Butterfly Valves on Alibab.com
- Find butterfly valve manufacturers and exporters.
- http://butterfly_valve.manufacturers.alibaba.com/

Check Valve On Alibaba.com
- Find manufacturers and exporters of check valves.
- http://check_valve.manufacturers.alibaba.com/

Ball Valve Manufacturers
- Directory of ball valve manufacturers and exporters from different countries.
- http://ball_valve.manufacturers.alibaba.com/

Valve Diagnostics
- Online resource for valve installation, operation and maintenance knowledgebase.
- http://www.valvediagnostics.com

Petro Pages Valve
- Online buyer's guide providing reference to process & energy industries. Find suppliers cross-referenced through an industry specific valve categorization system.
- http://valve.petropages.com

Valve Resource
- Online technical resources for the fluid and gas control valve industry.
- http://www.valveresource.com

Factory Direct Pipeline Products, Inc.
- Online shopping for valves, pressure Gauges, polypropylene fittings and bi-metal thermometers.
- http://www.fdpp.com

iProcesSmart.com
- Purchase online valves, actuators and controls for liquids and gas handling.
- http://www.iprocessmart.com/valves.htm

The Valve Shop
- Online shopping facility for automated valves, actuators and accessories.
- http://www.thevalveshop.com/

Valveweb
- A directory for valve repair, distribution, and manufacturing companies.
- http://www.valveweb.com/

Valvesearch - World Directory
- A comprehensive directory of industrial valve and actuator sales representatives across the world.
- http://www.valvesearch.net

Valve China
- Informational site on valve manufacturing in China. Includes industrial and market trends and international valve manufacturing standards.
- http://www.valvechina.com

Articles on Valves
- Links to many articles on valves and control valves.
- http://www.plant-maintenance.com/maintenance_articles_valves.shtml

The Beschloss Perspective
- An insider's view into the valve manufacturing and marketing community.
- http://www.americanvalve.com/IndNews/index.html