
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
28
Note:
For special material vessels add material code for head, cylinder and/or internal fittings per page 12.
*For alternate ratings please consult Parr Instrument Company.
Series 4670-4674
Model
Size
Head Style
4671
3.8 L
One opening, TBD
4672
3.8 L
VGR, thermowell
4673
5.8 L
One opening, TBD
4674
5.8 L
VGR, thermowell
Working Limits
Maximum Working Pressure*
(T316SS) 3000 psi (207 bar) @ 500 °C
[200 bar for CE orders]
Maximum Working Temperature*
with PTFE
with Flexible Graphite
350 °C
500 °C
Recommended Bolt Torque:
PTFE Gasket
(≤ 350 °C)
3000 PSI
35 ft-lbs
Flexible Graphite
Gasket (≤ 500 °C)
3000 PSI
45 ft-lbs
Part No.
Description Flat Gasket Seal
1811HC6
Head, VGR (two valves) & thermowell
1810HC
Cylinder, 3.8 L, 9.95" deep
1810HC3
Cylinder, 5.8 L, 15.19" deep
1812HCHA
Gasket, PTFE (5-1/2” ID)
1812HCKL
Gasket, Flexible Graphite (5-1/2” ID)
659HC
Compression Ring
A1423HC
Split ring, pair, w/ compression bolts
1278HC7F
Compression bolt for above (16 req.)
265HC4
Thermowell, 7.75" deep
265HC10
Thermowell, 11.87" deep
48HC
Thermowell Gasket, silver
48HCCN
Thermowell gasket, nickel
48HCFG
Thermowell Gasket, gold plated
A472E6
Thermocouple, 15-1/2”, 1G
A472E5
Thermocouple, 21-1/2”, 1.5G
209HC4
Bushing
208HC11
Adapter, Valve, ¼ NPTM
208HC13
Adapter, Valve, ¼ NPTM X ¼ NPTF
208HC15
Adapter, Angled, two ¼ NPTF
A176VB
Valve, ¼ NPTF
491HCAD
Nipple, Hex, Brass, ¼ NPTM
1446HC
Adapter, “A” cone, X ¼ NPTM
A1417HC
Rupture Disc Assembly (See 231M)
2587HC
Head/Cylinder Service Fixture
1811HC6 HEAD
A472E5 THERMOCOUPLE, 1.5 GAL
659HC COMPRESSION RING
1810HC3 CYLINDER, HP/HT, 1.5 GAL
265HC10 THERMOWELL, 1.5 GAL
1810HC CYLINDER, HP/HT, 1 GAL
A472E6 THERMOCOUPLE, 1 GAL
1415HCP SERIES R/D
A1423HC SPLIT RING ASSY
265HC4 THERMOWELL, 1 GAL
1812HCKL GASKET, GRAPHOIL
A1417HC R/D HOLDER ASSY
48HC SERIES GASKET
NOT SHOWN:
2X 36HC5 HANDLE, HP/HT CYL
209HC11 ADAPTER, VALVE
209HC4 BUSHING
A176VB STRAIGHT VALVE
(OPTIONAL)
56HC SERIES PRESSURE GAGE
1446HC ADAPTER
A176VB STRAIGHT VALVE
A176VB STRAIGHT VALVE
94CAAD PLUG, HEX
208HC13 ADAPTER, VALVE
209HC4 BUSHING
208HC15 ADAPTER, ANGLED
209HC4 BUSHING
914HC LOCKNUT
257HC28 DIP TUBE, 1 GAL
(OPTIONAL)
257HC29 DIP TUBE, 1.5 GAL
491HC NIPPLE