Shanghai Sunry Petroleum Equipment Co.
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API 6A Valves & Parts

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6BX and 6B Flanges

6BX and 6B Flanges (welding neck flanges, blind flanges, target flanges and test flanges) are fully conformed to API 6A and made of modern alloy steel via advanced manufacturing techniques. They are robust and high cost performance.

6B flanges are of the ring joint type and are not designed for face-to-face make-up. The connection make-up bolting force reacts on the metallic ring gasket

6BX flanges are of the ring joint type and designed with a raised face. Depending on the tolerances, the connection make-up bolting force may react on the raised face of the flange when the gasket has been properly seated. This support prevents damage to the flange or gasket from excessive bolt torque.

6BX and 6B Welding Neck Flanges

6B weld neck flanges conforming to Table 36, Table 37 and Table 38 of API 6A (19th Edition) are available.

6BX weld neck flanges conforming to Table 42 or Table 43 of API 6A (19th Edition) are available.

API 6A welding neck flanges
6B welding neck flange 6BX welding neck flange

6BX and 6B Blind Flanges

6B blind flanges conforming to Table 36, Table 37 and Table 38 of API 6A (19th Edition) are available.

6BX blind flanges conforming to Table 46 of API 6A (19th Edition) are available

API 6A 6BX blind flanges
6B blind flange 6BX blind flange 6BX blind flange with fluid cushion counterbore
 

6BX Target Flanges, Lead Filled

Target Flange: a special configuration of blind flange used downstream, facing upstream, to cushion and reduce the erosive affect of high velocity abrasive fluid. This flange has a counter bore filled with lead as illustrated below.

Target Flanges conforming to Table 44 and Table 45 of API 6A are available.

API 6A 6BX target flanges

6BX and 6B Test Flanges

6B test flanges conforming to Table 36, Table 37 and Table 38 of API 6A (19th Edition) are available.

6BX test flanges conforming to Table 44 and Table 45 of API 6A are available.

API 6A 6B test flanges API 6A 6BX test flanges
6B test flange 6BX test flange

pdfAPI 6A 6B and 6BX Flanges