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Metals & minerals
ASME B16.5 SlipOn Flanges Certified Factory and China Suppliers for Industrial Piping
Source high-performance ASME B16.5 slip-on flanges from a leading China factory. As professional suppliers, we offer loose-fit designs to reduce thermal stress and optimize installation for petrochemical and HVAC systems.
SupplierCangzhou Weihuan Pipeline Equipment Co.,Ltd.www.weihuantube.com
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About this product
Product information from the supplier.
The ASME B16.5 Slip-On Flange is a high-performance industrial pipe fitting engineered for exceptional versatility and structural integrity. Featuring a specialized "loose-fit" architecture where the flange disc inner diameter slightly exceeds the pipe's outer diameter, this design allows the pipe to slide effortlessly into the flange. This innovative construction ensures a secure, leak-proof connection achieved through precision bolt fastening and strategic sleeve welding, making it a cornerstone for modern industrial piping.
Specifically developed to withstand rigorous industrial stress, the slip-on flange effectively compensates for axial expansion, thermal contraction, and angular deflection. By reducing stress concentration in rigid piping networks, it simplifies installation and enhances system longevity. This makes it an indispensable component for critical infrastructure in the petrochemical, HVAC, and marine sectors, where thermal fluctuations and environmental pressures are prevalent.
Detailed Parameters
| Design Standard | ASME B16.5 (Class 150 to Class 2500) | Nominal Size (NPS) | 1/2" to 24" (Custom sizes available) |
|---|---|---|---|
| Material Options | ASTM A105, A350 LF2, A182 F304/F316, F11/F22 | Sealing Face | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Carbon Steel Temp | Operating temperature ≤ 425℃ | Stainless Steel Temp | Operating range 270℃ to 816℃ |
| Alloy Steel Temp | High temp resistance above 600℃ (F22) | Angular Deflection | Supports up to ±3° angular adjustment |
| Axial Displacement | Supports up to ±5mm displacement | Quality Certification | ISO 9001, ASME U Stamp, PED 2014/68/EU |
Key Advantages
Stress Compensation
The loose-fit structure relieves thermal expansion and contraction stress, preventing catastrophic pipe failure.
Rapid Installation
Simplified assembly as only the sleeve requires welding, reducing precision requirements for pipe alignment.
Cost Optimization
Reduces the consumption of expensive high-grade materials for large pipelines compared to integral flanges.
Easy Maintenance
Quick disassembly via bolt loosening allows for rapid gasket replacement without cutting pipes.
Material Versatility
Available in carbon, stainless, and alloy steels to suit corrosive, acidic, or high-pressure environments.
Certified Quality
Strict UT non-destructive testing ensures zero internal porosity and full compliance with global standards.
Product Gallery
Management Platforms
Forging Control
Precision forging processes are tracked to ensure maximum structural density and mechanical strength.
Heat Treatment
Strict temperature control logs for normalizing and tempering to optimize material hardness.
Dimensional Audit
100% inspection of diameters, thickness, and bolt hole positioning prior to shipment.
UT Testing
Ultrasonic Testing (UT) implemented to detect and eliminate internal inclusions or porosity flaws.
Material Traceability
Full Material Test Reports (MTR) provided for every batch of carbon and stainless steel.
ISO Compliance
Strict adherence to ISO 9001 quality management systems for global export reliability.
Investment Return Comparison
| Comparison Factor | Slip-On Flange | Integral Welding Flange |
|---|---|---|
| Installation Speed | Very Fast (Easy alignment) | Slow (High precision needed) |
| Material Cost | Low (Optimized use) | High (Full grade material) |
| Thermal Stress | High Compensation (±3°) | Rigid (Low compensation) |
| Maintenance Cost | Low (Fast replacement) | High (Requires pipe cutting) |
| Overall ROI | Excellent for Large-Scale | Better for Extreme Pressure |
Frequently Asked Questions
Q: What is the main difference between a slip-on flange and a weld neck flange?
Slip-on flanges slide over the pipe and are welded both inside and outside, offering easier installation and lower cost. Weld neck flanges are butt-welded for higher pressure and superior stress resistance.
Q: Which material is best for highly corrosive chemical environments?
Stainless Steel, particularly ASTM A182 F316, is highly recommended due to its superior resistance to acids and alkalis compared to carbon steel.
Q: Can slip-on flanges be used in high-temperature power plants?
Yes, specifically Alloy Steel flanges like F22 are designed to withstand temperatures exceeding 600℃, making them ideal for thermal power generation.
Q: What does the "Raised Face (RF)" sealing standard mean?
A Raised Face means the gasket surface is slightly elevated above the bolting circle, which concentrates more pressure on the gasket to ensure a tighter seal.
Q: How does the slip-on design handle pipe vibration in marine engineering?
The loose-fit nature allows for slight angular and axial movement, which helps absorb vibration and impact loads during vessel navigation.
Q: What certifications should I request for export-grade structural metal products?
For global exports, you should ensure the products carry the ASME U Stamp, ISO 9001, and PED 2014/68/EU certification for European markets.
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Cangzhou Weihuan Pipeline Equipment Co.,Ltd.
