ASME B16.47 Series B Class 900 Blind Flange

YANHAO ASME B16.47 Series B Class 900 Blind Flanges are made of high-quality materials such as stainless steel, carbon steel and alloy steel. The flanges we produce are designed to meet the strict specifications stipulated by ASME and are suitable for various applications in the oil and gas, petrochemical and power generation industries.

We also provide customized services to meet customer needs for flanges of special types and apertures. If you have specific technical specifications or design requirements, please feel free to contact our professional team and we will provide you with a personalized solution.

Custom Flanges

Class 900 dimensions | ASME B16.47 Series B Flange

Nominal Pipe SizeOutside Diameter (O)Bolt Circle (W)Raised Face Diameter (R)Number of HolesDiameter of HolesMinimum Thickness (T)Approximate Weight (lbs)
2640.2535.5030.00202.626.062185
2843.5038.2532.25202.886.562762
3046.5040.7534.50203.126.933334
3248.7543.0036.50203.127.313865
3451.7545.5039.00203.387.684575
3653.0047.2540.50243.127.944963
3857.5050.7543.25203.628.506253
4059.5052.7545.75243.628.816940
4261.5054.7547.75243.629.127675
4464.8857.6250.00243.889.568955
4668.2560.5052.50244.1210.0610,426
4870.2562.5054.50244.1210.3811,398
  • All dimensions are in inches.
  • These flanges will be furnished with a 1/4″ raised face unless otherwise specified. For more alternate flange facings, please click here!

Blind Flange

Blind Flanges are flanges without a central hole and are also commonly known as Blank Flanges or Flange Covers. The primary function of blind flanges is to isolate pipelines or close off equipment ports. They are typically used in industry for pipeline blocking, segmental sealing of pipelines, preventing intermixing of media, leaks.

Learn More

ASME B16.47 Forged Flanges FLANGE CLASSES

Choose your pressure class below

About YANHAO

Aerial view of YANHAO Factory
Aerial view of YANHAO Factory

YANHAO is a flange manufacturer located in Hebei Province, China. It is one of the few professional flange suppliers in China.

We have many years of experience in flange production and have multiple flange production lines. We have sufficient stock of raw materials, rich inventory, fast delivery, and can ship within three days. At the same time, the price is affordable. You are welcome to consult and purchase!

In addition, we can provide a variety of bespoke flanges and pipe fittings. Customers can give drawings or samples, and our company will produce them to fit your specific requirements.

Check Our Certificates