ALL CATEGORIES

Seller Center
- Product Management
  
  Post Product
  
  Manage Products
  
  Featured Products
- Blog Management
  
  Post Blog Article
  
  Manage Blog Articles
  
  Manage Blog Categories
- Inquiry Management
  
  My Inquiries
  
  Buying Requests
- Analytics Center
  
  Performance Dashboard
  
  Product Analytics
  
  Visitor Analytics
Connect Your Store to WeChat

Follow Our Official Service Account
Manage Products & Inquiries Anywhere
Seller Services

Seller Services

Goldsupplier.com: 20 years of Global Trade Expertise, Empowering Your Business to Go Global!

Join GoldSupplier.com

Free & Instant Registration

Showcase Company & Products

Access Global Buying Requests

Register Now

Activate Verified Supplier Membership

Priority Verified Visibility

Claim Exclusive Buying Requests

Automated Multi-language Store

Verified Now

Launch Your EasyOcean Website

Full-Service Website Management

Google Page 1 Guarantee

Enhanced Brand Credibility

Launch Now
Buyer Services
Post Buying Request

Browse Product Categories

Featured Suppliers
Contact Platform Support

Help Center

Home > Industrial Equipment & Components > Filtration Equipment & Parts > Filter Element > 304 Stainless Steel Helically Perforated Tube OD 50mm Wall 2mm for Filtration Applications

304 Stainless Steel Helically Perforated Tube OD 50mm Wall 2mm for Filtration Applications

304 Stainless Steel Helically Perforated Tube OD 50mm Wall 2mm for Filtration Applications thumbnail-3

304 Stainless Steel Helically Perforated Tube OD 50mm Wall 2mm for Filtration Applications thumbnail-4

304 Stainless Steel Helically Perforated Tube OD 50mm Wall 2mm for Filtration Applications thumbnail-5

304 Stainless Steel Helically Perforated Tube OD 50mm Wall 2mm for Filtration Applications photo-1

304 Stainless Steel Helically Perforated Tube OD 50mm Wall 2mm for Filtration Applications photo-2

304 Stainless Steel Helically Perforated Tube OD 50mm Wall 2mm for Filtration Applications photo-3

304 Stainless Steel Helically Perforated Tube OD 50mm Wall 2mm for Filtration Applications photo-4

304 Stainless Steel Helically Perforated Tube OD 50mm Wall 2mm for Filtration Applications photo-5

Product Spotlights

304 stainless steel helical perforated tube with OD 50mm and 2mm wall thickness, designed for efficient filtration. Features uniform spiral openings, high corrosion resistance, customizable lengths and hole sizes, and robust construction. Ideal for water, oil, chemical, and food processing applications. Backed by 25+ years of manufacturing expertise and global export experience.

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

Key Specifications

Get Latest Price

Material:

Other, 304 Stainless Steel

Application:

Other, Filtration

Outer Diameter:

50mm (1.97 inches)

Contact Supplier Request Quote Chat Now

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
Contact Us

Material Other, 304 Stainless Steel

Application Other, Filtration

Outer Diameter 50mm (1.97 inches)

Wall Thickness 2mm

Perforation Pattern Helical (spiral)

Length Customizable (available upon request)

Surface Finish Pickled, Annealed, or as required

End Connection Plain, threaded, or flanged (optional)

Standard Customer specified or industry standard

Anping County Boli Hardware Wiremesh Products Factory, established in 1998, is a professional manufacturer specializing in perforated metal products. With an annual export value of US$5–10 million, we serve global markets including North America, South America, Europe, Southeast Asia, and the Middle East. Our 304 Stainless Steel Helically Perforated Tube (OD 50mm, Wall 2mm) is engineered for demanding filtration applications, offering superior corrosion resistance, uniform flow distribution, and long service life. Whether you need liquid filtration, gas separation, or particle sieving, this tube delivers consistent performance backed by decades of manufacturing expertise.

