Danfoss SVA-S SS, SVA-L SS, REG-SA, REG-SB SS, SCA-X SS Data sheet

...

Data sheet

Industrial Refrigeration Stainless Steel Valves

Shut-oﬀ valves SVA-S/L SS Hand-operated regulating valves REG-SA/SB SS Check & stop valves SCA-X SS Check Valves CHV-X SS Strainers FIA SS Pressure regulating valves OFV-SS Gauge valves SNV-SS Solenoid valves EVRS/EVRST

Danfoss Industrial Refrigeration extends a range of stainless steel valves for special application requirements.

The valve range includes for valve sizes DN 15 mm (1/2 in.) to DN 125 mm (5 in.) in angleway and straight execution and includes:

The range has been extended to meet the increased demand brought about by

1. the need for higher protection of external surfaces on valves and ﬁttings

2. the need to meet developments in the way that plants are being designed.

In certain speciﬁc areas such as outdoor applications and corrosive atmospheres, such as coastal installations, there is a need for high surface protection to prevent failure due to corrosion.

Today's food safety standards often call for daily treatment with detergents to protect against bacteria growth, again producing a need for high surface protection.

Features

• Optional accessories:

SVA-S/L SS X X

REG-SA/SB SS X

SCA-X SS X

CHV-X SS

FIA SS

OFV-SS X

Vented cap Handwheel

• Designed to give favourable ﬂow conditions.

• Internal backseating enables replacement of the spindle seal whilst the valve is active, i.e. under pressure (SVA-S/L SS, REG-SA/SB SS, SCA-X SS, OFV-SS).

• Housing is made of special cold resistant stainless steel approved for low temperature operations.

• Easy to disassemble for inspection and service.

• SVA-S/L SS Shut-oﬀ valves can accept ﬂow in either direction.

• Compact and light valves for easy handling and installation.

• Classiﬁcation: DNV, CRN, BV, EAC etc. To get an updated list of certiﬁcation on the products please contact your local Danfoss Sales Company.

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Data sheet | Stainless Steel Valves 15 (½ in.) - 125 ( 5 in.)

Contents Page

Shut-oﬀ valves SVA-S/L SS:

Features SVA-S/L SS ................................................................................................3

Pressure and temperature range....................................................................................3

Technical data .....................................................................................................3

Design.............................................................................................................4

Connections .......................................................................................................4

Material speciﬁcation ..............................................................................................5

Dimensions and weights ...........................................................................................9

Ordering......................................................................................................... 12

Hand-operated regulating valves REG-SA SS and REG-SB SS:

Features REG-SA SS and REG-SB SS................................................................................ 14

Pressure and temperature range.................................................................................. 14

Technical data ...................................................................................................14

Design........................................................................................................... 15

Connections ..................................................................................................... 15

Computation and selection....................................................................................... 16

Material speciﬁcation ............................................................................................ 22

Dimensions and weights ......................................................................................... 23

Ordering......................................................................................................... 24

Check & stop valves and check valves SCA-X SS and CHV-X SS:

Features SCA-X SS and CHV-X SS.................................................................................. 26

Pressure and temperature range.................................................................................. 26

Technical data ...................................................................................................26

Design........................................................................................................... 27

Connections ..................................................................................................... 27

Material speciﬁcation ............................................................................................ 28

Dimensions and weights ......................................................................................... 29

Ordering......................................................................................................... 30

Strainers FIA SS:

Features FIA SS................................................................................................... 31

Pressure and ....................................................................................................31

temperature range............................................................................................... 31

Technical data ...................................................................................................31

Design........................................................................................................... 32

Connections ..................................................................................................... 32

Selection of strainer size.......................................................................................... 33

Material speciﬁcation ............................................................................................ 34

Dimensions and weights ......................................................................................... 35

Ordering......................................................................................................... 36

Pressure regulating valves OFV-SS:

Features OFV-SS..................................................................................................37

Technical data ...................................................................................................37

Design........................................................................................................... 38

Connections ..................................................................................................... 38

Material speciﬁcation ............................................................................................ 39

Dimensions and weights ......................................................................................... 40

Ordering......................................................................................................... 41

Gauge valve SNV-SS:

Features SNV-SS..................................................................................................42

Technical data ...................................................................................................42

Design........................................................................................................... 42

Connections ..................................................................................................... 42

Material speciﬁcation ............................................................................................ 43

Dimensions and weights ......................................................................................... 44

Ordering......................................................................................................... 44

Solenoid valves EVRS and EVRST:

Features EVRS and EVRST......................................................................................... 45

Technical data ...................................................................................................45

Design/Function ................................................................................................. 47

Material speciﬁcation ............................................................................................ 48

Dimensions and weights ......................................................................................... 49

Ordering......................................................................................................... 50

AI235186440137en-US1101 | 2

Data sheet | Stainless Steel Valves 15 (½ in.) - 125 ( 5 in.)

