8270A/8370A
Operators Manual
12
Rear-Panel Manifold Pressure Connections
The 8270A comes with one of three types of manifolds installed:
NPT
BSP
SAE
The type of manifold is marked on its lower right corner. Table 4 lists the different
manifolds and port sizes. Manifold installation is explained in the
Maintenance
section.
Table 4. 8270A Rear-Panel Manifolds
Manifold
SUPPLY
EXHAUST
TEST
Reference
(REF)
VENT
NPT
[1]
1/4 inch
NPT
1/4 inch
NPT
1/4 inch
NPT
1/4 inch
NPT
1/8 inch
NPT
BSP
[2]
1/4 inch
BSP
1/4 inch
BSP
1/4 inch
BSP
1/4 inch
BSP
1/8 inch
BSP
SAE
[3]
7/16-20
SAE
7/16-20
SAE
7/16-20
SAE
7/16-20
SAE
7/16-20
SAE
[1]
Requires the use of PTFE tape on the male adapter to ensure a good seal.
[2]
Bonded seal is required to ensure a good seal.
[3]
O-ring is required (which is normally included on the fitting) to ensure a good seal.
A lines and fittings kit can be purchased to supply the common adapters used to
connect to the manifolds. See
User-Replaceable Parts and Accessories
for more
information.
The 8370A is available with only one type of manifold block. The pressure
connection types are:
Supply
DH500
Test
DH500
Reference
1/4 inch NPT
Exhaust
1/4 inch NPT
Vent
1/8 inch NPT
DH500 is a cone and threaded high-pressure connection equivalent to AE F250C
or HiP HF4.
Pneumatic schematics are shown in Figures 4 and 5.