A7 High Purity Semi-Auto Brass Changeover Manifold 0-100 PSIG W/Check Valves 36" SS Pigtails Model 914-1-100-FPB604-3-CV

The Series 914 semi-automatic changeover manifold is another solution for providing an uninterrupted supply of gas to your instrumentation or process. It incorporates a specially machined two-regulator in one body that simplifies changeover operation and reduces the wall space required. The feed and line regulators are of high purity construction with stainless diaphragms and diffusion resistant construction capable of passing a helium leak rate test of 1x10-9.

Available in both brass and 316SS construction, the 914 Series is provided complete with changeover regulator and line regulator installed on a mounting bracket for easy installation. Manifold sections are ordered separately.

The manifold is assembled using the 914 central control section shown on this page and two header manifolds or ss pigtail set to provide the supply banks. A simple two station semi-automatic manifold commonly used to ensure a continuous supply of carrier gas to a gas chromatograph employs a central control section with a pigtail installed on both inlets. Switchover Pressures vary between 100-300 psig on certain models.

With the (optional) 914-3B and 914-3BEX series pressure switches and the (optional) 914-AVA alarm this will notify the user that a changeover has taken place, the manifold needs to be set to switch the other way, and the empty cylinders should be changed. Pressure switch assemblies should be installed one switch on each side.