PRODUCTS

API Couplers

OPW Engineered Systems has long been recognized as the company that sets the standard when it comes to API Bottom Loading Couplers. The 1004D2/1005E has been a proven performer at petroleum terminals around the world. The 1004D3 has been designed to be the safest, cleanest and fastest way to load transports. The D3 offers several features that make it the most user-friendly bottom loading coupler in the industry.

OPW now looks to raise the bar with our 1004D4 Coupler – the next generation in API Bottom Loading Couplers from OPW. By combining ease of maintenance with a unique spring-loaded sleeve design, the D4 provides the ultimate coupler experience.

1004D3 API Bottom Loading Coupler


The latest in API Bottom Loading Couplers, a proven performer at major oil terminals around the world.

  • 5-Cam Design: Easy alignment, tight adaptor connections and side-force resistance during loading
  • Dual Interlocks: Ensure that opening cannot occur unless properly connected to an API Adaptor
  • Superior Sealing: Simple, reliable smart-seal design with dual high-performance O-rings
  • High-Performance Seals: Special Fluorocarbon Seal Compound for compatibility across most products, including gasoline, diesel, biodiesel and ethanol*
  • Maintenance: Pins and small threads eliminated to provide quick, easy access to critical components; nose seal replaced without requiring removal of coupler from rack; no special tools required; complete rebuild in minutes
  • Operation: Stainless-steel “ergo” handle design for easy, smooth operation

*-Other seals available upon request.

Design Parameters & Materials

Design ParametersMaterials
Max Design Pressure:125 PSI (g), 8.6 bar (g)Body, Sleeve, PoppetASTM B26 Anodized (Aluminum A356-T6)
Max Allowable Working Pressure:75 PSI (g), 5 bar (g)CamASTM A351 CF8M (316 SST)
Max Flow Rate:600 GPM, 135 M3/HCylinderASTM SB241 (Aluminum 6061-T6)
Max Temperature:See Seal Options (page 3)ShaftASTM A564 (13-8 Condition RH 950 SST)
Weight:18.5 lbs (8.39 kg)SealsSee Seal Options
Pressure Drop (At Max Flow Rate)2-5 PSI (g), .24 bar (g)Clevis PinASTM SA 564 (17-4 PH SST, H900 Hardened)

Seal Options

Seal MaterialCoupler Model #Nose Seal (10)Stuff Box Seal (22)Stuff Box Seal (23)Cylinder Seal (9)Temp. Rating
Buna1004D3-0401/1005E3-0401H30482MH20129MH31705MH30258M-20°F–250°F
(-29°C–121°C)
Fluorocarbon1004D3-0402/1005E3-0402H30483MH20175MH31706MH30217M-20°F–400°F
(-29°C–204°C)
EPT1004D4-0404/1005E3-0404H31957MH20176MH31707MH31956M-50°F–225°F
(-46°C–107°C)

1004D4 API Bottom Loading Coupler


Next-generation API Bottom Loading Couples combines ease of maintenance with a unique spring-loaded sleeve design to deliver the ultimate coupler experience.

  • 5 Cam Design: Easy alignment, tight adaptor connections and side-force resistance during loading
  • Dual Interlocks: Ensure that opening cannot occur unless properly connected to an API Adaptor
  • Superior Sealing: Simple, reliable smart-seal design with dual high-performance O-rings
  • High-Performance Seals: Special Fluorocarbon Seal Compound for compatibility across most products, including gasoline, diesel, biodiesel and ethanol*
  • Maintenance: Pins and small threads eliminated to provide quick, easy access to critical components; nose seal replaced without requiring removal of coupler from rack; no special tools required; complete rebuild in minutes
  • Spring-Loaded Sleeve: Unique sleeve design automatically “jumps” onto API truck adaptor
  • Operation: Stainless-steel “ergo” handle design for easy, smooth operation

*-Other seals available upon request.

