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Cimberio Cim 790 Technical Data Sheet

Cimberio Cim 790 Technical Data Sheet

Automatic flow balancing valve

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TECHNICAL DATA SHEET
AUTOMATIC FLOW
BALANCING VALVE
790
PN 25
Main features:
Technical data:
Approved by:
Cav. Uff. Giacomo Cimberio S.p.A.
Cim 790 is used for balancing the flow in cooling, heating and domestic water systems.
Cim 790 is an automatic balancing valve with following features:
• Constant flow regardless system pressure fluctuations;
• System balancing is assured automatically, even under fluctuating pressure condi-
tions;
• Automatic balancing is achieved by means of cartridges that provide constant flow
within a fixed range of differential pressures;
• The self-cleaning cartridge design makes very difficult for any particles to accumulate
and compromise the accuracy of the valve.
It is supplied with internal thread.
It is made of "CR" brass ("CR" - Corrosion Resistant).
This article is made in compliance with the quality management requirements of ISO
9001:2008 standard.
All articles are tested according to the EN 12266-1:2003 standard.
It can be used in a wide variety of sectors: heating, air conditioning, water, sanitary systems
and generally with any non corrosive liquid.
Max. static working pressure
Max. flow temperature
Min. temperature
Fluids:
Material of parts in contact with water:
Materials:
O-rings:
Threads:
technological solutions
25 bar
120 °C
-20°C
Water and Glycol
Valve body;
Cartridge, etc.
"CR"Brass (EN 12165-CW602N-M)
EPDM Perox
ISO 228
1

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Summary of Contents for Cimberio Cim 790

  • Page 1 BALANCING VALVE PN 25 Main features: Cim 790 is used for balancing the flow in cooling, heating and domestic water systems. Cim 790 is an automatic balancing valve with following features: • Constant flow regardless system pressure fluctuations; • System balancing is assured automatically, even under fluctuating pressure condi- tions;...
  • Page 2 674 ÷ 11355 2.97 ÷ 50.00 G. 2” 0.187 ÷ 3.15 674 ÷ 11355 2.97 ÷ 50.00 Cim 790/2P - Automatic balancing valve - PN 25 - “CR” Brass - without test points* Flow rate range Material Thread (l/s) (l/h) (GPM) G.
  • Page 3 8. Red binder point Installation procedure: Before installation of Cim 790, check that inside the valve and the pipes there are no foreign matters which might damage the tightness of the valve. Burr pipe connections after having threaded them and distribute the sealing material on pipe threads only and not on valve threads.
  • Page 4 Typical installations: Cim 790 is suitable for constant volume system, where diverting or mixing valves are in- stalled as fancoil control. Below a typical installation with a diverting valve: in each moment the flow rate will result constant and there will not be extra-flow due to the pressure fluc- tuations introduced by the hidraulic shortcircuit that would be created when the flow goes across the by-pass.
  • Page 5 Kv, in metric system represents the flow in m /h of water at the temperature of 15.5°C (density =998 kg/m ) which causes a pressure drop of 1 bar. In the USA flow coefficient is called Cv (Kv = 0.865 Cv). Cav. Uff. Giacomo Cimberio S.p.A.
  • Page 6 Δ p Available pressure for the riser tion. Using a Cim 790 DN32, it is possible to select from the list of the installable cartridges the closest value of nominal flow rate to the required one. It is possible to install the cartridge CA3156 with nominal flow rate of 0.886 l/s (the error is SUGGESTED VALUES AND TIPS: less than 2.5 %).
  • Page 7: Measurement Conversion Chart

    0,0000164 , cubic metres cubic inches 16,38706 , cubic centimetres DIVIDE BY TO OBTAIN FROM cubic feet 28,31685 l, litres gallons 3,875412 l, litres Pressure-temperature ratings: DIVIDE BY TO OBTAIN FROM [lbf/in ] [bar] Cav. Uff. Giacomo Cimberio S.p.A.
  • Page 8 CA2092H 0.493 1774 7.81 3.62 CA2094 CA2094H 0.509 1833 8.07 3.74 CA2099 CA2099H 0.578 2080 9.16 4.16 CA2103 CA2103H 0.625 2251 9.91 4.41 CA2106 CA2106H 0.644 2319 10.21 4.46 CA2109 CA2109H 0.680 2448 10.78 4.63 Cav. Uff. Giacomo Cimberio S.p.A.
  • Page 9 CA4229H 2.523 9085 40.00 15.58 CA4235 CA4235H 2.650 9540 42.00 15.90 CA4241 CA4241H 2.776 9990 44.00 16.21 CA4248 CA4248H 2.902 10445 46.00 16.51 CA4250 CA4250H 3.028 10900 48.00 16.82 CA4262 CA4262H 3.154 11355 50.00 17.12 Cav. Uff. Giacomo Cimberio S.p.A.
  • Page 10 TECHNICAL DATA SHEET Main dimensions: Cim 790 Grms. 1500 1565 1670 11.5 12.5 14.5 14.5 16.8 16.8 21.1 CA1150÷CA2109 CA3073÷CA4262 Cav. Uff. Giacomo Cimberio S.p.A.
  • Page 11: Maintenance

    If flow rate has to be changed, proceed as above by replacing the installed cartridge with the one corresponding to the required flow rate. The features of different types of cartridge are available in the prevoius tables. Cav. Uff. Giacomo Cimberio S.p.A.
  • Page 12 : c i m b e r i o s k 1 , c i m b e r i o s k 2 info@cimberio.it www.cimberio.com © Copyright - Cav. Uff. GIACOMO CIMBERIO S.p.A. - All rights reserved. Tutti i diritti riservati. IMR 562637 FM 01820...

This manual is also suitable for:

Cim 790/2pCim 790b