Service Metal
316 Stainless Steel 150# Raised Face Threaded Flange
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- Allow 1-2 Days to Ship
- Weight:
- 0.00 LBS
Description
316 Stainless Steel 150# Raised Face Threaded Flange
316 Stainless Steel Class 150 Raised Face Threaded Flanges provide a convenient mechanical flange connection for piping systems where welding is not preferred or practical. Manufactured from ASTM A/SA182 F316/L stainless steel, these flanges combine mechanical strength, durability, and enhanced corrosion resistance for demanding industrial, chemical, water treatment, food processing, marine, and general process piping applications.
Designed to conform to ASME B16.5 dimensional requirements, each threaded flange features an internally threaded pipe connection and a precision-machined Raised Face (RF) sealing surface. The threaded configuration allows the flange to connect directly to compatible externally threaded pipe while retaining a removable bolted flange joint for maintenance, inspection, equipment access, or piping changes.
Product Highlights
- ASTM A/SA182 F316/L stainless steel construction
- ASME B16.5 dimensional configuration
- Class 150 pressure class
- Threaded pipe connection
- Raised Face (RF) sealing surface
- Forged stainless steel construction
- No flange-to-pipe welding required
- Enhanced corrosion resistance
- Precision-machined gasket sealing face
- Removable mechanical pipe connection
- Suitable for industrial, chemical, water treatment, food processing, marine, and general process piping
Technical Specifications
| Product Type | Threaded Flange |
|---|---|
| Material | 316/L Stainless Steel |
| Material Specification | ASTM A/SA182 F316/L |
| Pressure Class | Class 150 |
| Connection Type | Threaded |
| Face Type | Raised Face (RF) |
| Dimensional Standard | ASME B16.5 |
| Construction | Forged Stainless Steel |
| Primary Function | Mechanical Threaded Pipe Connection with Removable Bolted Flange Joint |
| Typical Applications | Industrial, Chemical, Water Treatment, Food Processing, Marine, Mechanical and General Process Piping |
Construction Details
These threaded flanges are forged from dual-certified ASTM A/SA182 F316/L stainless steel for strength, durability, and enhanced corrosion resistance in demanding piping environments.
The raised face sealing surface is precision machined to applicable ASME B16.5 dimensional requirements to provide a dependable gasket sealing surface when installed with compatible Class 150 raised face flange components.
The internally threaded connection allows the flange to engage compatible externally threaded pipe without welding the flange directly to the pipe. This provides a mechanical pipe connection while retaining the removable bolted flange joint needed for equipment access, inspection, maintenance, or piping modifications.
Why Choose a 316 Stainless Steel Threaded Flange?
Enhanced Corrosion Resistance
- Manufactured from 316/L stainless steel
- Provides improved corrosion resistance in many demanding environments
- Well suited for chemical and water treatment systems
- Useful in coastal and marine environments
- Suitable for food processing and general industrial service
Mechanical Threaded Connection
- Connects directly to compatible threaded pipe
- No flange-to-pipe welding required
- Useful where welding access is limited
- Provides a removable pipe connection
- Retains a standard bolted flange joint for servicing
Performance Features
Class 150 Design
Designed for use as part of a compatible ASME B16.5 Class 150 flange system with appropriate mating flanges, gaskets, bolting, threaded piping, and associated components.
Raised Face Sealing
The precision-machined raised face provides the gasket sealing surface required for use with compatible raised face gaskets and mating Class 150 flange components.
316/L Stainless Steel
ASTM A/SA182 F316/L stainless steel provides a combination of mechanical strength, durability, and enhanced corrosion resistance for demanding piping service.
Common Applications
Industrial & Process Piping
- Chemical processing systems
- Water and wastewater treatment
- Food and beverage processing
- Marine and coastal piping
- General industrial process piping
Threaded Piping Systems
- Mechanical piping systems
- Equipment and valve connections
- Utility piping
- Systems where welding is restricted or undesirable
- Piping assemblies requiring removable connections
How a Threaded Flange Works
A threaded flange contains internal pipe threads that engage compatible external threads on the adjoining pipe. The flange is rotated onto the pipe until the required thread engagement and orientation are achieved.
Because the flange is connected mechanically rather than by welding, threaded flanges can be useful where field welding is impractical, restricted, or unnecessary for the intended piping service.
Once installed on the pipe, the flange is bolted to a compatible mating flange, valve, vessel, or equipment connection using an appropriate gasket and bolting arrangement.
Raised Face Flange Design
The Raised Face (RF) configuration concentrates the gasket sealing area on the machined raised portion of the flange face. When properly assembled with a compatible gasket and mating raised face flange, bolt loading compresses the gasket between the sealing surfaces.
