Suited for pressures up to 20,000 psi, AST4400 and AST4600 Hammer Union Pressure Transmitters are available with intrinsically safe or explosion proof approvals and with SIL2 ratings. Units address issue of drift common with intense applications by employing thick Inconel™ 718 diaphragm and silicon strain gauges. Cage around transmitter is designed to protect sensor and mating connector, allowing for proper drainage in flooding situations.