OPW Engineered Systems
Counterweighted Hose (CWH) Bottom Loading Arms
Vendor: OPW Engineered Systems
Coupling Type: StandardLine Loading Arms
Description:
Counterweighted Hose (CWH) Bottom Loading Arms
Coupling Category:
Bottom Loading Arm
| CWH Order Guide |
The grandfather of OPW's Terminal Product line, the CWH is ideal for longer reach applications or loading bays that require up to seven arms. Its simple, yet robust, design has provided decades of reliable service. Also a good choice when replacing existing Counterweighted or Shot-Bucket Loaders.
Features & Benefits:
- 8000 Series Split Flange Inlet Swivel
- Higher Load Capabilities
- Easier Maintenance
- 3000 Series Swivel Joints
- Simple, Proven Design
- Carbon Steel/Aluminum Construction
- Low-Temperature Fluorocarbon Seals
- Wide Compatibility
- Adjustable Counterweight Balancing
- Safe, Easy Adjustment
- Braided Stainless Steel or Rackmaster Composite Hoses
- Available with Lynx Bottom Loading Coupler
Technical Features
| Materials | Carbon/Steel Aluminum |
| Seals | Low-Temp Fluorocarbon |
| Working Pressure | 80 PSI (5.5 Bar) |
| Test Pressure | 120 PSI (8.2 Bar) |
| Operating Temperature | -20ºF to 140ºF (-29ºC to 60ºC) |
| Up/Down Angular Movement | 20º to -20º (from horizontal) |
| Typical Horizontal Spacing | 18" (457 mm) |
| Typical Vertical Spacing | 18" (457 mm) |
| Typical Reach (radius) | 78", 90", 114" (1,981 mm, 2,286 mm, 2,896 mm) |
| Nominal Diameter | 4" |
| Typical Flow Rates (Velocities < 15 ft/sec (7.5 m/sec)) | 300-600 GPM (2000-3500 LPM) |
| Weight | ~275 lbs* |
*Estimated weight for entire Loading Arm (72" Reach). Weight can vary depending on selected options.
Materials of Construction
| Inlet Flange | 4" 150 ANSI ASTM A105 |
| Inlet Swivel | Carbon Steel ASTM A105 |
| Primary Arm Piping | Sch 40 Carbon Steel |
| Drop Hoses |
(L1980) Braided Stainless Steel, TTMA Ends (L19081) Rackmaster Composite, TTMA Ends |
| Coupler Swivel (p/n 3635FTH-0402) | Aluminum ASTM B26 A356 T6 |
| Isolation Valve (LBV450VGL) | Cast Aluminum/Fluorocarbon |
| Spacer Spool (p/n VSS4) | Cast Aluminum AA601 |
| API Coupler (p/n 1004D3, Lynx852VG) | Aluminum/Fluorocarbon |
Additional Information
| Weld Protection | Per the ASME Boiler & Pressure Vessel Code Section IX |
| Radiograph/X-Ray | Per OPW Standard, 5% random/factory lot |
| Testing | All assembled Loading Arms shall be tested to 1.5X the rated design pressure. |
| Surface Treatments | All Carbon Steel components to be protected with a 2-part paint process. Aluminum components to be unpainted. |
| Lubricant | OPW 880 High-Performance Synthetic Lubricant |
| Gasketing | KlingerSil C5400 |
Recommended Spare Parts List**
| Part # | Description | Where Used | Qty/Arm |
| 8000RK-0402 | 8000 Series Swivel Seal Kit, 4" Fluorocarbon | 8420F-0402 (Base Swivel) | 1 |
| 3000RK-0402 | 3000 Series Swivel Seal Kit, 4" Fluorocarbon | 3635FTH-0402 (Coupler Swivel) | 1 |
| 1004D3SRK-0402 | Coupler Seal Repair Kit, 4" Fluorocarbon | 1004D3-0402 (API Coupler) | 1 |
| API850VGSK | Coupler Seal Repair Kit, 4" Fluorocarbon | Lynx852VG (API Coupler) | 1 |
**Other seal kits/materials available upon request
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WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |