Standard specifies dimensions for four-port hydraulic directional control valves. Ensures interchangeability of valves in industrial equipment. Replaces ISO 4401:1994 with technical revisions
AGE23/43/33 Series features hard bonded rubber seats for international compatibility. Self-energizing seat design provides pressure endurance and low seating torque. Available in sizes from 40A to 1800A with 10:1 to 15:1 flow ratio
ASME B16.34-2020 covers flanged, threaded, and welding end valves. Standard includes 8 main sections covering various valve types and requirements. Contains 12 mandatory appendices and 10 non-mandatory appendices
DIN3352 F4 and F5 non-rising stem valves available in various sizes. Type C valves offer both standard and big size options. AS 2638.2 and BS 5163 series available in different sizes
ASME A105/105M covers carbon steel forgings for piping applications. ASME A181/181M specifies carbon steel forgings for general purpose piping. ASME A182/182M covers high-temperature service forged steel components. ASME A727/727M defines carbon steel forgings for piping components. ASME A961 establishes common requirements for piping components
Valve regulates fluid flow by opening, closing or partially obstructing passages. Fluid flows from higher to lower pressure in open valves. Word derived from Latin "valva" meaning door part