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NOTE: May be used with Hydrogen where pressures are less than 35 psi.
Service: Aluminum Case: Air and compatible gases and oil based liquids. Brass Case: Air and compatible gases and water based liquids. Wetted Materials: Consult factory. Housing: Die cast aluminum with impregnated hard coating, standard. Optional forged brass housing is required for water or water based fluids.Special material diaphragms available, contact factory. Accuracy: ±3% of full scale at 70°F (21.1°C). (±2% on 4000S models, ±4% on 4200, 4210, 4215, 4220, 4300, 4400, and 4500). Pressure Limits: -20" Hg to 500 psig. (-0.677 bar to 34.4 bar). Temperature Limits: 20 to 200°F (-6.67 to 93.3°C). Size: 4" (101.6 mm) diameter dial face. Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations. Process Connections: 1/4" female NPT high and low pressure taps, duplicated - one pair top for air and gas, and one pair bottom for liquids. Weight: 3 lb, 3 oz (1.45 kg) aluminum case; 7 lb, 13 oz (3.54 kg) brass case. Standard Accessories: Two 1/4" NPT plugs for duplicate pressure taps, four flush mounting adapters with screws and four surface mounting screws.