Pressure

Temperature

psi

bar

Shut-oﬀ valves SVA-S/L SS

Features SVA-S/L SS

In certain speciﬁc areas such as outdoor applications and corrosive atmospheres, such as coastal installations, there is a need for high surface protection to prevent failure due to corrosion.

Today's food safety standards often call for daily treatment with detergents to protect against bacteria growth, again producing a need for high surface protection.

SVA-S/L SS are angleway and straightway stainless steel shut-oﬀ valves, which are designed to meet all industrial refrigeration application requirements.

The valves are designed to give favourable ﬂow characteristics and are easy to dismantle and repair when necessary. The valve cone is designed to ensure perfect closing.

• Applicable to HCFC, HFC, R717 (Ammonia), R744 (CO2) and all ﬂammable refrigerants.

• Optional accessories:

– Heavy duty industrial hand wheel for

frequent operation.

– Cap for infrequent operation.

• Available in angleway and straightway versions with Standard neck or Long neck (DN 15 to DN 40) for insulated systems.

• Designed to give favourable ﬂow conditions.

• Internal backseating enables replacement of the spindle seal whilst the valve is active, i.e. under pressure.

• Housing is made of stainless steel approved for low temperature operations.

• Easy to disassemble for inspection and service.

• SVA-S/L SS shut-oﬀ valves can accept ﬂow in either direction.

• Butt-weld DIN and ANSI connections.

• Maximum allowable working pressure and temperature range:

DN 15-65 52 bar / 754 psi at -60 – 50 °C / -76 – 122 °F DN 80-125 50 bar / 725 psi at -60 – 50 °C / -76 – 122 °F

For SVA-S/L SS see the relation between PS and temperature in the below curve.

• Tem perature range:

-60 – 150 °C / -76 – 302 °F.

• Compact and light valves for easy handling and installation.

• Classiﬁcation: DNV, CRN, BV, EAC etc. To get an updated list of certiﬁcation on the products please contact your local Danfoss Sales Company.

Pressure and temperature range

Technical data • Refrigerants

798

725

653

580

508

435

363

Pressure

290

218

145

-70

-50-30 -101030507090 110 130 150

-94-58 -22145086 122 158 194 230 266 302

˚C

˚F

• Pressure range Applicable to HCFC, HFC, R717 (Ammonia), R744 (CO2) and all ﬂammable refrigerants.

SVA-S/L SS DN15-DN65 SVA-S SS DN80 - DN125

The valves are designed for max. working

pressure 52 bar g / 754 psi g. For further information please contact your local Danfoss Sales Company.

• Temperature Range

-60 – 150 °C / -76 – 302 °F.

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Data sheet | Stainless Steel Valves 15 (½ in.) - 125 ( 5 in.)

Design

Connections

Available with the following connections:

• Butt-weld DIN (EN 10220) DN 15 – 125 (½ – 5 in.)

• Butt-weld ANSI (B 36.19M) DN 15 – 100 (½ – 4 in.)

Housing

Made of stainless steel approved for low temperature operations.

Valve cone

The valve cone can be turned on the spindle, thus there will be no friction between the cone and the seat, when the valve is opened and closed. A teﬂon tightening ring provides perfect sealing at a minimum closing momentum.

Spindle

Made of polished stainless steel, ideal for O-ring sealing. Furthermore, parts of the spindle are heat treated to obtain anti-abrasive / adhesive properties.

Packing gland

The stainless steel packing gland comprises a spring loaded seal packing gland which ensures a perfect tightness in the range:

-60 – 150 °C / -76 – 302 °F.

The packing glands are equipped with a scraper ring to prevent penetration of dirt and ice into the packing gland.

Pressure Equipment Directive (PED)

The stainless steel valves are approved and CE marked in accordance with the Pressure Equipment Directive - 97/23/EC.

Installation

It is recommended that the valves be installed in the direction of ﬂow indicated by the arrow on the valve body. The valve can be installed in the opposite direction but this slightly reduces the kv-value (Cv-value).

The valve is designed to withstand high internal pressure. However, the piping system in general should be designed to avoid liquid traps and reduce the risk of hydraulic pressure caused by thermal expansion.

For further information refer to installation instructions for SVA-S/L SS.

–



”

Example of Marking Ring

Connections

DIN

ANSI

SVA-S/L SS

Nominal bore DN≤ 25 mm (1 in.) DN32-80 mm (1 ¼ – 3 in.) DN100 – 125 mm (4 – 5 in.)

