Manual presetting valve MSV-C

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1 Description / Application MSV-C is used for balancing the flow in cooling, heating and domestic water systems. MSV-C is a combined manual presetting valve with following features: Fixed measurement orifice. Supplied with 2 pcs. of measuring nipples for needles. Handwheel with shut-off function and clear 360 o reading Digital scale with lock function Measuring accuracy of fixed orifice ± 5% MSV-C is supplied with internal thread. MSV-C is made in standard brass and CR brass (CR - Corrosion Resistant). MSV-C Fan Coil MSV-C Fan coil terminals for cooling and heating. MSV-C or MSV-F2 MSV-C or MSV-F2 MSV-C or MSV-F2 Secondary circuit for cooling or heating in distribution systems. HEC VDB1C602 Danfoss 09/2008 1

2 Ordering MSV-C valve with measuring nipples Type Material Size kvs Connection Code no. CR brass, with measuring nipples (2 pcs.) Brass, with measuring nipples (2 pcs.) DN Rp ½" 003Z3001 DN Rp ¾" 003Z3002 DN Rp 1" 003Z3003 DN Rp 1¼" 003Z3004 DN Rp 1½" 003Z3005 DN Rp 2" 003Z3006 DN Rp ½" 003Z3020 DN Rp ¾" 003Z3021 DN Rp 1" 003Z3022 DN Rp 1¼" 003Z3023 DN Rp 1½" 003Z3024 DN Rp 2" 003Z3025 MSV-C valve without measuring nipples Type Material Size kvs Connection Code no. Brass, without nipples (with plug) CR brass, without measuring station DN Rp ½" 003Z3010 DN Rp ¾" 003Z3012 DN Rp 1" 003Z3013 DN Rp 1¼" 003Z3014 DN Rp 1½" 003Z3015 DN Rp 2" 003Z3016 DN Rp ½" 003Z3030 DN Rp ¾" 003Z3031 DN Rp 1" 003Z3032 DN Rp 1¼" 003Z3033 DN Rp 1½" 003Z3034 DN Rp 2" 003Z3035 Note for commissioning: kvs for measuring orifice is explained on page 4 and 5. MSV-C valve with draincock and measuring nipples Type Material Size kvs Connection Code no. CR brass, draincock, with measuring nipples (2 pcs.) Brass, draincock, with measuring nipples (2 pcs.) DN Rp ½" 003Z3800 DN Rp ¾" 003Z3801 DN Rp 1" 003Z3802 DN Rp 1¼" 003Z3803 DN Rp 1½" 003Z3804 DN Rp 2" 003Z3805 DN Rp ½" 003Z3811 DN Rp ¾" 003Z3812 DN Rp 1" 003Z3813 DN Rp 1¼" 003Z3814 DN Rp 1½" 003Z3815 DN Rp 2" 003Z VDB1C602 Danfoss 09/2008 HEC

3 Accessories Type Size Code no. Measuring nipples for needles, 2 pcs. 36 mm ¼" 003Z0100 Extended nipples for needles, 2 pcs. 60 mm ¼" 003Z0106 Measuring needles, 2 pcs. 3.0 mm 003Z0107 Drain cook ¾" - ¼" 003L8141 Measuring connector for drain cook ¾" - Rectus 003L8143 Measuring equipment PFM L8230 Handwheel, for valve size DN Z3050 Handwheel, for valve size DN Z3051 Handwheel, for valve size DN Z3052 Handwheel, for valve size DN Z3053 Handwheel, for valve size DN Z3054 Handwheel, for valve size DN Z3055 Insulation caps Type DN 15 DN 20 DN 25 DN 32 DN 40 DN 50 Code no. 003Z Z Z Z Z Z3045 The insulation caps are made of polyurethane foam with a polystyrene shield, and they are designed for temperatures from -30 o C to +120 o C (λ = W/mK). Design 1. Valve body (CR brass) 2. Bonnet 3. Setting spindle 4. Valve cone 5. O-ring 6. O-ring 7. Pos. indicator 8. Retaining ring 9. Handle 10. Lock setting screw 11. Knob 12. Pin 13. Valve information cap 14. Fixed orifice 15. Label 16. Digital scale 17. Valve seal Locking and shut-off Informations on the label: Type: MSV-C S : max. S Dimension:..... DN 15 MSV-C valve can shut-off the flow by turning the handwheel clockwise to the stop. The presetting can be locked with an 6 mm Allen key. HEC VDB1C602 Danfoss 09/2008 3

