Pressure Vessels Selection Guide

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Series 4680-4683 HP/HT Vessels, 1-1.8 L


Series 4680 Pressure Vessel Specifications
Shaded bar indicates specifications that change within series.
Model Number 4680(FH)* 4681(FH)* 4682(FH)* 4683(FH)*
Sizes, mL 1000 1800
Maximum Pressure @ 350 °C 6000 psi (410 bar)
Maximum Temperature 600 °C
Max. Pressure at Max. Temperature 4200 (290)
Closure Split-Ring (12 Cap Screws)
Gasket Flat – FG
Vessel Dimensions
Inside Diameter, inches 3.75
Inside Depth, inches 6.12 10.5
Weight of Vessel, pounds 75 90
Head Style
Opening Rupture disc Only VGR** Rupture disc Only VGR**
Thermowell No Yes No Yes
Mounting Moveable Floor Stand or Fixed Head Stand
Maximum Head Openings 8
*Add the following suffix to these model numbers to specify vessels with the described feature:
FH Fixed Head design
**VGR stands for Valve, Gage, and Rupture Disc
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