DESIGN STANDARDS : BS-5351/API-6D

FACE TO FACE DIMENSION : ANSI B 16.10

MATERIAL OF CONSTRUCTION :

(a) From barstock in carbon steel or stainless steel (304, 316.304L, 316L, 321) Hastalloy B & C & Alloy 20.

(b) Castings in carbon steel tc ASTMA216GR.WCB.