Product Details:
1982 Series, Bottom stem Ametek Solfrunt Gauge 6" 30 − 0 − 100 psi 2" 1 psi 1/2 NPT Back stem 1903 Series. Phosphor bronze Bourdon tube. Brass socket. Designed for pressure measurements as low as a few inches of water, these gauges, in spans from 30" H20 to 10 psi utilize a unique sensing element. It is composed of a stack of diaphragm capsules, each consisting of two plates contoured into a convex / concave configuration to nest into one another. This results in a low internal volume element developing large forces to drive the mechanism in extremely low pressure ranges.

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