C-השךהקד Tקבימםךםעט

1. Company & Technology Presentation

2. Who is and Why
C-Valves?
 Who and Why C-Valves?
 C-Valves end-user base
 C-Valves technology
 C-Valves applications
 C-Valves advantages
 Technical characteristics
 Sample installations
 Summary of benefits
 Proposed cooperation

3. Who is C-Valves?
C-Valves is a supplier of pressure control and
regulation solutions for water supply systems.
C-Valves was established in 1995 with the
mission to develop a control valve technology
that will eliminate the problems
inherent in conventional control valve systems

4. Why C-Valves?
The bottom line for C-Valves is to assist its
customers in lowering costs mainly by:
 Lowering water loss using pressure
management to minimize leakage
 Lowering system’s life cycle cost by slowing
down system wear and pipe break rate

5. Why C-Valves?
C-Valves applications cover any control valve
application currently in use in the market, but they
are relatively:
More Reliable,
Highly durable for corrosion and cavitation
Simple to operate
Very low on maintenance

6. C-Valves Applications
 On-Off Valves
 Pressure Reducing Valves
 Pressure Sustaining Valves
 Pressure Relief Valves
 Pump Valves
 Altitude Valves
 Dynamic Flow Regulating Valves
 Special & Custom Made Solutions

7. C-Valves End Users
 Public and private Waterworks.
 High rise buildings and industrial plants
 Agricultural water supply systems

8. C-Valves Technology
Globe
Linear Flow Linear Control - A new control concept, which is linear
and parallel to the flow. As opposed to the conventional way,
which is perpendicular to the flow.
C-Valves -M1

9. C-Valves Piston Movement

10. C-Valves Technology

11. C-Valves Technology

12. The Control Trim
Control and piloting using a Trim Manifold.
Changes in Control Trim without opening tubes.
Fast & easy maintenance

13. The Control Trim
 C-Valves 3-Way Pilots:
 Adjustment accuracy and hysteresys
of 20-30 cm (Conventional pilots: 2-3 m)
 Pressure range: 0 to 30 bar
 High functionality under very low pressure
 Extremely fast action

14. Our Valve Selection
KV=90; PN25
Model M3- 2”
Model M3- 3”
M3

15. PN16 PN20
PN30PN25
Model
M1-
DN100
DN150
(4”&6”)
Our Valve Selection
M1

16. Our Valve Selection
DN300/12”
4 x 150
DN250/10”
3 x 150
DN400/16”
6 x 150
DN200/ 8”
2 x 150
MultiValve

17. Multi-Valve
DN200 (8”)
Our Valve Selection

18. Multi-Valve
DN250 (10”)
Our Valve Selection

19. Multi-Valve
DN300 (12”)
Our Valve Selection

20. Multi-Valve DN400 (16”)
Our Valve Selection

21. Hydrodynamic design
Symmetrical passage of Linear Flow Design
for smooth flow
Full function at high flow rates
Low head loss
Surge-free on/off function due to
hydrodynamic structure
Relative Advantages

22. Durability
Valve body made of reinforced nylon or plastic
materials (Plastic ends and pilots in advanced
development)
Mechanical strength
Extremely high cavitation and corrosion
resistance due to special non-corrosive
construction materials
Relative Advantages

23. Piston Valve with double-chamber actuation
One of few really double chamber actuated
valves on market (Can also use external
source)
Very fast, but soft opening
Very fast closing with delayed final stage -
Important for surge free on/off function
Immediate response time while modulating
Relative Advantages

24. Relative Advantages
Control volumes
Others
Most commonly
single-chambered
C-Valves
Double-chambered

25.  The only valve that is Normally Closed by
structure - Not by control loop or command pilot
 Light weight
 Low noise through smooth operation
 Fully functional at near to zero flow
Relative Advantages

26. Relative Advantages
 Accurate and stable regulation for a wide range
of pressures and flow rates
 Capable of reducing pressures at more than
10:1 ratio. This is enabled by our unique 3-way
pilot and the hydrodynamic structure & linear
flow design.

27. Valve Characteristics
C-Valves
C-Valves
delayed
closure
Others
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0 2 4 6 8 10 12 14 16 18 20
Time [seconds]
Closure
Others
8-100 sec.
C-Valves
2-10 sec.
Valve closure

28. KV = 200 KV = 330
0.01
0.1
1
100 1000
m³/h
Bars
Others C-Valves
200 500300 400
Valve Characteristics
Head loss chart
for DN100
4” valve
KV = 435

29. Valve Characteristics
Flow Rate Range On/Off Valves:
 M3 DN50 – from 0 to 80 m3/h, Kv=90
 M3 DN80 – from 0 to 120 m3/h, Kv=90
 M1 DN100 – from 0 to 250 m3/h, Kv=435
 M1 DN150 – from 0 to 550 m3/h, Kv=435
 DN200 Multi-Valve (2xM1) from 0 to 1000 m3/h,Kv=850
 DN250 Multi-Valve (3xM1) from 0 to 1500 m3/h,Kv=1210
 DN300 Multi-Valve (4xM1) from 0 to 2000 m3/h,Kv=1570
 DN400 Multi-Valve (6xM1) from 0 to 3000 m3/h,Kv=2500

30. Valve Characteristics
Do not compare valves DN to DN.
Compare their max. flow rates:
 Max. allowed flow velocity
through the M1=19m/sec
(62 ft/sec). Enables use
of lower diameter M1,
where larger convent-
ional valves were
required for the same
flow rate.

