Midland Industries
Midland 3" 304 Stainless Steel RF Slip-On Flange
- SKU:
- 107027SS
- Availability:
- Allow 2-3 Days to Ship
- Weight:
- 9.00 LBS
Description
Midland 3" 304 Stainless Steel RF Slip-On Flange
Midland 3" Class 150 304 Stainless Steel Raised Face Slip-On Flange provides a durable, corrosion-resistant flange connection for commercial, industrial, and general process piping systems.
Manufactured from Type 304 stainless steel, this flange combines dependable mechanical strength with excellent resistance to corrosion and oxidation. The slip-on configuration simplifies pipe positioning prior to welding, while the raised face (RF) provides a defined gasket seating surface for a secure bolted connection.
Product Highlights
- Midland slip-on flange
- 3" nominal pipe size
- Class 150 pressure class
- Type 304 stainless steel construction
- Raised Face (RF) configuration
- Slip-on bore for simplified pipe alignment
- Designed for welded installation
- Precision-machined gasket seating surface
- Excellent corrosion and oxidation resistance
- Suitable for commercial and industrial piping systems
Technical Specifications
| Product Type | Slip-On Flange |
|---|---|
| Brand | Midland |
| Nominal Pipe Size | 3" |
| Material | 304 Stainless Steel |
| Pressure Class | Class 150 |
| Face Style | Raised Face (RF) |
| Connection Style | Slip-On |
| Installation Method | Welded |
| Weld Type | Fillet Weld |
| Primary Function | Pipe-to-Flange Connection |
| Typical Applications | Commercial, Industrial, Process, and General Fluid Handling Piping Systems |
Flange Configuration
3" Slip-On Bore
The slip-on design allows the flange to slide over compatible 3" pipe, simplifying alignment and positioning before the flange is permanently welded in place.
Raised Face
The raised face provides a concentrated gasket seating area to support dependable sealing when assembled with a compatible mating flange and gasket.
Class 150
The flange is identified as a Class 150 component for use with compatible Class 150 flange connections and properly selected system components.
Construction Details
Manufactured from Type 304 stainless steel, this flange provides long-lasting durability along with dependable resistance to corrosion and oxidation in compatible service environments.
The slip-on bore allows the flange to be positioned over the pipe prior to welding. Properly installed fillet welds secure the flange to the piping system and create a permanent connection.
A precision-machined raised face provides a consistent gasket seating surface to support reliable sealing when paired with the correct gasket, mating flange, and bolting hardware.
304 Stainless Steel Construction
Corrosion Resistance
Type 304 stainless steel provides excellent general-purpose corrosion and oxidation resistance for a wide range of compatible commercial and industrial environments.
Durable Construction
Stainless steel construction provides dependable mechanical strength and long service life when properly selected for the piping system and operating environment.
Slip-On Flange Design
Simplified Alignment
- Slides over compatible pipe
- Allows positioning before welding
- Simplifies flange alignment
- Common configuration for welded piping
- Suitable for permanent installations
Welded Installation
- Designed for fillet welding
- Provides a permanent pipe connection
- Requires proper pipe and flange preparation
- Correct alignment is important before welding
- Professional welding is recommended
Raised Face Design
Gasket Seating Surface
The raised face creates a defined sealing area that helps provide consistent gasket compression between properly aligned mating flanges.
Bolted Flange Connection
When assembled with the appropriate gasket and fasteners, the raised face configuration supports a secure, leak-resistant bolted piping connection.
Typical Applications
Commercial & Industrial
- Industrial piping systems
- Commercial mechanical systems
- General fluid handling
- Equipment connections
- Utility piping
Process Applications
- Process piping
- Water service
- Compatible liquid systems
- General plant piping
- Corrosion-resistant piping installations
Slip-On vs. Weld Neck Flange
Slip-On Flange
A slip-on flange slides over the pipe before welding, making initial positioning and alignment straightforward. It is secured to the pipe using fillet welds.
Weld Neck Flange
A weld neck flange uses a tapered hub and is butt welded directly to the pipe. Selection between flange styles should be based on the piping specification and application requirements.

Our valve, fitting, and industrial product specialists can help review your valve size, FIP connection requirements, pressure rating, handle configuration, media compatibility, and application before you order.
Email the GetPipe.com Team Visit Quick SupportFrequently Asked Questions
What size is this flange?
This flange is designed for a 3" nominal pipe size.
What material is the flange made from?
The supplied product information identifies Type 304 stainless steel construction.
What pressure class is this flange?
The supplied product information identifies the flange as Class 150.
What does RF mean?
RF means Raised Face, referring to the elevated gasket seating surface on the face of the flange.
How is a slip-on flange installed?
The flange slides over compatible pipe, is properly aligned, and is then permanently secured by welding.
Does this flange require welding?
Yes. Slip-on flanges are designed to be welded to the pipe after proper positioning and alignment.
Is a gasket required?
A compatible flange gasket is required between mating flange faces to create the intended sealed connection.
What is the advantage of 304 stainless steel?
304 stainless steel provides excellent general-purpose corrosion and oxidation resistance along with dependable mechanical durability.
What should I verify before ordering?
Confirm the 3" nominal pipe size, Class 150 requirement, raised face configuration, pipe dimensions, gasket requirements, and 304 stainless steel compatibility with the intended service.
Important Ordering & Installation Notes
- This listing is for one Midland 3" 304 Stainless Steel RF Slip-On Flange.
- Nominal pipe size is 3".
- Pressure class is identified as Class 150.
- Material is identified as Type 304 stainless steel.
- Flange configuration is Raised Face (RF).
- Confirm pipe outside diameter and flange dimensions before installation.
- Verify the mating flange has a compatible pressure class and facing configuration.
- Select a gasket appropriate for the flange faces, media, pressure, and operating temperature.
- Use compatible flange bolts, nuts, and washers.
- Ensure the pipe and flange are properly aligned before welding.
- Installation should use appropriate welding procedures for 304 stainless steel.
- Professional welding is recommended for proper joint integrity.
- Do not use flange bolts to pull severely misaligned piping into position.
- Tighten flange bolts using an appropriate cross-pattern sequence for even gasket compression.
- Verify 304 stainless steel compatibility with the intended fluid and operating environment.
- Install according to applicable piping standards, project requirements, and manufacturer recommendations.