Pipeline Differential Pressure Density Meter

Crude oil / refined-oil tank density + online monitoring of the oil–water interface

In large oil storage tank farms, long-term reliance on manual sampling for offline density measurement and on‑experience judgment of the oil‑water interface has resulted in delayed metering, high risks of water being pumped into the system, and a heavy burden of radiation management associated with nuclear density meters. The PS7300 differential pressure density meter is mounted laterally on the tank wall, providing real‑time density readings and automatically detecting abrupt changes at the oil‑water interface, enabling API gravity calculation within seconds and automated bottom‑of‑tank drainage, thereby completely replacing the nuclear source solution.

Real-time density tracking of polymerization reactions · Automatic determination of reaction end points

Customers face challenges in large-scale polymerization reactors, including delayed determination of the reaction endpoint, high safety risks associated with manual sampling, and poor batch-to-batch consistency. The PS7300 differential pressure density meter features a B‑bend flange‑mounted, single‑hole installation on the reactor top, bypassing the agitator and heating coils. It tracks real‑time changes in the reaction slurry’s density with a resolution of 0.001 g/cm³, supports DCS‑triggered automatic termination and runaway‑prevention alerts, and enables precise quantitative control of the reaction endpoint.

Zero Liquid Discharge (ZLD) for Industrial Wastewater · Precise Concentration Control in Chemical Concentration/Crystallization Processes

In chemical concentration and zero‑liquid‑discharge (ZLD) processes, customers face challenges such as the highly corrosive nature of high‑concentration brines in MVR evaporators, as well as the risk of crystallization leading to jamming of conventional density meters and shutdowns due to scale formation. The PS7300 dual‑flange differential pressure concentration meter features a side‑mount configuration with Hastelloy C‑276 diaphragms and a PFA fluoropolymer coating, offering exceptional corrosion resistance and resistance to crystallization‑induced wear. It enables long‑term, stable online monitoring of density converted to concentration, supporting DCS closed‑loop precision control, preventing scale‑related downtime, and enhancing the purity and recovery rate of by‑product salts.

Oil/Water/Gas Interface Online Monitoring · Intelligent Water Cut Estimation

Blended oil recipe control · Sanitary clamp + PFA coating · MES batch traceability

Online Concentration Monitoring of 40% / 50% Urea Solution Storage Tanks

In the urea solution storage tank area of a large fertilizer plant, challenges include lengthy manual sampling and laboratory analysis prior to loading, significant trade‑based discrepancies due to concentration drift when converting to 100% basis, elevated risks of low‑temperature crystallization, and difficulties in verifying automotive urea AdBlue compliance. The Pisonics PS7300 dual‑flange differential pressure density meter is installed side‑mounted on 40% and 50% urea solution storage tanks, providing real‑time density measurements that are converted into weight‑percent concentration. This data supports the DCS/MES systems in enabling five‑minute automated pre‑loading verification, automatic 100%‑basis trade reconciliation, crystallization‑warning‑triggered heat‑trace interlocks, and end‑to‑end compliance monitoring of the AdBlue feedstock.