3776B FLANGED PRESSURE INDEPENDENT CONTROL VALVE (P.I.C.V.) PN 16 TECHNICAL DATA SHEET. Main features:

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1 FLANGED PRESSURE INDEPENDENT CONTROL VALVE (P.I.C.V.) PN B Main features: Technical data: Cim 3776B is used for balancing the flow in cooling, heating and domestic water systems. Cim 3776B is an automatic balancing valve with following features: Easy required flow rate selection; Automatic balancing in the event of fluctuating pressure conditions in system branches; Flow rate modulation; Flexibility if the system is modified after the first installation; Reduction of balancing costs, improved energy saving and high environmental comfort; It is supplied with flanged ends. It is made of cast iron. This article is made in compliance with the quality management requirements of ISO 9001 standard. All articles are tested according to the EN :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 16 bar Max. differential pressure 4 bar (400 kpa) Max. flow temperature 120 C Min. temperature -20 C Fluids: Water and Glycol Material of parts in contact with water: Valve body; Shutter, etc. Materials: EN GJL 250; Membrane: EPDM Flanges: EN1092 PN16; Face to face dimension standard: EN 558-1/1. 1 Rev.00 del 11/2016

2 Models: Cim 3776B - Pressure independent control valve - PN 16 - Cast Iron Flow rate range DN Material (l/s) (m 3 /h) (GPM) Technical code DA DA Cast Iron EN GJL DA DA DA Actuator: Cim 3776B P.I.C.V. is designed to be upgraded with different type of actuators to open, close and modulate the valve on circuit. DN Different types of electric actuator are available, as follows: EMV213/145: operating voltage 24 V AC/DC V DC control signal and 3-position control signal; EMV213/147: operating voltage 230 V AC - 3-position control signal; DN Two types of electric actuator are available, as follows: EMV213/148: operating voltage 24 V AC/DC V DC control signal and 3-position control signal; EMV213/150: operating voltage 230 V AC - 3-position control signal; Cim 3776B can be updated with manual gear Cim 920/3776B. 2

3 Model EMV213/145 EMV213/147 Technical code RC RC Voltage 24 V AC ± 20% 24 V DC ± 20% 24 V AC ± 20% 24 V DC ± 20% 230 V AC ± 15% Control 0-10 V, R i >100 kω 3 positions 3 positions Frequency 50/60 Hz 50/60 Hz 50 Hz Feedback signal 0-10 V, load >10 kω 0-10 V, load >10 kω - Power 4.8 W VA 4.8 W VA 2.0 W VA Closing and opening times 60/120 s 60/120 s 120 s Degree/Class of protection IP 54 IP 54 IP 54 Angle of rotation Max 95 Max 95 Max 95 Actuating torque 10 Nm 10 Nm 10 Nm Cable length 1.2 m 1.2 m 1.2 m Model EMV213/148 EMV213/150 Technical code RC RC111 Voltage 24 V AC ± 20% 24 V DC ± 20% 24 V AC ± 20% 24 V DC ± 20% 230 V AC ± 15% Control 0-10 V, R i >100 kω 3 positions 3 positions Frequency 50/60 Hz 50/60 Hz 50 Hz Feedback signal 0-10 V, load >10 kω 0-10 V, load >10 kω - Power 2.4 W VA 2.4 W VA 2.9 W VA Closing and opening times 60/120 s 60/120 s 12 Degree/Class of protection IP 54 IP 54 IP 54 Actuator stroke Max 95 Max 95 Max 95 Actuating torque 15 Nm 15 Nm 18 Nm Cable length 1.2 m 1.2 m 1.2 m S Model 920/3776B Technical code RC

