Pall Stax, Инструкция по эксплуатации

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4. Ensure that the capsule stack is correctly clamped by the chassis clamping plate before
connecting the hoses. No gaps should exist between the capsules, manifold and the
clamping plate.
5. Control valves should be fitted to the inlet and outlet pipes of the distribution manifolds to
control fluid flow. Venting of the system must be carried out before operation through the
valves on the vent manifold. When used with fluid flow in through the bottom of the system
and out through the top, venting can be achieved through the control valve fitted to the inlet
of the top manifold and through the outlet pipe.
6. To assist with post-use blown down, it is recommended that for bottom-in, top-out flow
configuration, that the bottom outlet valve should be shut during normal operation and opened
for draining down after use. Refer to section 7.1 for post-use drainage and blow down.
7. Where a positive pressure exists downstream of the capsule assembly, a sensitive check
valve may be needed to prevent back pressure damage due to reverse flow.
8. Where pulsating flow is present, the capsule assembly should be protected by a surge tank
or similar device upstream.
9. Where a rapidly closing downstream valve is present, the possibility of pressure pulsing and
subsequent filter damage exists. The capsule assembly should be protected by a surge
tank or similar device between valve and filter.
10. Depending on the application, rinsing with filtered water or buffer in a forward flow
direction is recommended prior to putting the Stax capsules into operation. Rinsing can be
performed with product or a product-compatible liquid. The recommended rinsing volume
is 50 L/m
2
of filter area for single layer filters and 100 L/m
2
of filter area for double layer
filters. The recommended flow rate for the rinsing cycle is 1.5 times the process flow rate.
4.2 Operation
Warning: Do not remove or attempt to remove the blanking caps, vent and drain
valves while the capsule assembly is in use. All valves or blanking caps must be
closed during filtration once venting operations have been performed. Stax
capsules and manifolds must not be used without the appropriate chassis.
4.2.1 Liquid Applications
1. Stax standard capsules are suitable for autoclaving and the system can be
operated under sterile conditions. However, Stax capsule filter media are not
sterilizing grade filters and will not sterilize a non-sterile liquid.
Warning: Stax carbon capsules incorporating Seitz AKS media must not
be autoclaved.
2. Remove the capsule and manifolds from their bags or protective autoclave
wrapping and correctly assemble into the chassis as described in Appendix A:
Chassis User Instructions — Pilot Scale on page 8 or Appendix B: Chassis User
Instructions — Process Scale 5 and 10 High on page 10. Attach process lines to
the appropriate inlet and outlet pipes of the manifold using sanitary flange
connections, ensuring that the gaskets are properly installed and the clamps
adequately tightened.
3. The valves are operated by rotation; rotate counter clockwise to open, rotate
clockwise to close. Where fitted open the vent valves and slowly begin to fill the
capsule. Close the vent valves as soon as all excess air escapes the assembly
and liquid reaches the level of the vents.
4. Gradually increase the flow rate or pressure to the desired value. Do not exceed
the maximum operating parameters listed in the specifications section of the
product datasheet.
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USD 2554c
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