Description
Parr Instruments® Model 4748A 200 30509 Acid Digestion Vessel
Features:
- 4748 and 4748A vessels are largest of all Parr acid digestion vessels
- 4748 has 125 mL, removable PTFE cup in stainless steel body with six cap screws in screw cap to seal flanged PTFE cup
- Expandable wave spring maintains continuous pressure on the seal during cooling cycle when PTFE parts might otherwise relax and leak
- Stirring can be provided with magnetic stir bar
- 4748A provides 200 mL modification of the 125 mL, 4748 PTFE lined vessel for users who want additional capacity in this model
- Safety blow-off disc above PTFE cup will release pressure through opening in vessel head if pressure should accidentally reach 3500 psi range
- For safe operation, pressures in these vessels should never exceed 1900 psi and temperatures must not exceed 250 °C
- Operations should be conducted well below these limits whenever possible due to potential destructive forces in large vessel charge
- Also advisable to test any new procedures for safety in one of smaller vessels before scaling up to these sizes
- Wrench for cap screws is furnished with these vessels
- No other accessories are required
Specifications
| Range | Max Pressure: 1900 psig (= 131 bar = 13.1 MPa) |
|---|---|
| Range | Max Temperature: 250 °C |
| Capacity | 200mL |
| Material | Stainless Steel Shell / PTFE Liner |
| Dimensions | Liner Inner Diameter × Depth = 44.5 × 133.4 mm |
| Manufacturer | Parr Instruments |
| Model No | 4748A |