The UK'S best selling choice in its class - Stourflex
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H E AT I N G A N D CO O L I N G
S I D E ST R E A M F I LT R AT I O N
T h e U K ’ S b e s t s e l l i n g c h o i ce i n i t s c l a s s
O
S U P E R I O R P R OT E C T I O N F O R H VAC SYST E M S U P TO 9 5 C
WINNER
Commercial
Building Services
Product innovation Product of the Year
of the year
w w w.V E XO i n t . c o m
How neglecting your hydronic thermal fluid
can affect your bottom line
Your investment reduces as dirty system water
slowly erodes your OPEX and reputation.
YOUR INVESTMENT
Erosion corrosion
Reduction in efficacy of inhibitor
Harbouring bacteria proliferation
PROGRESSIVELY LESS ROI
Settlement of sediment
Non-repeatable commissioning readings
Delayed project handovers
Landlord losing tenants could lead to litigation
Efficiency losses
Lifecycle losses
Damage to reputation
WHAT’S LEFT OF YOUR INVESTMENT
Page 2
VEXO X-POT (Std) Ver. 1 Rev 3 16/06/2021
Why do you need superior filtration
installed on your closed loop system?
The problem with dirty water
Water is the main means of closed system 1. Scale formation
temperature distribution. It affects every single
piece of equipment and every single person in
2. Corrosion
the spaces that you manage. Wherever there is
closed loop system water four problems will 3. Microbial growth
occur: scale formation, corrosion, fouling and
microbial growth.
4. Fouling & sludge
At the heart of your facility
is a perfectly good heating
or cooling system. Potential dangers hiding
It loses its energy in closed system water.
and transfer capacity
to a fouled and dirty
circulatory system.
LIMESCALE
METALLIC
SLUDGE
This leads to
BACTERIAL
BIOFILM bad distribution,
breakdowns,
cold spots and
energy waste.
You could be losing over 10% energy What dirty system water
VEXO Proposal Doc Ver. 1.0 01/06/2020
from dirty system water alone! can do if left untreated.
Page 3
VEXO X-POT (Std) Ver. 1 Rev 3 16/06/2021
What is the VEXO X-POT?
The VEXO X-POT is the UK leader in closed loop
side stream filtration.
Industry Leading Multi-Layered Filtration
ALL IN ONE
.
MAGNETIC DOSING DIRT & AIR CARTRIDGE & BAG VEXO X-POT
FILTERS POTS SEPARATORS FILTERS
Magnetite Only doses Particle size Blocks due to THE ALL-IN-ONE
removal only additives limitations magnetite sludge SOLUTION
The X-POT combines most current system filtration units into
one easy-install, easy-service, BSRIA acknowledged water
conditioning product.
Higher System performance at a Improved system life cycle resulting
smaller budget in CAPEX savings, reductions in
reactive maintenance and
Greater reliability with reduced operational cost savings.
critical down time, increased heat
distribution, fewer call outs and Provides protection for new
happier tenants. systems and improved system
efficiency for aged systems;
Retro-fit all-in-one Solution resulting in less flushing, a
reduction in CO2 and a more
Multi-Functional Design environmentally friendly facility.
Page 4
VEXO X-POT (Std) Ver. 1 Rev 3 16/06/2021
Does the VEXO X-POT really work?
Absolutely. We have independently proven
3.5% energy saving after just 1 week, and an additional
5-10% savings with added X-PO10 Inhibitor!
"The X-POT Side Stream "Results suggest gas bill
filtration system reduced reductions of up to 10% are
energy consumption by 3.5% possible whilst prolonging the
within the first 7 days of use" life cycle of existing heating
systems."
Johnathan Cripps, MSc Dissertation:
Low Energy Building Services Engineering Dr Rayner Mayer,
(Effects of Corrosion on Heat Transfer Trials of VEXO X-PO10 Inhibitor
Efficiency within a Heating System) Sciotech Projects
Loughborough University University of Reading
The results speak for themselves. With thousands of X-POT's
installed across the world, all with 100% positive client feedback.
Below are just a few of our recent examples.
Page 5
VEXO X-POT (Std) Ver. 1 Rev 3 16/06/2021
Side stream filtration for small to
medium commercial systems
® 5 YEAR
*Extended to 8 years
if used with VEXO Inhibitor
and supplied parts.
Side stream filtration including
a magnetic filter, cartridge filter,
air and dirt separator and dosing
unit for small to medium
commercial systems.
