Top loading arms for Liquefied gases
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      The comprehensive range of OPW Top- and Bottom loading arms for liquefied gases are designed to offer maximum flexibility and safety during (off)loading operations. Applications are found in the transfer of LPG, Gas condensate and similar media into Railcars or Tank trucks. Connections can be made at the rear, side or top. Typically consisting of a product and vapour arm the set is mounted on a stand post. A set generally consists of a 3”/dn80 product arm and 2”/dn50 vapour arm. For higher throughputs a 4”/dn100 product arm with 3”/dn80 vapour arm is available.
      Shut-off or loading valve, purge- or relief line, safety break away coupler as well as position indication and parking lock are often selected as useful options. Coupling systems to accommodate any customer standard are available.
      When not in use the unit can be folded together for convenient, compact storage away from the traffic flow.
  • Features/Benefits
  • Dimensions
  • Production Specification
  • Downloads
  • Related products

Features and Benefits

• Dimensioned to suit customers working envelope
• Easy to handle, smooth operation
• Compact storage when not in use
• Balanced end swivel assembly for easy handling
• Swivels equipped with grease nipple
• Durable construction
• Available in 2” / dn50, 3” / dn80 , 4” / dn100 with ASA or DIN flanges
• Inverted intermediate swivel and/or inlet orientation possible
• Boom arm can be made with upwards or downwards slope
• Wide range of swivel seal material available
• Pre-balanced at the factory to minimise installation and commissioning time
• Alternative materials of construction 316/316L Stainless Steel

Dimensions

NE07073_A.pdf
NE07074_A.pdf


Size
Dimensions (in mm)
  D
G
S
T
3” x 2” dn80 x dn50
1500
1000
1400
1500
4” x 3” dn100 x dn80
1500
1000
1400
1500
Dimensions are indicative, other Dimensions available

Production Specification

NE07073_A.pdf
NE07074_A.pdf

 

Materials of construction
Inlet swivel
Carbon steel
Intermediate swivel
Carbon steel
End swivel assembly
Carbon Steel
Swivel seals
Buna, EPDM, Fluorocarbon, PTFE
Boom arm
Carbon Steel
Primary arm
Carbon Steel
End assembly
Carbon Steel

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With OPW, you have many options at your disposal for your loading arm termination connections. From the original quick-disconnect Kamlok® coupling to our Epsilon™ dry disconnect coupling, we have a coupling to meet your needs.