Classiﬁed for Fluid group I

Category Article 3, paragraph 3 II III

Size OD T

Butt-weld DIN (EN 10220)

15 mm 21.3 2.3 ½ in. 0.839 0.091 20 mm 26.9 2.3 ¾ in 1.059 0.091 25 mm 33.7 2.6 1 in. 1.327 0.103 32 mm 42.4 2.6 1 ¼ in. 1.669 0.102 40 mm 48.3 2.6 1 ½ in. 1.902 0.103 50 mm 60.3 2.9 2 in. 2.37 0.11 65 mm 76.1 2.9 2 ½ in. 3 0.11 80 mm 88.9 3.2 3 in. 3.50 0.13 100 mm 114.3 3.6 4 in. 4.50 0.14 125 mm 139.7 4.0 5 in. 5.50 0.16

Size OD T

Butt-weld ANSI B 36.19M, SCHEDULE 40

15 mm 21.3 2.8 ½ in. 0.839 0.11 20 mm 26.9 2.9 ¾ in 1.06 0.11 25 mm 33.7 3.5 1 in. 1.33 0.14 32 mm 1 ¼ in. 1.67 0.14 40 mm 48.3 3.7 1 ½ in. 1.9 0.15

42.4 3.6

Butt-weld ANSI B 36.19M, SCHEDULE 10

50 mm 60.3 2.8 2 in. 2.37 0.11 65 mm 73 3.1 2 ½ in. 2.87 0.12 80 mm 88.9 3.1 3 in. 3.5 0.12 100 mm 114.3 3.1 4 in. 4.5 0.12

AI235186440137en-US1101 | 4

Data sheet | Stainless Steel Valves 15 (½ in.) - 125 ( 5 in.)

Danfoss

M148B0035_1

M148B0038_1

Material speciﬁcation

SVA-S SS 15 – 40 (½ – 1 ½ in.)

Danfoss

No. Part Material EN ISO ASTM

1 Housing Stainless steel GX5CrNi19-10

AISI 304

EN10213-4

2 Bonnet, Flange Stainless steel X5CrNi18-10

AISI 304

EN10088

3 Bonnet, Insert Stainless steel X8CrNiS18-9

AISI 303

DIN 17440

4 Spindle

Stainless steel X8CrNiS18-9

Type 17, 683/13 AISI 303

DIN 17440

5 Cone Steel

8 Packing gland Stainless steel X8CrNiS18-9

10088

Type 17 683/13

AISI 303

9 Packing washer Aluminium

10 O-ring Cloroprene (Neoprene)

11 Spring loaded Teﬂon ring PTFE

12 Bolts Stainless steel A2-70 A2-70 Type 308

13 Gasket Fiber, Non-asbestos

14 Handwheel Steel

17 Cap Aluminium

18 Gasket for cap Nylon

20 Identiﬁcation ring Stainless steel

21 Disk spring Steel

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Data sheet | Stainless Steel Valves 15 (½ in.) - 125 ( 5 in.)

M148B0040_1

Material speciﬁcation

SVA-L SS 15 – 40 (½ – 1 ½ in.)

Danfoss

No. Part Material EN ISO ASTM

1 Housing Stainless steel GX5CrNi19-10

AISI 304

EN10213-4

2 Bonnet, Flange Stainless steel X5CrNi18-10

AISI 304

EN10088

3 Bonnet, Insert Stainless steel X8CrNiS18-9

AISI 303

DIN 17440

4 Spindle

Stainless steel X8CrNiS18-9

Type 17, 683/13 AISI 303

DIN 17440

5 Cone Steel

8 Packing gland Stainless steel X8CrNiS18-9

10088

Type 17 683/13

AISI 303

9 Packing washer Aluminium

10 O-ring Cloroprene (Neoprene)

11 Spring loaded Teﬂon ring PTFE

12 Bolts Stainless steel A2-70 A2-70 Type 308

13 Gasket Fiber, Non-asbestos

14 Handwheel Steel

17 Cap Aluminium

18 Gasket for cap Nylon

20 Identiﬁcation ring Stainless steel

21 Disk spring Steel

AI235186440137en-US1101 | 6

Data sheet | Stainless Steel Valves 15 (½ in.) - 125 ( 5 in.)

M148B0039_1

M148B0036_1

Material speciﬁcation

SVA-S SS 50 – 65 (2 – 2 ½ in.)

