For Threaded Flange Class 300, ASME B16.5 specifies that its design must be compatible with American standard tapered pipe threads (NPT), and its sealing performance must meet the requirements of medium-pressure working conditions. It must also be precisely matched with pipes, valves, and fittings of the same standard and pressure rating. HT PIPE supply all different types and scales of flanges. Please feel free to contact us for further product information and pricing.
Threaded Flange Class 300 ASME B16.5 Core Structural Features
The core structure of this type of flange is a "flange plate + internal thread." The flange plate has evenly distributed bolt holes for connection and fastening with the mating flange, the internal thread precisely matches the external thread of the pipe, achieving media sealing through threaded sealing (with sealant or PTFE tape), eliminating the need for welding.
Its neck design is reasonable, enhancing the flange's load-bearing capacity and deformation resistance, adapting to the medium-pressure working conditions of Class 300. The flange thickness and bolt hole parameters are also standardized, ensuring interchangeability and connection reliability.
Threaded Flange Class 300 ASME B16.5 Main Advantages
Convenient Installation: No welding equipment or professional welders are required. Installation can be completed on-site simply through threaded connection, significantly shortening the construction period and reducing construction costs, especially suitable for scenarios where welding is not feasible (such as flammable and explosive environments).
Flexible Disassembly: Threaded connections can be repeatedly disassembled, facilitating pipe maintenance, repair, and equipment replacement without cutting the pipe, reducing damage to the piping system and improving operation and maintenance efficiency.
Suitable for Small-Diameter Pipes: Particularly suitable for small-diameter pipes from NPS 1/2 to NPS 6 (DN15 to DN150), providing stable sealing performance and avoiding the difficulties and potential defects associated with welding small-diameter pipes.
High Degree of Standardization: Dimensions, materials, and pressure ratings all comply with the ASME B16.5 standard, ensuring strong compatibility and interchangeability with valves, fittings, and equipment interfaces of the same standard, facilitating project selection and bulk purchasing.
Threaded Flange Class 300 ASME B16.5 Size
Notes:
The thread conforms to ASME B1.20. 1 NTP threads. (The onIy exceptions are smaII maIe and femaIe pIain face threaded fIanges which use NPSL Iocknut threads .)
CIass 300 and higher threaded fIanges are counter-bored. Threads are chamfered to the counterbore at an angIe of 45. (approx).
Weights are based on manufacturer's data and are approximate.
