Pressure transmitter Manufacturers

As a Pressure transmitter manufacturer at Jiangsu Zhaolong Electrics Co., Ltd., we build pressure transmitters for industrial loops that need a converted electrical signal rather than only local indication. The transmitter turns pressure from pipelines, tanks, hydraulic systems and process equipment into a proportional output such as 4-20 mA or 1-5 V for PLCs, DCS panels and data recorders. Our factory in Jiangsu, China, applies the same measurement engineering, quality supervision and special-specification capability used across our temperature sensor and control instrument programs.

Pressure transmitters are part of a complete process instrumentation range. The same project may also need a temperature transmitter for thermal loops, a Pressure gauge for local indication, or a Temperature sensor for the process temperature signal. We treat the transmitter as one component of the measurement chain, not as a stand-alone accessory.

What We Supply

Our pressure transmitter offering is configured around the process, not a fixed stock list. For every inquiry we establish the working pressure range, process connection, output signal, electrical supply and environmental conditions before proposing the instrument. Standard output signals such as 4-20 mA and 1-5 V are supported, along with the wiring interfaces needed for monitoring systems and controllers.

• Continuous pressure monitoring on pipelines, pressure vessels and process machinery
• Hydraulic and pneumatic system supervision with remote signal transmission
• Interface to PLC, DCS, SCADA, control panels and data acquisition equipment
• Custom configurations for special pressure ranges, connections and electrical interfaces

Application Fit and Process Integration

In pipeline and process monitoring, a pressure transmitter provides continuous data so operators can observe changes and controllers can adjust valves or pumps. In hydraulic equipment, it confirms that the system is operating within its intended range and gives maintenance teams useful trend information. In chemical and energy facilities, the electrical signal can be recorded, compared against limits and used in automatic control loops.

A pressure gauge remains useful for local observation; the transmitter adds the remote signal. We often supply both for one measuring point, with the transmitter output wired to the control room and the gauge left on the pipe for on-site checks.

Critical Specifications and Project Data

A useful pressure transmitter proposal is based on the working point, the medium and the control interface. The table below is the same project-input matrix we use to select and configure the instrument.

Configuration, Controls and Automation Integration

We configure the transmitter around the existing control architecture. A 4-20 mA current loop is common because it transmits over distance and can power the transmitter from the loop. Voltage output such as 1-5 V is used where the input card expects voltage. We confirm the supply voltage, load resistance and wiring method before delivery.

• Output signal selection and loop power requirements
• Electrical connection and cable entry options
• Process connection matching to pipework or manifold
• Mounting position, orientation and mechanical support
• Housing protection for the site environment

Material and Environmental Considerations

Pressure transmitter selection depends on medium compatibility. For clean air, water and non-corrosive gases, standard wetted materials are usually sufficient. For chemical media, steam or high-temperature process fluids, the process connection and sealing arrangement must be reviewed. Corrosive media may require a more resistant wetted path, and high ambient temperature around the housing can affect the electronics.

If the measuring point is in a hazardous area, confirm the zone classification so the instrument and documentation can be selected accordingly. Our factory obtained national explosion-proof production qualification for explosion-proof thermocouples and RTDs, which supports our work on instrumented plant loops.

Quality Assurance and Acceptance

The company operates under a quality management system certified to GB/T 19001-2016/ISO9001:2015, with CE marking for applicable products and ISO14001 environmental management certification. Production uses updated lines and testing methods, and quality is supervised through the process. Each product is checked before leaving the factory, and factory test data can be coordinated with the order.

For pressure transmitters, acceptance is based on the confirmed set range, output signal, process connection and electrical interface. We prepare the instrument so that installation and loop commissioning can proceed without recalibration under normal conditions.

Customization and Engineering Support

Zhaolong Electrics is equipped to undertake normal and special-specification product business. Our engineering team can develop instruments against drawings, samples or written performance requirements. Common customization points are the pressure range, output signal, process connection, cable length and calibration point.

In addition to custom development, our 33,300 m² production base and updated lines support regular supply contracts and single-instrument project orders. We can also support the wider control system using our experience with automatic control boxes, temperature control rooms and remote monitoring systems.

Information We Use to Configure Your Solution

Send as much of the following as possible with the inquiry:

• Working pressure range, maximum over-range and static pressure
• Process medium, density or viscosity, and media temperature
• Required output signal and available power supply
• Process connection and electrical connection preferences
• Ambient temperature, humidity, vibration and hazardous-area classification
• Existing PLC/DCS input type and cable length
• Quantity, packaging, destination port and required delivery date

With these details, we can prepare a configuration and quotation that matches the actual measuring point.

Installation, Maintenance and Service

During installation, the transmitter should be mounted in a position that avoids mechanical stress on the process connection and keeps the housing within its temperature limits. For hot or corrosive media, thermal isolation and material selection should be checked against the operating conditions. We provide installation instructions and can answer commissioning questions for the loops we supply.

Our after-sales support covers warranty service, replacement parts and calibration guidance. When you contact us, quote the model or order number so that we can trace the configuration and offer the correct spare part.

Frequently Asked Questions