Danfoss DSV 10, DSV 1, DSV 2 Data sheet

Data Sheet

Change-over valve
Type DSV 10, DSV 1 and DSV 2

Highly reliable safety valves provides
lower capacity and more exibility

DSV 10, DSV 1 and DSV 2 are change-over
valves, which are designed to meet all
industrial refrigeration application
requirements.

DSV valves are designed specically for use
with double safety valve systems.

The valves are designed to give favourable ow
characteristics and are easy to dismantle for
servicing. The valve cone is designed to ensure
perfect closing, even with minimum torque the
valve will close eectively. All valves are
equipped with vented cap and nipple/ange
connections, which permit easy inspection or
replacement of safety valves.

AI183186425447en-001001

Change-over valve, Type DSV 10, DSV 1 and DSV 2

Features

• Applicable to HCFC, non ammable HFC, R717 (Ammonia) and R744 (CO2)

• Each valve type is clearly marked with type, size and performance range

• The valves and caps are prepared for sealing, to prevent operation by unauthorised persons, using a seal wire

• Can accept ow in both directions

• Housing and bonnet are made from low temperature steel according to requirements of the Pressure Equipment
Directive and other international classication authorities

• Max. operating pressure:

◦ DSV 10: 65 bar (943 psig)
◦ DSV 1 and DSV 2: 40 bar (580 psig)

• Temperature range:

◦ Temperature range: DSV 10, DSV 1 and DSV 2: -50 °C to 100 °C (-58 °F to 212 °F)

• DSV 10 when tted with 2 x SFA 10/SFA 10H or DSV 1 when tted with 2 x SFA 15/BSV 8 or DSV 2 when tted with
a combination of either 2 x SFA 15, or 2 x SFV 20, or 2 x SFV 25, meet the requirements according to EN13136
"Safety Valves Calculations" regarding max. 3% pressure drop in upstream line

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

© Danfoss | Climate Solutions | 2021.02 AI183186425447en-001001 | 2

Change-over valve, Type DSV 10, DSV 1 and DSV 2

Media

Refrigerants

Applicable to HCFC, non ammable HFC, R717 (Ammonia) and R744 (CO2). Flammable hydrocarbons are not
recommended. The valve is only recommended for use in closed circuits.

For further information please contact Danfoss.

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.

© Danfoss | Climate Solutions | 2021.02 AI183186425447en-001001 | 3

Description

Values

Temperature range

-50 °C to 100 °C (-58 °F to 212 °F)

Max. operating pressure

DSV 10: 65 bar (942 psig)

DSV 1 and 2: 40 bar (580 psig)

Change-over valve, Type DSV 10, DSV 1 and DSV 2

Product specication

Pressure and temperature

Table 1: Pressure and temperature

Design

Housing and bonnet

Made from special, cold resistant steel approved for low temperature operation.

Valve cone

A Teon tightening ring provides perfect sealing with a minimum closing torque.

Spindle

Made of polished stainless steel, which is ideal for O-ring sealing.

Packing gland

The "full temperature range" packing gland ensures perfect tightness in the whole temperature range: -50 °C to 100
°C (-58 °F to 212 °F). The packing gland is equipped with a scraper ring to prevent penetration of dirt and other
foreign bodies.

Installation

DSV are used as changeover valves between two SFA/BSV/SFV safety valves. When the spindle is turned clockwise
the inlet port C is connected to B. When the spindle is turned anticlockwise the inlet port C is connected to A. For
further information refer to installation guide for DSV.

Figure 1: Flow sketch

© Danfoss | Climate Solutions | 2021.02 AI183186425447en-001001 | 4

Danfoss

11L90056

No.

Part

Material

DIN/EN

ISO

ASTM

1

Cap

Aluminum

2

Cap gasket

Nylon

3

Gasket for packing gland

Aluminum

4

Bonnet insert

Steel

P285QH, EN10222-4

LF2A350

5

Gasket for bonnet

Aluminum

6

Housing

Steel

G20Mn5QT, EN10231

7

Spindle

Stainless steel

X10CrNiS18-9, EN17440

Type 2, R683/13

AISI 303

8

Cone, Middle

Steel

11SMn30, EN10087

9

Cone, Front

Steel

9 SMn28

Type 2, R683/9

1213, SEAJ 403

10

Slotted nut

Steel

11

Slotted pin

Steel

12,13

Cone seal

Teon (PTFE)

14,15,19

O ring

Chloroprene (Neoprene)

16

Screw

Steel17Flexiseal

Teon+stainless steel

18

Packing gland body

Stainless steel

X8CrNiS18-9, EN10088-3

AISI 303

20

Scraper ring

Nylon

Change-over valve, Type DSV 10, DSV 1 and DSV 2

Material specication

DSV 10

Figure 2: DSV 10

Table 2: DSV 10

DSV 1

Figure 3: DSV 1

© Danfoss | Climate Solutions | 2021.02 AI183186425447en-001001 | 5

No.

