Structured Manufacturing Data (2026)

Blow Pipe

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Blow Pipe 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 Blow Pipe is characterized by the integration of Pipe Body and Nozzles/Orifices. In industrial production environments, manufacturers listed on CNFX commonly emphasize Carbon Steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A tubular component in pulse-jet cleaning systems that directs compressed air pulses into filter bags to dislodge accumulated dust.

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Product Specifications

Technical details and manufacturing context for Blow Pipe

Definition

The blow pipe is a critical component within pulse-jet cleaning systems used in industrial dust collection. It serves as the conduit through which high-pressure compressed air pulses are delivered from the solenoid valves to the filter bags. Strategically positioned above the filter bags, the blow pipe contains precisely drilled orifices (nozzles) aligned with each filter bag. When activated, it releases short, powerful bursts of air that travel down the filter bags, creating a reverse flow that dislodges dust cakes from the bag surfaces, enabling continuous filtration operation.

Working Principle

The blow pipe operates by receiving compressed air from a common header through solenoid valves. When a valve opens, compressed air rapidly enters the blow pipe and is expelled through its nozzles. The high-velocity air creates a shock wave that travels down the filter bags, flexing them and breaking the dust cake. The pipe remains pressurized only during the brief cleaning pulse (typically 0.1-0.2 seconds), then returns to atmospheric pressure until the next cycle.

Common Materials

Carbon Steel, Stainless Steel, Aluminum

Technical Parameters

Diameter and wall thickness of the pipe, typically ranging from 25-100mm diameter with 2-5mm wall thickness depending on system size (mm) Standard Spec

Components / BOM

Pipe Body Part
Main structural tube that contains and directs compressed air

Material: Carbon Steel/Stainless Steel
Nozzles/Orifices Part
Precision-drilled holes that direct air pulses into filter bags

Material: Same as pipe body
Mounting Brackets Part
Secure the blow pipe in position above the filter bags

Material: Steel
End Caps Part
Seal the ends of the pipe to maintain pressure integrity

Material: Same as pipe body

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Blow Pipe.

Applied To / Applications

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

Pulse-Jet Cleaning System

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Industrial Ecosystem & Supply Chain Structure

Complementary Systems

Downstream Applications

Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits

pressure:	Up to 10 bar (150 psi)
flow rate:	0.5-5.0 m³/min (17.7-176.6 SCFM)
temperature:	-20°C to 150°C
pulse duration:	50-200 milliseconds

Media Compatibility

✓ Compressed air (dry, oil-free) ✓ Nitrogen gas ✓ Industrial process gases (non-corrosive)

Unsuitable: Abrasive slurry or wet particulate environments

Sizing Data Required

Filter bag diameter and length
Required pulse pressure and volume
System operating pressure and pulse frequency

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause

Abrasive erosion

Cause: High-velocity particulate matter in the conveyed material wearing down the pipe wall, especially at bends and elbows.

Fatigue cracking

Cause: Cyclic pressure fluctuations and vibration from the blower or compressor, leading to stress concentration at welded joints or supports.

Maintenance Indicators

Audible hissing or whistling indicating air leaks at joints or cracks.
Visible thinning, discoloration, or bulging of the pipe wall, particularly at bends.

Engineering Tips

Install wear-resistant liners or hard-facing at high-erosion areas like elbows to reduce abrasive damage.
Use flexible couplings and proper pipe supports to dampen vibrations and minimize stress on welded connections.

Compliance & Manufacturing Standards

Reference Standards

ISO 5171:2017 - Gas welding equipment - Blowpipes for gas welding, heating and cutting ANSI Z49.1:2021 - Safety in Welding, Cutting, and Allied Processes DIN 8544-1:2016 - Blowpipes for gas welding, heating and cutting - Part 1: Blowpipes for welding and heating

Manufacturing Precision

Bore diameter: +/-0.05mm
Nozzle concentricity: 0.1mm TIR

Quality Inspection

Leak test at 1.5x working pressure
Dimensional verification of critical components

Factories Producing Blow Pipe

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation

4/5

Manufacturing capability

4/5

Inspection readiness

5/5

Supplier transparency

3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What materials are blow pipes typically made from in industrial applications?

Blow pipes are commonly manufactured from carbon steel, stainless steel, or aluminum, with material selection based on factors like corrosion resistance, temperature requirements, and budget constraints.

How do blow pipes function in pulse-jet cleaning systems?

Blow pipes direct high-pressure compressed air pulses through nozzles/orifices into filter bags, creating a shockwave that dislodges accumulated dust, maintaining optimal filtration efficiency in dust collection systems.

What components are included in a typical blow pipe assembly?

A standard blow pipe assembly includes the pipe body, nozzles/orifices for air distribution, mounting brackets for secure installation, and end caps to seal the pipe ends, ensuring proper airflow and system integrity.

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 Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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.

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