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Low-Pressure Diaphragm Vacuum Gauges
-- Steady & Reliable Manufacturer --
Product Overview
Our low-pressure diaphragm and vacuum gauges are specifically engineered for highly sensitive measurements of pressure, vacuum, or compound pressure in ranges too low for standard Bourdon tube gauges. Ideal for critical processes requiring the utmost accuracy at small pressure differentials, these instruments utilize a robust diaphragm sensing element that is highly responsive to minor changes. They are essential for applications where even slight variations in pressure can impact product quality or process efficiency.
Key Features
- Sensitive Diaphragm Technology.
- High indication accuracy, especially in the low-pressure range.
- Available in various case materials for environmental compatibility.
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Technical Specification Sheet
| Parameter | Detail |
|---|---|
| Pressure Range | From 0-25 mbar up to 0-600 mbar (Vacuum & Compound available) |
| Accuracy Class | ±1.6% or ±2.5% of full scale |
| Nominal Size | DN 100 mm (4"), 150 mm (6") |
| Wetted Parts Material | Stainless Steel 316L, Copper Alloy |
| Case Material | Stainless Steel 304 or Black Steel |
| Process Connection | G1/2, NPT1/2 (Bottom or Back) |
| Protection Rating | IP54 or IP65 (weatherproof) |
Typical Use Cases
- HVAC Systems: Monitoring differential pressure across filters.
- Medical Equipment: Low-pressure gas control and regulation.
- Laboratory Use: Precise vacuum measurement in research and testing.
- Gas Burner Systems: Draft and flue gas pressure monitoring.
- Chemical Processing: Low-pressure vessel monitoring.
Competitive Benefits
- Exceptional Sensitivity: Reads pressures down to a few millibar with reliability.
- Robust Construction: Diaphragm system resists minor overpressure better than bellows.
- Media Versatility: Suitable for gaseous, dry, and non-corrosive media (depending on material).
- Clear Readability: Large dial sizes ensure easy, precise local monitoring.
- Custom Calibration: Can be calibrated to specific unit requirements (e.g., mmH2O).
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Low-Pressure Diaphragm Vacuum Gauges Manufacturers
Wuxi Huihua Special Instrumentation Co., Ltd. was established in December 2001, the registered capital is 5 million yuan, the existing staff of more than 50 small and medium-sized joint-stock enterprises.
The company specialises in the production of various types of special instruments, alternative to the localisation of imported instruments.To seismic pressure gauge, seismic electric contact pressure gauge, stainless steel pressure gauge, diaphragm corrosion-resistant pressure gauge, marine pressure gauge and other series as the main products. On the basis of field instruments, we have developed various kinds of pressure transmitters, pressure controllers, digital pressure gauges and so on. There are more than 30 series and 3000 specifications. Products are widely used in petroleum, chemical, paper, metallurgy, mining, chemical fibre, electric power, food, environmental protection, rubber and plastic, hydraulics and many other industries, and more than 2,000 domestic customers to establish a friendly relationship with the national large and medium-sized enterprises to establish a good partnership, won the majority of users praise, and set up a corporate brand image.
