OPW Engineered Systems LBM800 — Liquip Balance Mechanism (Bottom Loading Arm)
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The LBM800 Liquip Balance Mechanism is a high-performance solution designed to enhance the safety, efficiency, and reliability of bottom-loading operations. Engineered for petrochemical distribution terminals, this advanced balance mechanism provides effortless arm movement, exceptional durability, and reduced maintenance requirements. Its innovative design helps operators position loading arms with greater control while supporting long-term operational performance.

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OPW Engineered Systems LBM800 — Liquip Balance Mechanism (Bottom Loading Arm)
Overview
The LBM800 Liquip Balance Mechanism sets a high standard for modern bottom-loading systems by combining smooth operation with robust construction. At the heart of the design is Liquip’s unique Velvet Touch technology, which delivers consistent and effortless movement throughout the entire operating range of the loading arm. The mechanism provides full 360-degree horizontal rotation, allowing operators to move the loading arm easily between parked and loading positions. This flexibility enables service to vehicles positioned on either side of the loading bay. In addition, the vertical swivel movement allows precise coupler positioning within the API loading envelope, helping improve loading efficiency and accessibility. Designed for demanding terminal environments, the LBM800 incorporates a unique gas strut balancing system and a durable swivel assembly that minimizes servicing requirements while maximizing operational life.
Key Features
- Velvet Touch technology for smooth arm movement throughout the operating range
- Unique gas strut balancing system for enhanced safety
- Full 360° horizontal rotation capability
- Supports loading operations on either side of the loading bay
- Vertical swivel movement for positioning within the API envelope
- Durable base swivel assembly for long service life
- Low-maintenance design reduces servicing requirements
- Configurable for left-hand, right-hand, upward, and downward installations
- Slimline drop leg bracket for compact installation
- Suitable for demanding petrochemical loading applications
- Easy on-site configuration and setup
- Designed for efficient bottom-loading operations
LBM800 Bottom Loading Arm Specifications
| Specification | Details |
|---|---|
| Product Type | Bottom Loading Arm Balance Mechanism |
| Model | LBM800 |
| Materials | Carbon Steel / Aluminum |
| Seal Material | Low Temperature Fluorocarbon |
| Working Pressure | 145 psi (1000 kPa) |
| Test Pressure | 217 psi (1500 kPa) |
| Operating Temperature | -20°F to 140°F (-29°C to 60°C) |
| Up/Down Angular Movement | -15° to +15° from Horizontal |
| Horizontal Rotation | 360° |
| Typical Horizontal Spacing | 24 in. (650 mm) |
| Typical Vertical Spacing | 18 in. (450 mm) |
| Typical Reach Radius | 50–80 in. (1300–2032 mm) |
| Arms per Bay | Up to 6 |
Materials of construction
| Component | Material |
|---|---|
| Main Structure | Carbon Steel |
| Balance Mechanism Components | Carbon Steel |
| Swivel Assembly | Carbon Steel / Aluminum |
| Drop Leg Bracket | Steel Construction |
| Gas Strut System | Heavy-Duty Industrial Components |
| Seals | Low Temperature Fluorocarbon |
| Coupler Support Components | Aluminum |
| Hardware & Fasteners | Corrosion-Resistant Steel |
Sourse: LBM800 Datasheet
Source: Gas Strut – Liquid Balance Mechanism (LBM) Hose Loader Sell Sheet
LBM800 Bottom Loading Arm Frequently Asked Questions
The LBM800 is used to balance and support bottom-loading arms, making loading operations smoother, safer, and easier for operators.
Velvet Touch is Liquip’s balancing system that provides smooth, consistent movement throughout the loading arm’s operating range, reducing operator effort.
Yes. The mechanism provides 360-degree horizontal rotation, allowing the loading arm to serve vehicles positioned on either side of the loading rack.
The LBM800 is widely used in petrochemical terminals, fuel distribution facilities, bulk liquid loading operations, and petroleum transfer applications.
The system can typically support up to six loading arms per bay, depending on installation requirements and layout.
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