Counterweighted Hose (CWH) Bottom Loading Arms

Description:

Counterweighted Hose (CWH) Bottom Loading Arms

Coupling Category

Bottom Loading Arm

Manufacturer

OPW Engineered Systems

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
Counterweighted Hose (CWH) Bottom Loading Arms
   WARNING: Cancer and
   Reproductive Harm -
   www.P65Warnings.ca.gov