Part

Material

DIN/EN

ISO

ASTM

1

Housing

Steel

P285QH, EN10222-4

LF2A350

2

Bonnet

Steel

P285QH, EN10222-4

LF2A350

3

Spindle

Stainless steel

X10CrNiS 18 9 17440

Type 17, 683/13

AISI 3034Seat

Steel

9 SMn28, 1651

Type 2, R683/9

1213, SAEJ 403

5

Cone, Middle

Steel

9 SMn28, 1651

Type 2, R683/9

1213, SAEJ 403

6

Cone, Back

Steel

9 SMn28, 1651

Type 2, R683/9

1213, SAEJ 403

7

Cone, Front

Steel

9 SMn28, 1651

Type 2, R683/9

1213, SAEJ 403

8

Cone seal

Teon (PTFE)

9

Packing gland

Steel

9 SMn28, 1651

Type 2, R683/9

1213,SAEJ 403

13-17

O-ring

Chloroprene (Neoprene)

20

Slotted nut

Steel21Screw

Steel

A2-70

A2-70

Type 308

22

Seal cap

Aluminium

23

Gasket for seal cap

Nylon

24

Idencation ring

Stainless steel

No.

Part

Material

DIN/EN

ISO

ASTM

1

Housing

Steel

P285QH, EN10222-4

LF2A350

2

Bonnet

Steel

P285QH, EN10222-4

LF2A350

3

Spindle

Stainless steel

X10CrNiS 18 9 17440

Type 17, 683/13

AISI 3034Seat

Steel

9 SMn28, 1651

Type 2, R683/9

1213, SAEJ 403

5

Cone, Middle

Steel

9 SMn28, 1651

Type 2, R683/9

1213, SAEJ 403

6

Cone, Back

Steel

9 SMn28, 1651

Type 2, R683/9

1213, SAEJ 403

7

Cone, Front

Steel

9 SMn28, 1651

Type 2, R683/9

1213, SAEJ 403

8

Cone seal

Teon (PTFE)

9

Packing gland

Steel

9SMn28, 1651

Type 2, R683/9

1213,SAEJ 403

13-17

O-ring

Chloroprene (Neoprene)

20

Slotted nut

Steel21Screw

Steel

A2-70

A2-70

Type 308

22

Seal cap

Aluminium

23

Gasket for seal cap

Nylon

24

Idencation ring

Stainless steel

Change-over valve, Type DSV 10, DSV 1 and DSV 2

Table 3: DSV 1

DSV 2

Figure 4: DSV 2

Table 4: DSV 2

Connections

Available with the following connections:

Pipe thread (ISO 228/1)
DSV 10 only: NPT (ANSI/ASME B1.20.1)
Weld branch/nipples/anges - DIN 2448

© Danfoss | Climate Solutions | 2021.02 AI183186425447en-001001 | 6

Danfoss

11L90057

L

J

G

H

I

K

11L90058

Danfoss

Type

Kv-value

Cv-value

m3/h

Us

gal/min

DSV 10

5.5

6.4

DSV 1

17.5

20.3

DSV 2

30

34.8

Valve size

ThreadDNØODTGHIJKLWeight

DSV 10 G + SFA 10 T

mm

-1521.3

2.65

331.5

210.5

82.54075.5803.2 kg

in.

3

⁄4”1⁄2

0.84

0.1

13.05

8.29

3.25

1.57

2.97

3.15

7.1 lb

DSV 10 G + SFA 10H T

mm

-1521.3

2.65

347.3

210.5

82.54075.5803.35 kg

in.

3

⁄4”1⁄2

0.84

0.1

13.67

8.29

3.25

1.57

2.97

3.15

7.4 lb

DSV 10 NPT + SFA 10 NPT

mm

-

266

145.5

45.34044.2802.5 kg

in.

