Danfoss REG-SA SS, REG-SB SS Data sheet

Data Sheet

Hand operated regulating valve Type REG-SA SS and REG-SB SS

Assures favorable ow characteristics in harsh operating surroundings

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.

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 specied by the international classication societies and are carefully designed to present favourable ow 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.

AI234986440271en-000601

Hand operated regulating valve, type REG-SA SS and REG-SB SS

Features

• 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 ow 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 (754 psig)

• 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.

Hand operated regulating valve, type REG-SA SS and REG-SB SS

Media

Refrigerants

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

-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

Temperature

Pressure

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

Hand operated regulating valve, type REG-SA SS and REG-SB SS

Product specication

Pressure and temperature range

Figure 1: Pressure and temperature range graph

Design

Housing

Made of stainless steel approved for low temperature operations.

The cone

The valves are available in two dierent versions – REG-SA SS with an A cone and REG-SB 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.

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 °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.

Installation

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

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 REG-SA SS and REG-SB SS.

R

E

G

U

L

A

T

I

N

G

V

A

L

V

E

R

E

G

-

S

A

S

Description

Values

Temperature range

-60 °C - +150 °C (-76 °F -+302°F)

Max working pressure

52 bar (754 psig)

T

ØD

Danfoss

A148B15.10

Size

OD

T

15mm21.3

2.3½in.

0.839

0.09120mm

26.9

2.3¾in.

1.059

0.09125mm

33.7

2.61in.

1.327

0.10332mm

42.4

2.61¼in.

1.669

0.10240mm

48.3

2.61½in.

1.902

0.103

Hand operated regulating valve, type REG-SA SS and REG-SB SS

Figure 2: Example of marking ring, REG-SA SS

Pressure and temperature data

Table 1: Pressure and temperature

Flow coecients

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

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.)

Figure 3: DIN

Table 2: Butt-weld DIN (EN 10220)

T

ØD

Size

OD

T

15mm21.3

2.8½in.

0.839

0.1120mm

26.9

2.9¾in.

1.06

0.1125mm

33.7

3.51in.

1.33

0.1432mm

42.4

3.61¼in.

1.67

0.1440mm

48.3

3.71½in.

1.9

0.15

Hand operated regulating valve, type REG-SA SS and REG-SB SS

Figure 4: ANSI

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

Computation and selection

Introduction

In refrigeration plants, regulating valves are primarily used in liquid lines in order to regulate the ow of refrigerant. The valves can, however, also be used as expansion valves. From a calculation point of view the two elds of application are very dierent.

Normal ow is the term used to describe the general case where the ow 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).

Sizing regulating valve for liquid ow Liquid refrigerants: Use the liquid tables, Figure 12: Flow rate

diagramCalculation factor CA, Figure 12: Flow rate diagramCalculation factor CA, Figure 13: Flow rate diagram. For

other refrigerants and brines, "Normal ow" (Turbulent ow); see below and use the ow coecient tables (Figure 6:

REG-SA SS 15-20 and REG-SB SS 15-20 and Figure 7: REG-SA SS 25-40 and REG-SB SS 25-40).

This relationship between mass ow, pressure drop and density satises the majority of all valve applications with refrigerants and brines.

Normal ow is characterised by turbulent ow 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 ow area will reduce the capacity of the valve considerably. In such cases it is recommended to use "DIRcalc™" (Danfoss Industrial Refrigeration calculation programme).

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

REG-SA/SB SS

Wet suction line

Dry suction line

Hot gas by-pass & defrost line

Discharge line

kv[m

3

/h]

Quantity [m

3

/h] of water owing through a valve at a pressure loss of 1 bar (according to VDE/VDI Norm 2173).

P

1

[bar]

Pressure before the valve (upstream).

P

2

[bar]

Pressure after the valve (downstream).

Δp

[bar]

Actual pressure loss across the valve (P1–P2).

G

[kg/h]

Mass

ow through the valve.

V

[m

3

/h]

Volume ow through the valve.

ρ

[kg/m

3

]

Density of the refrigerant before the valve.

C

A

Calculation factor (See

Figure 10: Calculation factor CA).

C

v

[US gal/min]

Quantity [US gal/min] of water

owing through a valve at a pressure loss of 1 psi.

P

1

[psi]

Pressure before the valve (upstream).

P

2

[psi]

Pressure after the valve (downstream).

