Classic Reliability, Intuitive Precision: The New Instrument YB-150 Series 4-Inch Mechanical Pressure Gauge
In an era where digital technology is sweeping through the industrial sector, the mechanical analog pressure gauge still plays an irreplaceable role in countless on-site monitoring tasks, thanks to its unique advantages of requiring no power supply, rugged durability, and intuitive readability. Xi'an Xinyi Instrument Technology Co., Ltd., deeply understanding the timeless value of classic instrumentation, proudly introduces the YB-150 Series 4-inch (100 mm) Mechanical Pressure Gauge. Specifically designed for routine pressure monitoring within the range of 0 to 600 PSI, this product utilizes the proven Bourdon tube (phosphor bronze) sensing principle. Combined with a clearly legible 4-inch dial and a standard 1/4-inch NPT connection, it offers reliable accuracy of ±1.5% FS, wide temperature adaptability from -40°C to 60°C, and a stainless steel case, making it the ideal auxiliary choice for HVAC systems, air compressors, water pumps, and various general industrial equipment.
1. All-Mechanical Structure, Ultimate Reliability Without Power
The core value of the YB-150 lies in its all-mechanical design. It relies entirely on the internal phosphor bronze Bourdon tube, which elastically deforms under pressure, driving a pointer via a precision linkage to indicate pressure on the dial. The entire process requires no external power, fundamentally eliminating electrical faults, electromagnetic interference, and explosion-proof hazards. This makes it the most stable and reliable monitoring choice for high-safety applications like the chemical and petroleum industries, as well as areas without on-site power supply.
2. 4-Inch Large Dial, Clearly Readable from a Distance
The product features a clear 4-inch (100 mm) diameter dial with distinct graduations and a prominent pointer. Even in low-light conditions or when installed at a distance, operators can quickly and accurately read the current pressure value. This intuitive analog display allows observers to instantly perceive pressure changes and trends through the pointer's position and swing – a unique advantage not offered by digital displays.
3. Rugged Construction and Standard Connection, Easy to Integrate
The YB-150 is equipped with a stainless steel case, effectively resisting oil, moisture, and general corrosion. Its 1/4-inch NPT standard tapered pipe thread connection is an industry standard in North America and internationally, offering strong compatibility and easy installation on various pipes, valves, and equipment. The bottom-mounted design is simple and sturdy, suitable for most panel or direct-mounting scenarios.
Solid Parameters, Establishing a Classic Status:
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Model: YB-150 Mechanical Analog Pressure Gauge.
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Display Type: Analog Dial (Pointer Type) .
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Measurement Range: 0 to 600 PSI (other common units available).
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Accuracy Class: ±1.5% of Full Scale.
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Dial Size: 4 inches / 100 mm.
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Connection Specification: 1/4 inch NPT (bottom mount).
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Sensing Element: Phosphor Bronze Bourdon Tube.
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Case Material: Stainless Steel.
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Operating Temperature: -40°C to 60°C.
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Compatible Media: Suitable for various non-highly corrosive fluids like water, oil, and air.
Widely Used in General Industry and Equipment Integration:
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HVAC & Refrigeration: Monitoring refrigerant pressure, cooling water pressure, and air pressure in HVAC systems to assist with system commissioning and energy efficiency management.
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Pneumatic & Hydraulic Systems: Local indication of air compressor tank pressure, pneumatic line pressure, and return oil pressure in small hydraulic power units.
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General Equipment Integration: Serving as a standard accessory for water pumps, firefighting equipment, packaging machinery, and pressure vessels to provide local pressure display.
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Water Treatment & Pipeline Networks: Simple and reliable pressure monitoring in community water supply systems and water treatment plant filters.
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