U.S. TAG to ISO/TC 131/SC 5/WG 2 - Hydraulic control products

Committee Mission

The U.S. TAG to ISO/TC 131/SC 5/WG 2 develops U.S. industry’s input on International (ISO) standards for hydraulic valves used in fluid power systems. Examples of topics covered are valve mounting surface dimensions, cartridge valve cavities, and dimensions and marking requirements for hydraulic valve manifolds.

Committee Members

Chairman: Thomas Weinkauf

Daman Products Company Inc.

Chuck Meinke

Bosch Rexroth Corp.

John Kaufman

Caterpillar Inc.

Abdul Karim Maoued

Caterpillar Inc.

Jerry Carlin

Eaton Corporation

Kenneth Rasmussen

Eaton Corporation - Hydraulics Operations

James Simpson

Holding Company

Rahul Bharadwaj

Lydall Filtration/Separation Inc.

Thomas Carroll

Naval Sea Systems Command/SEA 05Z6

Chris Bacon

Nexteer Automotive

Kevin Bresnahan

Parker Hannifin Corp.

Jim Janecke

Parker Hannifin Corp.

Mike Coffy

Snap-tite, Inc.

John Walrad

Wayne Wilcox

Past Projects

ISO 5781:2000 - Mounting surfaces for hydraulic pressure-reducing, sequence, unloading, throttle and check valves

ISO 5783:1995 - Code for identification of hydraulic valve mounting surfaces and cartridge valve cavities

ISO 6263:1997 - Mounting surfaces for hydraulic compensated flow control valves

ISO 6264:1998 - Mounting surfaces for hydraulic pressure-relief valves

ISO 7368:1989 - Cavities for two-port hydraulic slip-in cartridge valves

ISO 7790:1997 - Clamping dimensions for four-port hydraulic modular stack valves and four-port directional control valves, sizes 02, 03 and 05

ISO 9461:1992 - Identificaiton of hydraulic valve ports, subplates, control devices and solenoids

ISO 10372:1992 - Mounting surfaces for four- and five-port hydraulic servovalves

ISO 16873:2002 - Mounting surfaces for hydraulic pressure switches

ISO 16874:2004 - Identification of hydraulic manifold assemblies and their components

ISO 4411:2009- Determination of hydraulic valve pressure differential/flow characteristics

ISO 4401:2005 - Mounting surfaces for hydraulic directional control valves

ISO 7789:2007- Cavities for two-, three- and four-port screw-in hydraulic cartridge valves with metric threads

Current Projects

ISO/CD 6263 - Hydraulic compensated flow control valve mounting surfaces [revision of ISO 6263:1997]

ISO/CD 7790 - Clamping dimensions for hydraulic four-port modular stack valves and four-port directional control valves [revision of ISO 7790:1997]

ISO/WD 17209 - Cavities with UN and UNF threads for two-, three- and four-port hydraulic screw-in cartridge valves

ISO/DIS 16873 - Hydraulic pressure switch mounting surfaces [revision of ISO 16873:2002]

Meeting Frequency

Three times per year, usually in person.

NFPA Staff Contact

Karen Boehme
Phone: (414) 778-3345

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