CWH Series Counterweighted Hose Loader
Installation and operation are simple and efficient with OPW Engineered Systems’ hose loaders. Adjustable counterweights mounted on a pair of horizontal rails are simply moved until the desired balance point is located. This design provides for efficient handling and coupling to the tank adaptors.
This popular hose loader features a flange-by-flange base swivel joint for reliable performance and ease of maintenance. A heavy-duty Dual Split Flange (DSF) base swivel joint is standard on 4" arms. Construction is carbon steel with a drop hose for maximum flexibility and easy handling. Coupler swivel joint, spacer spool and API coupler are aluminum on the standard model.
Accessories
| Drop Spool | 4" Aluminum or Carbon Steel | As Required |
|---|---|---|
| Drop Hose | 4" Rackmaster Composite, 80" OAL, TTMA Flanged Ends | L19080 |
| 4" Braided Stainless Steel, 80" OAL, TTMA Flanged Ends | L19081 | |
| Coupler Swivel | 4" Style 30 (90º) Swivel Joint with maneuvering handle | |
| TTMA Flanged ends, Aluminum/ Low Temp Fluorocarbon | 3635FTH-0402 | |
| Butterfly Valve | 4" Full flow, position locked butterfly valve | LBV450VGL |
| Spacer Spool | 4" Loading Arm Coupler Spool, TTMA Flanged ends, Aluminum | |
| 6" OAL | VSS4 | |
| Sight Glass | 4" Acrylic Sight Glass, Tempered, Cast Acrylic | BF4-SG-25 |
| API Coupler | 4" API Bottom Loading Coupler | |
| Manual Version: | 1004D3-0402 (Fluorocarbon Seals) | |
| Semi-Automatic Version: | LYNX852 (Fluorocarbon Seals |
Features
- Simple, rugged construction
- 4 arms with 114" (2896mm) reach
- Counterbalance adjustment is smooth and easy
- Multiple-compartment loading capability save time
- Dual Split Flange (DSF) inlet swivel for durability
- Carbon Steel/Aluminum construction
- Low Temperature Fluorocarbon Seals
- Braided Stainless Steel or Rackmaster Composite Hose
Benefits
- Easily meets API envelope requirements
- Crossover capability to meet API envelope
- Long reach capability
- Easy maintenance
Library
All OPW Loading Arms can be customized to fit your specific application requirements. We do offer a series of Standard/ optimized solutions that are commonly specified. These optimized selections can be expedited to meet faster delivery requirements.
-
CWH-66
-
CWH-78
-
CWH-90
-
CWH-102
-
CWH114
Specifications
| Materials | Carbon Steel / Aluminum |
|---|---|
| Seals | Low Temp Fluorocarbon |
| Working Pressure | 125 PSI (862 kPa) |
| Test Pressure | 188 PSI (1296 kPa) |
| Operating Temp | -20F to 140F |
| Up/Down Angular Movement | +15° to -15° (from horizontal) |
| Typical Horizontal Spacing | 18" (457 mm) |
| Typical Vertical Spacing | 16" (406 mm) |
| Typical Reach (radius) | 66" to 102" (1676 mm to 2591 mm) |
| Typical No. of arms per bay | up to 5 |
Order Guide
-
Counterweighted Hose (CWH) Loader Sell Sheet
-
Terminal Solutions Brochure
-
Terminal Survey Form
-
3000 Series Installation Operations Manual
-
8000 Series Endura Installation Operations Manual
-
790 Counterbalance Installation Operations Manual
-
Loading Arms Installation Operations Manual
-
Folleto Soluciones Totales Para Terminales (En Español)
-
Hoja de Datos Estándar para Carga por Debajo - Español
-
Bottom Unloading Rail Layout Form
-
Tank Truck Bottom Loading Layout Form
Accessories
| Drop Spool | 4" Aluminum or Carbon Steel | As Required |
