| Series 4790 Pressure Vessel Specifications | |||
| Shaded bar indicates specifications that change within series. | |||
| Model Number | 4790 | ||
| Approximate Volume, mL | 25 | 50 | 100 |
| Maximum Pressure (MAWP) | |||
| Standard Rating | 3000 psi (207 bar, 200 bar for CE/UKCA orders) | ||
| High Pressure (HP) | 5000 psi (345 bar) | ||
| High Pressure/High Temperature (HP/HT) | 5000 psi (345 bar) | ||
| Maximum Temperature | |||
| with FKM O-ring | 225 °C | ||
| with FFKM O-ring | 300 °C | ||
| with PTFE Flat Gasket | 350 °C | ||
| with Flexible Graphite Flat Gasket (HP/HT only) | 500 °C | ||
| Vessel Details | |||
| Mounting Style | Moveable or Fixed Head (HP/HT option requires Fixed Head) | ||
| Closure | Split-Ring (6 Compression Bolts for Flat Gasket, no Compression Bolts for O-ring) or Screw Cap (O-ring seal only) | ||
| Head Opening Options | One head opening (1/8″ NPT*, 1/4″ NPT*, “A” socket, or rupture disc assembly port) Ports for valve, gage, rupture disc, and thermocouple (VGR**) Custom port option (Contact our technical sales department to discuss options) |
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| Maximum Head Openings | 5 (Dependent on opening size, and required fittings) | ||
| Valve Connections | 1/8″ NPT Male (standard rating), 1/4″ NPT Male (HP), 1/4″ NPT Female (HP/HT) | ||
| Pressure Gage, Size | 3.5 inches | ||
| Range, Standard Temp. | 0-3000 psi (207 bar) | ||
| Range, HP & HP/HT | 0-5000 psi (345 bar) | ||
| Temperature Measurement | Fixed Thermocouple (Thermowell for special alloys) | ||
| Cooling (optional) | Cold Finger | ||
| * NPT ports are not available for vessels with a High Temperature (HT) rating. ** 4790HPHT requires VGR. |
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| Stand and Heater (optional) | |||
| Stand Type | Heater Only (standard rated and HP vessels only) and Bench Top Stand with Heater (required for HT vessels) |
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| Heater Style (Standard rating & HP) | Ceramic Fiber Heater | ||
| Heater Power, Watts | 700 | 350 | |
| Maximum Load, amps, 115V / 230V | 6/3 | 3/2 | |
| Heater Style (HP/HT) | Ceramic Fiber Heater | ||
| Heater Power, Watts | 700 | ||
| Maximum Load, amps, 115V / 230V | 6/3 | ||
| Weights & Dimensions | |||
| Cylinder I.D. x Depth, inches | 1.0 x 2.0 | 1.3 x 2.3 | 1.3 x 4.6 |
| Vessel Assembly w/ Moveable Head Weight, pounds** |
16 | 15 | 16 |
| Vessel Assembly w/ Fixed Head Weight, pounds** |
17 | 17 | 18 |
| Cylinder Weight, pounds | 3.5 | 3.1 | 4.2 |
| ** Vessel Assembly weight varies based on head configuration choice and fitting options. Weights shown are based on vessels with valve, gage, rupture disc, thermocouple, and double valve assembly. | |||
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Other options available. See Ordering Guide or call for more information. |
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