Stainless steel capsule pressure gauge.jpg

China Stainless Steel Capsule Pressure Gauge - Low & Negative Pressure Measurement Suppliers & Factory

The product is designed to accurately measure low pressure and negative pressure of slightly corrosive gases, making it an essential tool for various applications. Commonly utilized in boiler ventilation, gas pipelines, and combustion devices, this device is highly valued across multiple industries, including petroleum, chemical, metallurgy, power, food, medical, environmental protection, and machinery. As a leading supplier and manufacturer in China, our factory ensures that you receive high-quality products tailored to meet your needs in diverse industrial settings.

Product Details

Specifications

Nominal Diameter	Φ70mm, Φ75mm, Φ100mm, Φ160mm
Accuracy Class	Class 1.6 (nominal diameter Φ100mm, Φ160mm)
	Class 2.5 (nominal diameter Φ70mm, Φ75mm)
Measuring Range	-60 kPa...... 2.5 kPa~0~2.5 kPa......60 kPa
	Applicable to (nominal diameter Φ70 mm, Φ75 mm)
	60 kPa...... 1 kPa~0~1 kPa......60 kPa
	Applicable to (nominal diameter Φ100mm)
	60kPa...... 4kPa~0~250Pa......60kPa
	Applicable to (nominal diameter Φ160mm)
	Or other equivalent pressure vacuum ranges
Overpressure Capacity	Full Range × 130%
Ambient Temperature	-40℃ ~ 70℃
Media Temperature	-40℃ ~ 100℃
	When the ambient temperature deviates from 20℃ ± 5℃, the indication error is lower than or equal 0.04% / ℃
Process Connection	Φ70mm M14X1.5, 1/4"NPT, G1/4"
Others (other connection as per request.)	M20X1.5, 1/2"NPT, G1/2"
Wetted Parts Material	316SS
Case Material	304SS (316SS Optional)
Movement Material	304SS
Pressure Sensing Element	Capsule
Instrument Pointer	Aluminum alloy, Black
Instrument Dial	Aluminum alloy, Black letters on white background
Window	Φ70 organic glass; Other flat glass (Safety glass optional)
Ingress Protection	IP54, IP65, IP66

Frequently Asked Questions

Q What nominal diameters are available for this pressure gauge?

This pressure gauge is available in four nominal diameters: Φ70mm, Φ75mm, Φ100mm, and Φ160mm — suitable for a wide range of installation environments and panel sizes.
Q What is the accuracy class of this gauge, and does it vary by size?

Yes, the accuracy class depends on the nominal diameter. Class 1.6 applies to the Φ100mm and Φ160mm models, while Class 2.5 applies to the Φ70mm and Φ75mm models.
Q What process connection options are supported?

Standard connections for Φ70mm include M14×1.5, 1/4" NPT, and G1/4". Additional options such as M20×1.5, 1/2" NPT, and G1/2" are available upon request to accommodate different piping systems.
Q What is the operating temperature range for this gauge?

The ambient operating temperature ranges from -40℃ to 70℃, and the media temperature can range from -40℃ to 100℃. Note that when ambient temperature deviates from 20℃ ± 5℃, the indication error may be up to 0.04%/℃.
Q What materials are used in the construction of this gauge?

The wetted parts and movement are made of 316SS and 304SS respectively. The case is 304SS (with 316SS as an optional upgrade). The pointer and dial are aluminum alloy, ensuring durability and resistance to corrosion in demanding applications.
Q What ingress protection ratings are available, and is the gauge suitable for outdoor use?

The gauge is available with IP54, IP65, and IP66 ingress protection ratings, making it suitable for both indoor and outdoor installations, including environments exposed to dust, water splashing, and powerful jets.