1004D API Bottom Loading CouplerNext Generation

Product Datasheet

Technical specifications, dimensions, and installation notes for the OPW 1004D Series.

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OPW 1004D Series

1004D API Bottom Loading Coupler

The safer, cleaner, faster way to load your transport — next generation API bottom loading coupler.

The 1004D4 coupler is the next generation in API Bottom Loading Couplers from OPW. By combining ease of maintenance with a unique spring loaded sleeve design, the 1004D4 provides the ultimate coupler experience. A proven performer at major oil terminals worldwide, it features a 5-cam design, fully interlocked safety mechanism, and superior shift sealing with dual high-performance O-rings.

Technical Specifications

Max Design Pressure125 psi (g) / 8.6 bar (g)
Max Allowable Working Pressure75 psi (g) / 5 bar (g)
Max Flow Rate600 GPM / 135 M³/H
Pressure Drop (at max flow)2–5 psi (g) / 0.24 bar (g)
Weight18.5 lbs (8.39 kg)
Temperature Range (Fluorocarbon)-29°C to 204°C (-20°F to 400°F)
Temperature Range (Buna N)-29°C to 100°C (-20°F to 212°F)
Body / Sleeve / PoppetAluminum
Shaft / Cam Arms / HandleStainless Steel
Design StandardAPI RP-1004

Typical Applications

  • Petroleum terminal bottom loading operations
  • Gasoline, diesel, biodiesel and ethanol loading
  • High-volume tank truck loading at oil depots
  • Chemical and industrial fluid transfer loading systems

Features & Benefits

  • 5-Cam Design ensures easy alignment, tight connection and resists side forces during loading
  • Fully interlocked — all 5 cams serve as interlock; cannot be opened unless properly connected to an API adaptor
  • Superior shift sealing with dual high-performance O-rings
  • High-performance Fluorocarbon seals compatible with gasoline, diesel, biodiesel and ethanol
  • Spring loaded sleeve automatically 'jumps' onto truck API adaptors
  • New stainless steel 'ergo' handle for easy, smooth operation
  • All pins and small threads eliminated for quick, easy access to critical components
  • Nose seal replaceable without removing coupler from the rack
  • Completely rebuilt in minutes — no special tools required
  • Fluorocarbon seal installed as standard; Buna-N, EPT and Kalrez available on request

Part Numbers

1004D4SRK-0401Buna-N Seal Replacement Kit
1004D4SRK-0402Fluorocarbon Seal Replacement Kit
1004D4SRK-0404EPT Seal Replacement Kit
1004D4SRK-0409Kalrez® Seal Replacement Kit
1004DRN-0400Drain Adaptor with relief valve
1005PA-AL40Parking Adaptor

Authorized Distributor

Voltika is the authorized distributor of OPW-Dover India Private Limited. All products are genuine OPW-Dover, supplied with full manufacturer warranty and after-sales support.

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