6. Set the clamping force on the cassettes in the holder to the recommended torque
for manual torque (MT) holders or hydraulic pressure for auto-torque (AT) holders
according to the instructions found in Section 2.3.
Two gaskets are supplied with each cassette. Installing the first cassette in a holder
requires two gaskets. Installing each additional cassette requires only one gasket. In
holders where cassettes are installed on each side of the central manifold, two
gaskets will be required for each first cassette. Save extra gaskets to replace worn or
damaged gaskets.
Gaskets lose their resiliency over time. Therefore, it is recommended that you replace
gaskets every six months, or more frequently if a gasket appears to be damaged or
you repeatedly open and close the holder.
Figure 10
Example of Multiple Cassette Installation
2.3 How to Torque Pall AT and MT Cassette Holders
1. Install the membrane cassette and gaskets in the holder according to Section 2.2.
2. Choose the value at the low end of the hydraulic pressure range for AT assemblies (Table 1)
or the torque range for MT holders (Table 2) — unless experience has established a different
value for use.
3. Compress the holder:
AT Assemblies
(i) Ensure that the nuts are screwed up against the end plate. They need not be tight.
(ii) Close the bypass valve on the hydraulic pump.
(iii) Turn on the air supply (1) to the hydraulic pump.
(iv) Increase the hydraulic pressure (2) on the hydraulic pump until it reaches the pressure value
you determined in step 2.
14
Hardware End-plate
Hardware Manifold
Gasket
Gasket
Gasket
Pall Omega 10 kD
Centrasette Cassette
Pall Omega 10 kD
Centrasette Cassette
To Next Page
Loading...
Need help?
General
