Gas Strut Hose (GSH) Bottom Loading Arm
Description:
Gas Strut Hose (GSH) Bottom Loading Arm
Coupling Category
Bottom Loading Arm
Manufacturer
OPW Engineered Systems
| GSH Order Guide |
The GSH provides effortless bottom loading in petroleum-distribution terminals through the use of a unique operational capability known as the Velvet Touch.
The ability of 360-degree rotation in the horizontal plane allows the GSH to easily move from a parked to a loading position, and to service vehicles on either side of the loading bay. Additionally, the vertical-plane swivel allows users to position the coupler at different heights within the API envelope.
Features & Benefits:
- Velvet Touch Gas Struts provide smooth operation over the entire stroke of the loading arm
- Exceptional durability and minimal service requirements
- Any unit can be easily configured for left-hand, right-hand, upward and downward configurations on-site
- Enhanced strength and ease of adjustment through a heavy-duty adjustment mechanism
- Adjustable up/down stop that can be set with minimal effort
- Long reach capabilities, ideal for five-, six- and seven-arm bays
Technical Features
| Materials | Carbon Steel/Aluminum |
| Seals | Low-Temp Flurocarbon |
| Working Pressure | 80 PSI (5.5 Bar) |
| Test Pressure | 120 PSI (8.2 Bar) |
| Operating Temperature | -20ºF to 140ºF (-29ºC tp 60ºC) |
| Up/Down Angular Movement | -15º to 15º (from horizontal) |
| Typical Horizontal Spacing | 18" (457 mm) |
| Typical Vertical Spacing | 18" (457 mm) |
| Typical Reach (radius) | 60" to 90" (1,524 mm to 2,286 mm) |
| Nominal Diameter | 4" |
| Typical Flow Rates (Velocities < 15 ft/sec (7.5 m/sec)) | 300-600 GPM (2000-3000 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 | Investment Cast 4130 Steel |
| Primary Arm Piping | Sch 40 Aluminum ASTM B241 |
| Apex Swivel (p/n 3640FT-0402) | Aluminum (Heat Treated) |
| Drop Hoses | (L19080) Braided Stainless Steel, TTMA Ends
(L19081) Rackmaster Composite, TTMA Ends |
| Coupler Swivel (p/n VNI-A4VG) | Aluminum(Heat Treated) |
| Isolation Valve (LBV450VGL) | Cast Aluminum/Flurocarbon |
| Spacer Spool (p/nVSS4) | Cast Aluminum AA601 |
| API Coupler (p/n 1004D3, Lynx852VG) | Aluminum/Flurocarbon, Low-Temp Flurocarbon |
Additional Information
| Weld Procedure | 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 |
| 3000RK-0402 | 3000 Series Swivel Seal Kit, 4" Flurocarbon | All Swivels (Counterbalance, Apex, Coupler Swivels) | 4 |
| 1004D3SRK-0402 | Coupler Seal Repair Kit, 4" Flurocarbon | 1004D3-0402 (API Coupler) | 1 |
| API850VGSK | Coupler Seal Repair Kit, 4" Flurocarbon | Lynx852VG (API Coupler) | 1 |
**Other seal kits/materials available upon request
 |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |