Foundry Q235 Carbon Steel Air Single Inlet Centrifugal Blower 13840pa

This article's table of contents introduction:

1. Decoding the Specifications
2. Where to Find & How to Specify
3. Potential Manufacturer Types (China-Based)
4. Critical Considerations for 13,840 Pa
5. Next Steps: How to buy

It appears you are looking for a specific industrial product: a Q235 carbon steel, single inlet centrifugal blower (fan) rated for an air pressure of 13,840 Pascals.

This is a high-pressure industrial fan (13.84 kPa). For context, 1 kPa is roughly 4 inches of water gauge (inWC). Therefore, 13.84 kPa is approximately 6 inWC. This is a specialized piece of equipment, likely used for pneumatic conveying, forced draft, or industrial exhaust systems.

Here is a detailed breakdown of what this specification means, where to find it, and critical considerations before purchasing.

Decoding the Specifications

• Foundry Q235 Carbon Steel:
  • Material: This is the most common structural carbon steel in China (similar to ASTM A36 or S235JR).
  • Significance: It indicates the fan housing, inlet cone, and impeller are made from standard welded steel. It is not stainless steel, so it is not suitable for corrosive or high-moisture environments without a protective coating.
• Air Single Inlet:
  • Design: The air enters from only one side of the impeller.
  • Significance: This is standard for high-pressure fans. The impeller is typically overhung on the motor shaft (direct drive) or on a bearing bracket (belt drive).
• Centrifugal Blower:
  • Type: This is a "blower" because of the high pressure. It is almost certainly a Backward Inclined (BI) or Airfoil (AF) design. Forward-curved fans cannot typically achieve 13,840 Pa efficiently.
  • Impeller: The impeller blades will be heavy-duty, often with a shroud on both sides for strength.
• 13840pa (13.84 kPa):
  • Pressure: This is the total pressure (static + velocity). This is a very high pressure.
  • Application: This pressure level is typical for dilute phase pneumatic conveying (moving cement, fly ash, wood chips, grains) or high-pressure industrial oven/dryer systems.

Where to Find & How to Specify

You cannot buy this as a generic "off-the-shelf" item. You need to specify it to a manufacturer of high-pressure centrifugal fans.

Key Parameters the Manufacturer Will Need:

1. Air Volume (Flow Rate): What is the Cubic Feet per Minute (CFM) or Cubic Meters per Hour (m³/h) ? A pressure of 13,840 Pa with 100 CFM is a tiny, expensive specialty fan. A pressure of 13,840 Pa with 50,000 CFM is a massive, expensive industrial fan. You must provide the flow rate.
2. Air Density/Temperature: Is the air at standard temperature (20°C / 68°F) or hot (e.g., 200°C)? Hot air requires a different fan design (thermal growth clearance, shaft cooling).
3. Drive Type: Direct Drive (motor shaft mounted) or Belt Drive (pulleys/belts)?
4. Rotation & Discharge: Clockwise or Counter-Clockwise? Discharge angle (e.g., Bottom Horizontal, Top Angular Down, etc.)?

Potential Manufacturer Types (China-Based)

Since you specified "Foundry Q235," you are likely looking for a Chinese manufacturer. Look for companies that make models like:

• 9-26 Series (High Pressure): Very common. Impeller diameters range from 4.5 to 16 (No. 4.5 to No. 16).
• 9-19 Series (High Pressure, smaller flow): Similar to 9-26 but for lower flow rates.
• M7-29 Series (Coal Mill/Ash Conveying): Extremely heavy-duty, designed for high-pressure, abrasive environments.

Example Model: 9-26 No. 12.5D

• Material: Q235
• Type: D (Direct Drive)
• Pressure: Could be in the range of 13,000-15,000 Pa depending on RPM.

Critical Considerations for 13,840 Pa

Motor Power is CRITICAL

• At this pressure, the motor will be very large. For example, a medium-flow fan at 13,840 Pa might require a 30 kW, 55 kW, or even 90 kW motor. Do not underestimate power. High pressure = High shaft power.

Vibration & Balance

• A fan creating 13.8 kPa of pressure runs at high RPM. The impeller must be dynamically balanced to G2.5 or G1.0 grade. Poor balance will destroy bearings and the housing within hours.

Shaft Seal

• Standard fans leak air at the shaft opening. At 13.8 kPa, this leakage is significant and inefficient. You may need a labyrinth seal, a stuffing box, or a mechanical seal for the shaft.

Ductwork Strength

• Your ductwork and system must be rated for this pressure. Standard HVAC duct will collapse. You need spiral lock-seam or welded steel duct.

Next Steps: How to buy

To get a quote for an "Air Single Inlet Centrifugal Blower 13840pa," you must provide:

• Flow Rate: e.g., 15,000 m³/h
• Temperature: e.g., 20°C or 150°C (if from a dryer/oven)
• Application: e.g., Pneumatic conveying of cement (this would require an abrasion-resistant liner inside the housing, not just plain Q235).

Search Terms to Use (Alibaba, Made-in-China, or specifying to a manufacturer):

• "9-26 high pressure centrifugal fan Q235"
• "High pressure single inlet blower 14000pa"
• "Industrial foundry Q235 carbon steel blower for pneumatic conveying"

If you cannot provide a flow rate, you cannot buy this fan. An engineer must size it for your specific system.