Key Features & Technical Specifications

Material: Premium 304 stainless steel – excellent resistance to rust, oxidation, and chemical corrosion, ideal for food, pharmaceutical, and industrial environments.
Helical Perforation: The spiral pattern ensures continuous, even openings, reducing clogging and improving filtration efficiency compared to straight perforations.
Dimensions: Outer diameter 50mm (1.97 inches), wall thickness 2mm – robust enough for high-pressure applications while maintaining precise filtration.
Customizable Lengths: Available from 100mm to 6000mm or as per your drawings; ends can be plain, threaded, or flanged for easy integration.
Open Area Ratio: Typically 20%–35% depending on hole size and pitch, providing optimal balance between strength and flow rate.
Surface Finish: Pickled and annealed for a clean, smooth surface; optional passivation or electropolishing for enhanced hygiene.

Parameter	Specification
Material Grade	304 (1.4301)
Outer Diameter	50mm ±0.5mm
Wall Thickness	2mm ±0.2mm
Perforation Pattern	Helical (spiral), continuous
Hole Diameter	0.5mm – 10mm (customizable)
Open Area	20%–35% (depending on hole size)
Max Working Temperature	Up to 800°C (in non-oxidizing conditions)
Pressure Rating	Depends on length and end connection; consult factory

Advantages Over Traditional Perforated Tubes

Enhanced Filtration Efficiency: The helical design creates a multi-directional flow path, capturing particles more effectively and reducing pressure drop.
Self-Cleaning Capability: The spiral pattern helps dislodge trapped solids during backwashing, extending maintenance intervals.
Structural Integrity: 2mm wall thickness provides high mechanical strength, suitable for high-vibration or high-pressure environments.
Corrosion Resistance: 304 stainless steel withstands acidic, alkaline, and saline conditions, making it ideal for water treatment, chemical processing, and marine applications.
Easy Installation: Tubes can be supplied with matching couplings, flanges, or threaded ends for quick assembly into existing systems.

Typical Applications

Water and wastewater filtration (intake screens, strainers)
Oil and gas separation (well screens, filter elements)
Food and beverage processing (juice filtration, beer brewing)
Pharmaceutical and chemical filtration (pressure vessels, columns)
Environmental protection (dust collection, air purification)
Mining and minerals processing (dewatering, slurry separation)

With over 25 years of manufacturing experience and a dedicated R&D team, Anping Boli guarantees consistent quality and on-time delivery. Our factory is located in Hengshui, Hebei, with convenient access to Tianjin, Qingdao, Shanghai, and Foshan ports. We have exported to more than 20 countries, with annual export values exceeding US$5 million. Every tube undergoes strict dimensional inspection and surface quality checks before shipment. We also offer custom perforation patterns, hole sizes, and end treatments to meet your exact specifications. Contact us today for a quote or technical consultation – your satisfaction is our priority.

Frequently Asked Questions

What is the difference between helically perforated and straight perforated tubes?
Helically perforated tubes have a continuous spiral pattern, which provides better flow distribution, reduces clogging, and allows for more uniform filtration. Straight perforated tubes have rows of holes aligned axially, which can cause channeling and higher pressure drop.
Can I get custom hole sizes and patterns?
Yes, we offer full customization. Hole diameters from 0.5mm to 10mm are available, and the pitch (distance between holes) can be adjusted to achieve the desired open area. Please provide your drawings or specifications.
What is the maximum length you can produce?
Our standard maximum length is 6000mm (6 meters). Longer lengths can be produced by welding multiple sections, but we recommend single-piece tubes for most filtration applications to ensure uniformity.
Is this tube suitable for high-pressure filtration?
The 2mm wall thickness and 304 stainless steel make it robust for moderate to high pressures. However, the exact pressure rating depends on tube length, end connections, and operating conditions. We can provide pressure calculations based on your specific application.
What surface finishes are available?
Standard finish is pickled and annealed (matte gray). Options include bright annealing, electropolishing, and passivation. For food or pharmaceutical use, electropolishing is recommended for easy cleaning and corrosion resistance.
How long does production take?
For standard sizes and quantities, lead time is typically 15–25 working days. Custom orders may require 25–35 working days. Urgent orders can be expedited upon request.
Do you provide samples for testing?
Yes, we offer sample tubes (usually 200–300mm length) for a nominal fee, which is refundable for bulk orders. Please contact our sales team to arrange sample delivery.
What is the minimum order quantity (MOQ)?
Our MOQ is 50 pieces for standard dimensions. For custom specifications, MOQ may vary. We are flexible and welcome small trial orders for new customers.