2. We are ProService, The Engineering Company
for Projects Services
ProService is qualified and competent electromechanical
contracting company (HVAC, plumbing and fire fighting)
our sister company TAB for Testing, Commissioning and
Validation
Mai Fathi Gabr
3. 2- ProService Departments
1- Contracting
2- Control (BMS,MCC, Industrial Automation)
3- Facility Management
4- Indoor Air Quality
5- Trading
Mai Fathi Gabr
4. 3- Our products
No. Product Agency Origin
A Balancing Valves.
Denmark
B Air Humidifiers.
Italy
B Air Dehumidifiers. Sweden
C Test Instruments. USA
D VAV Diffuser South Africa
F Air Filters Turkey
Mai Fathi Gabr
5. Is one of the first companies in the field of dynamic
balancing valves in the world with Griswold States of
American company , It Was established in 1945.
Mai Fathi Gabr
6. Dynamic Static
Q = Kv √p
Deal with the change of pressure in the
cycle with the change of area through
the spring movement into Cartridge
Fixed amount of water in Δp
Does not deal with the change of
pressure in the cycle With the stability of
the area consequently be a variable flow
rate Is not compatible with the idea of
balancing valve
Error rate ±5% Error rate ±15%
We don’t need to test and balance and
commission
Just check
Need to test , balance and commission
and need to adjust every valve 3 times to
have flow accuracy
Just need at terminals units
no valve at (branches , riser , main line )
so it cost less valve ,installation time
Need at all terminals , units, branches ,
riser , pump
NO need to design install need to design install
Mai Fathi Gabr
7. Because Frese company specializing characterized in the
dynamic balancing valve by its accuracy and its ongoing
development
Pressure independent control valve (PICV) compined
valve :
1- Thermostatic Modulating Control Valve
Differential Pressure Control Valve
Dynamic Balancing Valve
2- Accurate Flow and Temperature Control
3- Full Stroke Modulation
4- Control Valve authority
Mai Fathi Gabr
9. CAREL is characterized mainly operates in control and it
is manufacturing a complete range of Isothermal and
Adiabatic air humidification systems , It was established
in 1973
Mai Fathi Gabr
10. 1- Isothermal steam humidifier:
The cylinder is filled by means of an electro valve
Galvanized steel electrodes immersed in water are powered
Water acts as an electrical resistance depending on dissolved salts
The electric current heats up the water
Advantages : Antifoam sensor and display
Mai Fathi Gabr
11. 2- Adiabatic Humifog multizone:
a pistons pump to pressurize the water up to 70 bar; special
nozzles produce billions of very small droplets that
spontaneously evaporate, humidifying and cooling the air.
Mai Fathi Gabr
12. DST is one of the world’s leading suppliers of dehumidifiers, with representatives in around
40 countries.
Since 1993, DST has been a subsidiary to the Japanese company Seibu Giken Co Ltd., who
manufactures dehumidifier rotors, VOC rotors, heat wheels etc
We have 2 Techniques
Mai Fathi Gabr
14. Is one of the leading companies in the field of design and
manufacturing of measurement devices , It was established
in 1961, and estimated the union is working with the two
companies ( Alnor and Air flow ) competitors.
TSI application :
1- particle instrument 2- flow instrument
3- fluid mechanics 4- CBRN Defense
5- critical environment ( monitors and controls )
6- occupational health and safety
Mai Fathi Gabr
15. 7- Ventilation 8- contamination
9- Dust
In ceramics and cement factories in sterile areas
Mai Fathi Gabr
16. RICKARD Air is a leading manufacturer for the
Variable Air Volume Diffusers and Air Outlets which
grantee optimum performance in terms of uniform air
distribution and low noise level ,
It was established in 1979
Air conditioning system
1- Constant AV 2- Variable AV
Mai Fathi Gabr
17. Variable Air volume
a. VAV Box b. VAV Diffuser
ROOM AIR
INDUCTION
SUPPLY AIR SUPPLY AIR
CONTROL DISC
Mai Fathi Gabr
