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Dial 4.5” (115mm) aluminum with black and red markings 4.5” (115mm) aluminum with black and red markings
Case Black phenolic, with safety pressure relief back, solid front, integral back flange Black phenolic, with pressure relief back, solid front, integral back flange
Solid Wall Phenolic Phenolic
Pressure Relief Back Polypropylene Polypropylene 
Window Polycarbonate Polycarbonate
Ring Phenolic Phenolic
Pointer Aluminum, anodized black, micrometer adjustable Aluminum, anodized black, micrometer adjustable
Socket 316L SS  OT 58 brass
Connection 1/4” or 1/2” NPT standard, bottom or back 1/4” or 1/2” NPT standard, bottom or back
Bourdon Tube 316L SS, drawn seamless Phosphor bronze
Movement 304 SS protected with under and overload stops and StabiliZR™ dampened movement (silicone in sealed chamber) 304 SS protected with under and overload stops and StabiliZR™ dampened movement (silicone in sealed chamber)
Gasket Materials Silicone (Viton® option) Silicone (Viton® option)
Welding TIG Silver Alloy
Over-pressure Limit

25% for pressures up to 1,450 psi (9,998 kPa),

15% for pressures 1,500 psi to 8,700 psi (10,341 kPa to 59,984 kPa),

10% for pressures above 8,701 psi (59,984 kPa)

25% for pressures up to 1,450 psi (9,998 kPa),

15% for pressures 1,500 psi to 8,700 psi (10,341 kPa to 59,984 kPa),

10% for pressures above 8,701 psi (59,984 kPa)

Working Pressure Maximum 75% of full scale value Maximum 75% of full scale value
Ambient Temperature -40°F to 200°F (-40°C to 93°C) -40°F to 250°F (-40°C to 120°C)
Process Temperature -40°F to 257°F (-40°C to 125°C) -40°F to 150°F (-40°C to 65°C) 
Accuracy ±0.5% ANSI/ASME Grade 2A ±0.5% ANSI/ASME Grade 2A
Enclosure Rating IP65 IP65