4 Measuring Fixed orifice (S ) and differential pressure will be used in the measuring equipment to define the flow. Measuring on a fixed orifice valve i.e. MSV-C is very fast and easy. The amount of information entered into the measuring equipment is low. The Danfoss measuring equipment PFM 3000: Type: Danfoss MSV-C Dimension: DN 20 Now presetting scale can be turned to the desired position and at the same time the exact flow can be read at the measuring equipment. The flow running through the MSV-C valve can be measured by using the Danfoss measuring equipment PFM 3000 or other brands of measuring equipment. The MSV-C valve is supplied with two measuring nipples for 3 mm needles. The other brands of measuring equipment. S : 4.1 (orifice DN 20 MSV-C) Now presetting scale can be turned to the desired flow and at the same time the exact flow can be read at the measuring equipment. The measuring nipples are placed across a fixed orifice and the differential pressure can be measured across this orifice. Fixed orifice The fixed orifice is a very presise way to define the flow running through a presetting valve. Our fixed orifice is created in the valve body and has a fixed and stable k vs. Sizing depends on valve dimension. On a fixed orifice valve i.e. MSV-C the orifice is fixed and stable because it is created in the valve body. Measuring accuracy ± 5%. Setting / adjustment The flow can be adjusted with the presetting hand-wheel. The digital presetting scale indicates the value of setting. Turn the presetting hand-wheel clockwise. The K v value will be smaller and finally shut-off the flow. Turn the presetting hand-wheel counter-clockwise and K v will increase. The digital presetting scale indicates: 0.0 Closed setting orifice. 8.0 Completly opened setting orifice. At page 6-17, the valve diagram shows the digital presetting scale setting no. and K v. 4 VDB1C602 Danfoss 09/2008 HEC

5 Valve selection table Size *Minimum flow rate (l/s) Max balancing pressure (kpa) S orifice DN Q DN Q DN Q DN Q DN Q DN Q * Minimum flow rate at 1kPa pressure drop across orifices. S K VS valve K VS orifice k vs orifice k vs valve k vs - k vs across orifices - k vs across the cone - k vs include orifice and cone. K VS Example: Wanted: Correct valve size and presetting. Given: Max. pipe flow Q= 0.80 m 3 /h p r = 15 kpa p a = 40 kpa p m = 10 kpa Solution: MSV-C size and presetting: The differential pressure across MSV-C can be calculated: p i = p a - p v - p m p i = 45 kpa - 15 kpa - 10KPa = 20 kpa The correct valve size on presetting can be found in the graph (page 7). Q= 0.80 m 3 /h and p i = 20 kpa Intersect the setting lines at point 'A' - presetting 3.2 on valve size DN 20. p i Pressure drop across MSV-C valve p m Pressure drop across valve p r Necessary pressure for the riser p a Available pressure for the riser Setting can be also calculated from the formula: k v = Q[m 3 /h] 0.8 = p i [bar] 0.20 = 1.7 m 3 /h what corespondent presetting 3.2. Technical data Max. static working pressure Static test pressure Max. differential pressure across valve 16 bar 25 bar Max. flow temperature 120 C Min. temperature Cooling liquids 1.5 bar (150 kpa) -10 C Glycol and HYCOOL Material of parts in contact with water Valve body, spindle, cone, etc. O-rings Corrosion Resistant (CR) or standard brass HMBR HEC VDB1C602 Danfoss 09/2008 5

6 DN 15 with measuring station DN 15 with measuring station Flow characteristics DN 15 with meas. station 6 VDB1C602 Danfoss 09/2008 HEC

7 DN 15 without measuring station DN 15 without measuring station Flow characteristics DN 15 without meas. station HEC VDB1C602 Danfoss 09/2008 7

8 DN 20 with measuring station DN 20 with measuring station Flow characteristics DN 20 with meas. station 8 VDB1C602 Danfoss 09/2008 HEC

9 DN 20 without measuring station DN 20 without measuring station Flow characteristics DN 20 without meas. station HEC VDB1C602 Danfoss 09/2008 9

10 DN 25 with measuring station DN 25 with measuring station Flow characteristics DN 25 with meas. station 10 VDB1C602 Danfoss 09/2008 HEC

11 DN 25 without measuring station DN 25 without measuring station Flow characteristics DN 25 without meas. station HEC VDB1C602 Danfoss 09/

12 DN 32 with measuring station DN 32 with measuring station Flow characteristics DN 32 with meas. station 12 VDB1C602 Danfoss 09/2008 HEC

13 DN 32 without measuring station DN 32 without measuring station Flow characteristics DN 32 without meas. station HEC VDB1C602 Danfoss 09/

14 DN 40 with measuring station DN 40 with measuring station Flow characteristics DN 40 with meas. station 14 VDB1C602 Danfoss 09/2008 HEC

15 DN 40 without measuring station DN 40 without measuring station Flow characteristics DN 40 without meas. station HEC VDB1C602 Danfoss 09/

16 DN 50 with measuring station DN 50 with measuring station Flow characteristics DN 50 with meas. station 16 VDB1C602 Danfoss 09/2008 HEC

17 DN 50 without measuring station DN 50 without measuring station Flow characteristics DN 50 without meas. station HEC VDB1C602 Danfoss 09/

18 Dimensions without nipples (with plug) with 2 pcs. measuring nipples F F E E SW C D F E B B B SW A C D A Size (DN) Thread SW A B C D E F without nipples Weight (kg) with nipples 15 R p ½ R p ¾ R p R p 1¼ R p 1½ R p C D A SW Size (DN) Thread SW A B C D E F Weight (kg) 15 R p ½ R p ¾ R p R p 1¼ R p 1½ R p VDB1C602 Danfoss 09/2008 HEC

19 HEC VDB1C602 Danfoss 09/

20 Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed. All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved. Danfoss A/S Comfort Division Hårupvænget 11 Hårup DK-8600 Silkeborg Denmark Tel.: Fax: Danfoss Trata d.o.o. Jožeta Jame 16, P.O.B Ljubljana - Šentvid Slovenia Tel.: / Fax: / VDB1C602 Danfoss 09/2008 HEC

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