A new ISO Technical Report has recently been published and is now available from the National Fluid Power Association (NFPA).
ISO/TR 17209:2013, Hydraulic fluid power – Two-, three- and four-port screw-in cartridge valves – Cavities with ISO 725 (UN and UNF) threads
This Technical Report specifies the dimensions and provides other data relating to cavities with ISO 725 UN and UNF threads in which two-, three- and four-port screw-in cartridge valves are mounted in order to ensure dimensional interchangeability. These cartridge valves are generally used in industrial, agricultural, mining and mobile equipment.
Benefits: This dimensional interchangeability technical report benefits users by allowing them to purchase hydraulic two-, three- and four-port screw-in cartridge valves from multiple suppliers, and manufacturers of these valves to benefit from economies of scale afforded by the standard.
NFPA list price:
NFPA member price:
NFPA provides a forum for the fluid power industry’s channel partners—manufacturers, suppliers, distributors, customers and educators. Its U.S. and multinational members work cooperatively in advancing hydraulic and pneumatic technology through the association’s many programs and initiatives. NFPA coordinates standards development for fluid power at the industry and international levels. These standards are intended as guides to aid the manufacturer, the consumer, and the user.