Pressure Instruments

What are Pressure Instruments?

Pressure Instruments are essential devices used to measure, monitor, and control pressure in industrial systems. They help ensure safe and efficient operation by providing accurate feedback of pressure changes in liquids, gases, or steam within pipelines or process equipment.

Types of Pressure Instruments

1. Pressure Transmitter

A Pressure Transmitter converts the measured pressure of a fluid into a standard electrical signal (typically 4–20 mA or 0–10 V). It features high accuracy, stability, and corrosion resistance, making it suitable for continuous monitoring in industrial automation systems.
Commonly used in hydraulic, pneumatic, and process control applications.

2. Differential Pressure Transmitter

A Differential Pressure Transmitter (DP Transmitter) measures the pressure difference between two points. It is ideal for monitoring flow, level, and filter clogging in pressurized systems.
It ensures precise control of process variables in oil refineries, power plants, and chemical processing units.

3. Pressure Switch

A Pressure Switch is a control device that automatically opens or closes an electrical contact when a preset pressure level is reached.
It is commonly applied in pumps, compressors, hydraulic systems, and industrial automation equipment for safety interlocking and pressure protection.

Features of Pressure Instruments

High measurement accuracy and long-term stability

Durable housing available in cast aluminum or stainless steel (SS316L) for various industrial environments

Multiple output options: 4–20 mA, 0–10 V, RS485 Modbus，Hart

Available in compact, explosion-proof, and high-temperature versions

Optional local digital display for easy field monitoring

Wide pressure range from vacuum to 1000 bar

Excellent vibration and overload resistance

Applications of Pressure Instruments

ZINACA Pressure Instruments are widely used in:

Oil and gas pipelines and drilling systems

Petrochemical and refinery plants

Water and wastewater treatment facilities

Power generation and boiler monitoring

Pharmaceutical and food processing industries

HVAC and refrigeration systems

Pressure Instrument OEM Service

ZINACA Instruments provides complete OEM & ODM services for pressure instruments.
We offer customization in:

cast aluminum or stainless steel (SS316L, SS304 etc.)

Electrical connections (Hirschmann, M12, cable gland)

Pressure ranges and signal outputs

Branding, logo printing, and packaging

Pressure Instrument Manufacturer

Tianjin ZINACA Intelligent Equipment Co., Ltd. is a leading manufacturer and supplier of pressure instruments in China.
With advanced production lines, calibration equipment, and strict ISO/CNAS/IAF-certified quality systems, we provide reliable pressure transmitters, differential pressure transmitters, and pressure switches for industrial automation worldwide.

If you are looking for a trusted pressure instrument manufacturer, ZINACA Instruments is your professional partner for high-quality and cost-effective solutions.