Service Metal
304 Stainless Steel 150# Threaded Raised Face Flange
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- Allow 1-2 Days to Ship
- Weight:
- 0.00 LBS
Description
304 Stainless Steel 150# Threaded Raised Face Flange
304 Stainless Steel Class 150 Threaded Raised Face Flanges provide a corrosion-resistant flanged connection for threaded piping systems where welding the flange directly to the pipe is not required. Manufactured from ASTM A/SA182 F304/L stainless steel, these flanges combine strength, corrosion resistance, and dependable performance for industrial, process, water, and general mechanical piping applications.
Manufactured to ASME B16.5 dimensional standards, these Class 150 threaded flanges feature a Raised Face (RF) configuration and an internally threaded bore for installation onto compatible male-threaded pipe. They provide a practical transition from threaded piping to flanged valves, fittings, equipment, and other compatible Class 150 piping components.
Product Highlights
- ASTM A/SA182 F304/L stainless steel construction
- ASME B16.5 dimensional standard
- Class 150 pressure class
- Raised Face (RF) configuration
- Internally threaded pipe connection
- Installs onto compatible male-threaded pipe
- Does not require welding the flange directly to the pipe
- Excellent general corrosion resistance
- Suitable for process, water, mechanical, and general industrial piping
- Provides a transition between threaded pipe and flanged piping components
Technical Specifications
| Product Type | Threaded Flange |
|---|---|
| Material | 304/L Stainless Steel |
| Material Specification | ASTM A/SA182 F304/L |
| Pressure Class | Class 150 |
| Face Type | Raised Face (RF) |
| Dimensional Standard | ASME B16.5 |
| Connection Method | Internally Threaded Bore |
| Construction | Forged Stainless Steel |
| Pipe Connection | Compatible Male-Threaded Pipe |
| Primary Applications | Process, Water, Mechanical and General Industrial Piping |
Construction Details
These threaded flanges are forged from dual-certified ASTM A/SA182 F304/L stainless steel for strength, durability, and corrosion resistance in demanding piping environments.
The raised face sealing surface is precision machined to ASME B16.5 dimensional requirements to provide a dependable gasket seating surface when installed with compatible Class 150 raised face flanges and piping components.
The internally threaded bore allows the flange to engage compatible male pipe threads without requiring the flange itself to be welded directly to the pipe. This provides a practical flanged connection for threaded piping systems while retaining the serviceability of a bolted flange joint.
Why Choose a Threaded Flange?
Threaded Installation
- Threads directly onto compatible male-threaded pipe
- Does not require welding the flange directly to the pipe
- Useful where field welding is undesirable or impractical
- Provides a transition from threaded piping to flanged components
- Allows the bolted flange joint to be disassembled for service
304/L Stainless Steel Construction
- Excellent general corrosion resistance
- Suitable for many industrial environments
- Useful in process and water piping applications
- Provides durable stainless steel construction
- Designed for dependable long-term piping service
Performance Features
Class 150 Design
Designed for use in compatible ASME B16.5 Class 150 piping systems with appropriate mating flanges, gaskets, bolting, and associated piping components.
Threaded Bore
The internally threaded bore allows the flange to install onto compatible male-threaded pipe without requiring a welded pipe-to-flange connection.
Raised Face Configuration
The Raised Face (RF) configuration provides an elevated gasket seating surface for use with compatible raised face mating flanges and gasket arrangements.
Common Applications
Industrial & Process Piping
- Process piping systems
- Industrial water systems
- General plant piping
- Utility piping
- Corrosion-resistant piping assemblies
Equipment & Mechanical Connections
- Flanged valves
- Strainers
- Pumps
- Mechanical equipment
- General threaded-to-flanged piping transitions
How a Threaded Flange Works
A threaded flange contains internal pipe threads that engage compatible external threads on the mating pipe. The flange is threaded onto the pipe until the required engagement and orientation are achieved.
Once installed, the flange provides a conventional bolted connection point for joining the threaded piping system to a compatible mating flange, valve, fitting, strainer, pump, or other flanged equipment.
This arrangement can be useful where welding is undesirable, unavailable, or restricted by project requirements while a removable bolted flange connection is still required.
Raised Face Flange Design
This threaded flange uses a Raised Face (RF) configuration. The raised gasket seating surface projects above the surrounding flange face and is designed to concentrate gasket loading around the sealing area when the flange joint is properly assembled.
