Parr Instrument 4703, Operating Instructions Manual, Page: 16 / 36

General Purpose Pressure Vessels
P a r r I n s t r u m e n t C o m p a n y
16
Note: For special material vessels add material code for head, cylinder and/or internal fittings per page 12.
Series 4760-4777
Model Size Head Style
4760 300 mL One opening, TBD
4761 300 mL “A” Socket
4762 450 mL One opening, TBD
4763 450 mL “A” Socket
4764 600 mL One opening, TBD
4765 600 mL “A” Socket
4766 300 mL VGR
4767 450 mL VGR
4768 600 mL VGR
4772 160 mL One opening, TBD
4773 160 mL “A” Socket
4774 160 mL VGR
4775 100 mL One opening, TBD
4776 100 mL “A” Socket
4777 100 mL VGR
Working Limits
Maximum Working Pressure
3000 psi (207 bar) @ 350 °C
[200 bar for CE orders]
Maximum Working Temperature
with PTFE confined flat gasket 350 °C
Recommended Bolt Torque:
PTFE Gasket 25 ft - lbs
Flexible Graphite
35 ft - lbs
Part No. Description Flat Gasket Seal
453HC Head, "A" Socket opening
453HC5 Head, "A" Socket & 1/8” NPT
453HC79*
Head, “A” Socket & 1/8” NPT for
thermowell
818HC45 Head, VGR
452HC Cylinder, 300 mL, 3.94" deep
452HC2 Cylinder, 450 mL, 5.94" deep
452HC3 Cylinder, 600 mL, 7.94" deep
452HC9 Cylinder, 160 mL, 2.00" deep
452HC8 Cylinder, 100 mL, 2.00" deep, 2” ID
457HC2 Gasket, PTFE
457HC3KL Gasket, Flexible Graphite
454HC
Compression Ring
A455HC Split ring, pair, with cap screws
232HCFDE Cap screw for above (6 required)
A456HC
Drop band with set screw
456HCF Set screw for above
A833HC Connector for thermocouple
A472E Thermocouple, 7-1/2”, SS
A472E2 Thermocouple, 9-1/2”, SS
A472E3 Thermocouple, 11-1/2, SS
A1453HC Thermowell
A138CA Connector for thermowell
2583HC Head/Cylinder Service Fixture
Liners
Volume Pyrex PTFE
100 mL 762HC7 762HC7HA
160 mL 762HC8 762HC8HA
300 ML 762HC 762HC4HA
450 mL 762HC2 762HC5HA
600 mL 762HC3 762HC6HA