<br>When the valve is energized (or the manual button is turned ON), low-speed air supply is performed with the flow rate adjusted by the needle valve, and when the pressure on the outlet side of the valve exceeds a certain level, the main valve is opened to provide high-speed air supply. <br>When the valve is turned OFF, the outlet air is rapidly exhausted from the exhaust port.
<br>Be sure to check the model and dimensions of the old AR series products to be replaced (e.g., AR40, AR4000, or AR410) so an appropriate substitute can be ordered. <br>The discontinued AR series catalogs can be found here.
<br>You can also mount Rc1/8 fittings and tubing and move the pressure gauge to another location. <br>Note) Do not apply pressure higher than the max. display pressure to the pressure gauge during pressure adjustment; otherwise, the pressure gauge may be damaged.
<br>The square embedded type pressure gauge and adapter assembly can be removed and replaced with a new pressure gauge adapter assembly and a round type pressure gauge. <br>Replace the inside O-ring with a new one. If the O-ring is not replaced at this time, air will leak.
<br>Compressed air is released from the gap around the knob to the outside through the relief hole provided in the center of the regulator’s diaphragm. <br>If this leakage occurs in situations other than that described above, the internal parts may be damaged or foreign matter may be clogging the product.
<br>Possible causes of low bowl pressure are as follows. ① The IN-OUT are reversely connected. ② There is leakage from the bowl O-ring. ③ There is leakage from the lubrication plug O-ring. Take appropriate measures.
<br>Oil may accumulate in the regulator, causing a large amount to flow from the outlet side temporarily. <br>Install the lubricator on the outlet side of the regulator to avoid this.
<br>The elements of the current product (AW□□-A/-B) are interchangeable with those of the old AW series (4 digits: AW□□□□). <br>Note) The old AW series (4 digits: AW□□□□) was released in 1986 and its element material was switched from sintered metal to non-woven fabric in 1996.
<br>Please consider switching to a product from the VBA20A/40A series. <br>Further details on discontinued products can be found here.
<br>If there is no leakage on the outlet side of the VBA series regulator, it is probable that the seal is worn due to internal leakage.<br>The VBA series operation manual can be found here.
<br>If 2 booster regulators of the same size are installed in series, the supply flow rate to the second VBA may be insufficient, and the pressure may not be increased to the required level.<br>If the use of 2 booster regulators in series is desired, assuming that the outlet flow rate will be 1/2 and 1/2, check whether a VBA40A followed by a VBA20A can be used.
<br>However, this is the old part number of a discontinued product.<br>It has been refreshed and replaced with the VBA43A-04** (standard).
<br>While there were no major changes made, the product weight was reduced and tube detachability was improved. In addition, the KJ series was integrated into the new KQ2 series in accordance with the miniaturization of the series. <br>An additional seal type was also added. And in May 2015, a KQ2 series One-touch fitting with an oval release button was added.
<br>① KQ2E12-00□ (Bulkhead union) + KQ2R08-12A (Plug-in reducer)<br>② KQ2E12-03□ (Bulkhead connector) + KQ2H08-03□S (Male connector)
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