{"id":14887,"date":"2026-10-06T07:27:24","date_gmt":"2026-10-06T07:27:24","guid":{"rendered":"https:\/\/anphuthanhvalve.com\/?post_type=product&p=14887"},"modified":"2026-10-06T07:30:24","modified_gmt":"2026-10-06T07:30:24","slug":"ydk-brass-threaded-air-release-valve-kaxt-16","status":"publish","type":"product","link":"https:\/\/anphuthanhvalve.com\/en\/ydk-brass-threaded-air-release-valve-kaxt-16\/","title":{"rendered":"YDK BRASS THREADED AIR RELEASE VALVE | MODEL: KAX(T)-16"},"content":{"rendered":"

In domestic water supply systems, HVAC piping, chillers, and small branch pipe assemblies, accumulated air easily causes air lock, which obstructs the flow and creates noise in the pipes. The YDK brass threaded air release valve, Model KAX(T)-16<\/strong>, is a compact automatic air release solution with flexible threaded-connection installation, helping to remove air pockets that build up at the high points of the system.<\/p>\n

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The YDK brass threaded air release valve, Model KAX(T)-16<\/figcaption><\/figure>\n

Construction of the YDK brass threaded air release valve KAX(T)-16<\/h2>\n

The YDK brass threaded air release valve KAX(T)-16<\/strong> belongs to the single air valve type, with a construction of 6 main parts:<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
No.<\/th>\nComponent<\/th>\nMaterial<\/th>\nFunction<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nBody<\/td>\nBrass<\/td>\nMain pressure-bearing shell, threaded connection to the pipeline, houses the float chamber<\/td>\n<\/tr>\n
2<\/td>\nRing\/Gasket<\/td>\nStainless steel 304<\/td>\nSeals the joints between parts and prevents leakage<\/td>\n<\/tr>\n
3<\/td>\nLever<\/td>\nStainless steel 304<\/td>\nGuide shaft for the float ball, raising\/lowering the float ball to close\/open the valve<\/td>\n<\/tr>\n
4<\/td>\nFloat ball<\/td>\nStainless steel\/PTFE<\/td>\nAttached to the lever to close\/open the valve<\/td>\n<\/tr>\n
5<\/td>\nCover<\/td>\nBrass<\/td>\nSeals the float chamber, preventing the medium and air from surging back out of the valve<\/td>\n<\/tr>\n
6<\/td>\nDischarge assembly<\/td>\nBrass<\/td>\nGuide shaft for the float to open and close<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Common dimensions of the YDK brass threaded air release valve<\/h2>\n

The length L, height H, and thread size R of the air release valve<\/a> will help engineers draw accurate designs and plan the actual installation space with ease:<\/p>\n

\n\n\n\n\n\n\n\n
DN<\/th>\nThread size (R)<\/th>\nL (Length \u2013 mm)<\/th>\nH (Height \u2013 mm)<\/th>\n<\/tr>\n<\/thead>\n
15<\/td>\n1\/2″<\/td>\n47<\/td>\n73.5<\/td>\n<\/tr>\n
20<\/td>\n3\/4″<\/td>\n47<\/td>\n73.5<\/td>\n<\/tr>\n
25<\/td>\n1″<\/td>\n47<\/td>\n75<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Operating principle of the brass threaded air release valve<\/h2>\n

The YDK air release valve, KAX(T)-16, operates automatically through a fully automatic floating-ball mechanism, with no manual intervention required. The operating principle of the device is based on the difference in density between air and water, as follows:<\/p>\n

1. Water filling \/ system start-up stage<\/h3>\n

When the pipeline begins to be filled with water, the air in the pipe is pushed toward the high points (where the air release valve is installed). At this point there is no water in the valve chamber and the float sits in its low position \u2192 the air vent opening is fully open, and air escapes freely to the outside at a high flow rate.<\/p>\n

2. Normal operation stage (micro-venting)<\/h3>\n

When the pipeline is full of water, the water rises in the valve chamber, pushing the float upward and pressing the float pin\/seat against the vent opening to seal it. The valve is then fully closed, preventing water from leaking out.<\/p>\n

However, during operation, air is still continuously generated in the pipeline due to:<\/p>\n