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Fig 1502. Blue Nut - Pink Subs
These unions are widely used in cementing, manifold and other services wherein extra high pressures of 15,000 PSI CWP are encountered. These unions are provided with replaceable seal ring.
Fig 2002. Green Nut - Grey Subs
These unions are provided with replacement lip-type seal and are recommended for choke and kill lines, cementing, acidizing and testing services for pressure up to 20,000 PSI CWP.
Fig 2202. (H2S) - Olive Green
These unions are specially designed for sour gas service in accordance with NACE Std. MR-01-75 and API Std. RP-14E for pressure up to 15000 PSI CWP. Dimensions identical with Fig-2002 above.