All SS Diaphragm Pressure Gauge – Precision for Low-Pressure Process Applications

Monitoring low-pressure media in demanding industrial environments requires a gauge that is not only accurate, but also robust, corrosion-resistant, and versatile in configuration. The All SS Diaphragm Pressure Gauge by AIMS Control delivers on all these requirements — combining sensitive diaphragm technology with a rugged all stainless steel measuring system, perfect for harsh or corrosive environments.

This pressure gauge is available in DN100 and DN150 dial sizes and supports threaded or flanged process connections, making it suitable for a wide range of industrial installations. It is engineered to measure very low pressures, starting as low as 6 mbar, and up to 25 bar, depending on the model and configuration. The socket-case direct welded design ensures mechanical strength, leak resistance, and extended service life, even under continuous use.

Designed for Low-Pressure and Corrosive Media

Unlike Bourdon tube gauges, which are generally used for medium and high-pressure applications, diaphragm pressure gauges are specifically developed for low-pressure media and gaseous or viscous substances. The diaphragm element flexes under pressure, allowing for accurate and responsive measurement at low pressure levels, even in the presence of sediment-laden or crystallizing fluids.

The All SS construction ensures the gauge is compatible with aggressive gases or liquids, including chemical vapors, acidic media, and process gases often found in industries like chemical processing, water treatment, and pharmaceuticals. The use of stainless steel for both the diaphragm and wetted parts makes this gauge suitable for hygienic and corrosive environments.

Robust Build with Socket-Case Direct Welding

To ensure maximum durability and operational safety, the diaphragm gauge features a socket-case direct welded assembly, eliminating the need for seals or joints that can become weak points under pressure or corrosion. This construction method enhances mechanical strength and reduces the risk of leaks or process contamination.

Combined with an IP54 ingress protection rating, this design makes the gauge well-suited for sheltered outdoor or indoor industrial use, where exposure to moisture and particulates is moderate.

Pressure Ranges and Versatile Mounting Options

The gauge supports pressure ranges tailored to sensitive applications:

• 6…40 mbar – for ultra-low pressure differentials in cleanrooms or gas monitoring
• 60…600 mbar – ideal for HVAC, process filtration, and air handling systems
• -1…0…25 bar – suitable for vacuum and low-pressure positive applications in industrial systems

The unit is available with standard ½” NPT (M) and ½” BSP (M) threaded connections and can also be provided with flanged connections upon request. This ensures compatibility with various pipeline and equipment types, making installation and retrofitting straightforward.

Dry Execution for Clean Media and Stable Operation

This dry-type diaphragm pressure gauge is ideal for applications where media is clean, dry, or gas-based — eliminating the need for glycerin or silicone-filled designs. The dry execution ensures clear visibility and minimal maintenance in applications without pulsation or vibration, commonly found in controlled process environments.

Applications Across Sensitive Process Industries

The All SS Diaphragm Pressure Gauge is a preferred choice in industries where pressure must be measured precisely and safely, especially in corrosive, viscous, or low-pressure conditions:

• Chemical and Petrochemical Plants: Suitable for aggressive and non-crystallizing fluids
• Pharmaceutical and Biotech: For clean process applications requiring contamination-free components
• Water Treatment Facilities: Monitoring filter status and pressure drops in piping systems
• HVAC and Environmental Systems: Measuring airflow and gas distribution at low pressures
• Food and Beverage: For sanitary low-pressure monitoring with optional diaphragm seals

Backed by AIMS Control Expertise

As one of the established pressure gauge manufacturers in India, AIMS Control brings decades of experience to pressure instrumentation. Our All SS Diaphragm Pressure Gauges are built to perform under demanding conditions, combining engineering precision with industrial toughness.

Every unit is tested for accuracy, pressure response, and build integrity before dispatch — ensuring you receive a gauge that’s ready for the field and dependable for years.

Get a Quote Today

Upgrade your low-pressure monitoring systems with AIMS Control. Contact us today to get a quote for the All SS Diaphragm Pressure Gauge, and our team will help you choose the best configuration for your application.