Max working pressure:
4 Bar
Max system volume:
34,560 litres
Flow rate:
Up to 24 l/m
Pipe connection:
1/2" BSP
Filtration rate:
TUNDISH
Down to 0.5 micron
AAV
1/ " 1/ "
2 1/ " 2
1/ " 2
2
NRV MAIN 285
VENT 225
12,5
190
630
107
220
100
75
FLOW
DIRTY
135
FLOW
DIRTY
156
90
12,5
TUNDISH
175
95
MAIN
190
1/ " AAV
2 VENT
LEFT /
DIRTY RIGHT or
DRAIN and/or clean RTN FLOW BOTTOM
DRAIN and/or clean RTN Conn.
Side View Front View Plan View
Page 6
VEXO X-POT (Std) Ver. 1 Rev 3 16/06/2021
Side stream filtration for medium
to large commercial systems
® 5 YEAR
*Extended to 8 years
if used with VEXO Inhibitor
and supplied parts.
Side stream filtration including
a magnetic filter, cartridge
filter, air and dirt separator
and dosing unit for medium
to large commercial systems.
Max working pressure:
7 Bar
Max system volume:
86,400 litres
Flow rate:
Up to 60 l/m
Pipe connection:
1" BSP
Filtration rate:
TUNDISH
TUNDISH
Down to 0.5 micron
1"
AAV
AAV
1/ "
2 NRV NRV
MAIN
915
VENT MAIN
VENT
DIRTY
75
FLOW
LEFT HAND 460
1" DIRTY FLOW 260
DIRTY 225
FLOW
340
180
206
175
TUNDISH
1/ "
2 1"
40
1" PLUG DIRTY
CLEAN
CLEAN RETURN FLOW
RETURN
130
260
MAIN AAV
VENT
1" DRAIN
DRAIN
Side View Front View Plan View
Page 7
VEXO X-POT (Std) Ver. 1 Rev 3 16/06/2021
Side stream filtration for large to
very large commercial systems
5 YEAR
*Extended to 8 years
if used with VEXO Inhibitor
and supplied parts.
Side stream filtration including a magnetic filter,
bag filter, air and dirt separator and dosing
unit for large to very large commercial systems.
Max working pressure: 16Bar
Max system volume: 302,400 litres
Flow rate: Up to 210 l/m
Pipe connection: 2" BSP
Filtration rate: Down to 1 micron
TUNDISH TUNDISH
1" 1"
AAV AAV
1/ "
2
NRV MAIN NRV
1/ "
2 VENT
135
2"
PG 2" DIRTY DIRTY
FLOW FLOW
490 PG
195
RETURN
1460
430
CLEAN
430
WALL BRACKET
870
2"
DIRTY 900 206
FLOW
MAIN
300
VENT
PG
DRAIN
2"
DRAIN
CLEAN
RETURN
135
1/ "
2 2" 1/ "
2
Plan View Vexo X-Pot Brochure V2.0 Side View Front View
Page 8
VEXO X-POT (Std) Ver. 1 Rev 3 16/06/2021
Made to order filtration for
extreme high pressure or flow
5 YEAR
*Extended to 8 years
if used with VEXO Inhibitor
and supplied parts.
Max working pressure: 30Bar
Max system volume: 302,400 litres
Flow rate: Up to 210 l/m
Pipe connection: 2" BSP
Filtration rate: Down to 1 micron
Side stream filtration including a magnetic filter,
bag filter, air and dirt separator and dosing unit
for very large commercial systems.
HF 5 YEAR
HP
*Extended to 8 years
if used with VEXO Inhibitor
and supplied parts.
Max working pressure: 10 or 30 Bar options
Max system volume: 2,592,000 litres
Flow rate: Up to 1800 l/m
Pipe connection: 6" PN 10 or 6" PN 30
Filtration rate: Down to 1 micron.
Side stream filtration including a magnetic filter,
bag filter, air and dirt separator and dosing unit
for extremely high pressure, high flow commercial systems.
Page 9
VEXO X-POT (Std) Ver. 1 Rev 3 16/06/2021
Side stream filtration with integrated
pump, alarm and BMS compatibility
2 YEAR
*Extended to 3 years
if used with VEXO Inhibitor
and supplied parts.
