Low pressure range: 0~0.1 MPa to 0~2.5 MPa (similar to full plastic type).
Medium and high pressure range: 0~4.0 MPa to 0~60 MPa or even higher.
Core Features: The contact liquid components (such as connectors and Bourdon tubes) are made of stainless steel (e.g., 316, 316L) or coated with anti-corrosion materials (e.g., Hastelloy, Monel alloy, tantalum). For highly corrosive media (e.g., hydrogen sulfide, acidic gases), sulfur-resistant pressure gauges must be used.
Application scenarios:
Sulfur-containing acidic oil and gas fields: Mandatory use of sulfur-resistant materials to prevent sulfide stress corrosion cracking.
Chemical process, seawater injection system.
Measurement separator: Contact with multiphase mixtures such as oil, gas, water, and sand.