Pressure spikes above the
pressure instrument capabilities can cause permanent damage to mechanical and electrical components. Or worse, injury can occur to personnel from unintentional pressurized systems. With people, processes and profits in jeopardy,
manifold valves are essential in pressure applications. From safety to instrument protection, manifold valves are used to isolate, control, bleed and calibrate pressure instruments without process interruption. Manifold valves are used with pressure gauges, pressure switches, pressure transducers and transmitters. The most common manifold valves are direct or remote mount. Depending on the application one type can significantly improve the system performance over the other. For example, the direct mount valve manifolds are tailored to improve efficiency and to reduce energy costs. Shorter path flows reduce pressure drops and heat fluctuations, improving the overall energy efficiency of a system. In contrast, remote valve manifolds can be used to reduce or increase process temperature to protect instruments from temperatures beyond their limits.
This paper, courtesy of
Ashcroft, Inc., highlights the benefits and usage of most common manifold valves such as block and bleed, three and five-valve configurations.
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