as the central housing that connects various lance components while maintaining structural integrity under operational stresses.

Working Principle

Functions as a pressure vessel and flow conduit, maintaining laminar flow characteristics while withstanding internal pressure from injected materials and external mechanical stresses during operation. The tube's geometry and material properties ensure minimal pressure drop and consistent flow distribution.

Materials

Typically manufactured from stainless steel (AISI 316L, 304), carbon steel (ASTM A106 Grade B), or specialized alloys (Inconel, Hastelloy) depending on corrosion resistance and temperature requirements. Wall thickness ranges from 3-12mm based on pressure ratings.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Length	500-3000mm
Diameter	25-150mm
Surface Finish	Ra 0.8-3.2μm
Pressure Rating	10-100 bar
Temperature Range	-20°C to 400°C
Straightness Tolerance	0.5mm/m

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 1127, DIN 2448, ASME B36.10M

Parent Products

This component is used in the following industrial products

Injection Lance

A precision tubular component designed to deliver agents into target systems with controlled flow and pressure.

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Engineering Analysis

Risks & Mitigation

Material fatigue from cyclic pressure
Corrosion from aggressive media
Mechanical damage during handling
Thermal stress cracking

FMEA Triads

Trigger: Material degradation from chemical exposure
Failure: Wall thinning and eventual rupture
Mitigation: Regular thickness testing, material selection based on chemical compatibility charts

Trigger: Improper installation alignment
Failure: Premature wear at connections and seal failures
Mitigation: Precision alignment procedures, laser alignment tools, proper support bracketing

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.5mm on diameter, ±1mm on length, ±0.1mm on wall thickness

Test Method

Hydrostatic pressure testing at 1.5x working pressure, ultrasonic thickness measurement, visual inspection per ASTM A450

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.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Main Body Tube

Manufacturer profiles associated with Main Body Tube.

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Frequently Asked Questions

What are the key considerations when selecting a Main Body Tube?

Material compatibility with injected substances, pressure rating requirements, temperature range, corrosion resistance needs, and connection compatibility with other lance components.

How does wall thickness affect Main Body Tube performance?

Thicker walls increase pressure capacity and structural rigidity but add weight and cost. Thinner walls reduce weight but may require pressure derating and careful handling.

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.

Main Body Tube