Danfoss Electronics NRV, NRVH Data Sheet

Data sheet

Check valve

Types NRV and NRVH Version 2

NRV and NRVH can be used in liquid suction and hot gas lines in refrigeration and air conditioning plants.

The valves ensure the correct ﬂow direction and prevent back-condensation from a warm part of the system to the cold evaporator.

The hermetic tight design of solder versions meet the environmental demands for today and future.

A built-in damping piston makes the valves suitable for installation in lines where pulsation can occur, e. g. in the discharge line from the compressor.

Features y Ensure correct ﬂow direction

y Available in both straightway and angleway

versions

y Prevents back-condensation from warm to

cold system part y Hermetic tight design for solder versions y Built-in damping piston that makes the

valves suitable for installation in lines where

pulsation can occur, e.g. in the discharge line from the compressor

y NRVH type check valve is with stronger spring

and it‘s recommended to use for compressors in parallel (i.e. power packs) where higher level of pulsation and vibration are expected

y Oversize connections provide ﬂexibility in use

AI150286435592en-000702 | 1

Data sheet | Check valve, types NRV and NRVH

Approvals

Technical data

Dimensioning and selection

Refrigerants

R134a, R22/R407C, R290, R32, R404A/R507, R407A, R407F, R407H, R410A, R448A, R449A, R449B, R450A, R452A, R452B, R454A, R454B, R454C, R455A, R513A, R515B, R516A, R600, R600a, R1233zd(E), R1234ze(E), R1234yf, R1270

Note:

• For complete list of approved refrigerants, go to http://store.danfoss.com/ and search for individual code numbers, where refrigerants are listed as part of product details.

• Only solder versions are allowed for flammable refrigerant. This product is approved for R290, R32, R452B, R454A, R454B, R454C, R455A, R516A, R600, R600a, R1234yf and R1270 by ignition source assessment in accordance to standard EN13463-1.

• R1234ze can be used for NRV size up to 35s according to the PED category I, Fluid II

• NRV/NRVH is not suitable for oil application. For detailed information please contact Danfoss.

When selecting the right Danfoss check valve the capacity tables should be utilised together with plant requirements concerning piping and connection sizes. The optimum solution should include the highest capacity at lowest pressure drop across the valve before it closes. Further, when dimensioning and selecting Danfoss check valves for mounting into the compressor discharge line, it is important to be aware of the following:

Design / Function Straightway solder version

1. Copper tube

2. Solder ring

3. Washer

4. Teﬂon disk

5. Piston

6. Spring

7. Valve body

8. Guide

9. Stop face

10. Cover

The diﬀerential pressure across the valve must always be higher than the given minimum pressure drop at which the valve is completely open. This also applies to lowest capacities for compressor with capacity regulation.

NRVH type check valve is with stronger spring and it’s recommended to use for compressors in parallel (i.e. power packs) where higher level of pulsation and vibration are expected.

Angleway solder version

AI150286435592en-000702 | 2

Data sheet | Check valve, types NRV and NRVH

Ordering

Straightway Flare Version without flare nut

Min. OPD

Δp 2) Valve type

NRV 6

Connection

[in] [mm] [bar] [psi] [m3/h] [gal/min]

⁄4 6 0.07 1.01 0.56 0.65

NRV 103⁄8 10 0.07 1.01 1.2 1.39 020-1041 NRV 121⁄2 12 0.05 0.72 2.05 2.37 020-1042 NRV 165⁄8 16 0.05 0.72 3.6 4.16 020-1043 NRV 193⁄4 19 0.05 0.72 5.5 6.36 020-1044

value 3)

Max.

working

pressure:

PS/MWP

46 bar /

667 psig

Media

temperature

range

-50 °C - 140 °C /

-58 °F - 285 °F

For

flammable

refrigerant 4)

PED

category

Article 4,

Paragraph 3

Code no.

Multi pack 5)

020-1040

Angleway Solder ODF Version, PS = 46 bar

Connection

Min. OPD

Δp 2)

Valve type

NRV 22s

[in] [mm] [bar] [psi] [m3/h]

⁄8 22 0.04 0.58 8.5 9.83

NRVH 22s 7⁄8 22 0.30 4.35 8.5 9.83 020-1032

NRV 22s 1)

NRVH 22s 1)

NRV 28s

NRVH 28s

1 1⁄8 – 0.04 0.58 8.5 9.83 020-1060

– 28 0.04 0.58 8.5 9.83 020-1055

1 1⁄8 – 0.30 4.35 8.5 9.83 020-1072

– 28 0.30 4.35 8.5 9.83 020-1067

1 1⁄8 – 0.04 0.58 16.5 19.07 020-1021

– 28 0.04 0.58 16.5 19.07 020-1025

1 1⁄8 – 0.30 4.35 16.5 19.07 020-1029

– 28 0.30 4.35 16.5 19.07 020-1033

NRV 28s 1) 1 3⁄8 35 0.04 0.58 16.5 19.07

NRVH 28s 1) 1 3⁄8 35 0.30 4.35 16.5 19.07 020-1068

NRV 35s

1 3⁄8 35 0.04 0.58 29 33.52 020-1026

NRVH 35s 1 3⁄8 35 0.30 4.35 29 33.52 020-1034

NRV 35s 1)

