{"id":3341,"date":"2026-02-06T16:33:05","date_gmt":"2026-02-06T09:33:05","guid":{"rendered":"http:\/\/new.tanthanhvalve.com.vn\/san-pham\/van-buom-gang-dong-mo-khi-nen\/"},"modified":"2026-02-06T16:33:05","modified_gmt":"2026-02-06T09:33:05","slug":"pneumatic-cast-iron-butterfly-valve","status":"publish","type":"product","link":"https:\/\/valvecongnghiep.com\/en\/product\/pneumatic-cast-iron-butterfly-valve\/","title":{"rendered":"Pneumatic Cast Iron Butterfly Valve"},"content":{"rendered":"

What is a Pneumatic Cast Iron Butterfly Valve?<\/h2>\n

A pneumatic cast iron butterfly valve<\/strong> is a type of device controlled by a pneumatic system, consisting of a butterfly valve combined with a pneumatic actuator. Compressed air is supplied and distributed through a solenoid valve into the actuator, pushing the piston to move along its full stroke. This generates torque on the screw shaft, causing the valve stem to rotate 90 degrees and completing the opening cycle. The same process applies to the closing cycle (for double-acting types).<\/p>\n

\u00a0\"Pneumatic<\/a><\/p>\n

For single-acting types, the spring force performs the closing cycle. These valves operate relatively quickly and do not require manual operation, making them ideal for saving human resources and time.<\/p>\n

Pneumatic Cast Iron Butterfly Valve<\/span><\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Size valve<\/span><\/td>\n40A<\/span><\/td>\n50A<\/span><\/td>\n65A<\/span><\/td>\n80A<\/span><\/td>\n100A<\/span><\/td>\n125A<\/span><\/td>\n150A<\/span><\/td>\n200A<\/span><\/td>\n250A<\/span><\/td>\n300A<\/span><\/td>\n<\/tr>\n
1.1\/2″<\/span><\/td>\n2″<\/span><\/td>\n2.1\/2″<\/span><\/td>\n3″<\/span><\/td>\n4″<\/span><\/td>\n5″<\/span><\/td>\n6″<\/span><\/td>\n8″<\/span><\/td>\n10″<\/span><\/td>\n12″<\/span><\/td>\n<\/tr>\n
Actuator<\/span><\/td>\nNKD-063<\/span><\/td>\nNKD-75<\/span><\/td>\nNKD-083<\/span><\/td>\nNKD-092<\/span><\/td>\nNKD-105<\/span><\/td>\nNKD-125<\/span><\/td>\nNKD-140<\/span><\/td>\nNKD-160<\/span><\/td>\n<\/tr>\n
Ope. Type<\/span><\/td>\nDouble Acting<\/span><\/td>\n<\/tr>\n
Ope. Pressure<\/span><\/td>\n2kgf\/cm\u00b2 \u2192 8kgf\/cm\u00b2<\/span><\/td>\n<\/tr>\n
Ope. Angle<\/span><\/td>\nG\u00f3c 90\u00b0<\/span><\/td>\n<\/tr>\n
Connection<\/span><\/td>\nJIS10K\/ 20K \/ DIN PN10 \/ DIN PN16<\/span><\/td>\n<\/tr>\n
Valve Material<\/span><\/td>\nBody<\/span><\/td>\nDisc<\/span><\/td>\nStem<\/span><\/td>\nSeat<\/span><\/td>\n<\/tr>\n
Cast Iron FC<\/span><\/td>\nCF8 \/ Inox 304<\/span><\/td>\nSUS304 \/ Inox 304<\/span><\/td>\nEPDM \/ NBR<\/span><\/td>\n<\/tr>\n
Accessories<\/span><\/td>\nLimit Switch Box, Solenoid Valve, Air Filter Regulator<\/span><\/td>\n<\/tr>\n
Fluid<\/span><\/td>\nWater, Steam, Oil, Gas, Air<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Advantages and Applications of Pneumatic Cast Iron Butterfly Valves<\/h2>\n

Advantages<\/h3>\n