Wing Unions for Medium Pressure Service 2000 - 4000psi

Feature-

Metal-to-metal seal with a resilient O-ring in the male sub, the replaceable O-ring extends union life and protect the metal-to-metal against corrosion.

Figure 206

Recommend for air, water, and oil or gas service to 2000psi cold working pressure manifold and line connections and corrosion service

Size from 1"-10"

Buna-N O-ring in male sub provides an additional sealing and protect metal-to-metal seal

API standard thread and butt-weld end connection available for 2" and above

Blue Nut & Grey Sub

Subs and nuts of Fig.206 are interchangeable with Fig.200

Figure 207 Blanking Union

• Recommend for air, water, and oil or gas service to 2000psi CWP to seal manifold connections and protect union thread
• Size 3", 4", 6"
• Buna-N O-ring in male sub provides an efficient seal closure
• API standard thread and butt-weld end connection available
• Blue Nut & Grey Sub
• Subs and nuts of Fig.207 are interchangeable with Fig.200, Fig.206

• Figure 211 Insulating Union

• Recommend for 2000psi cold working pressure production systems with electrolytic corrosion problems
• Size from 1"-4"
• Laminated insulating rings provide 35 million Ohms resistance across the union
• Buna-N O-ring in male sub provides a positive primary seal and seal ring in female sub as a secondary seal
• All insulating rings, O-ring and seal ring can be replaced
• API standard thread and butt-weld end connection available
• Blue Nut & Grey Sub

•  

  Figure 400

• Recommend for 2 1/2"- 12" air, water, oil or gas manifold and line connection, general service and sour gas service
• 4000psi CWP for 4" below and 2500 psi over 4" to 12"
• Ball and cone seating surface for easy alignment and dependable pressure seal
• 2" available with a lip-type seal
• API standard thread and butt-weld end connection available
• Black Nut & Red Sub

• Pipe Size		Length		Countersink		Nut radius		Materal		Weight
  								Nut	Sub
  in	mm	in	mm	in	mm	in	mm	Black	Red	Ibs	kgs
  2	50.8	53/16	131.8	1/4	6.4	39/16	90.5	SF	SF	11.0	5.0
  3	76.2	61/4	158.8	3/8	9.5	43/16	106.4	SF	SF	19.25	8.7
  4	101.8	81/8	206.4	3/8	9.5	5	127.0	SF	SF	32.0	14.