Danfoss

No. Part Material EN ISO ASTM

1 Housing Stainless steel GX5CrNi19-10

AISI 304

EN10213-4

3 Valve bonnet Stainless steel GX5CrNi19-10

AISI 304

EN10213-4

4 Spindle

Stainless steel X8CrNiS18-9

Type 17, 683/13 AISI 303

DIN 17440

5 Cone Steel

8 Packing gland Stainless steel X8CrNiS18-9

10088

Type 17 683/13

AISI 303

9 Packing washer Aluminium

10 O-ring Cloroprene (Neoprene)

11 Spring loaded Teﬂon ring PTFE

12 Bolts Stainless steel A2-70 A2-70 Type 308

13 Gasket Fiber, Non-asbestos

14 Handwheel Steel

17 Cap Aluminium

18 Gasket for cap Nylon

19 Locking nut Steel

20 Identiﬁcation ring Stainless steel

21 Disk spring Steel

AI235186440137en-US1101 | 7

Data sheet | Stainless Steel Valves 15 (½ in.) - 125 ( 5 in.)

Danfoss

M148B0096_1

M148B0006_1

Material speciﬁcation

SVA-S SS 80 – 125 (3 – 5 in.)

Danfoss

No. Par t Material EN ISO ASTM

1 Housing Stainless steel GX5CrNi19-10

AISI 304

EN10213-4

3 Valve bonnet Stainless steel GX5CrNiMo19-11-2

AISI 304

EN10213-4

4 Spindle

Stainless steel X5CrNi18-10

Type 17, 683/13 AISI 303

DIN 17440

5 Cone

Cone seal

8 Packing gland Stainless steel X8CrNiS18-9

Steel Teﬂon (PTFE)

10088

Type 17 R 683/13

AISI 303

9 Packing washer Aluminium

10 O-ring Cloroprene (Neoprene)

11 Spring loaded Teﬂon ring PTFE

12 Bolts Stainless steel A2-70 A2-70 Type 308

13 Gasket Fiber, Non-asbestos

14 Hand wheel Steel

17 Cap Aluminium

18 Gasket for cap Nylon (PA 6)

19 Soft backseat Teﬂon (PTFE)

20 Identiﬁcation ring Stainless steel

22 Disk spring Steel

AI235186440137en-US1101 | 8

Data sheet | Stainless Steel Valves 15 (½ in.) - 125 ( 5 in.)

Dimensions and weights

SVA S SS 15 - 40 (½ – 1 ½ in. ) in angleway version with cap / hand wheel

SVA-xx x x ANG CAP

Valve size K C

max .1Cmax .2

G ØD1ØD

SVA-S SS

SVA-S SS 15 – 20 mm 4 178 189 45 60 38 60 1.4 kg

SVA-S SS 1/2 – 3/4" in. 0.16 7.00 7.44 1.77 2.36 1.5 2.36 3.1 lbs

SVA-S SS 25 – 40 mm 12 234 268 55 80 50 70 2.4 kg

SVA-S SS 1 – 11/2" in. 0.47 9.21 10.55 2.17 3.15 1.97 2.76 5.3 lbs

Speciﬁed weights are approximate values only.

SVA-xx x x ANG H-WHEEL

H

Weight

SVA-S/L SS 15 - 40 (½ – 1½ in. ) straightway version with cap / hand wheel

SVA-xx x x STR CAP

Valve size K C

max.1Cmax.2Bmax.1Bmax.2

SVA-xx x x STR H-WHEEL

E G ∅D1 ∅D

Weight

H

SVA-S SS

SVA-S SS 15 - 20 mm 4 146 141 160 156 20 120 60 38 60 2.0 kg SVA-S SS (½ – ¾) in. 0.16 5.74 5.55 6.30 6.14 0.79 4.72 2.36 1.50 2.36 4.4 lb

SVA-S SS 25 – 40 mm 12 199 208 212 222 26 155 80 50 70 3.0 kg SVA-S SS (1 – 1 ½) in. 0.47 7.83 8.19 8.35 8.74 1.02 6.10 3.15 1.97 2.76 6.6 lb

SVA-L SS

SVA-L SS 15 – 20 mm 63 188 184 202 198 20 120 60 38 60 2.0 kg SVA-L SS (½ – ¾) in. 2.48 7.40 7.24 7.95 7.80 0.79 4.72 2.36 1.50 2.36 4.4 lb

SVA-L SS 25 – 40 mm 74 243 252 256 265 26 155 80 50 70 3.0 kg SVA-L SS (1 – 1 ½) in. 2.91 9.57 9.92 10.08 10.43 1.02 6.10 3.15 1.97 2.76 6.6 lb

Speciﬁed weights are approximate values only.

AI235186440137en-US1101 | 9

Data sheet | Stainless Steel Valves 15 (½ in.) - 125 ( 5 in.)

Dimensions and weights

SVA-S SS 50 – 65 (2 – 2 ½ in.) in angleway version with cap / hand wheel

SVA-xx x x ANG CAP

Valve size K C

max.1Cmax.2

SVA-xx x x ANG H-WHEEL

G ∅D1 ∅D2

H

Weight

SVA-S SS

SVA-S SS 50 mm 70 284 315 60 100 50 77 3.2 kg SVA-S SS (2) in. 2.76 11.18 12.40 2.36 3.94 1.97 3.03 7.1 lb

SVA-S SS 65 mm 70 310 335 70 100 50 90 4.8 kg SVA-S SS (2 ½) in. 2.76 12.20 13.19 2.76 3.94 1.97 3.54 10.6 lb

Speciﬁed weights are approximate values only.

