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Loading arms for flexible and safe LPG and NH3 transfers

Loading arms are great applications to ensure a safe transfer system of pressurised gasses like LPG and NH3 from one tank to another. The loading arms are frequently used for stationary tank loading/unloading of railway tanks and trucks.

Product description

The loading arms come in single or dual arm loading systems. Dual arm systems are designed for handling both the liquid and the vapour phase of the gasses at loading stations. The single arms serve a better purpose in closed circuit transfers.

Product specifications icon Specifications

Gas types: LPG (Propane, Butane), NH3 (Ammonia, Anhydrous Ammonia), industrial gasses
Connections: Flange, ACME, Dry coupling
Type: ANSI, DIN, ACME, Dry coupling
Pressure range:
Working: 10 bar (145 psi)
Design: 25 bar (362.5 psi)
Test: 40 bar (580 psi)
Flow rate: Up to 1380 lpm (364.5 gpm)
Temperature range: -25˚C to +65˚C (-13˚F to +149˚F)
Sizes and range: 1½" to 3-1/4"
Series: 1802 series
Standards: UL listed, CE-ATEX, CE-PED, EAC

*Materials and specifications are subject to generalisation. Our experienced people are ready to help you find the correct fit for your application. Find the contact information for your country here.

Product material icon Material 

Arm:  Carbon steel, stainless steel (AISI304/AISI316)
Seals: HNBR, FKM, FFKM, EPDM, PTFE

Product features icon Features

  • Right-hand layout
  • Boom and secondary pipe
  • Double swivel joints (F-50)
  • Compressed spring piston to balance system
  • Emergency release valve (ERC)

Did you know?

  • The loading arm is available in a left-hand layout
  • ProSupply can assist with special loading arm and terminal connections, split type joints and temperature configurations
  • Stations can be supplied with a stand post, designed for the dimensional needs of any plant
  • Loading arms can be configured for top, bottom or side filling
  • The loading arms are fold-away systems that allow compact storage

Alternative products icon Alternative products 

  • Rubber hoses
  • Composite hoses