OPW Engineered Systems CWH Series — Counterweighted Hose Loader
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The CWH Series Hose Loader is designed to provide safe, efficient, and flexible bottom-loading operations for petroleum and liquid transfer applications. Featuring a counterweighted design and extended reach capability, this hose loader simplifies product loading while ensuring reliable performance and smooth handling. Its rugged construction and maintenance-friendly design make it a practical solution for fuel terminals, bulk plants, and loading rack facilities.

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OPW Engineered Systems CWH Series — Counterweighted Hose Loader
Overview
The CWH Series Hose Loader combines durable construction with operational flexibility to meet the demands of modern loading facilities. Adjustable counterweights mounted on horizontal rails allow operators to easily balance the loading arm for smooth movement and effortless connection to tank truck adapters. Designed with a flange-by-flange base swivel joint, the system provides dependable operation while simplifying maintenance procedures. The standard configuration incorporates carbon steel and aluminum components along with a flexible drop hose for improved maneuverability. With the ability to support multiple-compartment loading and API envelope compliance, the CWH Series Hose Loader helps improve loading efficiency and reduce vehicle turnaround times.
Key Features
- Simple and rugged loading arm construction
- Extended reach capability up to 114 inches (2896 mm)
- Adjustable counterweight system for smooth balancing
- Supports multiple-compartment loading operations
- Dual Split Flange (DSF) inlet swivel for durability
- Carbon steel and aluminum construction
- Low-temperature fluorocarbon seals
- Available with braided stainless steel hose
- Available with Rackmaster composite hose
- Reliable flange-by-flange swivel joint design
- Smooth operation and easy handling
- Designed for API loading applications
- Maintenance-friendly construction
CWH Series Hose Loader Specifications
| Specification | Details |
|---|---|
| Product Type | Counterweighted Hose Loader |
| Series | CWH Series |
| Construction Material | Carbon Steel / Aluminum |
| Seal Material | Low Temperature Fluorocarbon |
| Working Pressure | 125 PSI (862 kPa) |
| Test Pressure | 188 PSI (1296 kPa) |
| Operating Temperature | -20°F to 140°F (-29°C to 60°C) |
| Up/Down Angular Movement | +15° to -15° from Horizontal |
| Typical Horizontal Spacing | 18 in. (457 mm) |
| Typical Vertical Spacing | 16 in. (406 mm) |
| Typical Reach Radius | 66–102 in. (1676–2591 mm) |
| Maximum Reach | 114 in. (2896 mm) |
| Arms per Bay | Up to 5 |
| Hose Options | Braided Stainless Steel or Rackmaster Composite Hose |
Materials of construction
| Component | Material |
|---|---|
| Main Structure | Carbon Steel |
| Base Swivel Joint | Carbon Steel |
| Coupler Swivel Joint | Aluminum |
| Spacer Spool | Aluminum |
| API Coupler | Aluminum |
| Drop Hose | Braided Stainless Steel or Composite Hose |
| Seals | Low Temperature Fluorocarbon |
Sourse: LYNX Coupler Data Sheet
Source: 1004D3-1005E3 Coupler Installation Operations Manual
CWH Series Hose Loader Frequently Asked Questions
The CWH Series Hose Loader is used for bottom-loading petroleum products and other compatible liquids into tank trucks and transport vehicles.
Adjustable counterweights are mounted on horizontal rails and can be positioned to achieve the desired balance point, making the loader easier to operate.
Yes. The system is design to support multiple-compartment loading, helping improve loading efficiency and reduce loading times.
The CWH Series Hose Loader can be supplay with braided stainless steel hose or Rackmaster composite hose depending on application requirements.
The loader provides a maximum reach of approximately 114 inches (2896 mm), allowing access to a wide range of tank truck adapter positions.
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