Operating Companies

OPW Engineered Systems

Engineered Systems specializes in designing and manufacturing products for safe and efficient loading and unloading of critical hazardous chemicals: loading arms, swivel joints, sight flow indicators, quick and dry disconnect couplers, and safety breakaways.

Serving the world with innovative high and low pressure and temperature sealing couplings, connectors, and product recovery / pipeline cleaning technologies for over a decade, HILTAP offers products for front line solutions, allowing design engineers to specify safe and environmentally responsible connections. All of HILTAP's products are currently being used every day, in some of most challenging pressure and temperature applications found in the world.

OPW Engineered Systems
2726 Henkle Drive
Lebanon, Ohio 45036, USA
Tel: +1 (513) 932-9114 • (800) 547-9393
Fax: +1 (513) 932-9845 • (800) 245-8536
Web site: http://www.opw-es.com


Midland Manufacturing is a leading manufacturer of components and systems for use on general purpose and pressure rail tank cars to ensure the safe handling, loading, transport and unloading of hazardous bulk products: pressure relief valves, check valves, vacuum relief and needle valves, top transfer valves, loading and unloading angle valves, bottom equipment, rupture disc devices, actuator systems, manway cover plates, lift assisters, level measurement gauges.

7733 Gross Point Road, Skokie, Illinois 60077
Tel: 847-677-0333
Web site: http://www.midlandmfg.com

Civacon, Sure Seal and Knappco

Civacon & Knappco specializes in products for petroleum, chemical and dry bulk cargo tanks that help safeguard against spills, overfills, and fugitive emissions: access ports, manholes, weld rings, hatches, fill covers, swing check valves, pressure vacuum hatches, pressure relief valves, vapor valves, bottom loading equipment, delivery elbows, overfill detection devices, and vapor recovery adaptors.

Sure Seal specializes in components for pneumatic tank trailers, rail cars, chemical and pharmaceutical plants, and any application requiring the processing, movement and storage of dry bulk or liquid materials: butterfly valves, lined ball valves, actuators, aeration systems, relief valves, hopper tees, couplers, and sanitary valves.

Civacon Corporate Headquarters
4304 Mattox Road
Kansas City, MO 64150
Voice: 816-741-6600 or 888-526-5657
Fax: 816-741-1061 or 888-634-1433
Web site: http://www.civacon.com

OPW Fluid Transfer Group World Headquarters

OPW Fluid Transfer Group World Headquarters
4680 Parkway Drive, Suite 203
Mason, Ohio 45040 USA
Telephone: +1 513 696 1790
Fax: +1 513 204 5770
Web site: http://www.opwftg.com

OPW Fluid Transfer Group China
Chamtime International Finance Center
Unit 1-11, 19th Floor
1589 Century Avenue
Pudong New Area Shanghai
Tel: +86 21 60812825
Fax: +86 21 61633589
Web site: http://www.opwftgchina.com

South America
OPW Fluid Transfer Group South America
Rodovia Romildo Prado KM 13,5
Itatiba, SP 13255-750
Telephone: +55 11 4894 7700
Fax: +55 11 4894 7701
Web site: www.opwftg.com.br

Dover India Private Limited,
OPW Fluid Transfer Division
A-93, Wagle Industrial Estate,
Road No. 16, Thane 400604
Telephone: +91 22 67100812
Fax: +91 22 67100815
Web site: www.opwftgindia.com


OPW Fluid Transfer Group Europe B.V. is a leading manufacturer of a full range of loading arms, and subsequent fluid handling equipment and a major provider of cargo tank products and an extensive package of bulk handling fittings for markets in Europe, the former Soviet Union, Africa, the Middle East, and Asia as far as Pakistan.

OPW Fluid Transfer Group Europe
Roggestraat 38, 2153 GC Nieuw-Vennep
P.O. Box 32, 2150 AA Nieuw-Vennep
The Netherlands
Telephone: +31 252 660 300
Fax: +31 252 687 258
Web site: http://www.opw-ftg.nl