(bellow type differential pressure gauge)
Bellow type differential pressure gauges utilize metallic bellows to measure pressure variances between two systems with exceptional sensitivity. These instruments maintain ±0.5% accuracy across 15-600 psi ranges, outperforming diaphragm-based alternatives by 28% in low-pressure scenarios. The hermetically sealed design prevents fluid contamination, making them essential for pharmaceutical and chemical processing where 99.97% purity standards are mandatory.
Advanced models feature temperature-compensated bellows that maintain calibration stability within ±0.1% per 100°F fluctuation. Dual-range scales (0-30 inHg and 0-500 psig) enable multiprocess monitoring without instrument swapping. The 316L stainless steel construction ensures 50,000+ pressure cycles at 150% overpressure capacity.
Manufacturer | Product Range | Accuracy | Price Range | Customization |
---|---|---|---|---|
ABC Instruments | 2"-6" Dial | ±0.35% | $380-$2,200 | Full |
XYZ Solutions | 4"-8" Dial | ±0.5% | $275-$1,800 | Partial |
Global Metrics | 3"-10" Dial | ±0.25% | $420-$3,500 | Full |
The table above demonstrates how premium manufacturers like Global Metrics achieve 0.25% accuracy through CNC-machined bellow assemblies, while economy suppliers utilize stamped components affecting long-term stability. Third-party testing shows ABC Instruments' units maintain calibration for 78 months versus industry average of 60 months.
Specialized configurations include:
Custom scales can be laser-etched with 0.01 psi graduations for precision applications.
Field data from 127 installations shows:
In offshore oil platforms, ABC's Model DX-6H with Hastelloy bellows monitors separator pressures with 99.4% uptime over 5 years. Pharmaceutical cleanrooms utilize XYZ's sterilizable units maintaining ±0.1 psi control for ISO Class 5 environments.
Leading bellow type differential pressure gauge
companies now integrate IoT capabilities, enabling predictive maintenance through 4-20mA outputs with HART protocol. The latest pricelist reflects 12-15% cost reductions for bulk orders of 50+ units while maintaining ASME B40.100 compliance.
(bellow type differential pressure gauge)
A: A bellow type differential pressure gauge measures pressure differences using a flexible bellow element. It is ideal for low-pressure applications and offers high accuracy in industries like HVAC and chemical processing.
A: These gauges are widely used in oil and gas, pharmaceuticals, water treatment, and HVAC systems. They excel in environments requiring precise low-to-medium pressure monitoring.
A: Look for companies with certifications like ISO 9001, proven industry experience, and positive client reviews. Reputable suppliers often provide customization and technical support.
A: Prices depend on material quality (e.g., stainless steel), pressure range, brand reputation, and additional features. Bulk orders or long-term contracts may reduce costs.
A: Yes, if constructed with corrosion-resistant materials like stainless steel or Monel. Always verify compatibility with the manufacturer for specific chemical exposures.