AST4900 pressure sensor

The AST4900 is a competitively priced, high-quality pressure sensor suitable for measuring gases and liquids in high-purity applications. These stainless steel sensors are free of oil-fill, welds and internal O-rings, which eliminates the risk of system contamination in extreme conditions. The sensors are available with two standard fittings: 0.25-in. NPT male and 0.25-in. VCR male. Each sensing element is machined from 316L stainless steel and is electropolished to remove contaminants. The one-piece design can also be manufactured using Inconel 718, a nickel alloy with a wide range of chemical compatibility. The AST4900 can be scaled for pressure ranges of 0–25 psi to 0–10,000 psi. Built to operate in temperatures that range from –40°F to 185°F, this model’s standard performance is rated to 0.25% best-fit straight line (BFSL). Moreover, the AST4900 carries 2X over-range and 5X burst pressure protection, and is built to withstand more than 100 million pressure cycles.