Emco Wheaton E2033
- Home
- Loading Arms & Couplings
- Emco Wheaton Loading Arms
- Emco Wheaton E2033

Bottom Transfer Loading Arms are engineered for the safe and efficient bottom loading and unloading of road tankers and railcars, particularly in situations where precise vehicle positioning is difficult to achieve. These loading systems are designed to handle a wide range of petroleum, chemical, and specialty fluid transfer applications while providing reliable operation, operator safety, and long service life.

SafeRack supplies Emco Wheaton swivel joints, providing expert support to help you choose the right configuration, materials, and sealing options for your application. Our team assists with specifications, compatibility, and system integration to ensure safe, efficient, and reliable fluid transfer operations. Get technical guidance, lead times, and pricing support, all in one place.
Emco Wheaton E2033
Overview
The loading arms can be equipped with flange connections, couplers, and various accessory options to meet specific operational requirements. For applications involving heavier connection hoses or piping, a specialized six-swivel configuration with a parallel linkage system and gas spring balancing mechanism can be incorporated to ensure smooth handling and reduced operator effort.
Built with high-quality swivel joints and an advanced spring-cylinder balancing system, these loading arms deliver exceptional maneuverability, durability, and performance across demanding industrial environments. Specialized configurations are also available for cryogenic services, including LNG transfer applications.
Key Features
Designed for bottom loading and unloading of road tankers and railcars.
- Suitable for handling petroleum products, chemicals, propane, and other industrial fluids.
- Smooth and effortless operation through precision-balanced spring cylinder technology.
- Heavy-duty swivel joints provide extended reach without requiring additional support structures.
- Up to 50° vertical movement allows easy alignment and convenient parking positions.
- Multiple seal and elastomer options available to match specific media and operating conditions.
- Compatible with various connection methods including flanged connections and couplers.
- Wide range of optional accessories including emergency release systems, orientation switches, and heating systems.
- Optional cryogenic design configurations available for LNG and low-temperature applications.
E2033 Bottom Transfer Loading Arm Specifications
| Specification | Details |
|---|---|
| Product Type | Bottom Transfer Loading Arm |
| Available Sizes | 2″ to 6″ (depending on regional configuration) |
| Working Pressure | Typical operating pressure up to 150 psi; configurations available up to 580 psi depending on design and accessories |
| Test Pressure | Available upon project-specific design requirements and pressure class selection |
| Temperature Range | -50°C to +250°C (-58°F to +482°F) depending on materials, seals, and application |
| Design Type | Bottom loading/unloading articulated loading arm with spring-cylinder balancing |
| Construction | Multi-swivel articulated arm with optional parallel linkage and gas spring assistance |
| Compliance | Designed according to applicable industry standards and customer-specific operational requirements |
| Maintenance | Low-maintenance design featuring robust swivel joints, replaceable seals, and serviceable components |
| Application Industries | Oil & Gas, Petrochemical, Chemical Processing, Energy, Bulk Liquid Transportation, LNG Facilities, Rail & Road Terminal Operations |
Materials of construction
| Component | Material |
|---|---|
| Flange Options | Carbon Steel Flanges, Stainless Steel Flanges, Low-Temperature Service Flanges |
| Bearing Module | Heavy-Duty Swivel Joint Assemblies with Precision Bearing Systems |
| Seal Options | Viton, Buna-N (Nitrile), Perbunan, PTFE, FEP, EPDM |
Source: Emco Wheaton E2033 data sheet
Source: Emco Wheaton Loading Arm Systems catalog
E2033 Frequently Asked Questions
Bottom Transfer Loading Arms are used for the safe loading and unloading of liquid products through the bottom connections of road tankers and railcars, minimizing vapor emissions and improving operational safety.
They are suitable for diesel, gasoline, crude oil, refined petroleum products, chemicals, propane, and specialized cryogenic media such as LNG.
Yes. Heavy-duty configurations featuring additional swivel joints, parallel linkage systems, and gas spring balancing devices can be supplied to accommodate heavier connection pipes and accessories.
Available safety options include emergency release systems, breakaway couplings, locking devices, orientation switches, parking assists, relief lines, purge lines, and heating systems.
Yes. Specialized designs using low-temperature materials and compatible sealing systems can be configured for cryogenic services, including LNG transfer applications.
Related Products
Emco Wheaton J0451 — Fuel Line Coupler
Emco Wheaton J0451 / J0452 — API Bottom Loading Couplers (previous generation)
Emco Wheaton J0451 — Fuel Line Coupler
Emco Wheaton J0451 / J0452 — API Bottom Loading Couplers (previous generation)
Emco Wheaton E2112 — Variable Reach Loader
Emco Wheaton E2112 — Variable Reach Loader (US / StandardLine) / E2806/E2807/E2814/E2815 (EU)
Emco Wheaton E2121 — A-Frame Bottom Loader
Emco Wheaton E2121 — High-Pressure A-Frame Loader (LPG / Anhydrous Ammonia)
Emco Wheaton E2123 — Bottom Transfer Loading Arms
Emco Wheaton E2123 — MYR Linkage A-Frame Loader
Emco Wheaton E2630 — Top Loading Arm
Emco Wheaton E2630 — Top Loading Arm with Vapor Recovery (long reach, European / international)
Emco Wheaton J0453 — Tank Truck Couplings
Emco Wheaton J0453 — API Bottom Loading Coupler (current flagship)
Emco Wheaton E2632 — Parallel Loading Arm with Vapor Recovery
Emco Wheaton E2632 — Parallel Loading Arm with Vapor Recovery
Emco Wheaton E2033 — Bottom Transfer Loading Arm
Emco Wheaton E2033 — Bottom Transfer Loading Arm (US) / E2824, E2839 (EU)
Emco Wheaton E2033 — Bottom Transfer Loading Arm
Emco Wheaton E2033 — Bottom Transfer Loading Arm (US) / E2824, E2839 (EU)
G-32-F Unsupported Boom-Type Bottom Loader
OPW Bottom Loading Arm
Emco Wheaton E2304 — Bottom Hose Loading Arm
Emco Wheaton E2304 — Bottom Hose Loading Arm (Spring Cylinder, StandardLine)
Emco Wheaton D2000 Swivel Joint
Multifunctional Swivel Joint (World Series, standard across loading arms)
Excel Loading Arm Systems & Components
SafeRack is North America’s largest distributor of Excel loading arm systems & components
OPW Loading Arms
SafeRack is North America’s largest distributor of OPW Engineered Systems loading arms
Emco Wheaton loading arms
SafeRack is North America’s largest distributor of Emco Wheaton loading arms