4 Cross section: n n x x V 1. Body 2. Cap 3. Ring nut 4. 31Housing 5. Spring housing 6. Spring d d 7. Sthutter 8. Shutter box 9. Compensating cylinder 10. Plate 11. Antifriction ring 12. Shutter Stem 13.Membrane Stem 14. Guide Bush 15. Antifriction ring 16. Nut 17. By-pass shutter 18. By-pass spring 19. By-pass plug 20. Rotochamber Support plate 22. Support B B plate 23.Sping pin ISO 8752 W W 24. Plug 25. By-pass screw 26. O-Ring 27. Binder point 28. Ball valve MF 1/4 V C C F F 29 ISO5211 F F P P Z Z Z1 Z1 R 29. Fittings 30. Copper pipe 31. Actuator stand 32. Stem 33. Retaining ring DIN Washer 35. Dowel pin ISO 2338-B 36. Overtorque preventing spring 37. Stem 38. Sliding washer 39. Spacer 40. Bushing 41. Disc seat 42. Overpressure relief shutter 43. Overpressure relief spring 44. Cover DN100 Cover 45. Disc 46. Pin 47. Bolts and nuts 48. Electric actuator 49. Electric actuator support 51. Spacer 4 R H Q H Q H1 H J J G G Y Y K K A A L L M M rev rev

5 Installation procedure: OK NO Before installation of Cim 3776B, check that inside the valve and the pipes there are no foreign matters which might damage the tightness of the valve. Cim 3776 shall be installed to the flanges of the pipe perfectly aligned with its flanges, by assuring that coupled parts will not suffer any stress. The valve shall not be used as anchor for hanging pipes, rather it is the pipe that shall support the valve itself. Make sure to true up the tightening gaskets of the flanges before tightening the bolts. Pay attention to any welding procedure carried out in the installation, for this could cause high temperatures exceeding the working limits of the valve. Pipes should be equipped with thermal expansion joint. Use gasket suitable for valve DN, PN, and working conditions. We recommend to use gasket conforming to standards: EN DIN (former DIN 2690), suitable for raised face PN16 flanges according to: EN ISO DIN2526 form C - UNI Pay attention to gasket placement: gasket must not disturb the flow. The lower part of valve body contains compressed spings. DO NOT OPEN. WARNING DO NOT OPEN COMPRESSED SPRING Typical installations: Cim 3776B is suitable for variable volume system to control fan coil flow rate directly. Below a typical installation: in each moment the flow rate is the required one and there will be no extra-flow due to the pressure fluctuations. Controller LOAD: Power (kw) Differential temperature ( C) 5

6 Balancing: Valve can regulate a wide flow rate range. The flow regulation is done by means of a triple offset butterfly valve that assure low operating torque and accurate regulation. The disc shape determines the regulation characteristic: linear (standard) or equipercentage (on request). Design includes specific features to avoid damages to the internal component and the actuator in case of water hammers. The angle of rotation can be limited on the device between 0 and 90 and continuously adjusted between 5 and 80. The limit is fixed using a set screw directly on the actuator or the gear box and the limit stop on the self-centring spindle adapter. The flow rate can be measured as describe in the following pages. Limit stops with gear box Cim 920/3776B Limit stops in EMV213/145 and EMV213/147 Limit stops in EMV213/148 and EMV213/150 6

7 Sizing: Thanks to their unique design, these valves are able to perform the following functions: REGULATION: selection of required flow rate within the operating range; The electrical actuator allows to set the flow rates working limits. CONTROL: constant flow rate despite of pressure fluctuations; Two different pressures operate on the DPC controller. The first one is transmitted from the valve inlet to the lower section; the second one is registered at valve outlet by the flow rate selecting device pa. In order to keep constant the difference between the mentioned pressures, the DPC controller obturator operates by closing the water outlet bore to reach the preset flow rate, regardless of fluctuating pressure conditions of the system. Relative density Fluid r Water MODULATION: flow rate modulation for temperature control; The electrical actuator performs the modulating function changing the section of flow passage. When continuous modulation is carried out, the temperature is kept under control. With continuous modulation, control is excellent even with small flow opening. This eliminates on/off effect. Constant flow is obtained through the valve, despite of pressure fluctuations. By simply measuring differential pressure (see below picture), the flow is obtained as follows: Water and glycol 10% Water and glycol 20% Water and glycol 30% Water and glycol 40% Water and glycol 50% where: Q is the flow rate in m 3 /h, r is the relative density, p is the pressure drop across the valve (see picture below); Kvs - Kv at specified preset(see table below). Opening Position KVs DN65 DN80 DN100 DN125 DN Constant flow is obtained through the valve, despite pressure fluctuations. If differential pressure across the whole valve is above pmin (start-up pressure), the flow rate is the same as the one stated on the valve table (function) of the pre-set; Working range at 100% Working range at 65% Working range at 33% Working range at 20% EKOFLUX.PICV Istruzioni rev Misura portata 7

