Fig. 600. Silver Subs - Black Nut
These unions have wide range of applications including steam service and line
connections. These unions are provided with a bronze seat in the female for the
effective sealing and prevention of rust formation. Suitable for 6000 PSI CWP.
Fig 602. Orange Subs - Black Nut
These unions are recommended for manifold and line connections truck
mounting and in mud services. This union has resilient lip-type seal for positive
sealing and also protects secondary metal - to metal seal. Suitable for 6000
PSI.
Fig 1002. Blue Subs - Red Nut
These unions are designed for high pressure systems like choke and kill lines,
cementing , acidizing, testing and truck mounted system. This union has a liptype
seal made of nitrile rubber and subs made of alloy steel, suitable for 10,000
PSI.
Fig 1003. Green Subs - Black Nut
These banking unions have a resilient 'O' ring in the blanking cap to
provide an efficient and leak-proof seal suitable for 2000 PSI CWP.
Fig 1004. Red Nut - Grey Subs
These unions protect against electrolytic action. There is no metal - to -
metal contact between the subs. A resilent seal ring in the female sub
provide additional sealing and protection from corrosion. Suitable for
2000 PSI CWP.
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.
NOTE:
1. 2" Fig 2202 is interchangeable with Fig 2" 2052/2252 & 2 1/2" 2052/2252 of other reputed
makes.
2. Dimension 'A' will vary depending upon size of weld preparation.
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