NRVH 35s 1)

1 5⁄8 – 0.04 0.58 29 33.52

– 42 0.04 0.58 29 33.52 020-1027

1 5⁄8 – 0.30 4.35 29 33.52 020-1073

– 42 0.30 4.35 29 33.52 020-1035

value 3)

[gal/ min]

Max.

working

pressure:

PS/MWP

46 bar /

667 psig

Media

temperature

range

-50 °C - 140 °C /

-58 °F - 285 °F

For

flammable

refrigerant 4)

Yes

PED

category

Article 4,

Paragraph 3

Ⅰ

Code no.

Multi pack 5)

020-1020

020-1056

020-1061

Angleway Solder ODF Version, PS = 49 bar

Min. OPD

Δp 2)

Valve type

NRV 22s

Connection

[in] [mm] [bar] [psi] [m3/h]

⁄8 22 0.04 0.58 8.5 9.83

) (The availability of below codes will be updated in October 2019)

value 3)

[gal/ min]

Max.

working

pressure:

PS/MWP

Media

temperature

range

For

flammable

refrigerant 4)

PED

category

Code no.

Multi pack

020-3020

NRVH 22s 7⁄8 22 0.30 4.35 8.5 9.83 020-3032

NRV 22s 1)

NRVH 22s 1)

NRV 28s

NRVH 28s

NRV 28s 1) 1 3⁄8 35 0.04 0.58 16.5 19.07

1 1⁄8 – 0.04 0.58 8.5 9.83 020-3060

– 28 0.04 0.58 8.5 9.83 020-3055

1 1⁄8 – 0.30 4.35 8.5 9.83 020-3072

– 28 0.30 4.35 8.5 9.83 020-3067

Article 4,

Paragraph 3

1 1⁄8 – 0.04 0.58 16.5 19.07 020-3021

– 28 0.04 0.58 16.5 19.07 020-3025

1 1⁄8 – 0.30 4.35 16.5 19.07 020-3029

– 28 0.30 4.35 16.5 19.07 020-3039

49 bar /

710 psig

-50 °C - 155 °C /

-58 °F - 311 °F

Yes

020-3056

NRVH 28s 1) 1 3⁄8 35 0.30 4.35 16.5 19.07 020-3068

NRV 35s 1 3⁄8 35 0.04 0.58 29 33.52 020-3026

NRVH 35s 1 3⁄8 35 0.30 4.35 29 33.52 020-3036

NRV 35s 1)

NRVH 35s 1)

Oversize connections

∆ p =Minimum Opening Pressure Differential

The Kv / Cv value is the flow of water in [m3/h – gal/min] at a pressure drop across valve of 1 bar/14.5 psig

ρ = 1000 kg/m3 - 2205 lbs/G

) Please refer to the Danfoss refrigerant list for flammable refrigerants, for other flammable refrigerants please contact Danfoss.

) For the code selection of Industrial pack version please contact Danfoss.

) The 49bar NRV angleway version can be only used with flammable refrigerants.

1 5⁄8 – 0.04 0.58 29 33.52 020-3061

– 42 0.04 0.58 29 33.52 020-3027

1 5⁄8 – 0.30 4.35 29 33.52 020-3073

– 42 0.30 4.35 29 33.52 020-3035

Ⅱ

AI150286435592en-000702 | 3

Data sheet | Check valve, types NRV and NRVH

Ordering (continued)

Straightway Solder ODF Version

Valve type

NRV 6s v2

NRV 6s v2 1)

NRVH 6s v2 1)

NRV 10s v2

NRVH 10s v2

NRV 10s v2 1)

NRVH 10s v2 1)

NRV 12s v2

NRVH 12s v2

NRV 12s v2 1)

Connection

Min. OPD

Δp 2)

value 3)

[in] [mm] [bar] [psi] [m3/h] [gal/min]

⁄4 – 0.04 0.58 0.67 0.77

– 6 0.04 0.58 0.67 0.77 020B1014

⁄8 – 0.04 0.58 0.67 0.77 020B1057

– 10 0.04 0.58 0.67 0.77 020B1050

⁄8 – 0.20 2.90 0.67 0.77 020B1069

– 10 0.20 2.90 0.67 0.77 020B1062

⁄8 – 0.04 0.58 1.64 1.90 020B1011

– 10 0.04 0.58 1.64 1.90 020B1015

⁄8 – 0.20 2.90 1.64 1.90 020B1046

– 10 0.20 2.90 1.64 1.90 020B1036

⁄2 – 0.04 0.58 1.64 1.90 020B1058

– 12 0.04 0.58 1.64 1.90 020B1051

⁄2 – 0.20 2.90 1.64 1.90 020B1070

– 12 0.20 2.90 1.64 1.90 020B1063

⁄2 – 0.02 0.29 2.50 2.89 020B1012

– 12 0.02 0.29 2.50 2.89 020B1016

⁄2 – 0.20 2.90 2.50 2.89 020B1039

– 12 0.20 2.90 2.50 2.89 020B1037

⁄8 16 0.02 0.29 2.50 2.89 020B1052

Max.

