| Standard features of the Type 5509 include 316 SS wetted parts, a liquid-fillable case and ranges starting at 30 inches of water. Considerations for Selecting a Differential Pressure Gauge Includes: Process Media: 316 stainless steel diaphragm and housing standard for ranges of 15 psi and above. High strength Cobalt Alloy (Duratherm 600) for ranges below 15 psi. Optional Hastelloy-C diaphragm available. Pressure Gauge Range: 0-30 IW (inches of water differential) to 300 psi. Static Pressure: 145 psi for ranges of 10-30 IW (inches of water differential) Operating Environment: These gauges feature a 304 SS case and ring. Accuracy Requirements: The Type 5509 differential pressure gauge has an accuracy of ±2.5% full scale. Dial Size: Available in a 4" (100mm) or 6" (160mm) dial size. Connections: M or V2 NPTF (female) lower connection. Mounting Requirements: The Type 5509 can be stem, surface or pipe mounted. Type 5509 - Open Front Design |