Dear Sirs, DRA200 Series (Tied Type) is the Tied Diaphragm Pressure Reducing Regulators specially designed to use at the gas cabinet for ultra-pure semiconductor manufacturing, special gas line, value manifold boxes, and other research institutes. This series is the regulator that Diaphragm is tied with main valve, which will prevent pressure leaking even if foreign substances are foamed on valve sheet. So, it is the gas regulator designed focusing on the safety above all. In particular, it is very useful to protect the Diaphragm breaking by poisonous gas, flammable gas, and high corrosive gas, etc. Equipped with the DRASATR� own Locking-Plate Seal for which we hold a patent (Patent No. 10-0753280), this product has the following merits;Firstly, the pressure on the Diaphragm will be dispersed.