working

pressure:

PS/MWP

49 bar /

710 psig

Media

temperature

range

-50 °C - 155°C /

-58 °F - 311 °F

NRVH 12s v2 1) 5⁄8 16 0.20 2.90 2.50 2.89 020B1064

NRV 16s v2

⁄8 16 0.02 0.29 4.00 4.62 020B1018

NRVH 16s v25⁄8 16 0.20 2.90 4.00 4.62 020B1038

NRV 16s v2 1) – 18 0.02 0.29 4.00 4.62 020B1053

NRVH 16s v2 1) – 18 0.20 2.90 4.00 4.62 020B1065

NRV 16s v2 1) 3⁄4 19 0.02 0.29 4.00 4.62 020B1059

NRVH 16s v2 1)3⁄4 19 0.20 2.90 4.00 4.62 020B1071

NRV 19s v2 – 18 0.02 0.29 6.50 7.51 020B1017

NRVH 19s v2 – 18 0.14 2.03 6.50 7.51 020B1008

NRV 19s v2

⁄4 19 0.02 0.29 6.50 7.51 020B1019

NRVH 19s v23⁄4 19 0.14 2.03 6.50 7.51 020B1023

NRV 19s v2 1)7⁄8 22 0.02 0.29 6.50 7.51 020B1054

NRVH 19s v2 1)7⁄8 22 0.14 2.03 6.50 7.51 020B1066

Oversize connections

∆p = Minimum Opening Pressure Differential

The Kv / Cv value is the flow of water in [m3/h – gal/min] at a pressure drop across valve of 1 bar/14.5 psig

ρ = 1000 kg/m3 - 2205 lbs/G

) Please refer to the Danfoss refrigerant list for flammable refrigerants, for other flammable refrigerants please contact Danfoss

) For the code selection of Industrial pack version please contact Danfoss.

For

flammable

refrigerant 4)

Yes

PED

category

Article 4,

Paragraph 3

Code no.

Multi pack 5)

020B1010

AI150286435592en-000702 | 4

Data sheet | Check valve, types NRV and NRVH

Capacity SI units

Liquid capacity (kW) Suction vapour capacity in [kW] Hot gas capacity in [kW] Hot gas capacity in [kW]

Liquid capacity 1)

at pressure drop

Typ e

R134 a R134 a R134 a R134 a

NRV 6 v2 1.4 4.6 11. 0 14.4 0.07 0.22 0.39 0.50 0.56 0.2 0.7 1. 7 2.2 NRVH 6 v2 0 .1 0.3 1. 4 2.0

NRV 10 v2 8.3 18 .2 29.5 35.2 0.07 0.91 1.59 2.01 2 .24 1.3 2.8 4.5 5.4 NRVH 10 v2 0.0 2.9 5.0 6.5

NRV 12 v2 26.9 31.8 4 4.9 53.7 0.07 1.6 8 2. 83 3.55 3.95 4.2 4.9 6.9 8.2 NRVH 12 v2 5.6 9.2 10.0 10. 8

NRV 16 v2 38.8 50.8 71.9 85.9 0.07 2.68 4.53 5.68 6.32 6.0 7. 9 11.1 13. 2 NRVH 16 v2 1.9 10.5 13 .8 15. 9

NRV 19 v2 69. 8 82.6 11 6. 9 139.7 0.07 4.36 7.37 9.24 10.27 10.8 12 .8 18 .0 21.4 NRVH 19 v2 16. 0 23.8 26.0 28.0

NRV 22 91.6 10 8.4 153. 3 183 .3 0.07 5.73 9.67 1 2.11 13.47 14.2 16 .8 23.6 28.1 NRVH 22 - - 34.1 36.7

NRV 28 177.9 210 .5 297.7 355. 8 0.07 11. 13 18.77 23.51 26.14 2 7.6 32.6 45.9 54.6 NRVH 28 - - 66.3 71.3

NRV 35 312. 7 369.9 523.2 625.3 0.07 19. 56 32.99 41.3 3 45.94 48.6 5 7.4 80.7 95.9 NRVH 35 - - 116.5 125.3

R22 R22 R22 R22

NRV 6 v2 1.5 4.9 11. 8 15 .5 0.07 0.34 0.54 0.66 0.72 0.3 0.9 2.1 2.8 NRVH 6 v2 0.1 0.4 1.8 2.6

NRV 10 v2 9. 0 19.7 31. 8 38.0 0.07 1.39 2.18 2.64 2.89 1. 6 3.5 5.7 6.8 NRVH 10 v2 0.0 3.6 6.3 8.2

