Pressure gauge Manufacturers

Jiangsu Zhaolong Electrics Co., Ltd. supplies pressure gauges for plants and equipment that need a clear, mechanical indication of air, gas, steam or fluid pressure. We are a China-based manufacturing enterprise in Dainan Town, Xinghua City, Jiangsu, with a 33,300-square-meter production base and about 100 skilled employees. Since 2005, we have combined sensor and control instrument manufacturing experience with a strong technical development team and patent results. Our Pressure gauge manufacturer line is built around durable dial instruments that give operators a reliable on-site reading while complementing our electronic pressure, temperature and control products.

Pressure Gauge Range and Application Fit

Pressure gauges in our range are mechanical instruments with a dial display for continuous observation of pressure changes. They are used in pipelines, hydraulic systems, compressors, pumps, storage tanks and general machine equipment. We supply standard configurations and also develop special specifications based on customer drawings and samples, which is our normal working method across the instrument line.

For automated loops, the same process connection can often be handled more effectively with a pressure transmitter. When the application requires local indication only, a pressure gauge is the more cost-effective and service-friendly solution; when the signal must reach a PLC or DCS, we provide the corresponding transmitter or combine both through a manifold.

Pressure Gauge Types We Configure

The selection of sensing element depends on the media and the working pressure range. The table below summarizes the configurations we commonly offer.

Application Fit and Process Conditions

Selection starts with the medium and the normal working point. Clean gases and liquids with moderate pressures and no pulsation normally suit a standard Bourdon tube gauge. A diaphragm gauge is often better when the process medium is viscous, contains solids or tends to clog a tube. For low-pressure air and gas, capsule elements provide better resolution.

• Pipeline pressure monitoring: confirm operating range and maximum overpressure so the gauge can be sized around the expected working point.
• Hydraulic systems: choose a glycerin-filled case when machine vibration and pressure pulses would otherwise wear the movement.
• Compressors and pumps: use a snubber or syphon when pressure pulsations or high media temperature reach the sensing element.
• Corrosive environments: specify wetted materials, housing material and ingress protection according to the atmosphere and washdown requirements.

Critical Specifications We Confirm Before Quoting

Reliable indication starts with matching the gauge to the process. We use the following information to define the measuring element, case, connection and scale:

• Process medium and temperature at the point of installation, including any risk of crystallization or solids.
• Normal working pressure, maximum operating pressure and surge pressure, so the gauge can be sized with a safe margin.
• Accuracy class, dial size, scale range and units such as bar, psi, MPa or kg/cm².
• Connection type and size, for example BSP, NPT or flange.
• Mounting style: lower mount, back mount, flush panel mount or direct stem.
• Case and window material as well as liquid filling for vibration and pulsation.
• Wetted parts material: brass, stainless steel or special alloy for corrosive fluids.
• Required certificates, calibration report, inspection documents and packaging.

Selecting a range that is too close to the normal working point shortens gauge life, while an unnecessarily wide range makes small pressure changes hard to read. Our proposal includes the recommended range based on the working point you provide.

Quality Assurance, Calibration and Compliance

Jiangsu Zhaolong Electrics implements quality supervision throughout the production process, with a dedicated production line and testing methods. The company holds GB/T 19001-2016/ISO9001:2015 certification, ISO14001 environmental management system certification and CE certification, and has obtained invention and utility model patents. Our testing laboratory is equipped for precision verification, and we provide calibration services for products that require periodic re-verification.

Every pressure gauge order is handled under the same quality system. We can issue inspection and calibration documentation with the shipment, and the product is covered by a 12-month warranty against non-human damage. Customized instruments can be developed from your drawing or sample and manufactured in our factory.

Information We Use to Configure Your Solution

A standard gauge can be quoted once these points are confirmed. For a special specification, the drawing or sample lets us confirm the mechanical interface and material requirements before production starts.

Installation, Maintenance and Project Support

Mechanical pressure gauges are simple to install, but reliability depends on correct positioning and isolation. We can recommend a syphon for steam service, a snubber for pulsation, a diaphragm seal for corrosive media and a shut-off valve for maintenance access. These auxiliaries are selected together with the gauge so the complete assembly matches the process.

Our service scope includes spare parts supply, calibration and technical support during the warranty period. In addition to the pressure gauge line, we manufacture temperature sensors, bimetallic thermometers, transmitters and control instruments, which allows us to respond to mixed project requirements in one order. Products are exported to more than 30 countries and regions, mainly by sea freight, with air freight available when urgent delivery is required.

Frequently Asked Questions

Do you supply standard pressure gauges or only customized instruments?

We supply both. Standard gauges are configured for the required range, connection, dial size and case style. Customized production is a core part of our business, and we develop special specifications from customer drawings or samples.

What information do you need before quoting a pressure gauge?

We need the process medium, normal working pressure, maximum pressure, fluid temperature, connection type, dial size, accuracy, mounting style and order quantity. The same information defines the measuring element, case and scale.

Can a pressure gauge be used together with a pressure transmitter?

Yes. Many installations combine local dial indication with a 4-20mA signal for the control system. We supply both products, so the pressure gauge and transmitter can be specified as one integrated assembly.

How do you handle calibration and warranty?

We provide calibration services and can issue inspection and calibration documentation with the order. All products carry a 12-month warranty against non-human damage.

Do you support special process connections and wetted materials?

Yes. Special connections, special alloys, higher accuracy classes and customized dials can all be developed as part of the manufacturing process. Provide the drawing, sample or application details and we will confirm the configuration.