3

⁄4”

10.47

5.73

1.78

1.57

1.74

3.15

5.5 lb

DSV 10 NPT + SFA 10H NPT

mm

-

282

145.5

45.34044.2802.5 kg

in.

3

⁄4”

11.1

5.73

1.78

1.57

1.74

3.15

5.5 lb

Change-over valve, Type DSV 10, DSV 1 and DSV 2

 NOTE:

DSV valves are supplied c/w DSV inlet connection ttings, DSV outlet connection ttings, and SFA/BSV/SFV outlet
connection ttings. Please refer to ordering section.

Capacity

Table 5: Capacity

Dimensions and weights for double safety valve systems

Figure 5: DSV 10 G + SFA 10(H) T

Figure 6: DSV 10 NPT + SFA 10(H) NPT

Table 6: DSV 10 G + SFA 10(H) T and DSV 10 NPT + SFA 10(H) NPT

 NOTE:

Specied weights (incl. all ttings and excl. SFA / SFV) are approximate values only.

© Danfoss | Climate Solutions | 2021.02 AI183186425447en-001001 | 7

Valve size

DN

ØOD

ØOD1T

T1GHIJKLWeight

DSV 1(D25) + SFA 15

mm

25

33.7

26.9

2.6

2.3

339

1745040

82.5804.55 kg

in.

1

1.33

1.06

0.1

0.09

13.35

6.85

1.97

1.58

3.25

3.15

10.03 lb

Valve size

DN

ØOD

ØOD

1

T

T

1

ØDGHIJKL

Weight

DSV 2 (FD20) + SFA 15

mm

20

26.9

26.9

2.3

2.3

82.5

351

186

73.51082.5809.3 kg

in.

¾

1.06

1.06

0.09

0.09

3.25

13.82

7.32

2.89

0.39

3.25

3.15

20.5 lb

DSV 2 (FD25) + SFA 15

mm

25

33.7

26.9

2.6

2.3

82.5

351

186

73.51082.5809.3 kg

in.

1

1.33

1.06

0.1

0.09

3.25

13.82

7.32

2.89

0.39

3.25

3.15

20.5 lb

DSV 2 (FD32) + SFA 15

mm

32

42.4

26.9

2.6

2.3

82.5

351

186

73.51082.5809.3 kg

in.

1¼

1.67

1.06

0.1

0.09

3.25

13.82

7.32

2.89

0.39

3.25

3.15

20.5 lb

Change-over valve, Type DSV 10, DSV 1 and DSV 2

Figure 7: DSV 1 + SFA 15 Figure 8: DSV 2 + SFA 15

Table 7: DSV 1 + SFA 15

Table 8: DSV 2 + SFA 15

 NOTE:

Specied weights (incl. all ttings and excl. SFA / SFV) are approximate values only.

Figure 9: DSV 2 + SFV 20 / SFV 25

© Danfoss | Climate Solutions | 2021.02 AI183186425447en-001001 | 8

Valve size

DN

ØOD

ØOD

1

T

T

1

ØD

ØD

1

GHIJKLWeight

DSV 2 (FD25)

mm

25

33.7

33.7

2.6

2.6

82.5

82.5

412

197

73.510858011.9 kg

in.

1

1.33

1.33

0.1

0.1

3.25

3.25

16.22

7.76

2.89

0.39

3.35

3.15

26.23 lb

DSV 2 (FD32)

mm

32

42.4

33.7

2.6

2.6

82.5

82.5

412

197

73.510858011.9 kg

in.

1¼

1.67

1.33

0.1

0.1

3.25

3.25

16.22

7.76

2.89

0.39

3.35

3.15

26.23 lb

DSV 2 (FD32)

mm

32

42.4

42.4

2.6

2.6

82.5

82.5

412

197

73.510858011.9 kg

in.

1¼

1.67

1.67

0.1

0.1

3.25

3.25

16.22

7.76

2.89

0.39

3.35

3.15

26.23 lb

Danfoss

148F3054

Valve sizeABCEØFWeight

DSV 10 G

mm

453348

178492.3 kg

in.

1.77

1.3

1.8971.93

5.1 lb

DSV 10 NPT

mm

453348

178491.5 kg

in.

