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Home > Hot Products > CE Certification China Suppliers Factory SS Electric Contact Pressure Gauge – 5 Bar / 75 PSI, Laser Welded for Automated Control Supplier, Factories
CE Certification China Suppliers Factory SS Electric Contact Pressure Gauge – 5 Bar / 75 PSI, Laser Welded for Automated Control Supplier, Factories
CE Certification China Suppliers Factory SS Electric Contact Pressure Gauge – 5 Bar / 75 PSI, Laser Welded for Automated Control Supplier, Factories
CE Certification China Suppliers Factory SS Electric Contact Pressure Gauge – 5 Bar / 75 PSI, Laser Welded for Automated Control Supplier, Factories
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CE Certification China Suppliers Factory SS Electric Contact Pressure Gauge – 5 Bar / 75 PSI, Laser Welded for Automated Control Supplier, Factories
CE Certification China Suppliers Factory SS Electric Contact Pressure Gauge – 5 Bar / 75 PSI, Laser Welded for Automated Control Supplier, Factories
CE Certification China Suppliers Factory SS Electric Contact Pressure Gauge – 5 Bar / 75 PSI, Laser Welded for Automated Control Supplier, Factories

CE Certification China Suppliers Factory SS Electric Contact Pressure Gauge – 5 Bar / 75 PSI, Laser Welded for Automated Control Supplier, Factories

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The all-stainless steel electric contact pressure gauge is an advanced automated instrument designed for precise pressure measurement and control. This innovative device combines the functionality of traditional Bourdon tube pressure gauges with an integrated electric contact system, allowing for intuitive pressure display as well as automatic control and alarm features. As a leading solution provided by suppliers in China, this gauge is ideally suited for enhancing the efficiency and safety of various pressure systems.

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Users can easily set the desired upper and lower limit signal pointers to specific target pressure values using the intuitive knobs on the dial or a specialized tool. When the pressure exceeds the upper limit, the movable contact of the gauge connects with the upper limit stationary contact, generating an overpressure signal. Conversely, when the pressure falls below the lower limit, it connects with the lower limit stationary contact to output an underpressure signal. These critical signals can be interfaced with intermediate relays, contactors, PLCs, and other control systems to manage the operation of equipment such as motors, solenoid valves, and alarm systems, ensuring optimal performance. Produced in our factory, this electric contact pressure gauge exemplifies quality and reliability for industrial applications.

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Product Description

Product Specifications
Case Stainless steel
Size 100mm (4")
Ring (Cover) Stainless steel
Window Glass
Pointer Aluminum Alloy, Black Finished
Connection Stainless steel
Connection Location Lower
Thread 1/2" BSP
Element (Bourdon Tube) Stainless steel
Movement Stainless steel
Dial Plate White Aluminum with Black Graduations
Core Features and Advantages
Precise and Reliable Electrical Contact Control
High-Precision Contact Action: Employing magnetically assisted electrical contacts or a double-contact design reduces the impact of electric arcs, ensuring stable contact switching and preventing malfunctions.
Adjustable Upper and Lower Limit Settings: Users can flexibly adjust the pressure control range via the setting pointer on the dial, enabling automatic alarms or equipment start/stop (such as water pumps and air compressors).
Stable Signal Output: Moderate contact capacity (typically AC 220V/380V, 3A–5A) allows direct driving of small and medium-sized relays or contactors, simplifying the control system.
Safety and Ease of Maintenance
Electric Shock Protection: The all-steel casing is well-grounded, reducing the risk of leakage and ensuring operational safety.
Clear Display and Operation: The large dial design makes pressure values and contact settings clearly visible, eliminating the need to open the casing to adjust settings.
Low Maintenance Requirements: Robust construction and long contact life (typically exceeding 100,000 cycles) reduce replacement frequency.
Typical Application Fields
Industrial Process Control Used in hydraulic systems, pneumatic systems, boilers, compressors, pumps, and other equipment to automatically maintain pressure within safe ranges.
Safety Protection & Alarms In pressure vessels, pipelines, and HVAC systems, triggering audible and visual alarms or emergency shutdowns when pressure is abnormal (too high or too low).
Fluid Transport Systems In water treatment, oil, and chemical pipelines, controlling the automatic start and stop of pumps to prevent pipeline ruptures or cavitation.
Refrigeration & Air Conditioning Monitoring refrigerant pressure to achieve automatic system regulation and protection.
Frequently Asked Questions
What materials are used in the construction of this pressure gauge?
The case, ring (cover), connection, Bourdon tube (sensing element), and movement are all made of stainless steel. The pointer is aluminum alloy with a black finish, the window is glass, and the dial plate is white aluminum with black graduations — ensuring durability and corrosion resistance.
What is the thread connection specification for this gauge?
The gauge uses a 1/2" BSP (British Standard Pipe) thread with a lower connection location, making it compatible with a wide range of standard industrial pipelines and fittings.
Can I adjust the upper and lower pressure limit settings without opening the casing?
Yes. The large dial design allows users to clearly view and adjust the upper and lower pressure limit settings via the setting pointer directly on the dial face — no need to open the casing at any time.
What voltage and current ratings do the electrical contacts support?
The electrical contacts typically support AC 220V/380V with a current rating of 3A–5A. This allows them to directly drive small and medium-sized relays or contactors, simplifying control circuit design.
How long is the expected service life of the electrical contacts?
The contacts are designed for robust, long-term use with a typical service life exceeding 100,000 switching cycles. The magnetically assisted or double-contact design also minimizes arc damage, further extending operational life.
Is this pressure gauge suitable for use in refrigeration and HVAC systems?
Yes. This gauge is well-suited for refrigeration and air conditioning applications. It can monitor refrigerant pressure and trigger automatic system regulation or protection responses when pressure deviates from the set range.

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