NRV 12 v2 28.9 34.2 48.4 5 7.9 0 .07 2.50 3.84 4.6 4 5.07 5.2 6.2 8.7 10.4 NRVH 12 v2 7. 0 11. 6 12.7 13.6

NRV 16 v2 41.8 54.8 7 7.5 92.6 0.07 3.99 6.14 7. 42 8.11 7. 5 9.9 14.0 16.6 NRVH 16 v2 2.5 13.4 17.6 20.2

NRV 19 v2 75. 2 89.0 12 5.9 150 .5 0.07 6.49 9.98 12.05 13.17 13.6 16.1 22.7 27. 0 NRVH 19 v2 20.2 30.1 32.9 35.5

NRV 22 98.4 116 .4 164.6 196.8 0. 07 8.48 13 .05 15 .76 17. 23 17. 8 21. 0 29.6 35.3 NRVH 22 - - 43.0 46.4

NRV 28 191.0 226.0 319. 6 382.0 0.07 16. 47 25.33 30.59 33.44 34.5 40.8 57. 5 68.6 NRVH 28 - - 83.5 90.0

NRV 35 335.7 3 97.2 561. 7 671.4 0. 07 28.94 44.52 53.77 58.78 60.7 71. 8 101.1 120 .5 NRVH 35 - - 146 .8 158.2

R404A R404A R404A R404A

NRV 6 v2 1.0 3.4 8.0 10. 5 0. 07 0.29 0.47 0.59 0.65 0.2 0.8 1. 8 2.4 NRVH 6 v2 0.1 0.4 1.6 2.3

NRV 10 v2 6.1 13. 4 21. 6 25.8 0.07 1.17 1. 90 2.35 2.59 1.4 3.1 4.9 5.9 NRVH 10 v2 0.0 3.1 5.4 7.1

NRV 12 v2 19.7 23.3 32.9 39.3 0.07 2.09 3.34 4.12 4.54 4.5 5.3 7.5 9.0 NRVH 12 v2 6.1 10. 0 10.9 11. 8

NRV 16 v2 28.4 3 7.2 52.6 62.9 0.07 3.34 5.35 6.59 7. 27 6.5 8.5 12. 0 14. 3 NRVH 16 v2 2.1 11.6 15. 2 17.5

NRV 19 v2 51.1 60.5 85.5 102 .2 0.07 5.43 8.70 10.71 11. 81 11.7 13 .9 19.6 23.3 NRVH 19 v2 17. 5 26.0 28.4 30.6

NRV 22 67. 0 79.3 112 .2 134.1 0.07 7. 09 11. 37 14.01 15 .4 6 15.4 18 .2 25.6 30.6 NRVH 22 - - 3 7.2 4 0.1

NRV 28 13 0.1 154 .0 217. 8 260.3 0.07 13. 77 2 2.07 27.19 30. 02 29.9 35.3 49. 8 59.3 NRVH 28 - - 72.3 77. 9

NRV 35 228.7 270.6 382.7 4 57.5 0.07 24.20 38.79 47.7 9 52.76 52. 5 62.0 87. 4 104.2 NRVH 35 - - 12 7.1 137. 0

R410A R410A R410A R410A

NRV 6 v2 1.5 4.9 11. 6 15 .3 0.07 0.44 0.68 0.83 0.90 0.3 1.1 2.6 3.4 NRVH 6 v2 0.2 0.5 2.3 3.2

NRV 10 v2 8.8 19. 3 31. 2 37. 3 0.07 1.78 2.74 3.30 3.61 2.0 4.4 7.0 8.4 NRVH 10 v2 0.0 4.5 7. 8 10.1

NRV 12 v2 28.5 33.7 47. 6 56.9 0.07 3 .16 4.80 5.78 6.32 6.4 7.6 10.7 12. 8 NRVH 12 v2 8.7 14 .3 15. 6 16. 8

NRV 16 v2 41.1 53.9 76 .2 91.1 0 .07 5.05 7.6 9 9.26 10 .11 9.3 12 .2 17. 2 20.5 NRVH 16 v2 3.1 16.6 21. 8 2 5.1

NRV 19 v2 74.0 8 7.6 123 .8 148. 0 0.07 8. 21 12. 49 15 .04 16 .42 16. 7 19. 8 27. 9 33.3 NRVH 19 v2 25.0 37.1 40.6 43.8

NRV 22 96.7 114 .4 161.8 193.4 0.07 10.72 16.35 19. 70 21.52 21.9 25.9 36.5 43.6 NRVH 22 - - 53.2 57. 3

NRV 28 187.7 222.1 314.1 375.4 0.07 20 .81 31.73 38 .24 41. 77 42. 5 50.2 70.9 84.6 NRVH 28 - - 103 .2 111. 3

NRV 35 329.9 39 0.3 552. 0 659.7 0.07 36.57 55.77 67.2 1 73.42 74.7 88.3 124 .6 148 .6 NRVH 35 - - 181.4 195.7

1) Rated capacities are based on:

-Evaporating temperature, te = -10 °C.