8 EXAMPLE Q Δpc Δpa It is required to balance the circuit in the figure, the given data are: Circuit pressure drop: p c =10 kpa; Flow rate: Q= 48 m 3 /h=13.33 l/s; Maximum head: p a,max = 60 kpa (Pump head); Pipeline size: DN 100. Δp b Δp c Δp a Δp b Δp a = Δpb + Δpc Pressure drop across Cim 3776B Circuit pressure drop Available pressure for the riser It is possible to install a valve with the same diameter of the pipe, to avoid fittings installation. Using a Cim 3776B DN100, it is possible to check from the attached tables the flow rate (7,5-75 m 3 /h). In this conditions P.I.C.V. needs at least 30 kpa of differential pressure in order to work properly, the available pressure on the riser should be at least: SUGGESTED VALUES AND TIPS: Velocities in the pipeline: Max = 3 m/s Min = 0.75 m/s The maximum allowable differential pressure across the balancing valve is 400 kpa, it means that the maximum head at the riser should be: Being the maximum head less than the calculated limit, the installation is correct. For the preliminary sizings where the value of maximum available pressure is not known, it is possible to use the maximum head of the pump directly. 8

9 2 technological solutions Measurement conversion chart: Pressure FROM MULTIPLY BY TO OBTAIN Pa, Pascal 0,001 kpa, kilopascal Pa, Pascal 0, MPa, Mega Pascal Pa, Pascal 0,00001 bar Pa, Pascal 0, m H2O, metres of water Pa, Pascal 0, psi, pound per square inch bar 1,01325 atm, atmosphere bar 0, Kg/cm 2, kilograms per square centimetre bar 10,1972 m H2O, metres of water bar 14,5038 psi, pound per square inch atm, atmosphere 1,03323 Kg/cm 2, kilograms per square centimetre atm, atmosphere 10,3323 m H2O, metres of water atm, atmosphere 14,6959 psi, pound per square inch Kg/cm 2 10 m H2O, metres of water Kg/cm 2 14,2233 psi, pound per square inch m H2O 1,42233 psi, pound per square inch TO OBTAIN DIVIDE BY FROM Length, Area, Volume, Density FROM MULTIPLY BY TO OBTAIN inches 0,0254 m, metres inches 2,54 cm, centimetres feet 0,3048 m, metres feet 30,48 cm, centimetres yards 0,9144 m, metres square inches 0, m 2, metri quadrati square feet 0, m 2, square metres square inches 6,4516 cm 2, square centimetres square feet 929,0304 cm 2, square centimetres square yards 0, m 2, square metres l, litres 0,001 m 3, cubic metres gallons 0, m 3, cubic metres cubic yards 0, m 3, cubic metres cubic feet 0, m 3, cubic metres cubic inches 0, m 3, cubic metres cubic inches 16,38706 cm 3, cubic centimetres cubic feet 28,31685 l, litres gallons 3, l, litres TO OBTAIN DIVIDE BY FROM Pressure-temperature ratings: p [lbf/in ] T [ C] T [ F] p [bar] 9

10 Flow rates - DN 65 Cim 3776B Flow rate - Q (m 3 /h) DN Q = Kvs p 0% 12,5% 25% 37.5% 50% 62.5% 75% 87.5% 100% Setting Pre-Set 10% 15% 20% 30% 40% 50% 60% 70% 80% 90% 100% Angle Flow Rate 5% 10% Flow Rate m 3 /h ,6 8,4 11,2 14,0 16,8 19,6 22,4 25,2 28 l/s - 1,167 1,556 2,333 3,111 3,889 4,667 5,444 6,222 7,000 7,778 GPM - 18,49 24,66 36,98 49,31 61,64 73,97 86,30 98,62 110,95 123,28 Min p kpa kpa 400 kpa 10