Max working pressure: 10 Bar
Max system volume: 86,400 litres
Flow rate: 60L/min (1.0L/s)
Pipe connection: 1" BSP
Filtration rate: Down to 0.5 micron
VEXO™ X-POT6+ Side Stream Filtration
& Dosing Unit with integrated pump,
fault alarm and Enhanced BMS Compatibility
for medium to large commercial systems.
2 YEAR
*Extended to 3 years
if used with VEXO Inhibitor
and supplied parts.
Max working pressure: 16 Bar
Max system volume: 302,400 litres
Flow rate: 60-210L/min (1.0-3.50L/s)
Pipe connection: 2" BSP
Filtration rate: Down to 1 micron.
VEXO™ X-POT XP+ Side Stream Filtration
& Dosing Unit with integrated pump and
BMS Compatibility for large to very large
commercial systems.
Page 10
VEXO X-POT (Std) Ver. 1 Rev 3 16/06/2021Indicative X-POT Side Stream Filtration
Installations
Installation The X-POT provides a number of installation
example
X-POT
IV
solutions. These examples are INDICATIVE
AAV
NRV ONLY. If your system cannot accommodate
IV
any of these scenarios due to complexity,
IV
please contact the VEXO Technical Team:
24
Hours
CLEAN
RETURN
IV
PICV IV
DIRTY
FLOW +44 (0)1767 500 150 / technical@vexoint.com
1
PD
MONITOR
2 DRAIN
System
HEAT IV IV
SYSTEM 1
SOURCE
Volume STR
FLOW
PICV Which connections
SYSTEM
PUMP
(Not supplied by VEXO)
and X-POT?
PRESSURE
INDEPENDENT The size of the connections
CONTROL
VALVE to the X-POT is determined
by the total system volume
SYSTEM being circulated through
RETURN
STR
the X-POT in a 24 Hour
period.
SYSTEM VOLUME
l/sec
Indicative system placement 2
86,400sec
0.083 - 0.4 I/s = 1/2" Conn.
Packaged Differential 0.4 - 0.6 l/s = 3/4" Conn.
ISOLATION VALVE Pressure Monitor 0.6 - 1.0 l/s = 1" Conn.
NON RETURN VALVE
1.0 - 1.2 l/s = 1 1/4" Conn.
STRAINER TWIN PUMP 1.2 - 2.1 l/s = 1 1/2" Conn.
X-POT
AUTO AIR VENT
INSTALLATION 2.1 - 3.5 l/s = 2" Conn.
PRESSURE GAUGE
TEMPERATURE GAUGE EXAMPLES
PRESSURE RELEASE VALVE Working Pressure : 3Bar
System volume :
FLEX CONNECTION 22,500Litres = 0.26 l/sec
PUMP
THE X-POT Chosen Vessel : X-POT Compact
SHOULD BE Connection Size :1/2”
TM
VEXO PD-MONITOR FITTED ON
THE
PRESSURE INDEPENDENT Working Pressure : 10Bar
CONTROL VALVE SECONDARY System volume :
COMMISSIONING VALVE HEATING 90,000Litres = 1.04 l/sec
3 PORT VALVE
CIRCUIT TO Chosen Vessel : X-POT XP
ENSURE BULK Connection Size : 1 1/4"
WATER
ZONE/MULTIPLE
PUMP X-POT
SYSTEM
INSTALLATION PROTECTION SINGLE PUMP
X-POT
INSTALLATION
Page 11
VEXO X-POT (Std) Ver. 1 Rev 3 16/06/2021Upgrade your X-POT with a simple and
adaptive monitor for system flow issues
1 YEAR
A packaged, wall mounted and factory tested
differential pressure monitoring unit
incorporating controller, two pressure
transducers, 240V ac mains cable and BMS
capability.
Remote alarm for blocked X-POT filters
10 Bar & 30 Bar Max. working pressure options
Can be linked to BMS
Audible alarm and flashing beacon
Simple, adaptive monitor for system flow issues
Compatible with all hybrid applications.
PD-MONITOR
PD-MONITOR
FILTRATION CONTROLLER
AIR HANDLING PLANT
PLANT
CONTROLLER DISPLAY
BEACON
ON/
DISPLAY OFF
BEACON
ON/
OFF
PD-MONITOR PD-MONITOR
CONTROLLER CONTROLLER
DISPLAY DISPLAY
BEACON BEACON
ON/ ON/
OFF OFF
SYSTEM PUMPS
PD-MONITOR
CONTROLLER
BEACON
DISPLAY
ON/
HEAT EXCHANGER
OFF
PD-Monitor can be used for various hybrid applications
(i.e. plate heat exchangers, AHU coils and process equipment monitoring).
