(differential pressure gauge bellow type)
Bellow type differential pressure gauges utilize flexible metallic bellows to measure pressure differences across systems, offering superior accuracy (±0.5% FS) in challenging environments. These instruments operate within temperature ranges of -40°C to 400°C, withstanding pressures up to 6,000 psi. Unlike diaphragm-based models, bellows provide 30% greater stroke length, enabling precise measurement in viscous fluid applications common in petrochemical and pharmaceutical industries.
Advanced models feature dual-bellow configurations with temperature compensation, reducing measurement drift to <0.1% per year. Key performance metrics include:
Seamless integration with SCADA systems through 4-20 mA or HART protocols enhances process control capabilities.
Manufacturer | Pressure Range (psi) | Accuracy | MTBF (hrs) | Price Range ($) |
---|---|---|---|---|
Wika | 0-5,000 | ±0.5% | 250,000 | 850-2,200 |
Ashcroft | 0-6,000 | ±0.35% | 300,000 | 1,200-3,500 |
Dresser | 0-4,500 | ±0.6% | 200,000 | 700-1,800 |
Specialized configurations address unique operational requirements:
Industry | Application | Accuracy Improvement | Maintenance Reduction |
---|---|---|---|
Oil & Gas | Pipeline pressure monitoring | 42% | 35% |
Pharmaceutical | Cleanroom HVAC control | 28% | 50% |
Wastewater | Filter clog detection | 37% | 40% |
Base models start at $650 for standard 304 stainless steel units, while ATEX-certified versions with explosion-proof housings range from $2,800 to $5,400. Volume purchasing (50+ units) typically reduces unit costs by 12-18%.
Recent advancements include MEMS-based sensors achieving 0.1% accuracy and IoT-enabled devices providing predictive maintenance alerts. Leading manufacturers now offer 10-year warranties on bellow assemblies, reflecting improved durability in differential pressure gauge bellow type
designs.
(differential pressure gauge bellow type)
A: Bellow-type differential pressure gauges feature a flexible stainless steel bellows mechanism, high accuracy for low-pressure applications, and robust construction suitable for industrial environments like HVAC and chemical processing.
A: Leading companies include WIKA, Ashcroft, and Dwyer Instruments, which offer certified, industry-specific bellow-type differential pressure gauges with customization options.
A: Pricing depends on material quality (e.g., stainless steel bellows), pressure range, additional features like digital displays, and order volume, with standard models starting at $150.
A: They provide superior sensitivity to minute pressure changes, enhanced durability in high-vibration settings, and lower long-term maintenance costs due to reduced wear.
A: Yes, most manufacturers offer tailored quotes based on specifications like pressure ratings, connection types, and certifications—contact their sales teams via website portals for details.