Description
Design
ASME B40.100
Size
4″ (100mm)
Accuracy class
+ 0.25% of span (ASME B40.1 Grade 3A) for pressure range -30″ Hg to 600 psi
+ 0.5% of span (ASME B40.1 Grade 2A) for pressure range > 600 psi and < 2,000 psi
+ 0.25% of span (ASME B40.0 Grade 3A) for pressure range > 2,000 psi to 5,000 psi
Ranges
Vacuum 30″ Hg
Pressure from 15 psi to 5,000 psi (all ranges not available in 0.25% accuracy) or other equivalent units of pressure or vacuum
Pressure Connection
Material: Face-Seal Nut, 316SS
Face-Seal Gland 316L SS
Position: Lower Mount (LM)
Type of Connection: Swivel Male (FSM)
Swivel Female (FSF)
Socket
Material: 316LSS
Bourdon Tube
Material: 316 SS
30″ Hg (Vac) to 1,000 psi C-type
1,500 PSI to 5,000 psi helical type
Movement
Stainless steel
Dial
White aluminum with black lettering and mirrored band
Pointer
Black aluminum, micrometer adjustable, with knife edge
Case
304 SS with vent plug and polished stainless steel bayonet ring. Welded case to socket connection.
Standard Scale
PSI
Window
Laminated safety glass
Working Range
Steady: Full scale value
Fluctuating: 0.9 x full scale value
Short time: 1.3 x full scale value
Operating Temperature
Ambient: -40°F to 140°F (-40°C to 60°C)
Media: max. 212°F (+100°C)
Temperature error
Additional error when temperature changes from reference temperature of 68°F (20°C) ±0.4% for every 18°F (10°C) rising or falling. Percentage of span.
Window Gasket
Buna-N
Weather protection
Weather tight (NEMA 4X / IP 65)