Page 12
VEXO X-POT (Std) Ver. 1 Rev 3 16/06/2021The X-POT Compliance Packs
The X-POT Compliance Pack completes your X-POT
installation in accordance with Best Practise
BSRIA BG29/50 Guidance.
The X-POT Compliance Pack features our pre-settable PICV for simple and
accurate commissioning, insulation jacket for our PICV to reduce thermal
loss and our PD-Monitor to accurately track your X-POT filter status, so
your system operates at its full potential.
BSRIA BG29/2020 recommends ‘5% of the circulating
water should be diverted through the side stream filter'
and 'Filters should be easily maintainable and fitted
with a differential pressure indicator or BMS sensor'.
X-POT COMPLIANCE PACK VARIATIONS & ORDER CODES
V-XCOMP(CP)PACK V-XPXP-LF(CP)PACK
X-POT Compact X-POT XP HF
DN20 DN50 Flanged
V-XPOT6(CP)PACK
X-POT6
DN32
V-XPXP-LF(CP)PACK
X-POT XP LF
DN50
Each Compliance Pack contains:
1 off Pre-Settable PICV
(X-POT Compact - DN20) (X-POT6 - DN32)
(X-POT XP LF - DN50) (X-POT XP HF - DN50 Flanged)
1 off Insulation Jacket
1 off Vexo PD-Monitor 0-30 Bar Modbus
Page 13
VEXO X-POT (Std) Ver. 1 Rev 3 16/06/2021X-POT fine filtration
Our range of superior quality filters provides
top class filtration, surpassing UK and USA
Industry Standards.
MICRON SIZES
BSRIA BG29/2020 Pre-commission
Cartridge filters 'Cleaning of Pipe Work Systems' recommends a 5
0.5, 5, 20 & 50
micron filtration rate. The X-POT utilizes industry
0.5 Bag filters
1, 5, 25, 50 & 100 leading 0.5 micron Cartridge Filters (10x Finer) and
MICRON
1 micron Bag Filters (5x Finer), capturing more
1
MICRON
debris resulting in greater energy savings and
prolonged life cycle realisation.
Vexo's Industry leading Side Stream Filtration
Range is fully compliant with BS EN ISO 9001:2015
Flow DP of X-POT Compact & X-POT6 Cartridge Filters
including Magnet Grate
The water samples below were taken ½" Conns 3/4" Conns 1" Conns
from a 2 year old LTHW Heating 800
X-POT6
700
System. The system contained
Pressure Drop (mbar)
X-POT Compact
600
a dosing pot (closed off), D&A 500
Separator and no trace of water 400
treatment chemicals. The system 300
200
contained corrosion debris. After 100
installing an X-POT and X-PO10
0 10 20 30 40 50 60
inhibitor, the results speak for Water Flow Rate (L/m)
0.5µ Filter 5µ Filter
themselves. Simple and very effective! 20µ Filter 50µ Filter
NOTE - Choice of X-POT is dependent upon system working pressure and system volume.
Dirty filter state can be estimated by multiplying the clean filter state by a factor of 2.
Flow DP of X-Pot XP Bag Filters including Magnet Grate
CONNECTION SIZES
X-POT filtered system water
Existing dirty system water
½" 3/4" 1" 1 1/4 " 1½" 2"
1000
900
800
Pressure Drop (mbar)
BEFORE
700
AFTER
600
500
400
300
200
100
0 20 40 60 80 100 120 140 160 180 200 220
Water Flow Rate (L/m)
1µ Filter 5µ Filter 25µ Filter 50 &100µ Filter
NOTE - Choice of X-POT is dependent upon system working pressure and system volume.
Dirty filter state can be estimated by multiplying the clean filter state by a factor of 2.
Page 14
VEXO X-POT (Std) Ver. 1 Rev 3 16/06/2021The X-POT and ancillary order codes
Order your X-POT, filter or PD-Monitor below by quoting the Stourflex code
(shown in green text) and quantity of units. VEXO order codes show in red.
