在工业自动化与过程控制领域，精准、稳定、可靠的压力测量至关重要。GRAEFF（格拉夫）压力测量系列产品为各行各业提供了高性能的压力测量解决方案。无论是高温高压环境、腐蚀性介质，还是液位监测与防爆需求，GRAEFF（格拉夫）GP系列压力传感器都能精准感知压力变化，并将其转换为标准电信号，满足工业控制、数据传输与智能化管理的需求。（注：文中部分图片来源于网络，侵删）
In the field of industrial automation and process control, accurate, stable and reliable pressure measurement is of vital importance. GRAEFF's pressure measurement series products provide high-performance pressure measurement solutions for various industries. Whether it is high-temperature and high-pressure environments, corrosive media, or liquid level monitoring and explosion-proof requirements, the GRAEFF GP series pressure sensors can accurately sense pressure changes and convert them into standard electrical signals, meeting the needs of industrial control, data transmission, and intelligent management.
(Note: Some of the pictures in this article are from the Internet. If there is any infringement, please delete them.)
一、产品简介Product Introduction
GRAEFF（格拉夫）GP 系列压力传感器 / 变送器凭借高精度测量与稳定性能，结合防腐耐蚀、高防护等级及抗振动冲击的强环境适应性，提供多样化压力范围、信号输出及接口的灵活定制服务，实现多场景覆盖与定制化解决方案。涵盖多种型号，适应不同工业场景，包括：
GRAEFF's GP series pressure sensors/transmitters, with their high-precision measurement and stable performance, combined with corrosion resistance, high protection level and strong environmental adaptability to vibration and shock, offer flexible customization services for diverse pressure ranges, signal outputs and interfaces, achieving multi-scenario coverage and customized solutions. Covering multiple models, it is suitable for different industrial scenarios, including
GPN应变式系列压力变送器：
标准型、中高温型、高压型、本质安全型等多种型号可选。
压力测量范围广泛，覆盖-0.1~0MPa至0~250MPa
一般工业应用，高压液体气体控制与测量、石油化工、钻井平台防爆工业的压力测量与控制。
GPN strain gauge series pressure transmitter
A variety of models are available for selection, including standard type, medium and high-temperature type, high-pressure type, intrinsically safe type, etc.
The pressure measurement range is wide, covering from -0.1 to 0MPa to 0 to 250MPa
General industrial applications, high-pressure liquid and gas control and measurement, petrochemicals, and explosion-proof pressure measurement and control for drilling platforms.
GPS扩散硅系列压力变送器：
压力测量范围广泛，覆盖-100~0kPa至0~60MPa
该系列可用于液体、气体、食品、医药或有微粒的流体压力测量与控制。
GPS diffused silicon series pressure transmitter
The pressure measurement range is wide, covering from -100 to 0kPa to 0 to 60MPa
This series can be used for pressure measurement and control of liquids, gases, foods, medicines or fluids with particles.
GPC陶瓷压阻系列压力变送器：
压力测量范围广泛，覆盖-1~0bar至0~400bar
该系列可用于液体、气体压力测量与控制；各领域腐蚀性流体、气体测量与控制；空调制冷行业的流体压力进行测量与控制。
GPC ceramic piezoresistive series pressure transmitter
The pressure measurement range is wide, covering -1 to 0bar to 0 to 400bar
This series can be used for the measurement and control of liquid and gas pressure. Measurement and control of corrosive fluids and gases in various fields; Measurement and control of fluid pressure in the air conditioning and refrigeration industry.
GPCC系列陶瓷电容压力变送器
测量精度可达±0.5%FOS，温度特性良好
采用陶瓷厚膜一体化技术，性能优良，体积小，封装灵活，耐腐蚀，不用隔离可直接接触、测量腐蚀性介质。作为理想的压力感应元件，易于与变送器电子电路一体化理想集成可靠性高、稳定性好。
适用于液压系统、航空航天与国防、医疗、石油与天然气开采等领域。
GPCC Series Ceramic capacitive pressure transmitter
The measurement accuracy can reach ±0.5%FOS, and it has good temperature characteristics
Adopting ceramic thick film integrated technology, it features excellent performance, small size, flexible packaging, corrosion resistance, and can directly contact and measure corrosive media without isolation. As an ideal pressure-sensing element, it is easy to integrate with the electronic circuit of the transmitter, featuring high reliability and good stability.