-Condensing temperature, tc = 30 °C.

-Subcooling t

-Delta superheat tsh = 0 K.

-Discharge temperature, td = 80 °C ahead of the valve. The table values refer to the evaporator capacity.

across valve ∆p

[bar]

NRV NRV NRVH

0.05 0.07 0.14 0.2 -30 -10 0 5 0.05 0.07 0.14 0.2 0.2 0. 25 0.3 0.35

= 5 K.

sub

Pressure

across

valve ∆p

Suction vapour capacity 1)

drop

[bar]

at evaporating

temperature te

[°C]

Correction factors

When selecting the evaporator capacity is to be multiplied by a correction factor depending on the liquid temperature tl ahead of the valve/the evaporator. The corrected capacity can then be found from the table.

System capacity.Correction factor=Table capacity

Correction factors for liquid temperature t

tl [°C]

R134a

R22

R404A

R410A

-10 0 10 15 20 25 30 35 40 45 50

0.73 0.79 0.86 0.90 0.95 1.00 1.06 1.12 1.19 1.27 1.37

0.76 0.82 0.88 0.92 0.96 1.00 1.05 1.10 1.16 1.22 1.30

0.67 0.74 0.82 0.87 0.93 1.00 1.08 1.17 1.29 1.43 1.61

0.72 0.78 0.85 0.90 0.94 1.00 1.06 1.14 1.22 1.33 1.46

Hot gas capacity 1)

at pressure drop

across valve ∆p

[bar]

Typ e

Hot gas capacity1)

at pressure drop across valve

Δp

[bar]

AI150286435592en-000702 | 5

Data sheet | Check valve, types NRV and NRVH

Capacity SI units

Liquid capacity (kW) Suction vapour capacity in [kW] Hot gas capacity in [kW] Hot gas capacity in [kW]

Liquid capacity 1)

at pressure drop

Typ e

R4 07A R 407A R40 7A R R407A

NRV 6 v2 1.4 4.4 10.5 13 .8 0.07 0.30 0.50 0.62 0.68 0.3 0.9 2.2 2.9 NRVH 6 v2 0.2 0.4 1. 9 2.7

NRV 10 v2 7.9 17.4 28.2 33.7 0.07 1. 21 2.00 2.47 2.74 1.7 3.6 5.9 7. 0 NRVH 10 v2 0.0 3.7 6.5 8.4

NRV 12 v2 25.7 30.4 42.9 51.3 0.07 2 .17 3.52 4.35 4.80 5.4 6.3 8.9 10.6 NRVH 12 v2 7. 2 11. 9 13 .0 14 .0

NRV 16 v2 37. 0 48.6 68.7 82.1 0.07 3.48 5.63 6.95 7. 68 7. 7 10.1 14.3 17. 0 NRVH 16 v2 2.5 13. 7 18.1 20.8

NRV 19 v2 66.7 78.9 111. 6 133 .4 0.07 5.65 9.15 11. 30 12 .48 13.9 16.5 23.2 27.7 NRVH 19 v2 20.8 30.9 33.8 36.4

NRV 22 87. 5 103.5 146.4 175. 0 0 .07 7.4 0 12 .00 14.82 16. 38 18.3 21.6 30.5 36.4 NRVH 22 - - 44.4 4 7.8

NRV 28 16 9.9 201.0 284.2 339.7 0.07 14. 37 23.29 28.77 31.79 35.5 42.0 59. 2 70.6 NRVH 28 - - 86.1 92. 8

NRV 35 298.5 353.2 499.5 597.1 0.07 25.25 40.94 50.57 55.87 62.5 73.9 10 4.1 124.1 NRV H 35 - - 151.3 163 .1

R407C R407C R4 07C R407C

NRV 6 v2 1.5 4.7 11 .3 14.8 0.07 0.30 0.50 0.62 0.69 0.3 0.9 2.2 2.9 NRVH 6 v2 0.2 0.5 1.9 2.8

NRV 10 v2 8.6 18. 8 30.4 36.3 0.07 1. 22 2.02 2.50 2.77 1.7 3.7 6.0 7.2 NRVH 10 v2 0.0 3.8 6.7 8.7

NRV 12 v2 27. 7 32. 8 46.3 55.4 0.07 2.20 3.56 4.40 4.86 5.5 6.5 9.2 11.0 NRVH 12 v2 7. 4 12. 2 13.4 14.4

NRV 16 v2 40.0 52.4 74.1 88.6 0.07 3.52 5.70 7. 04 7. 77 8.0 10.5 14.7 17. 6 NRVH 16 v2 2.6 14 .1 18.6 21.4

NRV 19 v2 72.0 85.2 120.5 144.0 0.07 5.72 9.27 11.4 4 12. 63 14.4 17.0 23.9 28.5 NRVH 19 v2 21. 4 31.8 34.8 3 7.5

