Pressure Vessels Selection Guide

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

Customer Service

Contact us to place an order or inquire about any of our products and services.


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

Series 4760-4777 General Purpose & High Temperature Pressure Vessels, 100-600 mL

This very versatile line of non-stirred pressure vessels come in a variety of sizes and configurations. All come standard with a 2.5-inch inside diameter, split-ring with 6 cap screws or an O-ring with split ring and no cap screws, and can accommodate a maximum of seven head openings. You have a choice of three different standard head openings: a 1/8-inch NPT with plug, an “A” socket, or a Valve, Gage, and Rupture Disc (VGR) with a Thermowell. Add a Grafoil Gasket to the 300 mL, 450 mL, or 600 mL vessel and you have a High Temperature (HT) Vessel capable of 500 °C with a MAWP rating of 2000 psi (137 bar). These vessels are available as either a moveable or fixed head design.

Contact Us