1.77

1.3

1.8971.93

3.3 lb

Valve sizeAB

B

1

C

ØODEØF

Weight

DSV 1

mm

5035455633.7

255773.6 kg

in.

2

1.38

1.77

2.2

1.33

10.04

3.03

7.94 lb

Change-over valve, Type DSV 10, DSV 1 and DSV 2

Table 9: DSV 2 + SFV 20 / SFV 25

 NOTE:

Specied weights (incl. all ttings and excl. SFA / SFV) are approximate values only.

Dimensions and weights

Figure 10: DSV 10 - G / NPT

Table 10: DSV 10 - G / NPT



NOTE:

Specied weights are approximate values only.

Figure 11: DSV 1

Table 11: DSV 1



NOTE:

Specied weights are approximate values only.

© Danfoss | Climate Solutions | 2021.02 AI183186425447en-001001 | 9

ØD

ØF

Valve sizeAB

B

1

CØDEØFWeight

DSV 2

mm

5045557082,5

281776.1 kg

in.

2

1.77

2.17

2.76

3.25

11.06

3.03

13.45 lb

Change-over valve, Type DSV 10, DSV 1 and DSV 2

Figure 12: DSV 2

Table 12: DSV 2

NOTE:



Specied weights are approximate values only.

© Danfoss | Climate Solutions | 2021.02 AI183186425447en-001001 | 10

Valve type

DSV inlet connection

DSV outlet connection

SFA/SFV outlet connection

Safety valve combination

Code No.

DSV 10 G

ND15 (

1

⁄2 in.) RH

G ½ in. Union

ND15 (

1

⁄2 in.)

SFA 10(H) T

148F3054

DSV 10 NPT

NPT (¾ in.) Male

NPT (

1

⁄2 in.) Female

NPT (¾ in.) Male

SFA 10(H) NPT

148F3055

DSV 1

D25 (1 in.)

G ¾ in. Union

ND20 (¾ in.)

SFA 15/BSV 8

148F3005

DSV 2

FD20 (¾ in.)

G ¾ in. thread ange

ND20 (¾ in.)

SFA 15/BSV 8

148F3006

DSV 2

FD25 (1 in.)

G ¾ in. thread ange

ND20 (¾ in.)

SFA 15/BSV 8

148F3007

DSV 2

2 FD32 (1¼ in.)

G ¾ in. thread ange

ND20 (¾ in.)

SFA 15/BSV 8

148F3008

DSV 2

FD25 (1 in.)

G 1¼ in. thread ange

FD25 (1 in.)

SFV 20

148F3009

DSV 2

2 FD32 (1¼ in.)

G 1¼ in. thread ange

FD25 (1 in.)

SFV 20

148F3010

DSV 2

2 FD32 (1¼ in.)

G 1¼ in. thread ange

FD32 (1¼ in.)

SFV 25

148F3011

Connection

ttings:

T

Thread branch ISO 228 male

NPT

Thread branch ANSI/ASME B1.20.1

D

Weld branches DIN 2448

ND

Weld nipples DIN 2448

FD

Weld anges DIN 2448

Type

Code No.

Nipples + Gaskets set for ND15/ND15 DSV 10 G/SFA 10(H) T

148F3067

Nipples + gaskets set for 25D/ND20 DSV 1/SFA 15/BSV 8

148F3037

Flanges + gaskets set for FD20/ND20 DSV 2/SFA 15/BSV 8

148F3038

Flanges + gaskets set for FD25/ND20 DSV 2/SFA 15/BSV 8

148F3039

Flanges + gaskets set for FD32/ND20 DSV 2/SFA 15/BSV 8

148F3040

Flanges + gaskets set for FD25/FD25 DSV 2/SFV 20

148F3041

Flanges + gaskets set for FD32/FD25 DSV 2/SFV 20

148F3042

Flanges + gaskets set for FD32/FD32 DSV 2/SFV 25

148F3043

Type

Code. No

DSV 10 G Cap and alu gasket for testing (1 set)

148F3063

DSV 10 T Plug

1

⁄2” NPT for testing (1 set)

148F3072

Change-over valve, Type DSV 10, DSV 1 and DSV 2

Ordering

How to order

The table below is used to identify the valve required.

 NOTE:

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.