It is applicable to fields such as hydraulic systems, aerospace and defense, medical care, oil and gas extraction, etc.
GPF系列溅射薄膜压力变送器
测量精度可达0.25%FOS，不锈钢封装
溅射金属基高精纳米膜芯体采用加工工艺，尺寸小，纳米薄膜应变电阻直接制作在金属弹性体上，在增大量程范围的同时，实现了敏感元件和弹性体的原子结合，最大限度的降低了传感器的蠕变迟滞，提高了产品在高温、高压、灰尘、潮湿等恶劣环境下的长期稳定性和可靠性。
适用于航空航天、矿山装备、工程装备、注塑机、石油、天然气等领域。
GPF Series Sputtering film pressure transmitter
The measurement accuracy can reach 0.25%FOS, and it is packaged in stainless steel
The sputtered metal-based high-precision nanofilm core adopts a processing technology with a small size. The nanofilm strain resistance is directly fabricated on the metal elastomer, which not only increases the measurement range but also realizes the atomic combination of the sensitive element and the elastomer, minimizing the creep hysteresis of the sensor to the greatest extent It has enhanced the long-term stability and reliability of the product in harsh environments such as high temperature, high pressure, dust and humidity.
It is applicable to fields such as aerospace, mining equipment, engineering equipment, injection molding machines, petroleum, and natural gas.
GPM系列微熔压力变送器
测量精度可达±0.5%FOS，压力量程0~1至60MPa
本压力传感器采用高可靠进口压力芯片，搭载宽温度补偿技术与灌胶防潮保护，性能稳定。支持全焊接、强抗振等特殊定制，满足多样化工业测量需求。
适用于液压系统及阀门、过程控制系统、工程系统、冲压、锻造等设备、制冷设备和HVAC控制等领域。
GPM Series Micro-melt pressure transmitter
The measurement accuracy can reach ±0.5%FOS, and the pressure range is from 0 to 1 to 60MPa
This pressure sensor adopts highly reliable imported pressure chips, is equipped with wide temperature compensation technology and potting moisture-proof protection, and has stable performance. Supports special customization such as full welding and strong vibration resistance to meet diverse industrial measurement requirements.
It is applicable to fields such as hydraulic systems and valves, process control systems, engineering systems, stamping, forging and other equipment, refrigeration equipment and HVAC control.
GPE系列压电压力变送器
测量精度可达±0.5%FOS，多种电气连接选择
这款压力传感器搭载进口芯片与激光调阻补偿技术，恒压供电确保稳定，标准输出便于对接自动化系统。隔离式结构可测多种流体，敏感元件响应灵敏。全不锈钢材质，耐腐蚀、强度高，能在恶劣环境中稳定工作。
适用于工业过程控制、液位测量、气体、液体压力测量、压力检测仪表、压力校准仪器、液压系统及开关、航空航海等领域。
GPE series Piezoelectric pressure transmitter
The measurement accuracy can reach ±0.5%FOS, and multiple electrical connection options are available
This pressure sensor is equipped with imported chips and laser resistance adjustment compensation technology. Constant voltage power supply ensures stability, and standard output facilitates connection with automated systems. The isolated structure can measure various fluids, and the sensitive element responds sensitively. Made of all stainless steel, it is corrosion-resistant, has high strength and can work stably in harsh environments.
It is applicable to industrial process control, liquid level measurement, gas and liquid pressure measurement, pressure detection instruments, pressure calibration instruments, hydraulic systems and switches, aviation and navigation, and other fields.
GPT系列盾构工程压力变送器
测量范围0~60MPa，防护等级IP68
采用高精度压力芯体和精密补偿技术进行宽范围温度补偿。压敏隔膜采用特殊处理的实心隔膜。精湛的机械传动结构设计，确保被测介质中的硬砂不会损坏隔离平膜片，结构紧凑，耐腐蚀、抗振动、抗硬砂粒冲击。
主要用于各种工程设备、隧道盾构机械、制砖机械、液压、石油勘探和水利河坝的泥浆测量。
GPT Series Shield Engineering Pressure Transmitter
Measurement range: 0 to 60MPa, protection grade: IP68
Wide-range temperature compensation is carried out by adopting high-precision pressure cores and precise compensation technology. The pressure-sensitive diaphragm adopts a specially treated solid diaphragm. The exquisite mechanical transmission structure design ensures that the hard sand in the measured medium will not damage the isolation flat diaphragm. The structure is compact, corrosion-resistant, vibration-resistant and resistant to the impact of hard sand particles.
