Welcome to our resource library center. Browse our library of catalogs, brochures, flyers, IOM’s and product spec sheets.

All document downloads are in Adobe PDF format. If you do not have Adobe Reader, you can download Adobe's PDF Reader for free.


FileTypeSizePublished OnUrgencyDownload
OPW ES Process Products and Accessories Catalog
PDF7.96 MB22 Sep, 2022NA Download
Dry & Quick Disconnect Fittings Catalog
PDF19.10 MB23 Oct, 2019NA Download
Swivel Joints Catalog
PDF2.12 MB04 Feb, 2019NA Download
Loading Systems Catalog
PDF2.84 MB22 Dec, 2014NA Download

Brochures & Flyers

FileTypeSizeUploaded onDownload
OPW Biopharma BrochurePDF2.44 MB25 Mar, 2024 Download
The OPW AdvantagePDF559.54 KB14 Jun, 2023 Download
Drylok Dry Disconnect System ManualPDF1.60 MB19 Nov, 2014 Download
Folleto Soluciones Totales Para Terminales (En Español)PDF726.13 KB18 Aug, 2016 Download
Terminal Solutions BrochurePDF2.28 MB13 Jul, 2016 Download
OPW-Engineered-Systems-Adaptor-GaugePDF818.97 KB29 Jun, 2015 Download
Endura Loading Arm BrochurePDF5.00 MB08 Apr, 2015 Download
OPW-ES Loading Systems CatalogPDF2.84 MB18 Nov, 2014 Download
Rack Equipment Sales GuidePDF3.33 MB18 Nov, 2014 Download

Case Studies

FileTypeSizeUploaded onDownload
White Paper - Optimizing Small-Volume Liquid Transfer at Storage TerminalsPDF1.27 MB04 Aug, 2023 Download
Case Study - OPW Improves Lube Oil Terminal OperationPDF834.42 KB25 Aug, 2022 Download
Case Study - High-Volume Petroleum TerminalPDF1.16 MB27 May, 2022 Download
Case Study - Loading Arms - Eastern Liquids - Propane TransferPDF320.81 KB29 Dec, 2014 Download
White Paper - Quality - Engineered Systems - Manufacturing PhilosophyPDF1.30 MB24 Dec, 2014 Download
Case Study - Counter Balance - NuStar - Railcar Loading TerminalPDF821.26 KB24 Dec, 2014 Download
Case Study - Hose Couplings - EMCO - Chemical DistributionPDF489.78 KB24 Dec, 2014 Download
Case Study - Drylok - SI Group - Handling PhenolPDF1.44 MB19 Nov, 2014 Download
Case Study - Kamvalok - Allied Aviation - Airport SafetyPDF1016.62 KB19 Nov, 2014 Download


FileTypeSizeUploaded onDownload
Standard Bottom Loading Equipment SurveyPDF704.89 KB29 Dec, 2018 Download
Tank Truck Bottom Loading Layout FormPDF510.76 KB27 Mar, 2018 Download
Bottom Unloading Rail Layout FormPDF216.20 KB27 Mar, 2018 Download
Top Loading Design FormPDF166.34 KB27 Mar, 2018 Download
Loading Arm Design Form (Spanish)PDF171.90 KB09 Aug, 2017 Download
Breakaway Application FormPDF75.65 KB03 Mar, 2016 Download

Data Sheets


FileTypeSizePublished OnUrgencyDownload
Drylok Dry Disconnect Coupler Data Sheet
PDF874.59 KB23 Oct, 2019NA Download
Kamvalok Flat Data Sheet
PDF226.93 KB23 Oct, 2019NA Download
Kamlok-Autolok Data Sheet
PDF1.29 MB08 Jun, 2018NA Download
Twist-Lok Technical Drawing
PDF158.40 KB03 Jul, 2017NA Download
Sightglass for Flanges Datasheet
PDF1.21 MB26 Jul, 2016NA Download
PDF1.20 MB09 Mar, 2015NA Download
Kamvalok Data Sheet
PDF1.30 MB11 Nov, 2014NA Download


FileTypeSizeUploaded onDownload
Especificaciones y Partes Acople LYNX (En Español)PDF4.87 MB18 Aug, 2016 Download
VNC-A4VG Coupling Swivel DatasheetPDF827.60 KB26 Jul, 2016 Download
VNI-A4VG Intermediate Swivel DatasheetPDF571.31 KB26 Jul, 2016 Download
VNI-A4VG DatasheetPDF705.62 KB20 Mar, 2015 Download
0427 VNC-A4VG DatasheetPDF1.01 MB20 Mar, 2015 Download


FileTypeSizeUploaded onDownload
HT3-TL Data SheetPDF305.31 KB03 Jul, 2018 Download
OPW API Parking Adaptor DatasheetPDF2.07 MB22 Aug, 2016 Download
LYNX Coupler Data SheetPDF4.88 MB14 Apr, 2016 Download
VNB-I4 MK2 DatasheetPDF739.14 KB20 Mar, 2015 Download
LBM800 DatasheetPDF1.03 MB20 Mar, 2015 Download
API800-DatasheetPDF5.02 MB20 Mar, 2015 Download
API700-DatasheetPDF1.70 MB20 Mar, 2015 Download

OPW-ES Products

Delivering the best quality loading arms

OPW offers premium-grade top and bottom loading arms, swivel joints, sight flow indicators, quick and dry disconnect couplers and safety breakaways for use in railcar rack systems and platforms, bulk plant and liquid terminals applications.

View Our Products


Every Arm. Every Option. Only OPW.

OPW offers the most complete line of loading arm systems and loading-rack equipment for today's bulk loading and unloading requirements.

View Products


Every Arm. Every Option. Only OPW.

Design, plant and maintenance engineers use OPW swivel joints in flexible piping systems, loading arms, hose reels, sewer rodding and wastewater treatment equipment, and various types of process machinery.

View Products


Every Arm. Every Option. Only OPW.

OPW Engineered Systems is a world-class manufacturer of quick and dry disconnect fittings designed to meet any fluid handling need.

View Products


Every Arm. Every Option. Only OPW.

Whether you’re monitoring petroleum products, liquefied gases, solvents, or hazardous, corrosive chemicals, OPW’s collection of Process Products help keep your fluids under control.

View Products