Always confirm that the mating flange, gasket, bolting, threaded pipe, and associated components are compatible with the flange size, Class 150 designation, material, service conditions, and applicable piping-system requirements.
316 Stainless Steel Construction
316/L stainless steel contains molybdenum, which contributes to improved resistance to pitting and localized corrosion in many environments compared with 304-series stainless steel.
This makes 316/L stainless steel a common material choice for chemical processing, water treatment, marine, coastal, food processing, and other piping applications where increased corrosion resistance is desirable.
Actual material suitability depends on the process media, chemical concentration, temperature, pressure, environmental exposure, and applicable piping-system requirements. Compatibility should always be verified for the intended service.
Threaded Flange Installation Considerations
- Confirm the correct nominal pipe size before installation.
- Verify that the pipe thread and flange thread are compatible.
- Inspect pipe and flange threads for damage, contamination, or deformation before assembly.
- Use thread sealant or sealing methods appropriate for the piping material and service when required.
- Avoid cross-threading during flange installation.
- Confirm sufficient thread engagement according to applicable piping requirements.
- Verify that the mating flange is compatible with the Class 150 raised face configuration.
- Select a gasket suitable for the raised face configuration and process conditions.
- Use appropriate flange bolts, studs, nuts, and related hardware.
- Confirm material compatibility with the process fluid and operating environment.
- Verify applicable pressure and temperature requirements before installation.
- Properly align mating flanges before tightening bolting.
- Follow applicable threaded-piping, flange-bolting, gasket-installation, and piping-code requirements.
- Installation should be performed by qualified personnel familiar with threaded stainless steel piping systems.
Product Selection Considerations
Size & Thread Compatibility
Confirm the required nominal pipe size, thread configuration, and Class 150 flange designation before ordering. The flange threads must be compatible with the adjoining threaded pipe.
Material & Service Conditions
Confirm that ASTM A/SA182 F316/L stainless steel and the threaded connection are suitable for the process fluid, operating environment, pressure, temperature, and applicable piping-system requirements.
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, thread requirements, pressure class, material, face type, piping application, corrosion-resistance requirements, and other project requirements before you order.
Frequently Asked Questions
What is a 316 stainless steel threaded flange used for?
A threaded flange is used to connect compatible threaded pipe to a bolted flange joint without welding the flange directly to the pipe. It is commonly used in mechanical, utility, industrial, and process piping systems.
What material is this threaded flange made from?
This flange is manufactured from ASTM A/SA182 F316/L stainless steel.
What pressure class is this flange?
This product is a Class 150 threaded flange designed for use with compatible Class 150 flange-system components.
Does a threaded flange require welding?
No. A threaded flange connects to compatible externally threaded pipe through its internal pipe threads. Welding the flange directly to the pipe is not required.
What does Raised Face or RF mean?
Raised Face refers to the flange sealing configuration. The gasket sealing area is located on a machined raised portion of the flange face that mates with a compatible raised face flange and gasket.
What standard applies to this flange?
The flange is designed around applicable ASME B16.5 dimensional requirements for Class 150 flanged piping components.
What is the advantage of a threaded flange?
A threaded flange provides a mechanical pipe connection without requiring flange-to-pipe welding. This can simplify installation where welding equipment, permits, or access are limited.
What is the advantage of 316 stainless steel?
316/L stainless steel generally provides improved resistance to pitting and localized corrosion in many demanding environments compared with 304-series stainless steel.
What gasket should be used with this flange?
The gasket must be compatible with the Class 150 raised face flange configuration as well as the process fluid, pressure, temperature, and other operating conditions. Verify gasket requirements for the specific piping system before installation.
How do I determine the pressure and temperature rating?
Pressure and temperature capabilities depend on the applicable ASME B16.5 requirements, material specification, flange size, threaded piping limitations, and service conditions. Verify the allowable rating for the specific installation before placing the flange into service.
Important Ordering Notes
- Product type: Raised Face Threaded Flange.
- Material: ASTM A/SA182 F316/L stainless steel.
- Pressure class: Class 150.
- Connection type: Threaded.
- Face configuration: Raised Face (RF).
- Designed around applicable ASME B16.5 dimensional requirements.
- Confirm the required nominal pipe size before ordering.
- Verify thread compatibility with the adjoining pipe.
- Confirm compatibility with the mating flange, gasket, bolting, and associated piping components.
- Confirm 316/L stainless steel compatibility with the intended process fluid and operating environment.
- Pressure and temperature requirements should be verified for the specific installation.
- Confirm that a threaded flange connection is appropriate for the intended service and applicable piping code.
- Installation should be performed by qualified personnel familiar with threaded flanged piping systems.
