Midland Industries
Midland 150# Carbon Steel RF Blind Flange
- Availability:
- Allow 2-3 Days to Ship
- Weight:
- 0.00 LBS
Description
Midland 150# Carbon Steel RF Blind Flange
Midland Class 150 Carbon Steel Raised Face Blind Flanges are designed to securely close the end of compatible flanged piping systems while providing a durable, removable bolted connection.
Manufactured to ANSI/ASME B16.5 dimensions, these raised face blind flanges are suitable for commercial, industrial, waterworks, maintenance, and general piping applications. Available in sizes from 1/2" through 4", they provide convenient access for system isolation, pressure testing, future expansion, and maintenance.
Product Highlights
- Midland Class 150 blind flange
- Carbon steel construction
- Raised face (RF) sealing surface
- Manufactured to ANSI/ASME B16.5 dimensions
- Compatible with standard Class 150 bolt patterns
- Solid face provides secure piping system closure
- Removable bolted design for maintenance access
- Suitable for pressure testing and system expansion points
- Available in sizes from 1/2" through 4"
- Heavy-duty construction for long service life
Technical Specifications
| Product Type | Blind Flange |
|---|---|
| Brand | Midland |
| Material | Carbon Steel |
| Pressure Class | Class 150 |
| Face Style | Raised Face (RF) |
| Dimensional Standard | ANSI/ASME B16.5 |
| Bolt Pattern | Standard Class 150 |
| Available Sizes | 1/2" Through 4" |
| Primary Function | Flanged Piping End Closure |
| Typical Applications | Commercial, Industrial, Waterworks, Maintenance, and General Piping Systems |
Flange Configuration
Solid Blind Face
The solid center closes the end of the piping system without providing a flow passage through the flange.
Raised Face
The raised sealing surface concentrates gasket compression around the flange bore area for dependable sealing.
Class 150 Bolt Pattern
Precision-machined bolt holes align with compatible Class 150 mating flanges and standard bolting arrangements.
Construction Details
The Midland blind flange is manufactured from durable carbon steel for strength and dependable performance in compatible piping systems.
The solid flange face provides a secure end closure, while the raised face configuration supports proper gasket compression when assembled with a compatible mating flange.
Precision-drilled bolt holes allow straightforward installation and removal during maintenance, system testing, or future piping modifications.
Why Choose a Blind Flange?
Secure System Closure
- Closes unused flange openings
- Provides a pressure-containing end connection
- Useful for temporary or permanent isolation
- Suitable for system testing points
- Maintains a removable bolted connection
Future Service Access
- Can be removed for maintenance
- Supports future system expansion
- Allows inspection access
- Useful for pressure testing
- Avoids permanent welded closure
Raised Face Design
Focused Gasket Compression
The raised face concentrates bolting load onto the gasket sealing area to help provide a dependable flange joint.
Compatible Mating Surface
Use with an appropriately matched flange face and gasket selected for the system pressure, temperature, and media.
Carbon Steel Construction
Mechanical Strength
Carbon steel provides the strength and rigidity needed for demanding commercial and industrial piping applications.
Durable Service
The heavy-duty flange body is designed for long service life when used within appropriate pressure, temperature, and environmental limits.
Typical Applications
Commercial & Water Systems
- Waterworks piping
- Mechanical systems
- Building utility piping
- System isolation points
- Maintenance access points
Industrial Systems
- Plant piping
- Industrial utility systems
- Pressure testing connections
- Future expansion points
- General flanged piping systems
Blind Flange vs. Threaded Cap
Blind Flange
A blind flange closes a flanged connection using bolts and a gasket, making it removable for maintenance or system modification.
Threaded Cap
A threaded cap closes the end of a threaded pipe or fitting and does not use a bolted flange connection.
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 is a blind flange used for?
A blind flange is used to close the end of a flanged piping system while maintaining a removable bolted connection.
What material is this flange made from?
The supplied product information identifies carbon steel construction.
What pressure class is this flange?
The supplied product information identifies it as Class 150.
What does RF mean?
RF means raised face, referring to the elevated sealing surface around the center of the flange.
What dimensional standard does it follow?
The supplied product information identifies ANSI/ASME B16.5 dimensions.
What sizes are available?
The supplied product information identifies sizes from 1/2" through 4".
Can this flange be removed later?
Yes. Because it is installed with bolts and a gasket, it can be removed after the system has been safely isolated and depressurized.
Is a gasket required?
Yes. Use a gasket compatible with the raised face flange, media, pressure, and operating temperature.
What are common uses for a blind flange?
Common uses include piping termination, system isolation, pressure testing, maintenance access, and future expansion points.
What should I verify before ordering?
Confirm nominal flange size, Class 150 bolt pattern, raised face compatibility, system pressure, operating temperature, gasket requirements, and material compatibility before ordering.
Important Ordering & Installation Notes
- This listing is for Midland Class 150 Carbon Steel Raised Face Blind Flanges.
- Available sizes range from 1/2" through 4".
- Confirm the required nominal flange size before ordering.
- Verify ANSI/ASME B16.5 dimensional compatibility.
- Confirm standard Class 150 bolt-pattern compatibility with the mating flange.
- Verify raised face compatibility with the intended flange assembly.
- Select a gasket suitable for the media, pressure, temperature, and flange faces.
- Use appropriate bolts, nuts, and washers for the flange connection.
- Ensure mating flange surfaces are clean and properly aligned before assembly.
- Tighten flange bolts using the recommended cross-pattern sequence.
- Apply the appropriate bolt torque to achieve uniform gasket compression.
- Do not use flange bolts to pull severely misaligned piping into position.
- Fully depressurize and drain the system before removing an installed blind flange.
- Verify system pressure, temperature, and carbon steel compatibility before placing the connection into service.
- Install according to applicable piping standards, project requirements, and manufacturer recommendations.