NRV 22 94.4 111. 7 157. 9 188. 8 0.07 7. 48 12.14 14.99 16.56 18.9 22.3 31.4 3 7.4 NRVH 22 - - 45. 6 49. 2

NRV 28 183 .2 216 .8 306.6 366.5 0.07 14. 52 23.56 29.10 32.14 36.6 43. 3 61.0 72.7 NRVH 28 - - 88.6 95.5

NRV 35 322.0 381.0 538.9 6 44.1 0. 07 25. 52 41.41 51.14 56.49 64.3 76.0 1 07.2 127. 8 NRVH 35 - - 155. 7 1 67. 8

R407F R407F R407F R407F

NRV 6 v2 1.5 4.8 11 .5 15.1 0.07 0.33 0.54 0.67 0 .74 0.3 1.0 2.4 3.1 NRVH 6 v2 0.2 0.5 2.0 2.9

NRV 10 v2 8.7 19 .2 31. 0 37. 0 0.07 1.3 4 2.18 2.68 2.96 1.8 3.9 6.4 7.6 NRVH 10 v2 0.0 4.1 7. 0 9.2

NRV 12 v2 28.2 33.4 47. 2 56.4 0.07 2.39 3.83 4.71 5.19 5.8 6.9 9.7 11. 6 NRVH 12 v2 7.9 12. 9 14.1 15 .2

NRV 16 v2 40.7 53.4 75.5 90.2 0.07 3.83 6.14 7.5 4 8.31 8.4 11 .0 15 .6 18 .6 NRVH 16 v2 2.8 15. 0 19.7 22.7

NRV 19 v2 73.3 86.8 122.7 146.6 0. 07 6.22 9.97 12. 25 13. 50 15.2 17. 9 25.3 30.2 NRVH 19 v2 22.6 33.6 36.8 39.6

NRV 22 95.9 113 .4 16 0.4 191. 8 0.07 8 .14 13. 04 16.02 17.66 19. 8 23.5 33 .1 39.4 NRVH 22 - - 4 8.1 51. 9

NRV 28 18 6.1 220. 2 311.4 372. 2 0.07 15. 80 25. 31 31.10 34.27 38.5 45.5 64.2 76.6 NRVH 28 - - 93.4 10 0.7

NRV 35 327.1 3 87.1 547.4 654.3 0.07 2 7.77 44.48 54.66 60.24 67. 7 80.0 112 .9 134 .6 NRVH 35 - - 16 4.1 176 .9

R407H R407H R407H R407H

NRV 6 v2 1.6 5.1 12 .3 16 .2 0.07 0.33 0.54 0.67 0 .74 0.3 1.0 2.4 3.2 NRVH 6 v2 0.2 0.5 2 .1 3.0

NRV 10 v2 9. 3 20.5 33 .1 39. 6 0.07 1.33 2.18 2.69 2.97 1. 8 4.0 6.5 7.8 NRVH 10 v2 0.0 4.2 7.2 9.4

NRV 12 v2 30.2 35.7 50.5 60.3 0. 07 2. 39 3.85 4.73 5.21 6.0 7.0 9.9 11. 8 NRVH 12 v2 8.0 13. 2 14.4 15.6

NRV 16 v2 43.5 5 7.1 80.7 96.5 0.07 3.83 6.15 7. 56 8.34 8.6 11.3 15.9 18. 9 NRVH 16 v2 2.8 15. 3 2 0.1 23.1

NRV 19 v2 78.4 92.8 131.2 156. 8 0 .07 6.23 10. 00 12 .2 9 13.55 15 .5 18. 3 25.8 30.8 NRVH 19 v2 23 .1 34.3 37. 5 40.5

NRV 22 102. 5 121.3 17 1.6 20 5.1 0.07 8.14 13 .07 16.07 17. 71 20.3 24. 0 33.8 40.3 NRVH 22 - - 49.1 52.9

NRV 28 19 9.0 235.5 333.1 39 8.1 0.07 15. 80 25.38 31. 20 34.39 39.3 46.5 65.6 78.2 NRVH 28 - - 95.3 102.7

NRV 35 349.8 413.9 585.4 69 9.7 0.07 27. 78 44.60 54.83 60.44 69.1 81.7 115 .2 137.4 NRVH 35 - - 16 7.5 180.5

1) Rated capacities are based on:

-Evaporating temperature, te = -10 °C.

-Condensing temperature, tc = 30 °C.

-Subcooling t

-Delta superheat tsh = 0 K.

