Your Professional Diaphragm Pressure Gauge Supplier
Suzhou Power Meter Co., Ltd. is a professional supplier of pressure and temperature instrument devices. We specialize in the design and manufacturing of various types of pressure gauges and temperature gauges, customized according to customer specifications.
Why choose us
Our Certificates
Our pressure gauges and temperature gauges are certified with ISO9001, CE, and KS standards.
Sales Market
Our products are sold worldwide. Approximately 40% are exported to Europe, 30% to Southeast Asia, 15% to North America, and 5% each to South America, Africa, and the Middle East.
Our Service
We have a professional technical team that provides solutions for pressure and temperature measurement. We recommend suitable pressure and temperature instruments based on your needs. Our sales team will offer you competitive prices along with detailed product specifications before cooperation.
Diaphragm Pressure Gauge
The diaphragm pressure gauge, also known as the Shaeffer gauge, is an industrial instrument used to measure the pressure of a fluid in a system. Its operation is based on the principle of deformation of an elastic diaphragm, which is solid and highly sensitive, in response to the pressure exerted by the fluid itself.
Technical Parameters
|
Product name |
4inch-100mm Sanitary type diaphragm pressure gauge |
|
Model number |
YTF-100A |
|
Diameter size |
2.5"(63mm); 3.5"(75mm); 4"(100mm); 6"(150mm); |
|
Case/cover |
Stainless steel case |
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Window |
General glass |
|
Connection |
Stainless steel Bottom (back/back with clamp /bottom etc.) |
|
Thread |
G/PT/NPT 1/8;1/4;1/2;M14x1.5;M20x1.5 ,ect |
|
Bourdon tube |
Stainless steel |
|
Movement |
Stainlesss steel |
|
Dial plate |
Aluminum |
|
Pressure range |
-0.1Mpa~25Mpa |
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Accuracy |
2.5%;1.6%'1.0% |
|
Liquid filling |
Yes |
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Liquid |
Dry;Glycerin;Silicon oil |
Key Features
Range
Diaphragm pressure gauges are available for measuring a wide range of pressures, from very low to very high.
Accuracy
They offer good accuracy and can be calibrated for specific applications.
Applications
Commonly used in industries such as oil and gas, water treatment, and HVAC systems for monitoring pressure in pipelines, tanks, and other equipment.
Types
They can be designed for different pressure types, including absolute, gauge, and differential pressure measurements.
The advantages of a diaphragm pressure gauge
1. Another advantage of a diaphragm pressure gauge is that it is very easy to use. It does not require a power supply and can be easily connected to the system to be measured. It is also very lightweight and portable, making it easy to use in various locations. This makes it a very versatile tool.
2. Another advantage of a diaphragm pressure gauge is that it is very accurate. It can measure the pressure in a system very precisely and is generally very reliable. It is also very sensitive and can measure very small pressure changes. This makes it a very useful tool in applications where high accuracy is required.
3. A diaphragm pressure gauge can also be used in applications where a high measurement frequency is required. It can provide measurements very quickly, making it ideal for applications where rapid measurements are necessary. It can also be used in applications where a high measurement resolution is required. It can measure very small pressure changes, making it ideal for applications where high measurement resolution is necessary.
4. Another advantage of a diaphragm pressure gauge is that it is generally very cost-effective. It is typically much cheaper than other types of pressure measuring devices, such as electronic pressure sensors. This makes it a very attractive tool for applications where a cost-effective measuring device is needed.
Diaphragm pressure gauge working principle
The following list describes the working components and how a diaphragm pressure gauge operates to measure a system’s pressure:
Pressure inlet: System media enters the pressure gauge at the pressure inlet. The inlet has a threaded or flanged process connection.
Diaphragm: The media presses against and proportionally deflects the diaphragm . The diaphragm is a thin, circular, flexible, metal disc. It is typically made of stainless steel for corrosion and high-temperature resistance. The disc can be corrugated or smooth. Smooth discs are only suitable for small deflections and therefore are unlikely to operate well in industrial applications.
Housing: The housing securing the diaphragm has upper and lower components . The lower housing connects to the pressure inlet and the upper housing supports the diaphragm in the case of high pressure. The two components can be flanged or welded together. Welded connections are preferable for sanitary applications.
Pressure element: The pressure element reacts to the diaphragm’s deflection. Typically, the pressure element will be a rack and pinion setup or a bourdon tube setup. For the latter, the pressure element is filled with fluid to transfer pressure changes throughout the element. For a digital pressure gauge, a piezoresistive component is typically used.
Pointer: Finally, the movement of the pressure element proportionally translates to the pointer's movement so a user can read the system pressure from the pressure gauge. For digital pressure gauges, the pressure reading is displayed. Regularly calibrate the pressure gauge to ensure proper operation.
Selection criteria
Material: Use chemically compatible materials for the gauge’s parts that contact the media. Stainless steel is preferred due to its corrosion and high temperature resistance. Whether considering stainless steel or a different material (e.g., brass), see our chemical compatibility chart for more detail on material compatibility.
Pressure ranges: A diaphragm gauge must accurately display the system's maximum and minimum operating pressures. The system's maximum working pressure should not exceed 75% of the gauge's full-scale range and 65% of the pulsating range.
Temperature range: Select a gauge with material that can withstand the working temperature. In general, diaphragm pressure gauges can operate well between -20 °C and 100 °C (-4 °F and 212 °F). Always check a gauge’s operating temperature range before using it.
Diaphragm size: System pressure and diaphragm diameter have an inverse relationship. Low pressures require larger diameter diaphragms, so there is more surface area for the system media to press against.
Housing seal: Whether the housing around the diaphragm is two flanges or a welded seal depends on the application. Sanitary applications that require further protection against leaking typically use a welded seal.
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FAQ
We're professional diaphragm pressure gauge manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to wholesale discount diaphragm pressure gauge made in China here from our factory. For price consultation, contact us.
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