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
14
Series 4740
Model Size
Head Style
4740
75 mL
“A” Socket
4742
25 mL
“A” Socket
Working Limits*
Maximum Working Pressure (T316SS)
8500 psi (586 bar) @ 350 °C
1850 psi (127 bar) @ 538 °C
Maximum Working Temperature
538 °C
*See Manual No. 294M for more information.
Recommended Bolt Torque:
PTFE or Flexible Graphite
8500 PSI
15 ft - lbs
Note:
For special material vessels add material code for head, cylinder and/or internal fittings per page 12.
**Required for maximum working pressure of 7900 psi (544 bar) at 538 °C for vessel of T316SS
Part No.
Description Flat Gasket Seal
1827HC
Head , "A" Socket opening
A1828HC
Cylinder, 75 mL
A1828HC2
Cylinder, 22 mL
1829HCKL
Gasket, Flexible Graphite
1826HC
Compression Ring
A33HD2
Screw Cap with compression bolts,
alloy steel
33HDF2
Compression Bolt for screw cap
(6 required)
A33HD2CH
**
Screw Cap with compression bolts,
Hastelloy C
40HD2HA
PTFE Liner, 25 mL
40HD
Pyrex Liner, 75 mL
40HDHA
PTFE Liner, 75 mL
1826HC
COMPRESSION RING
GASKET, GRAFOIL
1829HCKL
1827HC HEAD
SCREW CAP
A33HD2
COMPRESSION BOLTS
(6) 33HDF2
A1828HC (4740)
CYLINDER, 75mL
A1828HC2 (4742)
CYLINDER, 25mL