Home > Dial Indicating Pressure Gauges > 200 Series Low Pressure Diaphragm Gauges
200 Series Low Pressure Diaphragm Gauges
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Product Specifications Accuracy/Standard Dial Configuration Diaphragm Seals Options & Accessories Technical Manual Reference Information Standard Item Part Numbers 
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Features & Benefits
- Designed for extremely low pressure and vacuum measurement
- Ultra sensitive copper alloy diaphragm capsules are rated for pressure (or vacuum) as low as 0-10 inches of water and as high as 0-10 psi
- 2-1/2 and 4 inch sizes – bottom and back connections
- Molded Plexiglass™ lenses on 2-1/2 inch size and instrument glass on 4 inch size for strength and clarity
- Standard case on 2-1/2 inch size is black painted steel (optional Stainless steel), and Stainless steel on 4 inch case
- Phosphor bronze diaphragm capsules are coupled with precision all-brass movements to provide extremely accurate indication
- 25-206 & 25-216 are low pressure diaphragm OEM-Type gauges; they feature a black ABS case and a Copper Beryllium Alloy (CuBe) diaphragm capsule coupled with Cu-Alloy movement for extremely low pressure applications
- Available options include overpressure protection of up to 200% of the dial range
- Stock availability
Applications
- Medical
- Biomedical
- HVAC
- Gas distribution
- Filtration
- Burner and gas combustion service
- Waste water treatment
- Level indication and filter monitoring
- Everywhere low pressure and vacuum measurement is required
Operating Specifications
- Working Pressure Limitations
- Dynamic Pressure
The working pressure should be limited to
90% of the dial range for long service life. - Static Pressure
The working pressure, when no sharp fluctuations occur, should be limited to 100% of the dial range. - Ambient Temperature
-4°F to 140°F (-20°C to 60°C) - Media Temperature
-4°F to 176°F (-20°C to 80°C)
