Ashcroft 1327D Pressure Gauge Comparator
The Ashcroft 1327D is a versatile, field-portable pressure generation and testing system designed for calibration applications. It is particularly useful for quick comparisons to a master gauge, eliminating the need for a primary deadweight standard. This system combines a dependable pressure source with a proven secondary standard, all in a lightweight and compact design, making it ideal for both field and laboratory use.
Key Features
- Field-portable design for maximum utility
- Two-stage hydraulic pressure pump for efficient pressure generation
- Compatible with various fluids including petroleum oils, glycol, phosphate esters, and distilled water
- Includes necessary tools, adapters, and accessories for calibration
- All components are stored in a protective carrying case
Specifications
The Ashcroft 1327D utilizes one to four Ashcroft Type 1082 test gauges, which serve as comparison masters. These gauges cover an operating range from 0 to 10,000 psi (or equivalent metric ranges) and are temperature compensated with an accuracy of 0.25% of span, adhering to ASME (formerly ANSI) B40.1, grade 3A standards.
Pressure Pump Features
The pressure pump features a built-in two-position shuttle valve, allowing for quick pressure adjustments across the full range. Final pressure adjustments are made using an integral vernier-adjustment knob.
Fluid Compatibility
The 1327D is available in configurations for:
- Petroleum-based oils
- Glycol and phosphate ester-based hydraulic fluids
- Distilled water for calibrating oxygen service gauges
Included Gauges
| Gauge Model | Pressure Range |
|---|---|
| 1327DG-2 | 0-150 psig |
| 1327DG-6 | 0-150 & 0-600 psig |
| 1327DG-50 | 0-150; 0-600 & 0-5000 psig |
| 1327DG-100 | 0-150; 0-600; 0-5000 & 0-10,000 psig |
| 1327DMG-10 | 0-10 kg/cm2 |
| 1327DMG-40 | 0-10 & 0-40 kg/cm2 |
| 1327DMG-250 | 0-10; 0-40 & 0-250 kg/cm2 |
| 1327DMG-600 | 0-10; 0-40; 0-250 & 0-600 kg/cm2 |
| 1327DBG-10 | 0-10 bar |
| 1327DBG-40 | 0-10 & 0-40 bar |
| 1327DBG-250 | 0-10; 0-40 & 0-250 bar |
| 1327DBG-600 | 0-10; 0-40; 0-250 & 0-600 bar |
| 1327DAG-1000 | 0-1000 kPa |
| 1327DAG-4000 | 0-1000 & 0-4000 kPa |
| 1327DAG-25000 | 0-1000; 0-4000 & 0-25,000 kPa |
| 1327DAG-60000 | 0-1000; 0-4000; 0-25,000 & 0-60,000 kPa |
Additional Specifications
- Accuracy: 0.25% of gauge span
- Operating Pressure: 0 to 10,000 psi (0 to 70,000 kPa)
- Operating Fluid:
- 1327D: SAE 20 automotive or machine oil
- 1327DH: Phosphate or glycol-based hydraulic fluids
- 1327DO: Distilled water for oxygen service
- Reservoir Volume: Approximately 1.5 pints (0.7 liters)
- O-Ring Seals:
- 1327D and 1327DO: Buna-N
- 1327DH: Ethylene Propylene
- Pump Body Material: Aluminum alloy
- Certification:
- Standard: No documentation provided
- Optional: NIST traceability document available for each gauge
