CE Certification Explosion-Proof Electric Contact Pressure Gauge - 0.6 MPa, Stainless Steel Design - China Suppliers & Factory Manufacturers, Factories

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Introducing our explosion-proof stainless steel electric contact pressure gauge, a cutting-edge instrument designed for pressure measurement, indication, alarm, and control in hazardous environments like flammable and explosive settings. Manufactured in China, this product combines the corrosion resistance of stainless steel with the advanced switching control capabilities of electric contact devices, all housed within a robust explosion-proof enclosure. Our gauge guarantees safe and reliable operation in the most critical conditions.

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The explosion-proof design meets stringent industry standards (including Ex d IIB T6 Gb, Ex de IIB T6 Gb, and others) and features a composite explosion-proof structure that effectively isolates potential electrical sparks or high temperatures from the surrounding explosive gas environment, preventing the risk of explosions.

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As one of the leading suppliers and factories of this specialized equipment, we ensure that our pressure gauge comes with an IP65 or higher protection rating, making it dustproof and waterproof, and perfectly suited for both outdoor and humid applications.

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Product Description

Product Specifications
Case Aluminum / Stainless Steel
Size 100mm (4")
Ring (Cover) Aluminum
Window Glass
Pointer Aluminum Alloy, Black Finished
Connection Stainless Steel
Connection Location Lower, Center Back, Lower Back
Thread 1/8", 1/4", 3/8", 1/2"; PT (BSPT, ZG), BSP (G, PF), NPT etc.
Element (Bourdon Tube) Stainless Steel
Movement Stainless Steel
Dial Plate White Aluminum with Black Graduations
Core Features and Advantages
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High Explosion-Proof Safety Level

The explosion-proof markings cover Ex d ⅡBT6, Ex d ⅡCT4, Ex ia ⅡCT6, etc., and are applicable to Zone 1 and Zone 2 explosive gas environments, as well as Class IIB and IIC gas groups and T1~T6 temperature groups, meeting the safety standards of high-risk industries such as petroleum and gas.

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All Stainless Steel Corrosion Resistant

From the outer casing to the pressure measuring element, everything is made of stainless steel, which can withstand corrosive environments such as weak acids, weak alkalis, and salt spray. It is also waterproof and dustproof, making it suitable for harsh working conditions such as coastal areas and chemical workshops.

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Precise and Reliable Measurement & Control

The accuracy class can reach ±1.0% FS to ±1.6% FS, and the measurement range covers vacuum ~0.1MPa to 0~100MPa. The silver alloy contacts have strong anti-ablation ability and sensitive on/off response, and can be directly linked to relays, PLCs, solenoid valves and other equipment to realize automatic pressure start/stop and alarm interlock.

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Highly Adaptable to Installation

Supports multiple installation methods such as radial, axial, and axial with edge, and the interface thread covers specifications such as NPT, BSP, and ZG. Some models can be customized with diaphragm sealing structure to extend to measurement scenarios of viscous and particulate media.

Typical Application Fields
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Oil & Petrochemical Industry

Pressure monitoring and interlocking control of crude oil pipelines, oil and gas storage tanks, and refining units.

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Chemical Industry

Pressure measurement of acid and alkali solutions and solvent media, adapted for automatic control of reaction vessels and pipelines.

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Metallurgical & Gas Industry

Pressure monitoring of blast furnace gas pipelines and natural gas transmission systems to prevent overpressure leaks.

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Pharmaceutical & Food Industry

Pressure control of sterile media under sanitary conditions (optional sanitary connectors).

Frequently Asked Questions (FAQ)
Q What explosion-proof certifications does this pressure gauge support?
This pressure gauge supports multiple explosion-proof markings including Ex d ⅡBT6, Ex d ⅡCT4, and Ex ia ⅡCT6. It is certified for use in Zone 1 and Zone 2 explosive gas environments, covering gas groups IIB and IIC as well as temperature groups T1 through T6, making it fully compliant with safety standards in petroleum, gas, and other high-risk industries.
Q What is the measurement range and accuracy of this gauge?
The measurement range spans from vacuum (~0.1MPa) up to 0~100MPa, covering a wide variety of industrial pressure requirements. The accuracy class reaches ±1.0% FS to ±1.6% FS, ensuring precise and reliable readings for both monitoring and automatic control applications.
Q Is this pressure gauge suitable for corrosive or harsh environments?
Yes. The entire gauge — from the outer casing to the Bourdon tube and movement — is constructed from stainless steel. This provides excellent resistance to weak acids, weak alkalis, salt spray, moisture, and dust, making it ideal for chemical workshops, coastal installations, and other demanding environments where standard black iron casing instruments would fail prematurely.
Q What thread types and connection locations are available?
The gauge supports a wide range of thread standards including NPT, BSP (G/PF), PT (BSPT/ZG), in sizes 1/8", 1/4", 3/8", and 1/2". Connection locations include Lower, Center Back, and Lower Back, offering flexible installation options to suit different piping configurations.
Q Can this gauge be integrated with automated control systems?
Absolutely. The silver alloy contacts feature strong anti-ablation capability and fast on/off response, enabling direct integration with relays, PLCs, solenoid valves, and other automation equipment. This allows for automatic pressure-based start/stop control and alarm interlock functions in industrial processes.
Q Can the gauge be used for viscous or particle-containing media?
Yes, for applications involving viscous or particulate media, certain models can be customized with a diaphragm sealing structure. This prevents media from entering the gauge mechanism directly, protecting the internal components and extending service life in challenging process conditions such as slurries or high-viscosity fluids.

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