Product Description
Our High Quality Steel Pipe Flange Covers are manufactured from premium 316L stainless steel, offering exceptional durability, corrosion resistance, and long-term reliability in harsh industrial environments. Designed specifically for DN150 (6-inch) nominal diameter flanges, these covers are engineered to protect exposed flange faces and maintain system integrity during installation, storage, transportation, and maintenance.
With compatibility across a wide range of pressure ratings (PN20, PN50, PN110, PN150, PN260, and PN420), these flange covers provide outstanding versatility for both standard and high-pressure piping systems. Their precision-engineered design ensures a secure fit, preventing contamination, dust ingress, or accidental mechanical damage to sealing surfaces—critical for extending the service life of industrial pipelines.
Made with 316L stainless steel, these covers deliver superior resistance to pitting, crevice corrosion, and high-temperature environments. This makes them particularly well-suited for industries where hygiene, safety, and reliability are paramount, such as oil & gas, petrochemical, chemical processing, power generation, shipbuilding, pharmaceuticals, and water treatment facilities.
Key Features & Benefits
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Material: Corrosion-resistant Stainless Steel 316L for durability in aggressive media.
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Nominal Size: DN150 (6 inches), ensuring compatibility with standard flange dimensions.
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Pressure Range: Versatile coverage for PN20, PN50, PN110, PN150, PN260, and PN420 systems.
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Function: Provides effective flange protection, sealing, and contamination prevention.
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Mechanical Strength: Withstands handling, storage, and operational stresses without deformation.
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Extended Service Life: Protects flange faces from scratches, impact, and corrosion, reducing maintenance costs.
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Industrial Applications: Ideal for oil & gas pipelines, chemical plants, power stations, shipbuilding, water treatment, and process industries.
Why Choose Our Flange Covers?
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Manufactured to strict international standards for quality and consistency.
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Precision-machined for secure, leak-free protection.
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Provides cost-effective maintenance solutions by reducing equipment downtime and preventing premature flange replacement.
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Trusted by global EPC contractors, engineering firms, and industrial end-users.
| Product Type |
Size |
Standard | Material | Pressure Class | Face Type | Connection Type | Applications |
|---|---|---|---|---|---|---|---|
| Carbon Steel Plate Flange | DN50 (2 inch) | ANSI B16.5 | Carbon Steel ASTM A105 / A516 | Class 150 | Raised Face (RF) | Welded or Bolted | Oil & Gas, Petrochemical, Water Treatment, Industrial Piping |
| Carbon Steel Slip-On Flange | DN15 - DN600 (½" – 24") | ANSI B16.5, ASME B16.47 | ASTM A105, Q235, Q345 | Class 150 – 300 | Flat Face (FF), Raised Face (RF) | Welded | Chemical, Power Plants, Water Supply |
| Stainless Steel Welding Neck Flange | DN15 - DN300 (½" – 12") | ANSI B16.5, ASTM A182 | Stainless Steel 304 / 316 / 316L | Class 150 – 600 | Raised Face (RF), Ring Type Joint (RTJ) | Welded | Food Processing, Pharmaceutical, Petrochemical |
Company Introduction — Hebei Cangtie Industrial Co., Ltd
Hebei Cangtie Industrial Co., Ltd is a professional manufacturer and exporter of flanges and pipe fittings, including threaded flanges, socket weld flanges, slip-on flanges, weld neck flanges, elbows, reducers, and customized parts.
Our factory in Yanshan Economic Development Zone, Cangzhou City, Hebei Province, China is equipped with CNC lathes, forging presses, machining centers, and advanced inspection equipment to ensure accuracy and quality.
We have over 10 years of export experience, supplying products that meet ASME, ANSI, DIN, JIS, EN, and GB standards to clients worldwide in oil & gas, petrochemical, marine, water treatment, and construction sectors.
Contact Us
Contact Person: Hudson Liu
Mobile / WhatsApp: +86 157 3370 8805
Email: hudson@cangtiepipe.com
Website: https://ctflange.com/
Factory Address: Yanshan Economic Development Zone, Yanshan County, Cangzhou City, Hebei Province, China
Frequently Asked Questions (FAQ)
1. Are you a manufacturer or trading company?
We are a manufacturer with our own factory in Hebei, China, specializing in stainless steel and carbon steel flanges.
2. What materials do you offer?
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Stainless Steel: 304, 304L, 316, 316L, 321, etc.
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Carbon Steel: ASTM A105, ASTM A350 LF2, Q235, Q345, etc.
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Alloy Steel: ASTM A182 F11, F22, F5, etc.
3. Which standards do your products comply with?
ASME B16.5, ANSI, ASTM, DIN, JIS, EN, GB — with third-party inspection available.
4. Do you offer OEM/ODM services?
Yes, we provide custom machining, surface treatment, packaging, and logo marking.
5. What is your MOQ?
MOQ is typically 1 piece for standard products; customized items may vary.
6. Do you provide samples?
Yes, free samples for standard sizes; buyer covers shipping.
7. What is your delivery time?
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In-stock: 3–5 working days
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Bulk/custom orders: 10–25 working days
8. How do you guarantee quality?
We conduct raw material inspection, dimensional verification, pressure/leak testing, and surface checks. Third-party inspection is available.
