Import Bimetal Thermometer Wss-561 — Buy in wholesale FOB from Supplier in China

The WSS-561 is an industrial bimetal thermometer manufactured by Dongfang Yoyik Engnieering Co., Ltd. in Deyang, Sichuan Province, China. This dial-type temperature instrument employs a bimetallic strip coil mechanism that deflects in response to thermal expansion, driving a pointer across a calibrated scale for direct temperature reading. The WSS-561 designation follows Chinese industrial instrument naming conventions, where WSS denotes a bimetal thermometer with axial connection. Typical measurement ranges for this series span -80 to 600 degrees Celsius, with standard dial diameters of 60mm, 100mm, or 150mm depending on application visibility requirements.

The sensing element consists of a helically wound bimetallic strip, typically comprising bonded layers of stainless steel and brass or invar with differing coefficients of thermal expansion. The WSS-561 construction features a stainless steel case and wetted parts for corrosion resistance in power plant and heavy industrial environments. Stem lengths are configurable to suit immersion depths in pipes, tanks, and process vessels. Accuracy classes typically fall within 1.0 to 1.5 percent of span under standard reference conditions. The axial connection format positions the process connection behind the dial, suited for through-panel or surface-mounted installations where space is constrained.

Power generation facilities represent the primary market, particularly thermal and nuclear plants requiring redundant temperature monitoring of steam, water, and oil systems. The supplier's listed product range includes complementary items, bolt electric heating rods, visible light transmitters, and LVDT sensors, indicating positioning within the power plant spare parts ecosystem. Buyers should confirm stem diameter, thread specification (typically M20x1.5 or G1/2), required insertion length, and whether the application demands防震 (anti-vibration) or explosion-proof construction. All calibration certificates, material certificates, and conformity to GB/T or IEC standards should be requested prior to order placement.

Dongfang Yoyik Engnieering Co., Ltd. operates from 4-3F, Building A, Huashan Platz in Deyang, Sichuan Province, China, postal code 618000. The company maintains a trust tier classification of harbor within its marketplace profile. Its listed response rate stands at 0.00 percent with zero average response hours recorded, indicating no response activity through the platform channel. The supplier's self-description positions itself as a large-scale mechanical and electrical equipment company with technical strength and brand reputation, though these claims should be independently verified.

The company's product portfolio extends beyond temperature instrumentation to encompass bolt electric heating rods, visible light transmitters, flame monitoring equipment, digital temperature monitors, tilt angle sensors, magnetic position sensors, velocity sensors, excitation regulator modules, serial interfaces, AC current transducers, magnetic float level gauges, LVDT sensors, furnace tube leakage detection boards, pressure transmitters, eddy current sensors, battery chargers, extension cables, high-voltage frequency converter components, bolt heaters, hydrogen leak detection probes, pressure switches, and guide vane opening indicators. This breadth suggests sourcing and trading activity alongside manufacturing, with acting relationships claimed for foreign brands including Eaton Vickers. No factory certification details, quality management system registrations, or audited financial information is present in the available data.