31. Valve Characteristics
C-Valves smart closure profile
4” valve, closure and opening at 650 m3/h
0
100
200
300
400
500
600
700
0 5 10 15 20 25 30
Time
[seconds]Flow rate Upstream head Downstrean head
Flow rate [cu.m/h]
Head [m]
Fast & accurate
function

32. Valve Characteristics
0
50
100
150
200
0 500 1000 1500 2000 2500
Outlet pressure set to 50 m
Flow rate
Inlet pressure change
Downstream pressure regulation Using C-Valve and
3-way pilot
Flow rate
[m3/h
Head [m]
Time
[seconds*(1/100)]

33. Valve Characteristics
Downstream
pressure set
to 50 m
0
20
40
60
80
100
120
140
160
180
200
0 500 1000 1500 2000 2500 3000
Time
[seconds*(1/100)]
Flow rate Downstream pressureUpstream pressure
Flow rate m3/h
Head [m]
Pressure regulation within a wide flow rate range

34. Valve Characteristics
0
20
40
60
80
100
120
0 500 1000 1500 2000 2500
Time
[seconds*(1/10)]Flow rate Upstream pressure Downstream pressure
Flow rate change Upstream pressure change
Flow rate m3/h]
Head [m]
C-Valves quick reaction and stability

35. Valve Characteristics
Pressure Stability, Accuracy
Sutton & East Surrey Water - UK
Former valve C-Valves
C-Valves installation
in S&ESW, UK
Before and After

36. Valve Characteristics
August 14 07
(C-Valves installed)
Upstream
pressure
Down
Stream
pressure
Flow
Pressure Stability, Accuracy
Grantham – Australia
C-Valve replaces a conventional valve due to non stable pressure
Before and After
C-Valves installed in
Grantham Australia

37. Valve Characteristics

38. Valve Characteristics
Loss Saving: DMA 1 – 26%
DMA 2 – 43%

39. Valve Characteristics
6”16.019.045-7580-90
4”12.515.522-3742-45
PN-16PN-25PN-16PN-25
C-ValvesOthers
Lightweight [kg]

40. Sample Installations
Pressure-Reducing / Sustaining Valve
in Italy

41. Sample Installations
Mexico - Morala
Quick Relief
valve in
Mexico

42. Sample Installations
Quick Relief
Multi Valves
DN-200 at
Hakoren,
Sewage
treatment
plant, Israel

43. Sample Installations
-Other Electric Float Valve
-- Drop the inlet pressure when
open, high flow
-- Create water hammer when
close, zero flow
-- Need electricity
-- Need float installation
Altitude Valve
-- Maintain accurate pool level
(20 cm)
-- Do not disturb the upstream
pressure
-- Electricity only for backup
-- No need in pool installation
-- reliable
-- high cavitations resistance
C-Valve
0
10
20
30
40
50
60
70
80
13/12/2004
14:02:20
12/12/2004
15:02:12
11/12/2004
15:19:50
10/12/2004
16:03:12
09/12/2004
18:34:25
08/12/2004
18:18:59
07/12/2004
20:04:23
06/12/2004
19:03:53
05/12/2004
19:04:34
04/12/2004
19:48:12
03/12/2004
20:18:38
02/12/2004
19:48:00
01/12/2004
20:48:08
30/11/2004
19:33:36
29/11/2004
19:02:36
28/11/2004
18:31:13
day
meter/m3
/h
altitude flow
-Flow 1-65 m3/h
-Level 1.9-2 meter
Precision
Regulation

44. Sample Installations
Four Surge
Anticipating
Valves DN150,
Turkey

45. Sample Installations
MultiValve
DN200 with plug
instead of valve
for possible
future flow rate
increase.
Possible
Enlargement
to DN250
Grantham,
Australia

46. Sample Installations
The C-Valve has been selected by Sydney Water for its
pressure management program consisting of
over 300 valves
 After initial trial of six valves, SWC have selected C-
Valves for Stage 1 of their pressure reduction program
 Over 50 valves installed
to date
 Second tranche ordered for
additional 20 valves

47. Sample Installations
SWC Design criteria
 Compact design and modular
construction meant servicing can be
done outside the pit and common
spares can be employed
 Multivalve design enables by pass to
be incorporated in the valve manifold
to eliminate expensive bypass pipe
work
• Important for SWC since installing
in established suburbs –
construction impact and
remediation costs a key concern for
program design
 Low and high flow capability
of the valve simplifies the
design process – they could
standardise on the DN150 valve
body for all applications

48. Sample Installations
 Mt. Crosby reservoir – Ipswich branch
line
 Booster pumps installed on main line
back to Brisbane
• Pressure and flow can increase from 30
l/s at 30m head up to 800 l/s at 55m
head
• PRV bank must respond from fully open
within 1.5 seconds to protect Ipswich
cast iron pipes from excess pressure.
Max downstream is 45m
• C-Valve is the only valve on the market
that could meet the specification of the
design engineers
 Valve successfully commissioned in May
2007
Brisbane Water, Australia

49. Benefits Summary
 Fast, precise, stable, energy saving valve
 Dynamic pressure & flow control on site & from
command center to reduce real losses
 Less system wear through stabilizing operating
conditions in drastically changing consumption
 Preserving & extending water system’s life
expectancy & functionality for reduced costs.
 Bottom line - Saving money, Saving Water

50. C-Valves partners
C-Valves a company with vision and innovative
technology needs capable alliance partners and
distributors, well established in their respective
target markets to jointly penetrate world markets
by presenting end users with complete Pressure
Management solutions.

51. C-Valves partners
 Distributors of solutions for water supply systems.
 Alliance partners, such as:
• Producers of synergetic solutions.
• System planers and integrators
(Controller + PRV + Communication).
• Performance analysis companies.
All wishing to complete their scope of supply
offered to their end users.

52. Thank you!
C-Valves Ltd.
Tel: +972-72-212-5080
Fax: +972-72-212-5081
E-mail: info@cvalves.com
Website: www.cvalves.com