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Home » Products » Steel Flanges » Blind Flanges

Blind Flanges

Blind Flanges
Blind Flanges
Product Code : 01
Product Description

 Blind Flanges

A Blind Flange is a solid disk used to block off a pipeline or to create a stop. The blind flange is machined in the same manner as a regular flange with the mounting holes around the perimeter and the gasket sealing rings machined into the mating surface. The difference is that a blind flange has no opening to allow fluid to pass through. The blind flange can be inserted between two open flanges and used to block off the flow of liquid through a pipeline.

Without the blind flange it would be difficult to perform maintenance or repairs on a pipeline. The flow would need to be shut off at the nearest valve, which could be miles away from the repair area. Valves are also very expensive and are prone to sticking. The blind flange is a much more cost efficient way of sealing a pipe.

When a pipeline is being constructed, a blind flange is often incorporated into the final length of pipe. This design allows for expansion or continuation of the pipeline by simply adding onto the final flange. This holds true for the addition of tees in the pipeline as well. A tee can be installed and then blocked in order to leave the option of running a pipe at a later date. 

ClassSizeClassSize
1501/2" to 60"9001/2" to 48"
3001/2" to 60"15001/2" to 36"
6001/2" to 48"22501/2" to 36"


 

 

 

Above 600 class can also be forged according to your requirements. + ANSI B16.5/ ASME B16.47 Series A (MSS SP44) & Series B (API 605) + Material - ASTM A105, LF2 In addition  Kisaan Steels provides: + 100% machined surface as per B16.5 + 100% traceability and material test reports. 

Dimension Standards :

ANSI B 16.5, B 16.1, B 16.47 Series 'A' and 'B', MSS SP-44, JIS SK, 10K, 16K, DIN, BS 4504 or any other as per customer's requirements.


Material Grades :

ASTM A-105, ASTM A-350 LF-2, A182 F-304/F-304H/F-304L/ F-316L/ F-321/ F-347/F-316Ti, A 181 F-1/F-5/F-11/F-22, ASTM A182 F-5/F-9/F-11/F-22, AISI 304/410/420/3042 or any other IS, DIN, JIS or international standards in Carbon/ Alloy/ Stainless Steel.


KISAAN STEELS PRIVATE LIMITED

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