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Emco Wheaton E2121

The A-Frame Bottom Loader is specifically designed for efficient bottom loading and unloading operations on both sides of a loading platform. Its versatile design allows adjacent arm crossover capability, making it an ideal solution for facilities that require flexible loading configurations and maximum operational efficiency.

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Emco Wheaton E2121

Overview

Designed primarily for short-range truck loading applications, the A-Frame configuration offers excellent maneuverability while maintaining a compact parking footprint. Thanks to its extended range of motion, the arm stores in a near-vertical position, making it particularly suitable for terminals with limited parking space.

The loading arm is available with either a rigid pipe drop or flexible hose connection, allowing customization based on product requirements and operational preferences. Equipped with D2000 World Series swivel joints and a precision spring-cylinder balancing system, the A-Frame Bottom Loader delivers smooth handling, low maintenance requirements, and long-term reliability.

Key Features

  • Designed for bottom loading and unloading of tank trucks and railcars.
  • Capable of servicing both sides of a loading platform.
  • Adjacent arm crossover design improves loading flexibility.
  • Available with rigid pipe or flexible hose drop configurations.
  • Compact parking profile with near-vertical storage position.
  • E2121 World Series swivel joints provide ultra-low maintenance operation. Spring-cylinder balancing system ensures smooth and effortless handling.
  • Suitable for gasoline, diesel, LPG, NGL, propylene, and chemical products.
  • Long reach capability for improved loading access and efficiency.
  • Optional high-pressure configurations available for LPG and gas transfer applications.

E2121 A-Frame Bottom Loader Specifications

SpecificationDetails
Product TypeA-Frame Bottom Loading Arm
Available Sizes2″, 3″, 4″, and 6″ configurations available
Working PressureTypical operating pressure: 150 psi; high-pressure versions available up to 580 psi (40 bar)
Test PressureDetermined by flange rating, pressure class, and project specifications
Temperature RangeTypical range: 5°F to 140°F (-15°C to 60°C); low-temperature designs available
Design TypeA-Frame articulated bottom loading arm with rigid pipe or hose drop
ConstructionMulti-swivel articulated loading arm with spring-cylinder balancing
ComplianceDesigned to meet industry loading terminal requirements and customer specifications
MaintenanceLow-maintenance design utilizing D2000 World Series swivel joints and replaceable sealing components
Application IndustriesOil & Gas, Fuel Distribution, LPG Transfer, Petrochemical, Chemical Processing, Bulk Liquid Terminals, Rail & Truck Loading Facilities
ComponentMaterial
Flange OptionsCarbon Steel, Stainless Steel, Aluminum, and High-Pressure Flange Configurations
Bearing Module
Heavy-Duty Swivel Joint Assembly with Precision Bearing System (D2000 World Series available on E2121 high-pressure configuration)
Seal OptionsViton Grade A, Buna-N (Nitrile), GFLT, PTFE, UHMWPE Teflon

Source: Emco Wheaton E2121 data sheet

Source: Emco Wheaton A Frame Bottom Loader catalog

E2121 Frequently Asked Questions

What is an A-Frame Bottom Loader?

An A-Frame Bottom Loader is a bottom-loading arm designed to service both sides of a loading rack while providing a compact storage position and efficient product transfer.

What products can be transferred using this loading arm?

The system is suitable for gasoline, diesel, LPG, anhydrous ammonia, NGL, propylene, and various industrial liquid products.

Can the arm be supplied with either hose or pipe connections?

Yes. The secondary drop arm can be configured with either a rigid pipe connection or a flexible hose assembly depending on the application requirements.

Why is the A-Frame design beneficial?

The A-Frame configuration offers excellent reach, crossover capability, and a narrow parking profile, making it ideal for terminals with space constraints.

Is the A-Frame Bottom Loader available for high-pressure applications?

Yes. Specialized configurations are available for high-pressure liquid and gas transfer applications, including LPG, anhydrous ammonia, NGL, and propylene service.

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