Danfoss Electronics WVFX, WVS Data Sheet

Data sheet

Pressure operated water valve Type WVFX and WVS

Pressure operated water valves types WVFX and WVS are used for regulating the ﬂow of water in refrigeration plants with water-cooled condensers.

The pressure operated water valves give modulating regulation of the condensing pressure within deﬁned limits during operation. When the refrigeration plant is stopped, the cooling water ﬂow is shut oﬀ automatically.

Pressure operated water valves can be used with ﬂammable refrigerants. Double sealing between the refrigerant and the water line ensures that in case the bellows damage and the refrigerant leak, it cannot enter into the water. This severely limits the safety implications. It means that the valve can be used together with a double walled heat exchanger and water circuit in such a system does not need to be considered as a part of the installation for ﬂammable refrigerants (EN378-1:2008, clause 4.4.2.2).

Features • Media: Fresh water and Neutral brine

• Refrigerants: HCFC, HFC and HC

• Needs no power supply – self acting

• Opens on rising condensing pressure

• Complete ﬂow range from 1.4 – 300 m3/h

• Low ﬂow version of WVFX – 0,63 m3/h, (available on request)

• Insensitive to dirt

• WVFX 10 – 25 are available in stainless steel housing

• Suitable for ﬂammable refrigerants

• May be used in the following EX range: Category 3 (Zone 2)

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Data sheet | Pressure operated water valve, types WVFX and WVS

Technical data

Condenser side Liquid side

Typ e

Refrigerant

Control

press.

adjustable

opening

press.

Max. working pressure PS/MWP

Max.

test

pressure

Media

Max. working pressure PS/MWP

Max.

test

pressure

Kv value 1)

[bar] [bar] [bar] [bar] [bar] [m3/h]

WV FX 10

3.5 – 16.0 26.4 29.0

16 24 1.4

WVFX 10 2) 4.0 – 23.0 26.4 29.0 16 24 1.4

WV FX 10 15.0 – 29.0 45.2 60.0 16 24 1.4

WVFX 15 3.5 – 16.0 26.4 29.0 16 24 1.9

WVFX 15 2) 4.0 – 23.0 26.4 29.0 16 24 1.9

WVFX 15 15.0 – 29.0 45.2 60.0 16 24 1.9

WVFX 20 3.5 – 16.0 26.4 29.0 16 24 3.4

WVFX 20 2) 4.0 – 23.0 26.4 29.0 16 24 3.4

WVFX 20 15.0 – 29.0 45.2 60.0 16 24 3.4

WVFX 25 3.5 – 16.0 26.4 29.0 16 24 5.5

WVFX 25 2) 4.0 – 23.0 26.4 29.0 16 24 5.5

WVFX 25 15.0 – 29.0 45.2 60.0 16 24 5.5

WVFX 32 4.0 – 17.0 24.1 26.5 10 10 11. 0

WVFX 40 4.0 – 17.0 24.1 26.5 10 10 11.0

WVS 32 2.2 – 19.0 26.4 29.0

WVS 32 15.0 – 29.0 45.2 60.0 10 16 12.5

WVS 40 2.2 – 19.0 26.4 29.0 10 16 21.0

WVS 40 15.0 – 29.0 45.2 60.0 10 16 21.0

R22 , R127 0,

R13 4a, R 29 0,

R404A, R4 07A, R407C,

R407 F,

R410A 4),

R448A, R449A, R450A, R452A, R507A,

R513A, R600,

R600a,

R717 5)

WVS 50 2.2 – 19.0 26.4 29.0 10 16 32.0

WVS 50 15.0 – 29.0 45.2 60.0 10 16 32.0

WVS 65 2.2 – 19.0 26.4 29.0 10 16 45.0

WVS 65 15.0 – 29.0 45.2 60.0 10 16 45.0

Fresh

water,

neutral

brine, sea

water 3)

10 16 12.5

Fresh

water,

neutral

brine

WVS 80 2.2 – 19.0 26.4 29.0 10 16 80.0

WVS 80 15.0 – 29.0 45.2 60.0 10 16 80.0

WVS 100 2.2 – 19.0 26.4 29.0 10 16 125.0

WVS 100 15.0 – 29.0 45.2 60.0 10 16 125. 0

 The Kv value is the ﬂow of water in [m3/h] at a pressure drop across valve of 1 bar, ρ = 1000 kg/m3.

 Fully open valve requires 33% higher pressure than a WVFX, range 3.5 – 16 bar.

 WVFX 15, WVFX 20 and WVFX 25 with stainless steel housing only.

) High pressure refrigerants version (45,2 MWP) only

) WVS, WVFX 10 – 25 and WVO with ﬂare connection only; versions with capillary tube or with solder connections are not compatible

with R717. WVFX 32 and WVFX 40 are not compatible with R717

WVFX 10 – 40 are direct actuated valves. WVS 32 – 100 are servo-operated valves.

Media temperature range

WVFX 10 – 25: -25 – 130 °C WVFX 32 – 40: -25 – 90 °C WVS: -25 – 90 °C If a WVS is required with an opening diﬀerential pressure of 1 – 10 bar, the valve servo spring must be replaced. See “Ordering”.

