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Home > Industrial Equipment & Components > Filtration Equipment & Parts > Filter Element > Helically Perforated Tube 304 SS 3mm Perforation 20mm Spacing 0.8mm Wall Heat Exchanger Use

Helically Perforated Tube 304 SS 3mm Perforation 20mm Spacing 0.8mm Wall Heat Exchanger Use

Helically Perforated Tube 304 SS 3mm Perforation 20mm Spacing 0.8mm Wall Heat Exchanger Use thumbnail-3

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Helically Perforated Tube 304 SS 3mm Perforation 20mm Spacing 0.8mm Wall Heat Exchanger Use photo-3

Helically Perforated Tube 304 SS 3mm Perforation 20mm Spacing 0.8mm Wall Heat Exchanger Use photo-4

Helically Perforated Tube 304 SS 3mm Perforation 20mm Spacing 0.8mm Wall Heat Exchanger Use photo-5

Product Spotlights

Helically perforated 304 SS tube with 3mm holes and 20mm spacing, optimized for heat exchanger efficiency. Customizable diameter and length. 0.8mm wall thickness balances weight and strength. Manufactured by a 1998-established factory with US$5-10M annual export, serving global markets. Enhanced turbulence, reduced fouling, and reliable quality.

Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)

Key Specifications

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Material:

Other, 304 Stainless Steel

Application:

Other, Heat Exchanger

Perforation Diameter:

3 mm

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Anping County Boli Hardware Wiremesh Products Factory

2Yrs

Payment & Shipping

Payment Methods:

Port of Shipment:

tianjin shanghai qingdao

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
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Material Other, 304 Stainless Steel

Application Other, Heat Exchanger

Perforation Diameter 3 mm

Perforation Spacing 20 mm (center-to-center)

Wall Thickness 0.8 mm

Tube Diameter Customizable

Length Customizable (up to 6m)

Surface Finish Mill finish or pickled

End Connection Plain ends or custom

From a trusted manufacturer with over 25 years of experience (since 1998), Anping County Boli Hardware Wiremesh Products Factory proudly presents our Helically Perforated Tube made of 304 Stainless Steel. Designed specifically for heat exchanger applications, this tube features precise 3mm perforations spaced at 20mm intervals along a helical pattern, ensuring optimal fluid distribution and thermal efficiency. With a wall thickness of 0.8mm, it offers a balance of durability and heat transfer performance. Our helical perforation design reduces pressure drop while maximizing surface area, making it an ideal choice for condensers, evaporators, and other thermal management systems.

Key Features & Technical Specifications

Material: Premium 304 Stainless Steel – excellent corrosion resistance and weldability.
Perforation Pattern: Helically arranged – improves turbulence and heat transfer coefficient.
Hole Diameter: 3 mm (±0.1 mm) – suitable for fine particle filtration or fluid mixing.
Pitch (Spacing): 20 mm center-to-center – reduces clogging and maintains structural integrity.
Wall Thickness: 0.8 mm – lightweight yet strong enough for moderate pressure applications.
Tube Diameter: Customizable (from 10 mm to 100 mm) – flexible for various heat exchanger designs.
Length: Standard up to 6 meters, other lengths available upon request.
End Finish: Plain cut ends, or can be beveled, threaded, or flanged as needed.

Typical Parameters (Table)

Parameter	Value	Remarks
Material Grade	304 (UNS S30400)	Equivalent to 1.4301
Perforation Diameter	3 mm	Tolerance ±0.1 mm
Helical Spacing (Pitch)	20 mm	Center-to-center along helix
Wall Thickness	0.8 mm	Standard gauge
Open Area	~15% – 20%	Depends on tube diameter
Max Operating Temperature	870 °C (in air)	Continuous service
Standard Length	6 m	Custom lengths available

Advantages for Heat Exchanger Use

Enhanced Heat Transfer: The helical perforation creates turbulent flow, increasing the overall heat transfer coefficient by up to 30% compared to plain tubes.
Reduced Fouling: The 3mm holes and 20mm spacing allow self-cleaning action, minimizing deposit buildup and extending maintenance intervals.
Lightweight Construction: 0.8mm wall thickness reduces material cost and weight, making installation easier without sacrificing structural reliability.
Corrosion Resistance: 304 stainless steel provides excellent resistance to a wide range of fluids, including water, steam, oils, and mild chemicals.
Customizable Geometry: Tube diameter and length can be tailored to fit your specific heat exchanger shell and tube layout.
Consistent Quality: Manufactured with advanced CNC perforation machines, ensuring uniform hole size and spacing for predictable performance.

Trust & Reliability

Anping County Boli Hardware Wiremesh Products Factory has been a leading manufacturer of perforated metal products since 1998. With an annual export value between US$5 Million and US$10 Million, we serve clients across North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. Our products are shipped from major ports including Tianjin, Qingdao, Shanghai, and Foshan, ensuring efficient logistics worldwide. Every tube undergoes rigorous quality checks to ensure dimensional accuracy and surface finish. We are committed to providing competitive pricing without compromising on quality. Contact us today for a quote or to discuss your custom heat exchanger tube requirements.

Frequently Asked Questions (FAQ)

Q: What is the minimum order quantity (MOQ) for this helical perforated tube?
A: The MOQ is typically 100 meters for standard sizes. For smaller quantities, please contact our sales team to check availability.
Q: Can you provide tubes with different perforation diameters or spacing?
A: Yes, we offer customization. Hole diameters from 1 mm to 10 mm and spacing from 5 mm to 50 mm are available. Please provide your requirements.
Q: What is the maximum tube length you can produce?
A: Standard length is 6 meters. For longer tubes up to 12 meters, we can arrange special production, subject to feasibility.
Q: Is this tube suitable for high-pressure applications?
A: The 0.8 mm wall thickness is designed for moderate pressure (typically up to 10 bar depending on diameter). For higher pressures, we recommend a thicker wall or a different material. Please consult our engineers.
Q: Do you offer any surface treatment like passivation or electropolishing?
A: Yes, we can provide passivation, pickling, or electropolishing as optional services. These treatments improve corrosion resistance and cleanability.
Q: Can you supply tubes with flanged or threaded ends?
A: Absolutely. We can customize end connections to match your system. Common options include plain ends, beveled ends, threaded ends, or flanges.
Q: How long does a typical order take to produce?
A: For standard sizes, lead time is about 15-20 working days after order confirmation. Custom orders may require 20-30 working days depending on complexity.
Q: Do you provide samples before mass production?
A: Yes, we can produce samples for approval. Sample cost is negotiable, and it will be deducted from the bulk order if placed.