Import Differential Pressure Switch 851580801 — Buy in wholesale FOB from Supplier in China

The Differential pressure switch 851580801 is a mechanical switching device designed to activate at a preset pressure differential between two fluid ports. It features a diaphragm actuated contact mechanism with a range of 0.5 to 10 bar, adjustable via a calibrated screw, and operates within a temperature range of -20°C to 80°C. The housing is constructed from die-cast aluminum with an IP65 rating, and the electrical contacts are rated for 10A at 250V AC. This model is explicitly listed as compatible with non-corrosive gases and clean air systems.

The switch uses a stainless steel diaphragm and brass fluid ports, consistent with standard industrial pressure switch design for durability in moderate process environments. Typical industry variants include models with normally open or normally closed contacts, and this unit follows the common SPDT configuration. It does not include electronic components or digital displays, relying instead on mechanical hysteresis for reliable switching without drift. The internal spring tension is factory-set and not user-adjustable beyond the external screw, which is a standard practice for cost-effective analog switches in heavy machinery.

This pressure switch is commonly used in filtration systems, compressor control circuits, and HVAC ventilation monitoring in chemical plants and power stations. Buyers typically source it for replacement in existing installations where exact mechanical compatibility is required. Packaging is in single-unit retail boxes with anti-static foam, and bulk orders are shipped in cartons of ten. Trade terms are FOB Deyang port, with lead times of 15 to 20 days after order confirmation. Payment is accepted via T/T, with no credit terms offered.

Dongfang Yoyik Engnieering Co., Ltd. is based in Deyang, Sichuan, China, and operates as a manufacturer of industrial sensors and control components. The company's profile confirms it handles pressure switches, sensors, and related electromechanical parts, with no mention of ISO certification, export history, or third-party quality audits. Its trust tier is listed as 'harbor', indicating basic supplier verification through the platform's logistics partner network. Response rate and average reply time are not available, suggesting limited active engagement with buyers.

The company does not publish its production capacity, workforce size, or client list. Its product range includes over 50 distinct sensor and switch models, many of which appear to be sourced or assembled rather than fully in-house designed. There is no evidence of R&D facilities, testing labs, or calibration certificates being issued for individual units. Buyers should treat this supplier as a distributor or assembler with local manufacturing capability, not as a certified OEM.