Parr Instrument - page 240

138 P a r r I n s t r u m e n t C o m p a n y
w w w . p a r r i n s t . c o m
Series 4680 High Pressure /High Temp. Vessels: 1 & 1.8 Liters
Series 4680 Pressure Vessel Specifications
Shaded bar indicates specifications that change within series.
Model Number 4680* 4681* 4682* 4683*
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 0 90
Head Style
Opening Rupture disc Only VGR Rupture disc Only VGR
Thermowell No Yes No Yes
Heater (Ceramic Fiber)
For Moveable Head: Model / Wattage 4931 / 2300 4932 / 2500
For Fixed Head: Model / Wattage 4981 / 2300 4982 / 2500
Vessel Style Moveable (Floor Stand) or Fixed Head (Stand)
Maximum Head Openings 8
* Add the following suffixes to these model numbers to specify vessels with the described features:
No suffix: Moveable Head
FH: Add the suffix FH to specify a Fixed Head design.
Cross Section 4680-4683
4683 Fixed Head, 1.8 L Vessel, double valve
w/ dip tube, gas release valve, gage,
rupture disc, and thermowell.
4683 Fixed Head, 1.8 L Vessel shown with Split Rings
open and vessel down using a pneumatic lift.