Norgren Pneumatics Pressure Switch

This is a specialized industrial pneumatic component, specifically a pressure switch assembly, resting on a folded Lantec Packaging Machines document. The device features a multi-material construction consisting of a light-gray cast metal or high-density polymer housing on the left, which serves as the pneumatic connection manifold. This manifold includes mounting holes and an internal port with a visible O-ring for sealing. The central body comprises a threaded white-coated steel barrel leading to a hexagonal brass adjustment or coupling nut. The rightmost section is capped with a black rectangular electrical connector, typically a DIN 43650 type, used for wiring the switch into a control system. Notable markings include a diagrammatic cross and an arrow indicating directional flow or pressure orientation. The overall condition appears to be excellent and representative of a modern industrial part; the metal surfaces show no signs of oxidation, and the polymer components are free of scuffing or mechanical wear. The unit likely dates to the late 2010s or early 2020s. Its robust construction and precision machining indicate high-quality manufacturing typical of brands like Norgren or SMC.

I have conducted a visual appraisal of this Norgren-style pneumatic pressure switch. Based on the provided imagery, the item appears to be in 'New Old Stock' (NOS) or 'Like New' condition. The light-gray manifold exhibits a clean cast finish with a pristine O-ring, and the white-coated barrel and brass hexagonal nut show no signs of thread deformation or wrench marks, suggesting it has never been installed or subjected to high-cycle stress. The DIN 43650 connector is intact without oxidation on the pins. The market for high-quality pneumatic components remains stable, particularly for modules compatible with Lantec packaging systems. Comparables for new Norgren 18D or similar series switches range from $220 to $340 at retail; however, secondary market values typically see a 30-50% reduction unless sold through a certified refurbisher. This specific unit’s value is bolstered by its excellent physical condition and the inclusion of the manifold block, which is often sold separately. While the visual indicators suggest authenticity, a definitive valuation is limited by the inability to perform a continuity test or verify internal diaphragm integrity. To fully authenticate and guarantee the item's operational value, an in-person inspection would involve electrical resistance testing across the terminals and a pneumatic pressure test to verify the set-point accuracy. Presence of original OEM packaging and a certificate of conformity would further solidify the high end of the estimated range. Without these, the item is categorized as a high-quality replacement part.