(Contact details on back cover)
X-POT ORDER CODES REPLACEMENT FILTERS ORDER CODES
PD-MONITOR CARTRIDGE FILTERS CARTRIDGE FILTERS
0-10Bar Unit VXXPPDM X-POT COMPACT, X-POT6 X-POT COMPACT, X-POT6
0-30Bar Unit VX-PDMONITOR 030 & X-POT6+ & X-POT6+
0-30 Bar plus Modbus VX-PDMONITOR 030MB (Box of 4) (Box of 20)
50µ VXXPCARTRIDGE50 50µ VX-CFILTERS(20)50MIC
All orders should include VXXPCARTRIDGE20 VX-CFILTERS(20)20MIC
MAIN UNITS starter pack for installation
20µ
5µ VXXPCARTRIDGE5
20µ
5µ VX-CFILTERS(20)5MIC
X-POT Compact VXXPC 0.5µ VX-CFILTERS(4)0.5MIC 0.5µ VX-CFILTERS(20)0.5MIC
X-POT Compact Starter VXXPSTARTERPACKC
Pack
BAG FILTERS X-POT XP, X-POT XP+, X-POT HFHP
X-POT6 VXXP6 (Box of 5) (Box of 40)
X-POT 6 Starter Pack VXXPSTARTERPACK6 100µ V-XBFILTERS(5)100MIC 100µ VXBFILTERS(40)100MIC
50µ V-XBFILTERS(5)50MIC 50µ V-XBFILTERS(40)50MIC
25µ V-XBFILTERS(5)25MIC 25µ V-XBFILTERS(40)25MIC
X-POT XP VXXPXP
X-POT XP Starter Pack VXXPSTARTERPACKXP 5µ V-X BFILTERS(5)5MIC 5µ V-X BFILTERS(40)5MIC
1µ V-X BFILTERS(5)1MIC 1µ V-X BFILTERS(40)1MIC
Essential for Installation (2 of 2 product)
®
Remember to include your X-POT
Starter Pack in your order
® ® ®
Page 15
VEXO X-POT (Std) Ver. 1 Rev 3 16/06/2021100% Positive client feedback
Here are some of the recent messages we
received from our clients in various project
fields.
“There was a constant stream of “Due to the multiple benefits
complaints from residents about heating within one unit, Bmech have now
issues. The X-POT has been life made it compulsory to install an
changing. We have been able to get the X-POT to all future commercial
best value in terms of temperatures and boiler installs and replacements.”
efficiency.”
– Bmech Energy Efficient Engineering
– Christopher Collins, Abbeyfield Care Home
“A number of X-POT units are currently in operation in sites in London. Further
projects where we will be looking to specify the VEXO equipment in a 42 storey
hotel and private residences development. Our team would have no hesitation in
recommending the VEXO X-POT range and have since advised our colleagues in
our sister teams of the benefits that VEXO equipment have to offer in what has
historically been a difficult and un-engineered aspect of hydraulic design in
building services systems.”
– Ashley Nicholson Associate Director, WSP Consulting engineers
“Since adding X-P010 to our central heating “Various costly MRI
system, the conversion efficiency from gas to heat failures, and warranty
output has increased from 83 to 90% and our 50 voids caused by blocked
year old radiators no longer need bleeding. In plate heat exchanger
addition the life of our aluminium heat exchanger cleared up immediately
has increased from 2 years to more than 8 years upon installing an X-POT”
because corrosion has been effectively stopped.”
– Maine General Hospital, USA
–Dr Rayner Mayer, Reading University
Page 16
VEXO X-POT (Std) Ver. 1 Rev 3 16/06/2021With the correct additives, X-POTs provide
full, non-flush cleansing for old systems
only
MAXIMISE with
YOUR
X-POT
8 YEAR 0.36%
Use 3 months in advance v/v
of strip-out to clean an old system
and protect new components
against legacy sludge
3 Years extra warranty Additives that go further
on your X-POT by treating more water
at lower concentrations
Gentle cleaning
All you need of old system
for easy components
treatment
and testing
Low hazard, No need to flush
environmentally your system
friendly formula Energy Savings Trust
and NSF endorsements to get rid of sludge
for X-PO10
Page 17
VEXO X-POT (Std) Ver. 1 Rev 3 16/06/2021The UK’s No. 1 brand for closed loop
water treatment and conditioning
X-POT and X-PO are registered trade marks of VEXO International (UK) Ltd.
Available from your local STOURFLEX branch
w w w.V E XO i n t .co m
Head Office: 6 The Granary Building, Millow Hall Farm, Millow, Biggleswade, Bedfordshire SG18 8RH.
Tel: 01767 500 150You can also read
