תיאור
The Series 4675 General Purpose Vessels are the largest vessels offered by Parr Instrument Company. Vessel styles are offered in a moveable head or fixed head design. These vessels are available with an FKM O-ring seal for operating temperatures to 225 °C, and FFKM O-ring for temperatures to 300 °C, or with a flat, PTFE gasket for operating temperatures up to 350 °C maximum.
In the moveable head design, the vessel is held in a support system which minimizes the physical effort required to handle these heavy components. The hoist is attached to a support column which provides a convenient means for lifting the head and cylinder out of the stand. These components may be transferred to the holding position on the right side of the stand. Vessels equipped with a bottom drain valve will probably remain in the heater most of the time, but can be lifted out when necessary.
The fixed head support stand features hinged split-rings that swing to either side allowing the head to remain fixed to the stand while a pneumatic lift allows the cylinder to be raised and lowered. When lowered, the cylinder can be slid forward for cleaning and servicing.
These vessels are generally used for pilot plant or for custom chemical production purposes, usually with a variety of attachments added to the basic units.
| Model Number | 4675 | |
| Approximate Volume, Gallons (Liters) | 5 (18.75) | 2.6 (10) |
| 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 with 12 Compression Bolts | Split-Ring with 10 Compression Bolts |
| Head Opening Options | One head opening (1/4″ NPT, 3/8″ 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 | 12 (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) | 1″ NPS | |
| Stand with Heater (optional) | ||
| Stand Styles | Table Floor Stand with manual hoist (moveable head) Floor Stand with Pneumatic Lift (fixed head) |
|
| Heater Options* | Band Heater, 3-Zone, Ceramic, 3-Zone (Moveable Head), Flexible Mantle Heater | |
| Heater Power Requirements | Typical power requirements for Parr’s large, electrically heated pressure vessels are 40 Amp single phase or 3-Phase power sources. Users are advised to have a qualified electrician determine and install an appropriate mains power supply for the large pressure vessel system. Large pressure vessel systems with lower electrical power requirements, such as low temperature applications are available for use with typical 20 amp 230 volt sources. Contact Parr Technical Sales staff for assistance with electrical specifications. |
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| Weight & Dimensions | ||
| Cylinder I.D. x Depth, inches | 9.5 x 16.25 | 7.75 x 12.2 |
| Moveable Vessel Assembly Weight, pounds** | 335 | 194 |
| Fixed Vessel Assembly Weight, pounds** | 336 | 195 |
| Cylinder Weight, pounds | 157 | 97 |
| **Vessel weight is based on a vessel with VGR head fittings. Vessel weight will vary based on head configuration choice and fitting options. | ||