It is mainly used for mud measurement in various engineering equipment, tunnel shield machinery, brick-making machinery, hydraulics, oil exploration and water conservancy river DAMS.
GPL系列投入式液位压力变送器
测量精度优于±0.5%FSO、防护等级IP65
GPL系列投入式液位型压力变送器是专为潜水液位测量设计，敏感元件采用扩散硅芯体、变送器内置强抗射频和电磁干扰的数字电路板、具有抗干扰能力强、温度补偿范围宽等特点。变送器标准本体采用 不锈钢材料、采用完善的装配工艺，确保在高要求工业场合坚固耐用使用寿命长。
GPL Series Submersible Level Pressure Transmitter
The measurement accuracy is better than ±0.5%FSO and the protection grade is IP65
The GPL series submersible liquid level pressure transmitter is specially designed for submersible liquid level measurement. The sensitive element adopts diffused silicon core, and the transmitter is equipped with a digital circuit board with strong resistance to radio frequency and electromagnetic interference. It features strong anti-interference ability and a wide temperature compensation range. The standard body of the transmitter is made of stainless steel and adopts a perfect assembly process to ensure its durability and long service life in high-demand industrial environments.
GPG系列隔膜抗震压力表
精度等级1.6级，测量范围70MPa、100MPa、160MPa
GPG隔膜抗震压力表采用德国波登管元件和机芯等元件组成、特殊隔离膜片机械结构原理，环保介质填充、便于安装、直观显示压力。
适用于石油、化工、船舶、电力、制药设备、食品机械、重工机械等领域。
GPG Series Diaphragm Anti-Seismic Pressure Gauge
Accuracy grade 1.6, measurement range 70MPa, 100MPa, 160MPa
The GPG diaphragm anti-seismic pressure gauge is composed of German Bourdon tube components and cores, etc. It features a special isolation diaphragm mechanical structure principle, is filled with environmentally friendly media, is easy to install, and provides intuitive pressure display.
It is applicable to fields such as petroleum, chemical engineering, shipping, power, pharmaceutical equipment, food machinery, and heavy machinery.
二、应用领域Application field
GRAEFF（格拉夫）压力测量系列产品凭借其卓越的性能、丰富的产品类型和灵活的定制能力，已广泛应用于众多工业领域，为各行各业的压力测量与控制提供了可靠、精准、高效的解决方案，具体应用领域包括：
GRAEFF's pressure measurement series products, with their outstanding performance, rich product types and flexible customization capabilities, have been widely applied in numerous industrial fields, providing reliable, accurate and efficient solutions for pressure measurement and control in various industries. The specific application areas include:
石油化工 & 能源行业Petrochemical & Energy industry
在石油化工领域，压力测量设备需要面对高温、高压、腐蚀性介质等多重挑战。GP系列压力传感器中的本质安全型设计（如 GPN 应变式系列压力变送器）可安全应用于钻井平台、炼油厂等防爆要求严格的场所，实时监测管道压力变化，保障生产安全；全不锈钢防腐结构的产品（如 GPC 陶瓷压阻系列压力变送器）能够长期稳定测量强酸、强碱等腐蚀性介质，广泛应用于化工反应釜、油气输送管道的压力监控。
In the petrochemical industry, pressure measurement equipment needs to confront multiple challenges such as high temperature, high pressure, and corrosive media. The intrinsically safe design of the GP series pressure sensors (such as the GPN strain gauge series pressure transmitters) can be safely applied in places with strict explosion-proof requirements, such as drilling platforms and oil refineries, to monitor pipeline pressure changes in real time and ensure production safety. Products with all-stainless steel anti-corrosion structure (such as GPC ceramic piezoresistive series pressure transmitters) can stably measure corrosive media such as strong acids and strong alkalis for a long time, and are widely used in pressure monitoring of chemical reaction vessels and oil and gas transmission pipelines.