SVA-S SS 50 – 65 (2 – 2 ½ in.) in straightway version with cap / hand wheel

SVA-xx x x STR CAP

SVA-xx x x STR H-WHEEL

Valve size K B

max.1Bmax.2Cmax.1Cmax.2

E G ∅D1 ∅D

Weight

H

SVA-S SS

SVA-S SS 50 mm 70 259 259 257 257 32 148 100 50 77 4.2 kg SVA-S SS (2) in. 2.76 10.20 10.20 10.12 10.12 1.26 5.83 3.94 1.97 3.03 9.3 lb

SVA-S SS 65 mm 70 284 280 284 280 40 176 100 50 90 6.3 kg SVA-S SS (2 ½) in. 2.76 11.18 11.02 11.18 11.02 1.57 6.93 3.94 1.97 3.54 13.9 lb

Speciﬁed weights are approximate values only.

AI235186440137en-US1101 | 10

Data sheet | Stainless Steel Valves 15 (½ in.) - 125 ( 5 in.)

Dimensions and weights SVA-S SS 80 – 125 (3 – 5 in.) angleway version with cap / hand wheel

SVA-xx x x ANG CAP

Valve size K C

SVA-S SS

SVA-S SS 80 SVA-S SS (3)mmin.

SVA-S SS 100 SVA-S SS (4)mmin.

SVA-S SS 125 SVA-S SS (5)mmin.

Speciﬁed weights are approximate values only.

3.00

3.54

max.2

388

15.28

437

17.20

533

20.98

G ∅D1∅D2 ∅H Weight

3.54

106

4.17

128

5.04

200

7.87582.28

250

9.84582.28

315

12.40742.91

129

5.08

156

6.14

193

7.60

9.7 kg

21.4 lb

15.3 kg

33.7 lb

28.1 kg

61.9 lb

AI235186440137en-US1101 | 11

Data sheet | Stainless Steel Valves 15 (½ in.) - 125 ( 5 in.)

Ordering

Please note that the type codes only serve to identify the valves, some of which may not form part of the standard product range. For further information please contact your local Danfoss Sales Company.

Type codes

Valve type SVA-S/L SS Shut-oﬀ valve

Nominal size in mm Available connections

(valve size measured on the connection diameter)

Connections D

Valve housing ANG

Other equipment H-WHEEL

15 DN 15 (½) x x

20 DN 20 (¾) x x

25 DN 25 (1) x x

32 DN 32 (1 ¼) x x

40 DN 40 (1 ½) x x

50 DN 50 (2) x x

65 DN 65 (2 ½) x x

80 DN 80 (3) x x

100 DN 100 (4) x x

125 DN 125 (5) x

STR

CAP

Butt-weld connection Butt-weld connection

Angle ﬂow Straight ﬂow

Hand wheel Cap

D A

: DIN EN 10220 : ANSI B 36.19M

Important!

Where products need to be certiﬁed according to speciﬁc certiﬁcation societies or where higher pressures are required, the relevant information should be included at the time of order.

AI235186440137en-US1101 | 12

Data sheet | Stainless Steel Valves 15 (½ in.) - 125 ( 5 in.)

Ordering

Ordering SVA-S/L SS

Example: SVA-S SS 20 DIN angleway with hand wheel = 148B5377

Important!

Where products need to be certiﬁed according to speciﬁc certiﬁcation societies or where higher pressures are required, the relevant information should be included at the time of order.

Size

mm in. bar psi

Type

MWP

Code

number

Butt-weld DIN (EN 10220)

15 ½ SVA-S SS 15 D ANG H-WHEEL 52 754 148B5289 15 ½ SVA-S SS 15 D ANG CAP 52 754 148B5290 20 ¾ SVA-S SS 20 D ANG H-WHEEL 52 754 148B5377 20 ¾ SVA-S SS 20 D ANG CAP 52 754 148B5378 25 1 SVA-S SS 25 D ANG H-WHEEL 52 754 148B5486 25 1 SVA-S SS 25 D ANG CAP 52 754 148B5487 32 1 ¼ SVA-S SS 32 D ANG H-WHEEL 52 754 148B5566 32 1 ¼ SVA-S SS 32 D ANG CAP 52 754 148B5567 40 1 ½ SVA-S SS 40 D ANG H-WHEEL 52 754 148B5646 40 1 ½ SVA-S SS 40 D ANG CAP 52 754 148B5647 50 2 SVA-S SS 50 D ANG H-WHEEL 52 754 148B5753 50 2 SVA-S SS 50 D ANG CAP 52 754 148B5754 65 2 ½ SVA-S SS 65 D ANG H-WHEEL 52 754 148B5847 65 2 ½ SVA-S SS 65 D ANG CAP 52 754 148B5848

