Compare the Two Main Types of Solid-Center Metal Diaphragms

Industry news

Aug 18,2025

By:Shinging

The Two Primary Varieties of Solid Center Metal Diaphragms and Their Distinctions

Metal diaphragms are uniquely designed parts that serve multiple essential functions in various sectors. Typically just thin, round disks, diaphragms assist in controlling pressure levels within intricate machinery systems.

What makes these plates essential to numerous processes is their capacity to alter their shapes as required. Diaphragms experience elastic deformation when exposed to axial loads or pressure, enabling them to fulfill a variety of functions.

Common functions of solid metal diaphragms encompass:

  • Controlling pressure

Transforming motion into quantifiable interaction with devices

  • Establishing a tangible separation between contending elements related to gas and liquid


  • Functioning as a barrier while liquids are pumped


  • Acting as reliable failure points to safeguard equipment from the danger of excessive pressure

  • Pedaling for countless rotations

- Ensuring dependable functionality in harsh environments and extreme heat conditions

Metal diaphragms are found in two primary types: high-sensitivity low-pressure (HSLP) and low-sensitivity high-pressure (LSHP) diaphragms. Recognizing the distinctions between the two is essential for identifying the most suitable option for your needs.

Diaphragms with Low Pressure and High Sensitivity

HSLP diaphragms are utilized in applications where the diaphragm needs to shift considerably without needing a large amount of pressure. These devices primarily assist with isolating pressure sensors, particularly in the food processing and pharmaceutical sectors.

Both industries utilize HSLP diaphragms to safeguard fluids from contamination via pressure sensors. These sensors engage due to excessive pressure in the system, enabling equipment to automatically direct fluids once the pressure hits a specific level. In food processing and pharmaceutical settings, HSLP sensors enable fluids to progress to the next processing stage only once they attain the required volumes, assisting operators in accurately managing the mixing and processing of different materials

Numerous other sectors needing ultra-pure process fluids also utilize pressure sensors, thus depending on HSLP diaphragms. Additional typical uses for these systems consist of:

  • Instruments for aerospace such as altimeters


  • Oxygen system aneroids and systems for automatic deployment

High-Pressure Diaphragms with Low Sensitivity

LSHP diaphragms are ideal for applications needing the diaphragm to stay secure even under elevated pressure. While they are not seen as often as HSLP diaphragms, they are equally vital in managing pressure in fluid-based systems.

LSHP diaphragms are particularly effective in transforming motion into digital signals that can be processed by computers. They can be adjusted to open at specific pressures, enabling operators to obtain precise measurements during their operation.

They are frequently used as gas-liquid barriers and failure points because they serve as a final defense against overpressure and equipment malfunction. Their capability to excel in harsh conditions also makes them advantageous for medical device makers, who utilize LSHP diaphragms to control pressure-driven machinery.

Low-Pressure High-Value Sourcing From Shinging Technologies

At Shinging Technologies, we create an extensive variety of HSLP and LSHP diaphragms for numerous uses. We create adaptable diaphragms using materials such as:

  • Inoxidable acero

Hastelloy

- Haynes

  • Inconel


  • Monel

- Titanium

All products are designed to meet Shinging Standard Tolerances.

To discover more about what Shinging Technologies has to offer, reach out to us today.


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