工程机械 & 重型工业Construction machinery & heavy industry
盾构机、矿山机械等重型设备在作业过程中面临振动、冲击、砂石磨损等严苛工况。GP系列压力传感器中针对硬砂、泥浆等恶劣环境设计的产品（如 GPT 系列盾构工程压力变送器），采用特殊隔膜处理和精密补偿技术，能抵抗砂石磨损，确保长期稳定运行；抗振动冲击的隔膜抗震产品（如 GPG 系列隔膜抗震压力表）则可有效缓解机械振动对测量的影响，适用于工程车辆、重型机床等振动频繁的工业场景。
Heavy equipment such as shield machines and mining machinery are exposed to harsh working conditions like vibration, shock and sand and gravel wear during operation. The products in the GP series pressure sensors designed for harsh environments such as hard sand and mud (such as the GPT series shield engineering pressure transmitter) adopt special diaphragm treatment and precise compensation technology, which can resist sand and gravel wear and ensure long-term stable operation. Diaphragm anti-vibration and shock-resistant products (such as the GPG series diaphragm anti-vibration pressure gauge) can effectively alleviate the influence of mechanical vibration on measurement and are suitable for industrial scenarios with frequent vibration, such as engineering vehicles and heavy machine tools.
空调制冷 & HVAC 系统Air conditioning refrigeration & HVAC systems
在暖通空调（HVAC）和制冷系统中，冷媒压力的精确控制直接影响系统能效和设备寿命。GP系列压力传感器中具备耐腐蚀、快速响应特性的产品（如 GPC 陶瓷压阻系列压力变送器）可精准监测制冷剂压力变化，帮助优化系统运行效率，且紧凑的设计便于安装于空间受限的制冷设备中，为商用空调、冷链物流等应用提供可靠保障。
In HVAC and refrigeration systems, the precise control of refrigerant pressure directly affects system energy efficiency and equipment lifespan. Among the GP series pressure sensors, the products with corrosion resistance and fast response characteristics (such as the GPC ceramic piezoresistive series pressure transmitter) can accurately monitor the pressure changes of refrigerants, helping to optimize the operational efficiency of the system. Moreover, their compact design makes them easy to install in refrigeration equipment with limited space, providing reliable support for applications such as commercial air conditioning and cold chain logistics.
医疗制药 & 食品加工Medical pharmaceuticals & food processing
在医疗设备和食品加工行业，对压力传感器的卫生等级和测量精度要求极高。GP系列压力传感器中适配食品、医药领域的产品（如 GPS 扩散硅系列压力变送器）采用符合卫生标准的材质，可安全应用于制药设备的流体压力控制、食品加工过程中的压力监测等场景，凭借高灵敏度和快速响应特性，确保生产过程的稳定性和产品质量的一致性。
In the medical equipment and food processing industries, the hygiene grade and measurement accuracy requirements for pressure sensors are extremely high. The GP series pressure sensors suitable for the food and pharmaceutical fields (such as GPS diffused silicon series pressure transmitters) are made of materials that meet hygiene standards and can be safely applied in scenarios such as fluid pressure control in pharmaceutical equipment and pressure monitoring in food processing. With high sensitivity and rapid response characteristics, they ensure the stability of the production process and the consistency of product quality.
航空航天领域Aerospace field
航空航天领域对压力测量的精度、可靠性和环境适应性有着极高要求。GP 系列中的高精度产品可满足航空器液压系统、燃料管路的高压监测需求；具备抗振动、耐极端温度特性的型号能在航空器飞行等复杂工况下稳定工作，为航空航天设备的安全运行提供关键数据支持。
The aerospace field has extremely high requirements for the accuracy, reliability and environmental adaptability of pressure measurement. The high-precision products in the GP series can meet the high-pressure monitoring requirements of aircraft hydraulic systems and fuel pipelines. Models with anti-vibration and extreme temperature resistance characteristics can operate stably under complex working conditions such as aircraft flight, providing key data support for the safe operation of aerospace equipment.
汽车制造 & 轨道交通Automobile manufacturing & Rail transit
汽车生产线的液压设备、制动系统以及轨道交通的列车制动管路，对压力测量的动态响应速度和稳定性要求严格。GP系列压力传感器可实时捕捉压力瞬间变化，保障生产设备和行车过程中的压力控制精度；全焊接密封结构的型号能适应汽车制造车间的油污、粉尘环境，长期稳定运行于焊接机器人液压系统、轨道车辆制动管路等关键部位。
在新能源汽车充电桩液冷系统中，压力监测是保障充电安全与效率的关键。液冷充电桩在高功率快充过程中，冷却液需在密闭管路中保持稳定压力循环以实现高效散热。GP系列压力传感器中具备耐腐蚀、高精度特性的产品可精准监测冷却液压力变化，实时反馈系统是否存在泄漏、堵塞等异常情况；其宽温度补偿能力能适应充电桩在户外高温或低温环境下的压力测量需求，确保液冷系统持续稳定运行，为新能源汽车快速充电保驾护航。
The hydraulic equipment and braking systems in automotive production lines, as well as the braking pipelines of trains in rail transit, have strict requirements for the dynamic response speed and stability of pressure measurement. The GP series pressure sensors can capture the instantaneous changes in pressure in real time, ensuring the accuracy of pressure control during production equipment and driving processes. Models with fully welded and sealed structures (such as the GPF series sputtering film pressure transmitter) can adapt to the oil and dust environment in automotive manufacturing workshops and operate stably for a long time in key parts such as the hydraulic system of welding robots and the brake lines of rail vehicles.
