Perma-Cal 6 in. Caisson Gauge, 0.25% Acc. 225 MSW/750 FSW, Black, Front Flange, 1/4 in. MNPT Back Fitting

Perma-Cal® caisson gauges incorporate a Helical Bourdon Tube sealed within a capsule. Unlike standard pressure gauges which indicate the pressure relative to the ambient environment, Caisson Gauges indicate the pressure relative to the pressure within the capsule.

Accuracy

• Ascending: ±0.25% Full Scale | Descending ±0.50% Full Scale

• NIST Traceable Standard Calibration Certificate Included, per ASME B40.100

• Accuracy exceptions. Contact Amron for details.

• Cleaned for oxygen service

Case

• Size: 6 in.

• Material: ABS plastic
• Flange Position: Front
• Pressure Range: 225 MSW | 750 FSW Dual Scale
• Color: Black

• Connection: 1/4 in. Male NPT 316 stainless steel back fitting

• Window: Acrylic

Dial

• Stainless steel, powder coated finish, white with black markings

• Pointer Type: Test (knife-edged, precision reading), anodized aluminum, zero-adjustable

• Mirror Band: Yes

• Pointer Dampening: No

• External Zero Adjust: Yes

Operating Temperature

• Process Temperature: -65⁰ F to 250⁰ F / -53.89⁰ C to 121.11⁰ C

• Ambient Temperature: -65⁰ F to 190⁰ F / -53.89⁰ C to 87.78⁰ C

Pressure Rating

• Burst: 500% F.S. pressure or 25,000 psi

• Proof: 150% F.S. pressure

Wetted Parts

• Inconel X-750

• 300-Series Stainless Steel

• Silver braze