The Ashcroft 1327D is a portable pressure gauge comparator, designed for high-accuracy calibration of pressure gauges in both lab and field environments. Here's a detailed breakdown of its specifications:

 Key Features

• Function: Generates and compares pressure readings for calibration
• Accuracy: 0.25% of gauge span (ASME B40.100, Grade 3A)
• Max Operating Pressure: Up to 10,000 psi (70,000 kPa)
• Reservoir Volume: Approx. 1.5 pints (0.7 liters)
• Pump Body Material: Aluminum alloy
• Gauge Options: 1 to 4 test gauges, temperature compensated

 Operating Fluids

• 1327D: SAE 20 automotive or machine oil
• 1327DH: Phosphate ester or glycol-based hydraulic fluids
• 1327DO: Distilled water (with corrosion inhibitors for oxygen service)

 Seals & Materials

1. Standard O-Rings: Buna-N
2. Optional O-Rings (1327DH): Ethylene Propylene
3. Bourdon Tube Materials: Bronze or Monel

Accessories Included

• Metal carrying/storage case
• Gauge pipe extension assemblies
• NPT adapters
• Wrenches and pointer puller set
• Spare O-ring kit
• Installation and operation manual