Merit Brass
Stainless Steel RF Slip On Flange
- SKU:
- SFSOSS
- Availability:
- Usually Ships Same Day
- Weight:
- 0.00 LBS
Description
Stainless Steel RF Slip-On Flange
Stainless Steel Raised Face Slip-On Flanges provide a dependable and economical solution for connecting piping systems in industrial, commercial, and process applications. Designed to slide over compatible pipe before welding, the slip-on configuration helps simplify alignment and installation while providing a secure bolted flange connection.
Available in 150# and 300# pressure classes and manufactured from 304L or 316L forged stainless steel, these flanges offer corrosion resistance, mechanical strength, and long service life in demanding piping environments.
Product Highlights
- Raised Face (RF) slip-on flange design
- Available in 150# and 300# pressure classes
- Available in 304L and 316L stainless steel
- Forged stainless steel construction
- Material conforms to ASME A182
- Flange dimensions conform to ASME B16.5
- Slip-on design simplifies pipe alignment and installation
- Designed for welded piping connections
- Excellent corrosion resistance for demanding applications
- Manufactured in an ISO 9001:2008 certified facility
Slip-On Flange Design
The slip-on design allows the flange to slide over the outside diameter of compatible pipe before welding. This configuration can simplify positioning and alignment during fabrication compared with flange styles that require precise butt-weld preparation.
Once properly positioned, the flange is welded to the pipe to create a permanent connection. Proper fit-up, welding procedure, and pipe-to-flange compatibility should always be confirmed before installation.
Technical Specifications
| Product Type | Raised Face Slip-On Flange |
|---|---|
| Pressure Classes | 150# & 300# |
| Available Materials | 304L Stainless Steel & 316L Stainless Steel |
| Construction | Forged Stainless Steel |
| Connection Type | Slip-On Welded Connection |
| Flange Face | Raised Face |
| Material Standard | ASME A182 |
| Dimensional Standard | ASME B16.5 |
| Manufacturing Quality | ISO 9001:2008 Certified Facility |
| Primary Applications | Industrial, Commercial, Chemical Processing, Food Processing, Marine, Water Treatment & General Process Piping |
Raised Face Sealing Surface
The raised face provides the gasket sealing surface used in compatible bolted flange assemblies. By concentrating gasket loading over the raised sealing area, the flange supports dependable sealing when paired with the correct mating flange, gasket, bolting, and installation procedure.
150# vs. 300# Pressure Class
150# Class
- Class 150 flange configuration
- Commonly used in general commercial and industrial piping systems
- Raised face design for compatible gasketed assemblies
- Available in 304L and 316L stainless steel
300# Class
- Class 300 flange configuration
- Designed for applications requiring a higher flange pressure class
- Raised face design for compatible gasketed assemblies
- Available in 304L and 316L stainless steel
304L vs. 316L Stainless Steel
304L Stainless Steel
- Strong general-purpose corrosion resistance
- Commonly used in commercial and industrial piping
- Suitable for many food, water, and process applications
- Low-carbon stainless grade commonly used in welded assemblies
316L Stainless Steel
- Enhanced corrosion resistance for more demanding environments
- Commonly selected for marine and chloride-exposed service
- Suitable for many chemical and process piping applications
- Low-carbon stainless grade commonly used in welded assemblies
Forged Stainless Steel Construction
These slip-on flanges are manufactured from forged stainless steel material conforming to ASME A182. Forged construction provides mechanical strength, durability, and dimensional consistency for industrial piping applications.
Flange dimensions conform to ASME B16.5 for compatibility with applicable Class 150 and Class 300 flange systems.
Common Applications
Industrial & Process Piping
- Industrial piping systems
- Chemical processing
- Water treatment
- Mechanical equipment connections
- General process piping
Corrosion-Resistant Systems
- Food processing
- Marine applications
- Commercial stainless steel piping
- Process equipment connections
- Stainless steel fabrication
Important Ordering Notes
- Product type: Raised face slip-on flange.
- Available pressure classes: 150# and 300#.
- Available materials: 304L and 316L stainless steel.
- Forged stainless steel material conforms to ASME A182.
- Flange dimensions conform to ASME B16.5.
- Manufactured in an ISO 9001:2008 certified facility.
- Confirm nominal pipe size and slip-on fit before ordering.
- Verify pressure class, gasket selection, bolting, mating flange, temperature, and media compatibility before installation.
- Confirm the appropriate 304L or 316L grade for the intended service environment.
- Welding should be performed using procedures appropriate for the flange material and connected piping.
- Refer to the Stainless Steel ANSI Flange Dimensions PDF for dimensional information.
Product Documents
Frequently Asked Questions
What is a slip-on flange?
A slip-on flange is designed to slide over the outside of compatible pipe before being welded into place. This configuration can make alignment and positioning easier during fabrication.
What does RF mean?
RF means Raised Face. The gasket sealing surface is raised above the surrounding flange face for use in compatible gasketed flange connections.
What pressure classes are available?
These stainless steel slip-on flanges are available in 150# and 300# pressure classes.
What stainless steel grades are available?
These flanges are available in 304L and 316L stainless steel.
What is the difference between 304L and 316L?
Both provide corrosion resistance. 316L is generally selected for more demanding environments, including many marine, chloride-exposed, and chemical-processing applications.
What material standard applies to these flanges?
The forged stainless steel material conforms to ASME A182.
What dimensional standard applies?
The flange dimensions conform to ASME B16.5.
Does a slip-on flange require welding?
Yes. The flange is positioned over compatible pipe and welded to create the permanent flange-to-pipe connection.
What is the advantage of a slip-on flange?
The slip-on design can simplify pipe alignment and positioning because the flange slides over the pipe before welding.
Where can I find flange dimensions?
Use the Stainless Steel ANSI Flange Dimensions PDF in the Product Documents section above to review dimensional information before ordering.
What applications are these flanges commonly used for?
Common applications include industrial piping, commercial systems, chemical processing, food processing, marine service, water treatment, and general stainless steel process piping.

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