In the liquid cooling system of new energy vehicle charging piles, pressure monitoring is the key to ensuring charging safety and efficiency. During the high-power fast charging process of liquid-cooled charging piles, the coolant needs to maintain a stable pressure circulation in a closed pipeline to achieve efficient heat dissipation. Among the GP series pressure sensors, the products with corrosion resistance and high precision can accurately monitor the changes in coolant pressure and provide real-time feedback on whether there are any abnormal conditions such as leakage or blockage in the system. Its wide temperature compensation capability can meet the pressure measurement requirements of charging piles in outdoor high or low temperature environments, ensuring the continuous and stable operation of the liquid cooling system and safeguarding the rapid charging of new energy vehicles.
水利环保与液位监测Water conservancy environmental protection and liquid level monitoring
水利工程、城市供水系统中，液位与压力的实时监控是保障供水稳定和防洪安全的核心。GPL 系列投入式液位压力变送器凭借 IP65 高防护等级和优异的温度补偿性能，可直接潜入水池、水箱等场景，精准测量液位高度并转换为压力信号，助力智慧水务系统实现远程监控与自动化调节；在水利大坝、灌溉系统中，其抗干扰设计能有效抵御环境电磁干扰，确保数据传输的准确性。
同时，在环保行业的污水处理、废气处理设备中，压力传感器需要耐受高浓度污染物的腐蚀。GPC 陶瓷压阻系列压力变送器等具备耐腐蚀特性的产品，可直接测量污水管道、废气处理塔内的压力变化，实时反馈设备运行状态；其精准的测量数据还能为环保系统的自动化调节提供依据，助力企业实现污染物达标排放与节能降耗，形成从水利监测到环保治理的全链条压力测量解决方案。
In water conservancy projects and urban water supply systems, real-time monitoring of liquid level and pressure is the core for ensuring stable water supply and flood control safety. The GPL series submersible liquid level and pressure transmitter, with its IP65 high protection level and excellent temperature compensation performance, can be directly submerged in water tanks, water tanks and other scenarios to accurately measure the liquid level height and convert it into a pressure signal, helping the smart water management system achieve remote monitoring and automatic regulation. In water conservancy DAMS and irrigation systems, its anti-interference design can effectively resist environmental electromagnetic interference and ensure the accuracy of data transmission.
Meanwhile, in the sewage treatment and waste gas treatment equipment of the environmental protection industry, pressure sensors need to withstand the corrosion of high-concentration pollutants. The GPC ceramic piezoresistive series pressure transmitters and other corrosion-resistant products can directly measure the pressure changes in sewage pipes and waste gas treatment towers, and provide real-time feedback on the operating status of the equipment. Its precise measurement data can also provide a basis for the automatic adjustment of the environmental protection system, helping enterprises achieve the standard discharge of pollutants and energy conservation and consumption reduction, and forming a full-chain pressure measurement solution from water conservancy monitoring to environmental protection governance.
三、总结Summary
GRAEFF（格拉夫）GP系列压力传感器/变送器以高精度、强适应性、定制化服务为核心优势，覆盖从工业自动化到特殊环境的全领域需求。无论是严苛的石化防爆场景，还是精密的医疗食品行业，GRAEFF（格拉夫）都能提供可靠的压力测量方案，助力企业提升生产效率与安全性。
The GRAEFF GP series pressure sensors/transmitters, with their core advantages of high precision, strong adaptability and customized services, cover the full range of demands from industrial automation to special environments. Whether it is the demanding petrochemical explosion-proof scenarios or the precise medical and food industries, GRAEFF can provide reliable pressure measurement solutions to help enterprises enhance production efficiency and safety.