-Discharge temperature, td = 80 °C ahead of the valve. The table values refer to the evaporator capacity.

across valve ∆p

[bar]

NRV NRV NRVH

0.05 0.07 0.14 0.2 -30 -10 0 5 0.05 0.07 0.14 0.2 0.2 0.25 0. 3 0.35

= 5 K.

sub

Pressure

across

valve ∆p

Suction vapour capacity 1)

drop

[bar]

at evaporating

temperature te

[°C]

Correction factors

System capacity.Correction factor=Table capacity

Correction factors for liquid temperature t

[°C]

R407A

R407C

R407F

-10 0 10 15 20 25 30 35 40 45 50

0.71 0.78 0.85 0.90 0.94 1.00 1.06 1.13 1.22 1.32 1.44

0.73 0.79 0.86 0.90 0.95 1.00 1.06 1.13 1.20 1.29 1.40

0.73 0.79 0.86 0.90 0.95 1.00 1.06 1.13 1.20 1.30 1.40

R407H 0.74 0.80 0.87 0.91 0.95 1.00 1.06 1.12 1.19 1.27 1.37

Hot gas capacity 1)

at pressure drop

across valve ∆p

[bar]

Typ e

Hot gas capacity 1)

at pressure drop across valve

Δp

[bar]

AI150286435592en-000702 | 6

Data sheet | Check valve, types NRV and NRVH

Capacity SI units

Liquid capacity (kW) Suction vapour capacity in [kW] Hot gas capacity in [kW] Hot gas capacity in [kW]

Liquid capacity 1)

at pressure drop

Typ e

R448A R448A R448A R448A

NRV 6 v2 1.4 4.4 10.6 13 .8 0.07 0.31 0.51 0.63 0.70 0.3 0.9 2.2 2.9 NRVH 6 v2 0.2 0.4 1.9 2.7

NRV 10 v2 8.0 17. 5 28.3 33.8 0.07 1.26 2.05 2.53 2.79 1.7 3.7 6.0 7.1 NRVH 10 v2 0.0 3.8 6.6 8.6

NRV 12 v2 25.8 30.5 43.2 51.6 0.07 2.25 3.61 4.44 4.90 5.5 6.5 9.1 10.9 NRVH 12 v2 7. 4 12.1 13.2 14. 3

NRV 16 v2 37. 2 48.8 6 9.1 82.5 0.07 3.60 5.78 7.11 7. 84 7. 9 10.3 14. 6 17. 4 NRVH 16 v2 2.6 14.0 18. 4 21.2

NRV 19 v2 67. 1 79.4 112 .2 134.1 0.07 5.86 9.39 11.5 5 12. 73 14. 2 16.8 23.7 28.2 NRVH 19 v2 21. 2 31.5 34.4 37.1

NRV 22 87. 7 103.8 146.7 175. 4 0 .07 7.6 6 12.30 15.14 16. 70 18.6 22.0 31.1 37. 0 NRVH 22 - - 45.1 48.7

NRV 28 17 0. 2 2 01.4 284.9 340.5 0.07 14.87 23.88 29.39 32.42 36.2 42.8 60.3 71.9 NRVH 28 - - 8 7.6 94.5

NRV 35 299.2 354.0 500.7 598.4 0 .07 26.13 41.9 7 51. 66 56.98 63.6 7 5.1 106 .0 126. 3 NRV H 35 - - 15 4.0 166 .0

R449A R449A R449A R449A

NRV 6 v2 1.3 4.3 10.4 13. 7 0.07 0.31 0.51 0.63 0.69 0.3 0.9 2.2 2.9 NRVH 6 v2 0.2 0.4 1.9 2.7

NRV 10 v2 7.9 17. 3 28.0 33.4 0.07 1.25 2.04 2.52 2.78 1. 7 3.7 5.9 7. 0 NRVH 10 v2 0.0 3.8 6.5 8.5

NRV 12 v2 25.5 30 .1 42.6 51.0 0.07 2.24 3.59 4.42 4.88 5.4 6.4 9.0 10.7 NRVH 12 v2 7.3 12. 0 13 .1 14 .1

NRV 16 v2 36.8 48.2 68.2 81.5 0.07 3.58 5.75 7. 08 7. 80 7. 8 10.2 14. 4 17. 2 NRVH 16 v2 2.6 13. 8 18 .2 20.9

NRV 19 v2 66.3 78 .4 110 .9 13 2.5 0.07 5.82 9. 34 11. 50 12 .68 14.0 16.6 23.4 2 7.9 NRVH 19 v2 20.9 31.1 34.0 36.7

NRV 22 86.6 102. 5 145.0 173.3 0.07 7. 61 12 .2 2 15. 04 16.59 18.4 21.7 30.6 36.5 NRVH 22 - - 44.5 4 7.9

NRV 28 168 .2 19 9.0 281.4 336 .4 0.07 14.77 23.71 29.19 32.20 35.6 42.1 59.4 70.8 NRVH 28 - - 86.4 93.1

NRV 35 295.6 349.7 494.6 591. 2 0. 07 25.95 41.68 51.30 56.59 62.7 74 .1 104 .4 124.5 NRVH 35 - - 151.8 16 3.6

R449B R449B R449B R449B

NRV 6 v2 1.4 4.4 10.6 13 .8 0.07 0.31 0.51 0.63 0.70 0.3 0.9 2.2 2.9 NRVH 6 v2 0.2 0.4 1.9 2.7

