On the precise track of industrial automation, differential pressure measurement serves as the "sensory nerve" for key parameters such as flow rate, liquid level, and pressure. Capture the subtle changes of pressure differences in real time to provide key data for production decisions. The GRAEFF differential pressure measurement series, with its leading technology and ultimate reliability, has become the "hardcore leader" in process control across various industries, safeguarding the accuracy and safety of industrial production.

Product Introduction

The GRAEFF differential pressure measurement series is a "precision tool" in industrial measurement:

Core technology: Utilizing the world-leading single-crystal silicon pressure sensor technology and packaging process, combined with a powerful 24-bit ADC, it achieves high-precision signal conversion. Innovative dual compensation technology further ensures the true high accuracy of measurement.

Performance advantages: Strong anti-interference ability and outstanding stability, with stability reaching ±0.1% for 3 years. It can maintain precise performance even after long-term operation.

Applicable scenarios: The measured medium covers gas, steam and liquid. The power supply is compatible with 10~36VDC (24VDC is recommended). It has a wide range of adaptability for ambient temperature -40 ℃ to 85℃ and medium temperature -40 ℃ to 120℃. It can work stably even under harsh working conditions.

Intelligent interaction: Supports HART protocol communication, allowing for remote operation and parameter configuration, meeting the demands of industrial intelligent upgrades.

Visualization and Customization: Equipped with LCD/OLED display, it supports multi-dimensional customization such as pressure measurement range (1~6KPa to 400~4000 kpa), flange/diaphragm material (304/316 stainless steel, corrosion-resistant alloy, etc.), and installation dimensions.

Application field

Differential pressure measurement is the "data eye" of industrial production. GRAEFF's differential pressure measurement series products have deeply permeated various industries and have become the "health monitor" of equipment and processes.

Chemical industry

In processes such as chemical synthesis, fluid transportation, and equipment operation and maintenance, precise monitoring of differential pressure changes in reaction vessels, pipelines, and heat exchangers provides data support for process parameter regulation and equipment failure early warning, ensuring production safety and product quality. Like chemical reaction vessels, by relying on their real-time capture of internal pressure differences, they can precisely control the reaction rate and enhance the purity of the products. The heat exchanger can promptly determine the fouling situation by monitoring the differential pressure between the inlet and outlet, thus avoiding a decline in heat exchange efficiency.

The oil and gas industry

Throughout the entire process of crude oil extraction, refining and processing, and pipeline transportation, the differential pressure data of oil Wells, reactors, and long-distance pipelines are accurately detected to provide core basis for capacity judgment, pressure balance, and leakage early warning, ensuring the efficient and safe operation of the entire chain. For instance, in long-distance oil and gas pipelines, by relying on its dynamic monitoring of the differential pressure inside the pipe, leakage hazards can be quickly identified and transportation risks can be reduced. The oil well can accurately determine the production capacity of the oil layer and the safety status underground through the pressure difference it monitors.

Electric power industry

In the energy conversion process of thermal power, nuclear power and hydropower, accurately measuring the differential pressure changes of boiler steam, cooling systems and reservoirs provides data support for combustion optimization, equipment protection and dispatching decision-making, and improves energy utilization efficiency and operational safety. Like thermal power boilers, by relying on its real-time monitoring of steam differential pressure, it can accurately calculate steam flow and optimize combustion efficiency. The nuclear power cooling system can ensure the stability of heat exchange in the reactor and safeguard the safety of nuclear power through the differential pressure data it monitors.

Metallurgical industry

In the process links such as smelting, cooling and dust removal, the differential pressure changes of blast furnaces, converters and dust removal pipelines are precisely monitored to provide support for the regulation of smelting atmosphere, equipment cooling guarantee and environmental protection compliance, and to facilitate the lean process and long-term operation of equipment. For instance, in blast furnace smelting, by relying on its monitoring of the differential pressure of the gas inside the furnace, the smelting conditions can be optimized and the metal yield can be increased. The dust removal equipment can promptly determine the degree of filter bag blockage through the differential pressure of the pipeline it captures, ensuring the dust removal effect.

Pharmaceutical & food and beverage industry

In scenarios such as aseptic production, fermentation processing, and ingredient filling, precisely controlling the differential pressure of fermentation tanks, filling equipment, and conveying pipelines provides guarantees for dosage accuracy, product consistency, and hygiene and safety, meeting the strict industry standards. Just like the fermentation tanks in biopharmaceuticals, by monitoring the internal pressure difference, the growth environment of the bacterial community can be optimized and the activity of the drugs can be enhanced. The beverage filling line can ensure that the filling volume of each bottle of product is precise and consistent through the differential pressure data it regulates.

Municipal & environmental protection industry

In scenarios such as water supply dispatching, sewage treatment, and waste gas control, precise monitoring of differential pressure changes in water supply networks, sewage ponds, and environmental protection equipment provides data support for flow regulation, optimization of treatment efficiency, and compliance with emission standards, facilitating intelligent municipal operation and maintenance and achieving environmental protection compliance. For instance, in urban water supply networks, by monitoring the differential pressure of pipelines through it, the flow distribution can be grasped and the water supply dispatching can be optimized. The sewage filtration system can promptly determine the clogging of the filter material through the differential pressure it monitors, ensuring the treatment efficiency.

Aerospace & automotive industry

During the manufacturing and operation of equipment, precise detection of the differential pressure changes in fuel tanks, hydraulic systems, and engines provides data support for liquid level judgment, power regulation, and emission compliance, ensuring the performance of equipment and operational safety. Just like the fuel tank of an aircraft, by indirectly measuring the differential pressure of the liquid level, it can accurately feedback the fuel reserve and ensure flight safety. The car engine can optimize fuel injection and enhance power and fuel economy through the intake manifold differential pressure it monitors.

Summary

As the "sensory nerve" and "hardcore leader" in the field of industrial automation, GRAEFF's differential pressure measurement series, with its core advantages of high precision, strong stability, and resistance to harsh working conditions, combined with intelligent interaction and multi-dimensional customization capabilities, has become a benchmark for precision measurement across industries. Help enterprises achieve efficient operation and maintenance, energy conservation and consumption reduction, as well as compliant production, and comprehensively safeguard the accuracy and reliability of industrial production.