80 3 SVA-S SS 80 D ANG CAP 50 725 148B5928 100 4 SVA-S SS 100 D ANG CAP 50 725 148B6032 125 5 SVA-S SS 125 D ANG CAP 50 725 148B6126

Size

mm in. bar psi

Type

MWP

Code

number

Butt-weld ANSI (B 36.19M SCHEDULE 40)

15 ½ SVA-S SS 15 A40 ANG CAP 52 754 148B5396

20 ¾ SVA-S SS 20 A40 ANG CAP 52 754 148B5395

25 1 SVA-S SS 25 A40 ANG CAP 52 754 148B6477

32 1 ¼ SVA-S SS 32 A40 ANG CAP 52 754 148B5595

40 1 ½ SVA-S SS 40 A40 ANG CAP 52 754 148B5683

Size

mm in. bar psi

Type

MWP

Code

number

Butt-weld ANSI (B 36.19M SCHEDULE 10)

50 2 SVA-S SS 50 D/A10 ANG CAP 52 754 148B5754

65 2 ½ SVA-S SS 65 A10 ANG CAP 52 754 148B6448

80 3 SVA-S SS 80 D/A10 ANG CAP 52 754 148B5928 100 4 SVA-S SS 100 A10 ANG CAP 52 754 148B6035

SVA-S SS StraightwaySVA-S SS Angleway

Size

mm in. bar psi

Type

Butt-weld DIN (EN 10220)

15 ½ SVA-S SS 15 D STR H-WHEEL 52 754 148B5291 15 ½ SVA-S SS 15 D STR CAP 52 754 148B5292 20 ¾ SVA-S SS 20 D STR H-WHEEL 52 754 148B5379 20 ¾ SVA-S SS 20 D STR CAP 52 754 148B5380 25 1 SVA-S SS 25 D STR H-WHEEL 52 754 148B5488 25 1 SVA-S SS 25 D STR CAP 52 754 148B5489 32 1 ¼ SVA-S SS 32 D STR H-WHEEL 52 754 148B5568 32 1 ¼ SVA-S SS 32 D STR CAP 52 754 148B5569 40 1 ½ SVA-S SS 40 D STR H-WHEEL 52 754 148B5648 40 1 ½ SVA-S SS 40 D STR CAP 52 754 148B5649 50 2 SVA-S SS 50 D STR H-WHEEL 52 754 148B5755 50 2 SVA-S SS 50 D STR CAP 52 754 148B5756 65 2 ½ SVA-S SS 65 D STR H-WHEEL 52 754 148B5849 65 2 ½ SVA-S SS 65 D STR CAP 52 754 148B5850

Size

mm in. bar psi

Type

Butt-weld ANSI (B 36.19M SCHEDULE 40)

15 ½ SVA-S SS 15 A40 STR CAP 52 754 148B5397 20 ¾ SVA-S SS 20 A40 STR CAP 52 754 148B5398 25 1 SVA-S SS 25 A40 STR CAP 52 754 148B5399 32 1 ¼ SVA-S SS 32 A40 STR CAP 52 754 148B5596 40 1 ½ SVA-S SS 40 A40 STR CAP 52 754 148B5684

Size

mm in. bar psi

Type

Butt-weld ANSI (B 36.19M SCHEDULE 10)

50 2 SVA-S SS 50 D/A10 STR CAP 52 754 148B5756 65 2 ½ SVA-S SS 65 A10 STR CAP 52 754 148B6449

MWP

number

Code

ANG = Angleway STR = Straightway

CAP = Cap H-WHEEL = Hand wheel

Size

mm in. bar psi

Type

MWP

number

Butt-weld DIN (EN 10220)

15 ½ SVA-L SS 15 D ANG H-WHEEL 52 754 148B6546

15 ½ SVA-L SS 15 D ANG CAP 52 754 148B6547

20 ¾ SVA-L SS 20 D ANG H-WHEEL 52 754 148B6550

20 ¾ SVA-L SS 20 D ANG CAP 52 754 148B6551

25 1 SVA-L SS 25 D ANG H-WHEEL 52 754 148B6554

25 1 SVA-L SS 25 D ANG CAP 52 754 148B6555

32 1 ¼ SVA-L SS 32 D ANG H-WHEEL 52 754 148B6558

32 1 ¼ SVA-L SS 32 D ANG CAP 52 754 148B6559

40 1 ½ SVA-L SS 40 D ANG H-WHEEL 52 754 148B6562

40 1 ½ SVA-L SS 40 D ANG CAP 52 754 148B6563

Code

SVA-L SS StraightwaySVA-L SS Angleway

Size

mm in. bar psi

Type

Butt-weld DIN (EN 10220)