Design Parameters

Max Design Pressure125 psi (g), 8.6 bar (g)
Max Allowable Working Pressure75 psi (g), 5 bar (g)
Max Flow Rate600GPM, 135 M3/H
Max TemperatureSee seal options
Weight18.5 lbs (8.39 kg)
Pressure Drop (At Max Flow Rate)2-5 psi (g), .24 bar (g)

Materials

Body, Sleeve, PoppetASTM B26 Anodized (Aluminum A356-T6)
CamASTM A351 CF8M (316 SST)
CylinderASTM SB241(Aluminum 6061-T6)
ShaftASTM A564 (13-8 Condition RH 950 SST)
SealsSee Seal Options
Clevis PinASTM SA564 (17-4 PH SST, H900 Hardened)

Seal Options

Seal MaterialCoupler Model #Nose Seal (16)Stuff Box Seal (26)Stuff Box Seal (27)Cylinder Seal (15)Temp. Rating
Buna1004D4-0401H30482MH20129MH31705MH30258M-20°F - 212°F (-29°C - 100° C)
Fluorocarbon1004D4-0402H30483MH20175MH31706MH30217M-20°F - 400°F (-29°C - 204° C)
EPT1004D4-0404H31957MH20176MH31707MH31956M-50°F - 225°F (-46°C - 107° C)

API Bottom Loading Coupler Accessories


OPW offers several accessories to improve your API Terminal operation.

  • API Coupler Drain Sample Adapter (1004DRN-0400)
    • Safely take samples from any API Coupler
  • API Coupler Parking Adapter (1004PA-0400)
  • API Coupler Weather Cap (1004WC-0400)
    • Protects any API Coupler during inclement weather
  • API Coupler Drain Adapter (1004DRNFULL-0400)
    • Safely drain your API Bottom Loading Arm
  • API Nose Cone Feeler Gauge (12749)
  • API Nose Cone Feeler Gauge (API-NCFG)
  • API Latching Indicator (API-LI)
  • Vapor Coupler API Parking Adaptor (VCFPA)

Liquip API700 Series Bottom Loading Coupler


The API700 Series of Bottom-Loading Couplers is the third generation of Liquip-manufactured API couplers. It provides an effortless automatic connection for the safe and environmentally friendly transfer of product from the loading rack to the tank truck.

Features & Benefits

  • Stainless-steel outer collar
  • Latching-mechanism greatly improves geometry
  • Automatic-latching mechanism and one-touch disconnect ensures effortless operation
  • Hard-anodized aluminum body for extended life
  • Precision-machined latch spindles ensure superior latch alignment, resulting in fewer drips at disconnection
  • Separate nose and inner-poppet seals prevent high pressure from extruding inner seal
  • Ergonomic loop-and-ball handle eases operation and improves comfort
  • Poppet nose seal is replaceable without removing coupler from service
  • Coupler can be disassembled in 2-3 minutes for maintenance
  • Viton® B70 seals standard with Viton® GFLT seals in stock
  • Additional seal materials available upon request

Specifications

Technical Data

  • API710 has 150mm-long handle, API712 has 200mm-long handle

  • API710VG & API712VG have Viton® GFLT seals – recommended for ethanol blends

Test Pressure1500kPa (218psi) (15bar) uncoupled
Operating Pressure1000kPa (145psi) (10bar)
Max Coupling / Uncoupling Pressure550kPa (80psi) (5.5bar)
Max Coupled Pressure2000kPa (290psi) (20bar)
Operating Temperature-20°C to 80°C (-4°F to 176°F) for Viton® B70 seals
-40°C to 60°C (-40°F to 140°F) for Viton® GFLT seals
Associated EquipmentLiquip 'Velvet Touch' Loading Arms
AdjustmentNone Required
Mounting

  • By industry standard 100mm (4") TTMA Flange

  • 8 holes Ø11mm on 149mm PCD, 168mm outside diameter (Ø7/16" on 5.8" PCD, 6.6" OD)

  • Use spring washers when mounting coupler as per common industry practice

Weight9.2kg (20.3lb)

Liquip API800 Series Bottom Loading Coupler


Built with a stainless-steel latch-release handle and weighing only 8.5 kg (19 lbs.), the slimline Liquip API800 Series Bottom-Loading Coupler offers a robust design and ease of servicing for effortless bottom-loading operations. Liquip has considered each detail of the coupler with the user in mind to maximize the safety, performance, service life and quality of the coupler.

