Chemical industry

During chemical reactions, GRAEFF differential pressure transmitters can be used to measure the liquid level, pressure, and flow rate inside containers to ensure accurate control of reaction conditions.

Monitor the flow rate of liquids or gases in pipelines to provide data support for optimizing the production process.

Measure the pressure difference at both ends of the filter in order to promptly detect any blockages and perform cleaning or replacement.

Oil and gas industry

During the process of oil and gas extraction, GRAEFF differential pressure transmitters can be used to measure wellhead pressure, bottomhole pressure, as well as pressure difference and flow rate in oil and gas pipelines, which helps to improve oil and gas recovery and ensure transportation safety.

Monitor the liquid level and pressure of oil tanks to achieve inventory management and safety monitoring.

Used for natural gas metering to ensure the accuracy of trade handover.

Power industry

In power plants, GRAEFF differential pressure transmitters can be used to measure parameters such as boiler furnace pressure, air duct pressure difference, and steam drum water level, playing an important role in the safe operation of boilers and improving power generation efficiency.

Monitor the inlet and exhaust pressure of the steam turbine and optimize its operating conditions.

Used for pressure measurement at the inlet and outlet of water turbines to ensure their normal operation.

Metallurgical Industry

In steel production, GRAEFF differential pressure transmitter can be used to measure the top pressure of blast furnace, hot blast furnace pressure, pressure difference of converter gas recovery system, etc., providing a basis for the control of smelting process.

Monitor the liquid level and flow rate of the ore slurry during the beneficiation process to improve beneficiation efficiency and product quality.

Used for pressure and flow measurement in non-ferrous metal smelting processes to ensure smooth production.

HVAC system

Ventilation system

Measure the air pressure difference inside the ventilation duct to determine the air flow rate and the operating condition of the ventilation system.

Assist in adjusting the operating speed of ventilation equipment to achieve energy conservation and optimize indoor air quality.

Air-conditioning system

Monitor the pressure difference of the filter in the air conditioning unit. When the pressure difference exceeds the set value, it prompts the need to clean or replace the filter to ensure the normal operation of the air conditioning system and the air purification effect.

Measure the pressure difference between the evaporator and condenser to determine the working status and fault diagnosis of the refrigeration system.

Water treatment area

water treatment

Measure the pressure difference between the inlet and outlet of the raw water, determine the operation of the pre-treatment filter, and perform backwashing operations in a timely manner.

Monitor the inlet and outlet pressure difference of membrane treatment equipment such as ultrafiltration and reverse osmosis to evaluate the degree of membrane fouling and performance, and determine the cleaning timing.

Sewage treatment

Measure the liquid level of the sewage tank, convert the liquid level signal into an electrical signal through the GRAEFF differential pressure transmitter, and achieve automatic drainage control.

Monitor the pressure difference at various stages of the sewage treatment process, such as sedimentation tanks, biological reaction tanks, etc., to provide a basis for process adjustment.

Food and pharmaceutical industry

Food processing

During the food production process, GRAEFF differential pressure transmitters can be used to measure the liquid level and pressure inside containers, ensuring the accuracy and consistency of the production process.

Monitor the pressure difference of the filter to ensure hygiene and safety during the food production process.

Pharmaceutical industry

Used for measuring pressure and liquid level in pharmaceutical reaction vessels, controlling reaction conditions, and ensuring drug quality.

Measure the pressure difference in the clean room, maintain a positive or negative pressure environment in the clean room, and prevent cross contamination.

Aircraft system

 In the fuel system of an aircraft, GRAEFF differential pressure transmitter can be used to measure the pressure difference of fuel filters, the inlet and outlet pressure difference of fuel pumps, etc., to ensure the normal operation of the fuel system.

Monitor the pressure difference of the aircraft hydraulic system to ensure the normal operation of key components such as the flight control system and landing gear.

Measure the air pressure difference in the aircraft cabin, provide data support for the cabin pressure regulation system, and ensure passenger comfort and safety.

Spacecraft system

In the propulsion system of spacecraft, GRAEFF differential pressure transmitter can be used to measure the flow rate and pressure difference of fuel and oxidizer, achieving precise propulsion control.

Monitor the pressure difference inside the spacecraft cabin and maintain suitable environmental conditions inside the cabin.

Waste gas treatment

Measure the pressure difference between the inlet and outlet of exhaust gas treatment equipment (such as dust collectors, desulfurization towers, denitrification towers, etc.), evaluate the operating effect and resistance of the equipment, and carry out maintenance and cleaning in a timely manner.

Monitor the pressure difference in the exhaust emission pipeline to ensure that the exhaust emissions comply with environmental standards.

Waste water treatment

Measure the liquid level and pressure difference of wastewater treatment equipment (such as grids, sedimentation tanks, biological treatment tanks, etc.) to achieve automated control and optimized operation, monitor the flow rate and pressure of wastewater discharge outlets, and ensure that wastewater is discharged in compliance with standards.