AXEON DT-Series User Manual

Page 29

DT – Series User’s Manual
MKTF-208

MEMBRANE

Replacing membranes in the
proper information and tools at hand. Please refer to the following instructions when
removing and replacing membrane elements:

WARNING: ALL PRESSURE GAUGES MUST READ ZERO BEFORE

PROCEEDING. BEFORE ATTEMPTING
SYSTEM AND BLEED ALL WATER PRESSURE FROM

1. Remove the end caps from the top of the membrane housings. This is

removing the white snap ring of the membrane

2. Remove the membrane bag

box.

WEAR GLOVES FOR

CONTAMINATE THE MEMBRANE.

3. Cut the bag open as close as possible to the seal at the end of the bag, so the

bag may be re-used if necessary.

4. Make sure that all parts are clean and free fr

permeate tube for nicks or cuts. Replace the O

5. Flow directions should be observed for installation of each element into each

housing. (Figure 4, P

As time progresses, the efficiency of the membrane will be reduced. In general, the salt
rejection does not change significantly until two or three years after installation when
operated on properly pretreated feed water. The permeate flow rate wi
slightly after one year of operation, but can be extended with diligent flushing and
cleaning of the system. A high pH and/or precipitation of hardness can cause
premature loss in rejection.

REPLACING THE MEMBRANE ELEMENT:

WARNING: THE BRINE SEAL MUST BE IN THE SAME POSITION FOR

EACH MEMBRANE ELEMENT HOUSING, SO MARK EACH HOUSING PRIOR TO
REMOVING THE MEMBRANE
THAT PROTRUDES ON ONE SIDE OF THE MEMBRANE AND
FEED SIDE OF THE MEMBRANE

BRANE REMOVAL AND REPLACEMENT

the pressure vessels is an easy process if you have the

proper information and tools at hand. Please refer to the following instructions when
removing and replacing membrane elements:

ALL PRESSURE GAUGES MUST READ ZERO BEFORE

ATTEMPTING, DISCONNECT THE POWER FROM

SYSTEM AND BLEED ALL WATER PRESSURE FROM THE SYSTEM.

Remove the end caps from the top of the membrane housings. This is

snap ring of the membrane housing.

Remove the membrane bag containing the membrane element from the shipping

WEAR GLOVES FOR THE FOLLOWING STEPS IN ORDER

CONTAMINATE THE MEMBRANE.

Cut the bag open as close as possible to the seal at the end of the bag, so the

used if necessary.

sure that all parts are clean and free from dirt. Examine the brine seal

permeate tube for nicks or cuts. Replace the O-rings or brine seal if damaged.

Flow directions should be observed for installation of each element into each

(Figure 4, Page 31)

THE MEMBRANE ELEMENT:

THE BRINE SEAL MUST BE IN THE SAME POSITION FOR

ELEMENT HOUSING, SO MARK EACH HOUSING PRIOR TO

THE MEMBRANE ELEMENTS. THE BRINE SEAL IS A RUBBER SEAL

ON ONE SIDE OF THE MEMBRANE AND IS ALWAYS ON THE
MEMBRANE ELEMENT.

06/12

REPLACEMENT

pressure vessels is an easy process if you have the

proper information and tools at hand. Please refer to the following instructions when

ALL PRESSURE GAUGES MUST READ ZERO BEFORE

POWER FROM THE
SYSTEM.

Remove the end caps from the top of the membrane housings. This is done by

containing the membrane element from the shipping

S IN ORDER NOT TO

Cut the bag open as close as possible to the seal at the end of the bag, so the

om dirt. Examine the brine seal and

rings or brine seal if damaged.

Flow directions should be observed for installation of each element into each

As time progresses, the efficiency of the membrane will be reduced. In general, the salt
rejection does not change significantly until two or three years after installation when
operated on properly pretreated feed water. The permeate flow rate will begin to decline
slightly after one year of operation, but can be extended with diligent flushing and
cleaning of the system. A high pH and/or precipitation of hardness can cause

THE BRINE SEAL MUST BE IN THE SAME POSITION FOR

ELEMENT HOUSING, SO MARK EACH HOUSING PRIOR TO

ELEMENTS. THE BRINE SEAL IS A RUBBER SEAL

IS ALWAYS ON THE