Danfoss SVA-S SS, SVA-L SS Data sheet

Data Sheet

Shut-oﬀ valve Type SVA-S SS and SVA-L SS

Designed for highly demanding production environments, where corrosion is a risk

In certain specic 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-o valves, which are designed to meet all industrial refrigeration application requirements.

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

AI234986440234en-000801

Shut-o valve, Type SVA-S SS and SVA-L SS

Features

• Applicable to HCFC, HFC, R717 (Ammonia), R744 (CO2) and all ammable 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 ow 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-o valves can accept ow 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 °C/+50 °C (-76 °F/+122 °F) ◦ DN 80-125: 50 bar (725 psi) at -60 °C/+50 °C (-76 °F/+122 °F) For SVA-S/L SS see the relation between PS and

temperature in the curve on page 2

• Temperature range: -60 °C/+150 °C (-76 °F +302 °F)

• Compact and light valves for easy handling and installation

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

Shut-o valve, Type SVA-S SS and SVA-L SS

Media

Refrigerants

Applicable to HCFC, HFC, R717 (Ammonia), R744 (CO2) and all ammable refrigerants. For further information please contact your local Danfoss Sales Company.

New refrigerants

Danfoss products are continually evaluated for use with new refrigerants depending on market requirements.

When a refrigerant is approved for use by Danfoss, it is added to the relevant portfolio, and the R number of the refrigerant (e.g. R513A) will be added to the technical data of the code number. Therefore, products for specic refrigerants are best checked at store.danfoss.com/en/, or by contacting your local Danfoss representative.

-70

Pressure

-50 -30 -10 10 30 50 70 90 110 130 150

Temperature

-94 -58 -22 14 50 86 122 158 194 230 266 302

˚C

˚F

0

73

145

218

290

363

435

508

580

653

725

798

psi

0

5

10

15

20

25

30

35

40

45

50

55

bar

SVA-S/L SS DN15-DN65

SVA-S SS DN80 - DN125

Description

Values

Temperature Range

-60 °C /+150 °C (-76 °F /+302 °F)

Pressure range

The valves are designed for max. working pressure 52 barg (754 psig)

P

S

5

0

/

7

2

5

p

s

i

g

S

T

O

P

V

A

L

V

E

S

V

A

-

S

D

N

8

0

/

3

@

–

6

0

°

C

\

–

7

6

°

F

–

1

5

0

°

C

\

3

0

2

°

F

Shut-o valve, Type SVA-S SS and SVA-L SS

Product specication

Pressure and temperature data

Figure 1: Pressure and temperature range

Table 1: Pressure and temperature range

Design

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 teon 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 °C/+150 °C (-76 °F/+302 °F). The packing glands are equipped with a scraper ring to prevent penetration of dirt and ice into the packing gland.

Figure 2: Example of Marking Ring

ø

Size

ØDT15

mm

21.3

2.3½in.

0.839

0.09120mm

26.9

2.3

3

⁄4

in

1.059

0.09125mm

33.7

2.61in.

1.327

0.10332mm

42.4

2.6

1

⁄4

in.

1.669

0.10240mm

48.3

2.61½in.

1.902

0.10350mm

60.3

2.92in.

2.37

0.1165mm

76.1

2.92½in.30.1180mm

88.9

3.23in.

3.5

0.13

100

mm

114.3

3.64in.

4.5

0.14

125

mm

139.7

45in.

5.5

0.16

Size

ØDT15

mm

21.3

2.8½in.

0.839

0.1120mm

26.9

2.9

3

⁄4

in

1.06

0.1125mm

33.7

3.51in.

1.33

0.1432mm

42.4

3.6

Shut-o valve, Type SVA-S SS and SVA-L SS

Installation

It is recommended that the valves be installed in the direction of ow 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 guide for SVA-S/L SS.

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.)

Figure 3: DIN

Figure 4: ANSI

Table 2: Butt-weld DIN (EN 10220)

Table 3: Butt-weld ANSI (B 36.19M, SCHEDULE 40)

Size

ØDT1

1

⁄4

in.

1.67

0.1440mm

48.3

3.7

1

⁄2

in.

1.9

0.15

Size

ØDT50

mm

60.3

2.82in.

2.37

0.1165mm733.12½in.

2.87

0.1280mm

88.9

3.13in.

3.5

0.12

100

mm

114.3

3.14in.

4.5

0.12

Danfoss

M148B0038_1

Danfoss

M148B0035_1

No.

Part

MaterialENISO

ASTM

1

Housing

Stainless steel

GX5CrNi19-1

EN10213-4

AISI 304

2

Bonnet, Flange

Stainless steel

X5CrNi18-10

EN10088

AISI 304

3

Bonnet, Insert

Stainless steel

X8CrNiS18-9

DIN 17440

AISI 303

4

Spindle

Stainless steel

X8CrNiS18-9

DIN 17440

Type 17

683/13

AISI 303

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)

Shut-o valve, Type SVA-S SS and SVA-L SS

Table 4: Butt-weld ANSI (B 36.19M, SCHEDULE 10)

Material specication

SVA-S SS 15-40 (½ - 1½ in.)

Figure 5: SVA-S SS 15-40 (½ - 1½ in.)

Table 5: SVA-S SS 15-40 (½ - 1½ in.)