Pressure Vessels Selection Guide

Need help picking out a pressure vessel? Visit our new Pressure Vessels Selection Guide.

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Parr Instrument Company 211 Fifty Third Street
Moline, Illinois 61265-1770
(800) 872-7720 or
(309) 762-7716
Fax: (309) 762-9453

Series 4790 Pressure Vessel Systems: 25-100 mL

Series 4790 System Ordering Guide

An example order string for this series is: 4790-__mL-T-SS-VGR-3000

A composite identification number to be used when ordering a 4790 Series
Vessel System can be developed by combining individual symbols from the
separate sections below.

Please note that all options and combinations are not compatible with all models.

ASeries 4790 Base Model
Size, mL Head Style
-25 mL One opening, 1/8″ NPT
-50 mL One opening, 1/8″ NPT
-100 mL One opening, 1/8″ NPT
BRating Options
-No Symbol 3000 psi / 200 bar @ 350 °C
-HP 5000 psi / 345 bar @ 350 °C
-HP/HT 5000 psi / 345 bar @ 500 °C (Fixed Head only)
CHead Style Options
-No Symbol Standard Configuration, Moveable Head
-FH Fixed Head Vessel
DGasket / Maximum Temperature
-T PTFE Flat Gasket / 350 °C
-FG Flexible Graphite, Flat Gasket / 500 °C (HP/HT option only)
-OV FKM O-ring / 225 °C
-OK FFKM O-ring / 300 °C
EHead Options
-VGR Valve on Gage Adapter, Gage, & Rupture Disc
-V Valve on Head (VGR Required)
-VD Single Valve on Head with Dip Tube (VGR Required)
-DVD Double Valve Assembly on Head with Dip Tube (VGR Required)
-TC Thermocouple
F Material of Construction
-SS T316 Stainless Steel
-MO Alloy 400*
-IN Alloy 600
-HB Alloy B-2/B-3*
-HC Alloy C-276
-CS Alloy 20
-TI2 Titanium Grade 2*
-TI4 Titanium Grade 4*
-ZR702 Zirconium Grade 702*
-ZR705 Zirconium Grade 705*
*Maximum temperature and/or pressure limited.
See Materials of Construction for other available alloys.
G Heater Stand Options
-NS Heater only, no stand
-BTS Bench Top Stand
See Section “K” for Welded Jacket option
H Heater
-H115 115V Heater: The appropriate heater will be added to your system. Please see Specification Guide for more information.
-H230 230V Heater: The appropriate heater will be added to your system. Please see Specification Guide for more information.
I Pressure Gage
-5000 5000 psi / 345 bar
-3000 3000 psi / 200 bar
-2000 2000 psi / 137 bar
-1000 1000 psi / 70 bar
-600 600 psi / 40 bar
-200 200 psi / 14 bar
-100 100 psi / 7 bar
J Controller
-4838 PID Control, Ramp & Soak Programming, and Data logging with Parr Software. For use with up to one additional display module.
-4848 PID Control, Ramp & Soak Programming, and Data logging with Parr Software. For use with up to three additional display modules.
-4871 Process Controller (for enhanced control options)
View a complete list of Controllers and options.
KController Options
-PDM Pressure Display Module
-HTM High Temperature Cut Off Module
-ETLM External Temperature Limit Module
-SVM Solenoid Valve Module (for cooling control)
-A1925E4 RS-485 to USB Cable for 4848 Controller (required for data logging)
-A1925E6 RS-485 to USB Converter, isolated, 30-ft
-A2208E RS-485 Daisy Chain for Multiple Controllers (Must be used with A1925E6)
-A3504HC SpecView Software Package for 4848/4838 Controller
L Custom Options (List All Desired)
-XCAD External Catalyst Addition Device
-SCP Solids Charging Port (Ball Valve)
-RC Reflux Condenser
-RTC Reflux/Take-Off Condenser
-WJ Welded Jacket
View a complete list of Optional Accessories.
MCertifications
-No Symbol No Certification
-ASME ASME Certification
-CE/PED CE or PED Certification
-CH China Certification
-P Parr Certification

Please note that all options and combinations are not compatible with all models.

If you do not find the pressure, temperature, volume, or options you are looking for here, let us customize a system for you.

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