COMPOSITE WELD NECK FLANGES
Weld Neck Stub Ends and Backing Flanges
Type and Construction
The weld neck stub ends are in accordance with EEMUA 234, Section 1A for 16 and 20 bar systems. The range of sizes covered is ½ in./16 mm to 36 in./914 mm. Other sizes are available on request. The stub ends are subdivided in two types short (Type S) based on DIN 86037 and long (Type L) based on MSS SP-43 suit the appropriate pipe dimension. The Type L stub ends are included to facilitate the attachments of this type of flange to butt weld welding fittings in accordance with EEMUA-234.
Dimensions are based on EEMUA-234, Section 1A, Tables 1.2-1.3.
The tolerances are based on EEMUA–234, Section 1A, Table 1.5.1.
The stub ends with S1<3mm are supplied with plain weld ends. Larger dimension are supplied with the weld bevel of 37 ½°±2 ½°.