15 ½ SVA-L SS 15 D STR H-WHEEL 52 754 148B6548 15 ½ SVA-L SS 15 D STR CAP 52 754 148B6549 20 ¾ SVA-L SS 20 D STR H-WHEEL 52 754 148B6552 20 ¾ SVA-L SS 20 D STR CAP 52 754 148B6553 25 1 SVA-L SS 25 D STR H-WHEEL 52 754 148B6556 25 1 SVA-L SS 25 D STR CAP 52 754 148B6557 32 1 ¼ SVA-L SS 32 D STR H-WHEEL 52 754 148B6560 32 1 ¼ SVA-L SS 32 D STR CAP 52 754 148B6561 40 1 ½ SVA-L SS 40 D STR H-WHEEL 52 754 148B6564 40 1 ½ SVA-L SS 40 D STR CAP 52 754 148B6565

MWP

number

Code

AI235186440137en-US1101 | 13

Data sheet | Stainless Steel Valves 15 (½ in.) - 125 ( 5 in.)

Pressure

Temperature

psi

bar

Hand-operated regulating valves REG-SA SS and REG-SB SS

Features REG-SA SS and REG-SB SS

In certain speciﬁc areas such as outdoor applications and corrosive atmospheres, such as coastal installations, there is a need for high surface protection to prevent failure due to corrosion.

Today's food safety standards often call for daily treatment with detergents to protect against bacteria growth, again producing a need for high surface protection.

REG-SA SS and REG-SB SS are angle-way and straight-way hand-operated regulating valves, which act as normal stop valves in closed position.

The valves are designed to meet the strict quality requirements on refrigerating installations speciﬁed by the international classiﬁcation societies and are carefully designed to present favourable ﬂow conditions and accurate linear characteristics.

The valves are equipped with vented cap and have internal backseating enabling the spindle seal to be replaced with the valve still under pressure.

• Applicable to HCFC, HFC, R717 (Ammonia), R744 (CO2), Propane, Butane, Iso-Butane and Ethane. R717 Heat Pump and Propylene applications with replaced O-ring.

• Designed to give favourable ﬂow conditions.

• Internal backseating enables replacement of the spindle seal whilst the valve is active, i.e. under pressure

• Housing is made of special cold resistant stainless steel approved for low temperature operations.

• Easy to disassemble for inspection and service.

• Butt-weld DIN and ANSI connections.

• Max. operating pressure: 52 bar g / 754 psig

• Tem perature range:

-60 – 150 °C / -76 – 302 °F.

• Compact and light valves for easy handling and installation.

• Classiﬁcation: DNV, CRN, BV, EAC etc. To get an updated list of certiﬁcation on the products please contact your local Danfoss Sales Company.

Pressure and temperature range

Technical data • Refrigerants

798

725

653

580

508

435

363

Pressure

290

218

145

-70

-50-30 -101030507090 110 130 150

-94-58 -22145086 122 158 194 230 266 302

Temperature

˚C

˚F

• Temperature range

Applicable to HCFC, HFC, R717 (Ammonia), R744 (CO2), Propane, Butane, Iso-Butane and Ethane. R717 Heat Pump and Propylene applications with replaced O-ring.

For further information please contact your local

• Max working pressure

• Flow coeﬃcients

Danfoss Sales Company.

REG-SA SS/REG-SB SS DN15-DN40

-60 – 150 °C / -76 – 302 °F

52 bar g / 754 psi g

Flow coeﬃcients for fully opened valves from kv = 0.15 to 80 m3/h (Cv = 0.17 to 92.5 USgal/min).

AI235186440137en-US1101 | 14

Data sheet | Stainless Steel Valves 15 (½ in.) - 125 ( 5 in.)

Design

Housing

Made of stainless steel approved for low temperature operations.

Connections

Available with the following connections:

• Butt-weld DIN (EN 10220) DN 15 - 40 (½ - 1½ in.)

• Butt-weld ANSI (B 36.19M) DN 15 - 40 (½ - 1½ in.)

The cone

The valves are available in two diﬀerent versions – REG-SA SS with an A cone and REGSB SS with a B cone. The A cone is designed for expansion lines, while the B cone is designed for regulating purposes e.g. liquid lines.

The valve cone is designed to ensure perfect regulation and provide an extensive regulating area. Irrespective of the refrigerant used, it is easy to obtain the correct capacity. A cone seal ring provides perfect sealing at a minimum closing momentum.