NRV 10 v2 8.0 17. 6 28.4 33.9 0.07 1.26 2.06 2.54 2.80 1.7 3.7 6.0 7.1 NRVH 10 v2 0.0 3.8 6.6 8.6

NRV 12 v2 25.8 30.6 43.2 51.7 0.07 2.26 3.63 4.46 4.92 5.5 6.5 9.1 10. 8 NRVH 12 v2 7. 3 12.1 13.2 14. 2

NRV 16 v2 37. 3 48.9 69.2 82.7 0.07 3.62 5.80 7.14 7. 87 7.9 10. 3 14. 6 17. 3 NRVH 16 v2 2.6 14. 0 18.4 21. 2

NRV 19 v2 67. 2 79.5 112 .4 13 4.3 0.07 5.88 9. 43 11.6 0 12. 80 14.2 16. 8 23.6 28.2 N RVH 19 v2 21.1 31.4 34.4 37.0

NRV 22 87. 8 103.9 14 7.0 17 5.7 0.07 7.68 12 .33 15.17 16. 73 18.6 21.9 30.9 36.9 NRVH 22 - - 45.0 48.4

NRV 28 17 0.5 201.7 285.3 341.0 0.07 14 .92 23.9 4 29.45 32.48 36.0 42. 6 60.0 71.6 NRVH 28 - - 87. 3 94.0

NRV 35 29 9.7 354.6 501. 5 599.4 0. 07 26.22 42.07 51.76 57. 09 63.3 74. 8 105.5 125 .8 NRVH 35 - - 153.4 16 5.3

R450A R450A R450A R450A

NRV 6 v2 1.3 4.3 10. 2 13. 4 0.07 0 .19 0.35 0.45 0.50 0.2 0.6 1.5 2.0 NRV H 6 v2 0.1 0.3 1. 3 1.8

NRV 10 v2 7. 7 16 .9 27. 3 32.7 0. 07 0.79 1.42 1. 80 2.02 1.2 2.6 4.1 4.9 NRVH 10 v2 0.0 2.6 4.5 5.9

NRV 12 v2 24.9 29.5 41.7 49.8 0.07 1.4 8 2.54 3.20 3.57 3.8 4.5 6.3 7.5 NRVH 12 v2 5.1 8.3 9.1 9.8

NRV 16 v2 35.9 47. 2 66.7 79.7 0.07 2.36 4.06 5.12 5.71 5.5 7. 2 10.1 12 .0 NRVH 16 v2 1.8 9.5 12. 5 14.4

NRV 19 v2 64.8 76.6 108 .4 12 9.5 0.07 3.84 6.60 8.32 9.28 9.9 11 .7 16 .4 19. 5 NRVH 19 v2 14.6 21.7 23.6 25.4

NRV 22 84.8 10 0.3 141.9 169.6 0.07 5.01 8.62 10.89 12 .14 12 .9 15.3 21.5 25.5 NRVH 22 - - 30.9 33. 2

NRV 28 164.6 194.8 275.5 329.2 0.07 9.72 16 .74 21.13 23.57 25.1 29.6 41.6 49.5 NRVH 28 - - 60.0 6 4.5

NRV 35 289.3 342. 3 484.2 578.7 0.07 17.09 29.42 3 7.14 41.43 4 4.1 52 .1 73.2 8 7.0 NRVH 35 - - 105.5 113. 4

1) Rated capacities are based on:

-Evaporating temperature, te = -10 °C.

-Condensing temperature, tc = 30 °C.

-Subcooling t

-Delta superheat tsh = 0 K.

-Discharge temperature, td = 80 °C ahead of the valve. The table values refer to the evaporator capacity.

across valve ∆p

[bar]

NRV NRV NRVH

0.05 0.07 0.14 0.2 -30 -10 0 5 0.05 0.07 0.14 0.2 0.2 0.25 0. 3 0.35

= 5 K.

sub

Pressure

across

valve ∆p

Suction vapour capacity 1)

drop

[bar]

at evaporating

temperature te

[°C]

Correction factors

System capacity.Correction factor=Table capacity

Correction factors for liquid temperature t

tl [°C]

R448A

R449A

R449B

R450A

-10 0 10 15 20 25 30 35 40 45 50

0.71 0.78 0.85 0.90 0.94 1.00 1.06 1.13 1.22 1.32 1.44

0.71 0.77 0.85 0.89 0.94 1.00 1.06 1.14 1.22 1.32 1.44

0.71 0.78 0.85 0.90 0.94 1.00 1.06 1.13 1.22 1.32 1.44

0.72 0.79 0.86 0.90 0.95 1.00 1.06 1.12 1.20 1.28 1.38

Hot gas capacity 1)

at pressure drop

across valve ∆p

[bar]

Typ e

Hot gas capacity 1)

at pressure drop across valve

Δp

[bar]

AI150286435592en-000702 | 7

+ 14 hidden pages