Marine type A cap type air pipe head (ballast tank, helmet type air breathing cap)

Marine cap air tube head cap ventilation cap cap air cap, usually marked as:

Cast iron cap type air pipe head with nominal size 50mm, press GB2501 flange dimension and sealing surface

Cap type air pipe head, hat type air permeable cap, cap type air cap, AS50HT CB/T3594-94

Cast iron cap type air pipe head with nominal size 65mm, press GB569 flange dimension and sealing surface

Cap type air pipe head, hat type air permeable cap, cap type air cap, AS65HT CB/T3594-94

Cast iron cap type air pipe head with nominal size 80mm, press GB2501 flange dimension and sealing surface

Cap type air pipe head, hat type air permeable cap, cap type air cap, AS80HT CB/T3594-94

The nominal diameter of 100mm GB2501, according to the size and flange sealing type air pipe head the ball cap

Cap type air pipe head, hat type air permeable cap, cap type air cap, AS100QT CB/T3594-94

The nominal diameter of 150mm GB2501, according to the size and flange sealing type air pipe head the ball cap

Cap type air pipe head, hat type air permeable cap, cap type air cap, AS150QT CB/T3594-94

The nominal diameter of 200mm GB2501, according to the size and flange sealing type air pipe head the ball cap

Cap type air pipe head, hat type air permeable cap, cap type air cap, AS200QTCB/T3594-94

Cast iron cap type air pipe head with nominal size 250mm, press GB2501 flange dimension and sealing surface

Cap type air pipe head, hat type air permeable cap, cap type air cap, AS250HT CB/T3594-94