Opening diﬀerential pressure WVFX 10 – 25: max. 10 bar WVFX 32 – 40: max. 10 bar WVS 32 – 40: min. 0.5 bar; max. 4 bar WVS 50 – 100: min. 0.3 bar; max. 4 bar Below 20% of max. capacity the WVS will act as an on-oﬀ regulator.

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Data sheet | Pressure operated water valve, types WVFX and WVS

Ordering WVFX, commercial type

Typ e

Code no.

Water side Condenser side [bar]

WVFX 10 G ³⁄₈ ¼ in. / 6 mm ﬂare 3.5 – 16 003N1100

WVFX 10 G ³⁄₈ ¼ in. / 6 mm ﬂare 4.0 – 23 003 N110 5

WVFX 15 G ½ ¼ in. / 6 mm ﬂare 3.5 – 16 003N2100

WVFX 15 G ½ ¼ in. / 6 mm ﬂare 4.0 – 23 003N2105

WVFX 15 G ½ ¼ in. / 6 mm ﬂare nut 4.0 – 23 003N2205 2)

WVFX 20 G ¾ ¼ in. / 6 mm ﬂare 3.5 – 16 003N3100

WVFX 20 G ¾ ¼ in. / 6 mm ﬂare 4.0 – 23 0 03N3105

WVFX 20 G ¾ ¼ in. / 6 mm ﬂare nut 4.0 – 23 003N3205 2)

WVFX 25 G 1 ¼ in. / 6 mm ﬂare 3.5 – 16 003N4100

WVFX 25 G 1 ¼ in. / 6 mm ﬂare 4.0 – 23 003N4105

WVFX 32 G 1 ¼ ¼ in. / 6 mm ﬂare 4.0 – 17 0 03F12 32

WVFX 40 G 1 ½ ¼ in. / 6 mm ﬂare 4.0 – 17 003F1240

Connection 1) Range

 ISO 228-1

 WVFX 15 with 1 m capillary tube and ﬂare nut with valve depressor

WVFX, maritime type (stainless steel version)

Typ e

Water side Condenser side [bar]

WVFX 15 G ½ ¼ in. / 6 mm ﬂare 3.5 – 16 003N2101

WVFX 15 G ½ ¼ in. / 6 mm ﬂare 4.0 – 23 003N2104

WVFX 20 G ¾ ¼ in. / 6 mm ﬂare 4.0 – 23 0 03N3104

WVFX 25 G 1 ¼ in. / 6 mm ﬂare 3.5 – 16 003N 4101

WVFX 25 G 1 ¼ in. / 6 mm ﬂare 4.0 – 23 003N4104

 ISO 228-1

Connection 1) Range

Code no.

WVFX, commercial type (high pressure refrigerants, MWP 45.2 bar)

Typ e

Water side Condenser side [bar]

WV FX 10 G ³⁄₈ ¼ in. / 6 mm ﬂare 15.0 – 29.0 003N1410

WVFX 15 G ½ ¼ in. / 6 mm ﬂare 15.0 – 29.0 003N2410

WVFX 20 G ¾ ¼ in. / 6 mm ﬂare 15.0 – 29.0 003N3410

WVFX 25 G 1 ¼ in. / 6 mm ﬂare 15.0 – 29.0 0 03N4410

) ISO 228-1

Connection 1) Range

Code no.

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Data sheet | Pressure operated water valve, types WVFX and WVS

Ordering

(continued)

WVS, commercial type

Code no.

Typ e Connection 1)

Valve body Pilot unit 3)

WVS 32 G 1 1⁄2 1) 016D5032 016D1017 016D1018 – 016D1327

WVS 40 G 1 1⁄2 1) 016D5040 016D1017 016D1018 – 016D0575

WVS 50 2 in. weld ﬂange 016D5050 2) 016D1017 016D1018 027N3050 016D0576

WVS 65 2 1⁄2 in. weld ﬂange 016D5065 2) 016D1017 016D1018 027N3065 016D0577

WVS 80 3 in. weld ﬂange 016D5080 2) 016D1017 016D1018 027N3080 016D0578

WVS 100 4 in. weld ﬂange 016D5100 2) 016D1017 016D1018 027N3100 016D0579

) ISO 228–1 ) Parts included: valve body, ﬂange gaskets, ﬂange bolts and screws for pilot valve. ) Parts included: control element and spring housing. ) Parts included: 2 ﬂanges

Pilot unit for

R410A and

R744 3)

Flange set 4)

Servo spring for

diﬀerential

pressure range

of 1 – 10 bar

Accessories

Description Code no.

1 m capillary tube 1⁄4 in. (6 mm) ﬂare coupling nuts at each end 06 0- 01716 6 Bracket for WVFX 10 – 25 003N0388

Installation WVS and WVFX 32, WVFX 40 is to be ﬁtted in the

cooling water inlet with ﬂow in the direction of the arrow and with the bellows element facing upwards. Horizontal mounting is a must.

WVFX 10, WVFX 15 and WVFX 25 can be mounted in any position. Horizontal mounting is not required.

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