11 Flow rates - DN 80 Cim 3776B Flow rate - Q (m 3 /h) DN Q = Kvs p 0% 12,5% 25% 37.5% 50% 62.5% 75% 87.5% 100% Setting Pre-Set 10% 15% 20% 30% 40% 50% 60% 70% 80% 90% 100% Angle Flow Rate 5% 10% Flow Rate m 3 /h - 5,7 7,6 11,4 15,2 19,0 22,8 26,6 30,4 34,2 38 l/s - 1,583 2,111 3,167 4,222 5,278 6,333 7,389 8,444 9,500 10,556 GPM - 25,10 33,46 50,19 66,92 83,65 100,39 117,12 133,85 150,58 167,31 Min p kpa kpa 400 kpa 11

12 Flow rates - DN 100 Cim 3776B Flow rate - Q (m 3 /h) DN Q = Kvs p 0% 12,5% 25% 37.5% 50% 62.5% 75% 87.5% 100% Setting Pre-Set 10% 15% 20% 30% 40% 50% 60% 70% 80% 90% 100% Angle Flow Rate 5% 10% Flow Rate m 3 /h 7,5 11,3 15,0 22,5 30,0 37,5 45,0 52,5 60,0 67,5 75 l/s 2,083 3,125 4,167 6,250 8,333 10,417 12,500 14,583 16,667 18,750 20,833 GPM 33,02 49,53 66,04 99,06 132,09 165,11 198,13 231,15 264,17 297,19 330,22 Min p kpa kpa 400 kpa 12

13 Flow rates - DN 125 Cim 3776B Flow rate - Q (m 3 /h) DN Q = Kvs p 0% 12,5% 25% 37.5% 50% 62.5% 75% 87.5% 100% Setting Pre-Set 10% 15% 20% 30% 40% 50% 60% 70% 80% 90% 100% Angle Flow Rate 5% 10% Flow Rate m 3 /h 12,5 18,8 25,0 37,5 50,0 62,5 75,0 87,5 100,0 112,5 125 l/s 3,472 5,208 6,944 10,417 13,889 17,361 20,833 24,306 27,778 31,250 34,722 GPM 55,04 82,55 110,07 165,11 220,14 275,18 330,22 385,25 440,29 495,32 550,36 Min p kpa kpa 400 kpa 13

14 Flow rates - DN 150 Cim 3776B Flow rate - Q (m 3 /h) DN Q = Kvs p 0% 12,5% 25% 37.5% 50% 62.5% 75% 87.5% 100% Setting Pre-Set 10% 15% 20% 30% 40% 50% 60% 70% 80% 90% 100% Angle Flow Rate 5% 10% Flow Rate m 3 /h 16,0 24,0 32,0 48,0 64,0 80,0 96,0 112,0 128,0 144,0 160 l/s 4,444 6,667 8,889 13,333 17,778 22,222 26,667 31,111 35,556 40,000 44,444 GPM 70,45 105,67 140,89 211,34 281,78 352,23 422,68 493,12 563,57 634,01 704,46 Min p kpa kpa 400 kpa 14

15 P R L M Main dimensions: Cim 3776B C n x F 31 d H Q H B A W Y V 50 Z Z1 51 ISO5211 F J K G DN rev kg (without actuator) kg (with gear box) A H H B E S J K G C F n x D 4 x 18 8 x 18 8 x 18 8 x 18 8 x 22 ISO F05 F05 F05 F07 F07 W V Z Z Y

16 Main dimensions: Cim EMV213/145 Cim EMV213/147 Cim EMV213/148 Cim EMV213/150 Cim EMV213/145 and Cim EMV213/ > Cim EMV213/148 and Cim EMV213/150 Maintenance: As a rule, the balancing valve does not need any maintenance. In case of replacement or need of disassembling of some components of the valve make sure that the installation is not under service or pressure. 16

28017 San Maurizio d Opaglio (NO) - Italy - Via Torchio, 57 - C.P. 106 Tel. +39 0322 923001 - Fax: +39 0322 967216 / 967755 skype: cimberiosk1, cimberiosk2 info@cimberio.

18 28017 San Maurizio d Opaglio (NO) - Italy - Via Torchio, 57 - C.P. 106 Tel Fax: / skype: cimberiosk1, cimberiosk2 info@cimberio.it Copyright - Cav. Uff. GIACOMO CIMBERIO S.p.A. - All rights reserved. Tutti i diritti riservati. IMR FM SA EMS OHS ENMS

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