Series 4660 Pressure Vessel Systems, 1 & 2 Gallon Specifications

Series 4660 Pressure Vessel Specifications
Shaded bar indicates specifications that change within series.
Model Number 4660
Approximate Volume, Gallon (Liter) 1 (3.75) 2 (7.99)
Maximum Pressure (MAWP) 1900 psi (131 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 350 °C
Vessel Details
Mounting Style Moveable or Fixed Head
Closure Split-Ring (10 Compression Bolts, no Compression Bolts for O-ring)
Head Opening Options One head opening (1/4″ NPT  or rupture disc assembly port)
Ports for valve, gage, rupture disc, and thermowell with thermocouple (VGR)
Custom port option (Contact our technical sales department to discuss options)
Maximum Head Options 10 (Dependent on opening size, and required fittings)
Valve Connections 1/4″ NPT Female
Pressure Gage, Size 4.5″ Diameter
Range 0-2000 psi (138 bar)
Temperature Measurement Thermowell
Cooling Coil (optional) Serpentine
Bottom Drain Valve (BDV) (optional) 3/8″ NPT
Stand and Heater (optional)
Stand Type* Floor Cart with heater (moveable head only)
Floor Stand with Pneumatic Lift and heater (fixed head)
Heater Style, Bench Top Heater Calrod
Heater Power, Watts 2250 2750
Maximum Load, amps, 230V 10 12
*Heater watts and amps vary between different heater styles, contact Parr Technical Support for more information.
Weight & Dimensions
Cylinder I.D. x Depth, inches 6.0 x 8.5 6.0 x 17.1
Vessel Assembly w/ Moveable Head
Weight, pounds**
84 103
Vessel Assembly w/ Fixed Head
Weight, pounds**
98 117
Cylinder Weight, pounds 33 52
** 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.

Other options available. See Ordering Guide or call for more information.