Bleed Rings: Where and Why You Should Use Them
为你的管道系统考虑出血环?Here are common uses and important factors to consider…
While188app彩票 and188abc金博宝 are popular options to meet the needs of complex piping systems,>/p>188appcob -- also known as drip rings, bleeder rings, vent rings, or test inserts -- offer unique benefits for a range of processes and piping systems.
In this guide, we’ll cover both what bleed rings are, common uses, and what you should consider to ensure you find the perfect solution for your needs.
What Are Bleed Rings?
Able tobe matchedwith any flange type, bleed rings are a ring section with one or moreradialpipe connections designed to fit between standard flanges with the bolt circle, using conventional gasket materials.
Standard bleed rings are manufactured with at least one 1/2-inch or 3/4-inch tapping to allow easy connection of valves and instruments.
While bleed rings with multiple taps or alternative tap sizes are available, these may impact the overall thickness of the ring.
188appcob are available in a variety of materials such as stainless steel, carbon steel and special alloys as required.
Bleed Ring Usage
Bleedrings are commonly usedin place of orifice flanges.
They are easier to install and more affordable than orifice flanges --particularlyin brownfield operations where hazardous materials or contamination are concerns.
Typical uses for bleed rings include providing easy access to drain piping, taking samples, or attaching instruments.
They can also reduce or dispose of pressure before removing a flange through the use of valves or blind flanges.
This procedure is common when replacing leaky valves in a piping system.
Bleed Ring Sizing and Fitting
While exact requirements will vary based upon your intended use, environment, and materials involved, bleed ringsare producedusing ANSI/ASME standards and188appcob.
Options range from classes 150# to 2000#.
Most are 1.5-inches thick, however, thicker bleed rings are available for use with additional hardware to secure the connection between components if needed. This can allow for a larger tap size or meet other needs.
Apart from sizing, you’ll also want to ensure that the finish and shape of the gasket surfaces meet the interfacing requirements of your intended application.
Tappings are available in both threaded and socket weld varieties as well to ensure compatibility and safe operation of any instruments or valves you wish to connect.
You can find out more about the Bleed Rings offered by Unified Alloys in ourBleed Ring Dimensional Data section.Example of threaded and socket weld connections on a bleed ring Example of an assembled bleed ring, complete with flanges and bolt-up accessories
Bleed Ring Standards and RegulationsFor more information on bleed ring standards, consult the followingASME standards:
ASMEB16.5- Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard
ASMEB16.20- Metallic Gaskets for Pipe Flanges: Ring-Joint, Spiral-Wound, and Jacketed
ASMEB16.47- Large Diameter Steel Flanges: NPS 26 Through NPS 60 Metric/Inch Standard
It’s also important to consider that despite being comparable to very thick, solid metal gaskets, bleed rings may require registration as a fitting and a CRN depending on your intended usage and use environment.
Serving industries across North America for more than four decades, Unified Alloys offers a188appcob to meet the needs of your piping process or system design. If you’re unsure how to implement bleed rings in your project or have questions about your specific needs, our expert analysts areavailable to help you find the ideal solution.