Features & Benefits

  • API bottom-loading coupler with automatic latching
  • Fast in-field replacement of all seals on or off the arm
  • Range of seals suits a range of applications
  • Two operating-handle sizes to suit various applications
  • Four true interlocking stainless-steel latches for secure coupling and maximum safety
  • Stainless-steel collar and hard-anodized body for increased service life and durability
  • Stainless-steel latch-release handle for long-term strength and durability
  • High-quality components for increased operating life
  • Increased site safety via minimal product leakage during disconnect
  • Reduced risk of leakage through the sealing design
  • Improved ergonomic operating handle and carry loop creates less physical strain on users

Specifications

Technical Data

  • API810 has 150mm-long handle, API812 has 200mm-long handle, Viton® B seals

  • API810VG & API812VG have Viton® GFLT seals - recommended for ethanol blends

Test Pressure820 kPa (119psi) (8.2bar)
Max Working Pressure550 kPa (80psi) (5.5bar)
Design Pressure2500 kPa (363psi) (25bar)
Max Surge Pressure3400 kPa (493psi) (34bar)
Operating Temperature-20°C to 80°C (-4°F to 176°F) -40°C to 60°C (-40°F to 140°F)
Design StandardAPI RP 1004 8th EDITION 2003 - Bottom Loading and Vapor Recovery
DismantlingRemoval of one roll pin enables the shaft assembly and main poppet to be withdrawn
Mounting

  • By industry standard 100mm (4") TTMA Flange

  • 8 holes Ø11mm on 149mm PCD, 168mm outside diameter (Ø7/16" on 5.8" PCD, 6.6" OD)

  • Use spring washers when mounting coupler as per common industry practice

Weight8.5kg (18.7lbs)

LYNX Series Bottom-Loading Coupler


LYNX Series Coupler – The Best in Bottom Loading
LYNX is optimized to bring your liquid terminals and tank trucks the very best in dry-break API technology. From its ultra-durable stainless-steel collar to its ability to protect your loading-arm connection even when facing surge pressures up to 500 psi, you can count on LYNX for years of service and to help minimize fluid loss.

Fast Disassembly, Less Downtime
If you have 30 seconds and a screwdriver, you can disassemble LYNX. Thanks to a U-pin design, loading-arm operators can perform coupler maintenance without special tools and do it quickly.

Features & Benefits

  • 5-Year Warranty
  • Fast in-field replacement of the main seals, on or off the arm
  • Quick and easy disassembly of entire coupler through U-pin design
  • Automatic latching
  • U-pin is secured when the TTMA flange is fastened to prevent the pin from coming out during service
  • A variety of seals available to suit a range of applications
  • Two operating handle sizes to suit customer preference
  • Four “true-interlocking” stainless-steel latches ensure secure coupling and maximum safety
  • High-quality components including a stainless-steel collar and hard anodized aluminum body for increased service durability and life
  • Nominal product leakage during disconnect increases site safety
  • Low risk of leakage because of a proven seal design
  • Ergonomic operating handle and carry loop results in less physical strain on users

Specifications

Handle LengthShort 5.9" (150mm) or Long 7.8" (200mm)
SealsViton B, Viton GFLT, Nitrile/Buna, Fluorosilicone, FFKM, Ultra Low-Temp (FKM)
Max Working Pressure80 psi (5.5 bar) (550 kPa)
Product Test Pressure119 psi (8.2 bar) (820 kPa)
Design Pressure363 psi (25 bar) (2500 kPa)
Max Surge Pressure 493 psi (34 bar) (3400 kPa)
Operating TemperatureViton B70: 0°F to 200°F (-15°C to +90°C); Viton GFLT: -20°F to +200°F (-28°C to +90°C); Nitrile/Buna: -40°F to 212°F (-40°C to 100°C); Fluorosilicone: -49°F to 350°F (-45°C to 177°C); FFKM: 23°F to 140°F (-5°C to 60°C); FKM (Ultra Low-Temp): -40°F to 200°F (-40°C to 90°C)
Design StandardAPI RP 1004 8th EDITION 2003 - Bottom Loading and Vapour Recovery; AS5602-2009
DismantlingRemoval of one U-pin enables the shaft assembly and main poppet to be withdrawn
Mounting

  • By industry standard 4" (100 mm) TTMA Flange

  • 8 holes Ø7/16" on 5.8" PCD, 6.6" outside diameter (Ø11 mm on 149 mm PCD, 168 mm OD)

  • Use spring washers when mounting coupler as per common industry practice

Adjustment or ServiceRefer to Maintenance Instructions document
Weight19 lbs. (8.6 kg.)
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