|---|---|---|
| Drop Hose | 4" Rackmaster Composite, 80" OAL, TTMA Flanged Ends | L19080 |
| 4" Braided Stainless Steel, 80" OAL, TTMA Flanged Ends | L19081 | |
| Coupler Swivel | 4" Style 30 (90º) Swivel Joint with maneuvering handle | |
| TTMA Flanged ends, Aluminum/ Low Temp Fluorocarbon | 3635FTH-0402 | |
| Butterfly Valve | 4" Full flow, position locked butterfly valve | LBV450VGL |
| Spacer Spool | 4" Loading Arm Coupler Spool, TTMA Flanged ends, Aluminum | |
| 6" OAL | VSS4 | |
| Sight Glass | 4" Acrylic Sight Glass, Tempered, Cast Acrylic | BF4-SG-25 |
| API Coupler | 4" API Bottom Loading Coupler | |
| Manual Version: | 1004D3-0402 (Fluorocarbon Seals) | |
| Semi-Automatic Version: | LYNX852 (Fluorocarbon Seals |
Features
- Simple, rugged construction
- 4 arms with 114" (2896mm) reach
- Counterbalance adjustment is smooth and easy
- Multiple-compartment loading capability save time
- Dual Split Flange (DSF) inlet swivel for durability
- Carbon Steel/Aluminum construction
- Low Temperature Fluorocarbon Seals
- Braided Stainless Steel or Rackmaster Composite Hose
Benefits
- Easily meets API envelope requirements
- Crossover capability to meet API envelope
- Long reach capability
- Easy maintenance
Library
All OPW Loading Arms can be customized to fit your specific application requirements. We do offer a series of Standard/ optimized solutions that are commonly specified. These optimized selections can be expedited to meet faster delivery requirements.
-
CWH-66
-
CWH-78
-
CWH-90
-
CWH-102
-
CWH114
Specifications
| Materials | Carbon Steel / Aluminum |
|---|---|
| Seals | Low Temp Fluorocarbon |
| Working Pressure | 125 PSI (862 kPa) |
| Test Pressure | 188 PSI (1296 kPa) |
| Operating Temp | -20F to 140F |
| Up/Down Angular Movement | +15° to -15° (from horizontal) |
| Typical Horizontal Spacing | 18" (457 mm) |
| Typical Vertical Spacing | 16" (406 mm) |
| Typical Reach (radius) | 66" to 102" (1676 mm to 2591 mm) |
| Typical No. of arms per bay | up to 5 |
Order Guide
-
Counterweighted Hose (CWH) Loader Sell Sheet
-
Terminal Solutions Brochure
-
Terminal Survey Form
-
3000 Series Installation Operations Manual
-
8000 Series Endura Installation Operations Manual
-
790 Counterbalance Installation Operations Manual
-
Loading Arms Installation Operations Manual
-
Folleto Soluciones Totales Para Terminales (En Español)
-
Hoja de Datos Estándar para Carga por Debajo - Español
-
Bottom Unloading Rail Layout Form
-
Tank Truck Bottom Loading Layout Form
Need help? Contact support.
Customer Support
Reach Out to Our Customer Support Team for Prompt Assistance and Answers to Any Questions or Concerns You May Have
Technical Support
Contact Us for Technical Support on Your Projects and Resolving Any Technical Issues You Encounter
Contact a Distributor
Locate a Nearby Distributor for Replacement Parts
Product Enquiry
Product Information request form to find the right solution
Need help? Contact support.
Customer Support
Reach Out to Our Customer Support Team for Prompt Assistance and Answers to Any Questions or Concerns You May Have
Technical Support
Contact Us for Technical Support on Your Projects and Resolving Any Technical Issues You Encounter
OPW CORPORATE HEADQUARTERS
9393 Princeton-Glendale Road
Hamilton, Ohio, USA 45011
Copyright © 2026 OPW, A Dover Company, and its affiliated entities.