Example

DSV 2 FD20 SFA 15 = 148F3006
DSV 2 = Valve type
FD20 = DSV inlet connection
SFA 15 = Safety valve combination

Table 13: Type codes

Above code numbers include:

DSV valve, DSV inlet connection tting, DSV outlet connection tting, SFA/BSV/SFV outlet connection ttings and
necessary seals.

Safety valves SFA/BSV/SFV must be ordered separately (see SFA/BSV/SFV technical documentation).

Fittings and gaskets

Table 14: Fittings and gaskets

Accessories

Table 15: Accessories

© Danfoss | Climate Solutions | 2021.02 AI183186425447en-001001 | 11

File name

Document type

Document topic

Document topic

RU Д-DK.БЛ08.B.03634

EAC Declaration

Machinery & Equipment

EAC

RU Д-DK.РА01.B.72064_20

EAC Declaration

PED

EAC

033F0685.AK

EU Declaration

EMCD/PED

Danfoss

TS271067J-2023

Manufacturing Permission

TSG

AQSIQ

033F0691.AE

Manufacturers Declaration

RoHS

Danfoss

033F0686.AH

Manufacturers Declaration

PED

Danfoss

033F0473.AD

Manufacturers Declaration

ATEX

Danfoss

19.10327.266

Marine - Safety Certicate

RMRS

0045 202 1204 Z 00354 19 D 001(00)

Pressure - Safety Certicate

TÜV

19.10327.266

Marine - Safety Certicate

RMRS

DSV 10 valves

DSV 1 valves

DSV 2 valves

Nominal bore

DN 15 mm (

1

⁄2 in.)

DN ≤ 25 mm (1 in.)

DN 32 mm (1¼ in.)

Classied for

Fluid group I

Category

A4/P3

II

DSV valves are approved and CE-marked in accordance with Pressure Equipment Directive - 97/23/EC.
For further details / restrictions - see Installation guide.

Change-over valve, Type DSV 10, DSV 1 and DSV 2

Certicates, declarations and approvals

The list contains all certicates, declarations, and approvals for this product type. Individual code number may have
some or all of these approvals, and certain local approvals may not appear on the list.

Some approvals may change over time. You can check the most current status at danfoss.com or contact your local
Danfoss representative if you have any questions.

Table 16: Valid Approvals

Table 17: Compliance

Table 18: Pressure Equipment Directive (PED)

© Danfoss | Climate Solutions | 2021.02 AI183186425447en-001001 | 12

Online support

Danfoss oers a wide range of support along with our products, including digital product information, software,
mobile apps, and expert guidance. See the possibilities below.

The Danfoss Product Store

The Danfoss Product Store is your one-stop shop for everything product related—no matter where
you are in the world or what area of the cooling industry you work in. Get quick access to essential
information like product specs, code numbers, technical documentation, certications, accessories,
and more.
Start browsing at store.danfoss.com.

Find technical documentation

Find the technical documentation you need to get your project up and running. Get direct access to
our ocial collection of data sheets, certicates and declarations, manuals and guides, 3D models
and drawings, case stories, brochures, and much more.

Start searching now at www.danfoss.com/en/service-and-support/documentation.

Danfoss Learning

Danfoss Learning is a free online learning platform. It features courses and materials specically
designed to help engineers, installers, service technicians, and wholesalers better understand the
products, applications, industry topics, and trends that will help you do your job better.

Create your Danfoss Learning account for free at www.danfoss.com/en/service-and-support/learning.

Get local information and support

Local Danfoss websites are the main sources for help and information about our company and
products. Find product availability, get the latest regional news, or connect with a nearby expert—all
in your own language.

Find your local Danfoss website here: www.danfoss.com/en/choose-region.

Spare Parts

Get access to the Danfoss spare parts and service kit catalog right from your smartphone. The app
contains a wide range of components for air conditioning and refrigeration applications, such as
valves, strainers, pressure switches, and sensors.

Download the Spare Parts app for free at www.danfoss.com/en/service-and-support/downloads.

Coolselector®2 - nd the best components for you HVAC/R system

Coolselector®2 makes it easy for engineers, consultants, and designers to nd and order the best
components for refrigeration and air conditioning systems. Run calculations based on your operating
conditions and then choose the best setup for your system design.

Download Coolselector®2 for free at coolselector.danfoss.com.

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 specications 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 | Climate Solutions | 2021.02 AI183186425447en-001001 | 13