The valve cone can be turned on the spindle, thus there will be no friction between the cone and the seat when the valve is opened and closed.

Spindle

Made of polished stainless steel, ideal for O-ring sealing. Furthermore, parts of the spindle are heat treated to obtain anti-abrasive/adhesive properties.

Packing gland - REG-SA SS and REG-SB SS

The stainless steel packing gland comprises a spring loaded seal packing gland which ensures a perfect tightness in the range:

-60 – 150 °C / -76 – 302 °F.

The packing glands are equipped with a scraper ring to prevent penetration of dirt and ice into the packing gland.

Installation

Install the valve with the spindle up or in horizontal position. The ﬂow must be directed towards the cone.

For further information refer to product instruction for REG-SA SS and REG-SB SS.

Example of marking ring, REG-SA SS

Connections

DIN

ANSI

Pressure Equipment Directive (PED)

REG-SA/SB SS valves are approved according to the European standard speciﬁed in the Pressure Equipment Directive and are CE marked.

REG-SA SS and REG-SB SS valves

Nominal bore

Classiﬁed for Fluid group I

Category Article 3, paragraph 3 II

Size OD T

Butt-weld DIN (EN 10220)

15 mm 21.3 2.3 ½ in. 0.839 0.091 20 mm 26.9 2.3 ¾ in 1.059 0.091 25 mm 33.7 2.6 1 in. 1.327 0.103 32 mm 42.4 2.6 1¼ in. 1.669 0.102 40 mm 48.3 2.6 1½ in. 1.902 0.103

DN = < 25 mm (1 in.) DN32-40 mm (1¼ - 1½ in.)

Size OD T

Butt-weld ANSI B 36.19M, SCHEDULE 40

15 mm 21.3 2.8 ½ in. 0.839 0.11 20 mm 26.9 2.9 ¾ in 1.06 0.11 25 mm 33.7 3.5 1 in. 1.33 0.14 32 mm 42.4 3.6 1¼ in. 1.67 0.14 40 mm 48.3 3.7 1½ in. 1.9 0.15

AI235186440137en-US1101 | 15

Data sheet | Stainless Steel Valves 15 (½ in.) - 125 ( 5 in.)

Computation and selection

Introduction

In refrigeration plants, regulating valves are primarily used in liquid lines in order to regulate the ﬂow of refrigerant. The valves can, however, also be used as expansion valves. From a calculation point of view the two ﬁelds of application are very diﬀerent.

Normal ﬂow is the term used to describe the general case where the ﬂow through the valve is proportional to the square root of the pressure drop across it and inversely proportional to the density of the refrigerant (Bernouillis equation).

Location of valve in system (marked with grey)

Hot gas by-pass & defrost line

Dry suction line

Wet suction line

REG-SA/SB SS

This relationship between mass ﬂow, pressure drop and density satisﬁes the majority of all valve applications with refrigerants and brines.

Normal ﬂow is characterised by turbulent ﬂow through the valve without any phase change. The following capacity curves are based on the above mentioned assumption.

Application of the regulating valves outside the normal ﬂow area will reduce the capacity of the valve considerably. In such cases it is recommended to use "DIRcalc™" (Danfoss Industrial Refrigeration calculation programme).

Discharge line

Liquid line without phase change Liquid line with or without phase change

Sizing regulating valve for liquid ﬂow

Liquid refrigerants: Use the liquid tables, ﬁg. 6 - 10. For other refrigerants and brines, "Normal ﬂow" (Turbulent ﬂow); see below and use the ﬂow coeﬃcient tables (ﬁg. 1 - 2).

SI-units

Mass ﬂow:

Volume ﬂow:

kv [m3/h] Quantity [m3/h] of water ﬂowing

Imperial units

Mass ﬂow:

Volume ﬂow:

Cv [US gal/min] Quantity [US gal/min] of water through a valve at a pressure loss of 1 bar (according to VDE/VDI Norm

2173).

P1 [psi] Pressure before the valve

P1 [bar] Pressure before the valve

(upstream).

P2 [psi] Pressure after the valve

P2 [bar] Pressure after the valve

(downstream).

∆p [psi] Actual pressure loss across the

∆p [bar] Actual pressure loss across the valve

(P1–P2).

G [kg/h] Mass ﬂow through the valve. [m3/h] Volume ﬂow through the valve.

G [lb/min] Mass ﬂow through the valve.

[US gal/min] Volume ﬂow through the valve.

ρ [lb/ft3] Density of the refrigerant before

ρ [kg/m3] Density of the refrigerant before the

valve.

CA Calculation factor (ﬁg. 5).

ﬂowing through a valve at a pressure loss of 1 psi.

(upstream).

(downstream).

valve (P1–P2).

the valve

AI235186440137en-US1101 | 16

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