Always verify that the mating flange, gasket, bolting, and related components are compatible with the flange size, pressure class, material, face configuration, service conditions, and project requirements before installation.
Installation Considerations
- Confirm the correct nominal pipe size before ordering or installation.
- Verify that the pipe thread is compatible with the threaded flange bore.
- Confirm that mating flanges and components are suitable for Class 150 service.
- Use a gasket suitable for the Raised Face configuration and piping service.
- Use appropriate flange bolts, studs, nuts, and associated hardware.
- Verify material compatibility with the process fluid and operating environment.
- Confirm applicable pressure and temperature requirements before installation.
- Use thread-sealing practices appropriate for the piping material and service conditions.
- Confirm adequate thread engagement before assembling the flange joint.
- Avoid excessive force that could damage or gall stainless steel threads.
- Inspect flange sealing surfaces before assembly.
- Align mating flanges before tightening flange bolting.
- Follow applicable piping codes, project specifications, and installation procedures.
- Installation should be completed by qualified personnel familiar with threaded and flanged piping systems.
Product Selection Considerations
Pipe & Thread Compatibility
Threaded flanges must be matched with compatible threaded pipe. Confirm the nominal pipe size, thread specification, material, and required thread engagement before ordering or installation.
Service Conditions
Verify that ASTM A/SA182 F304/L stainless steel, the Class 150 pressure class, and the Raised Face configuration are suitable for the intended operating pressure, temperature, process fluid, and piping system.
Product Documents
Reference the available pipe sizing information, Service Metal specification sheet, and Certificate of Conformance for additional product and piping information.
Need Help Selecting a Stainless Steel Flange?
Our industrial PVF specialists can help review your flange size, pressure class, material, face type, thread requirements, piping application, and other project requirements before you order.
Frequently Asked Questions
What is a threaded flange used for?
A threaded flange is used to create a bolted flanged connection on compatible threaded pipe without requiring the flange itself to be welded directly to the pipe.
What material is this threaded flange made from?
This flange is manufactured from ASTM A/SA182 F304/L stainless steel.
What pressure class is this flange?
This product is a Class 150 threaded flange designed to conform to applicable ASME B16.5 dimensional requirements.
What does Raised Face or RF mean?
Raised Face refers to the flange face configuration. The gasket seating surface projects above the surrounding flange face and is designed for use with compatible raised face mating components and gasket arrangements.
Does a threaded flange require welding?
The primary pipe-to-flange connection is threaded, so the flange does not normally require welding directly to the pipe. Project specifications and applicable piping requirements should always be confirmed before installation.
How does a threaded flange connect to the pipe?
The flange contains an internally threaded bore that engages compatible male pipe threads. Proper pipe size, thread compatibility, and thread engagement should be confirmed before installation.
Can this flange be connected to a flanged valve?
Yes. It can be connected to a compatible flanged valve or other component when the nominal size, Class 150 designation, raised face configuration, bolt pattern, gasket, and dimensional requirements are compatible.
What standard does this flange conform to?
This flange is intended to conform to applicable ASME B16.5 dimensional requirements.
Where are stainless steel threaded flanges commonly used?
Typical applications include process piping, industrial water systems, utility piping, general plant piping, mechanical systems, and other applications requiring a threaded-to-flanged connection.
What should I verify before ordering?
Confirm the nominal pipe size, thread requirements, Class 150 designation, Raised Face configuration, ASTM A/SA182 F304/L stainless steel material, mating flange compatibility, gasket requirements, bolting requirements, and operating conditions before ordering.
Important Ordering Notes
- Product type: Threaded Raised Face Flange.
- Material: ASTM A/SA182 F304/L stainless steel.
- Pressure class: Class 150.
- Face configuration: Raised Face (RF).
- Connection method: internally threaded bore.
- Designed for installation on compatible male-threaded pipe.
- Dimensions conform to applicable ASME B16.5 requirements.
- Confirm nominal pipe size and thread compatibility before ordering.
- Verify mating flange, gasket, and bolting compatibility.
- Confirm material compatibility with the intended process fluid and operating environment.
- Verify pressure and temperature requirements for the specific application.
- Consult applicable piping codes and project specifications before installation.
- Installation should be completed by qualified personnel.