Δp

[psi]

Actual pressure loss across the valve (P1–P2).

G

[lb/min]

Mass

ow through the valve.

V

[US gal/min]

Volume

ow through the valve.

ρ

[lb/ft

3

]

Density of the refrigerant before the valve.

C

A

Calculation factor (See

Figure 10: Calculation factor CA).

Hand operated regulating valve, type REG-SA SS and REG-SB SS

Figure 5: Location of valve in system (marked with grey)

SI-units

Mass ow:

kv=

G

ρ × 1000 × Δp

Volume ow:

∨

=

k

v

1000 × Δp

ρ

Imperial units

Mass ow:

0.95 × G

Cv=

ρ × Δp

Volume ow:

0.127 × ∨

=

C

v

Δp

ρ

= G×CA[m3/h]

[m3/h]

 = 31.6 × G × CA[USgal/ min . ]

[USgal/ min . ]

B

A

0

0% 25% 50% 75% 10 0%

Turn of spindle

Opening

Kv(Cv)

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

1 2 3 4 5 6 7 8 9

(5.80)

(5.22)

(4.64)

(4.06)

(3.48)

(2.90)

(2.32)

(1.74)

(1.16)

(0.58)

Flow coefficient

B

A

0% 2 5% 50% 75% 100%

Turn of spindle

Opening

Kv(Cv)

Flow coefficient

0

2

4

6

8

10

12

14

16

18

20

0 1 2 3 4 5 6 7 8 9 10 11 12

(23.20)

(20.88)

(18.56)

(16.24)

(13.92)

(11.60)

(9.28)

(6.96)

(4.64)

(2.32)

Hand operated regulating valve, type REG-SA SS and REG-SB SS

Figure 6: REG-SA SS 15-20 and REG-SB SS 15-20

Figure 7: REG-SA SS 25-40 and REG-SB SS 25-40

Liquid R 717, density: 670 kg/m3 [42 lb/ft3]

0

1

2

3

4

5

6

7

8

9

0%

25%

50%

75%

100%

Turn of spindle

A

B

Turn of spindle

Opening

kg/h

(lb/min)

8000 (294)

4000 (147)

R717

∆P = 0.5 bar (7 psi)

∆P = 1 bar (14 psi)

∆P = 1.5 bar (22 psi)

∆P = 2 bar (29 psi)

kg/h

(lb/min)

30000

(1103)

20000

(735)

B

A

10000

(368)

∆P = 0.5 bar (7 psi)

∆P = 1 bar (14 psi)

∆P = 1.5 bar (22 psi)

∆P = 2 bar (29 psi)

0

1

2

3

4

5

6

7

8

9

10

11

12

Turn of spindle

R717

Opening

0%

25%

50%

75%

100%

Hand operated regulating valve, type REG-SA SS and REG-SB SS

Figure 8: REG-SA SS 15-20 and REG-SB SS 15-20

Figure 9: REG-SA SS 25-40 and REG-SB SS 25-40

Hand operated regulating valve, type REG-SA SS and REG-SB SS

Figure 10: Calculation factor C



NOTE:

A

For choice of valve size and connection see "Connections".

Computation and selection Example 1.

Refrigerant: R 717 Refrigerant ow: 2200 kg/h Pressure drop: Δp = 0.5 bar The above mentioned example is illustrated on the following ow rate diagram and shows that REG-SB SS 15 and 20 with cone B can be used. The main rule is that nominal regulation range should be below 85% opening degree. If the arrowline is crossing 2 cone curves, the smaller cone should be selected if opening degree < 85%.

The example is only correct if the density of the refrigerant is approx. 670 (kg/m3), and there must be no build-up of ash gas in the valve.

2200

(81)

0

1

2

3

4

5

6

7

8

9

0%

25%

50%

75%

100%

Turn of spindle

A

B

Turn of spindle

Opening

kg/h

(lb/min)

8000

(294)

4000

(147)

R717

∆P = 0.5 bar (7 psi)

∆P = 1 bar (14 psi)

∆P = 1.5 bar (22 psi)

∆P = 2 bar (29 psi)

REG-SA SS 15-20 and REG-SB SS 15-20

Hand operated regulating valve, type REG-SA SS and REG-SB SS

Figure 11: Flow rate diagram

Computation and selection Example 2.

Brine, density ρ: 1150 [kg/m3] Brine ow G: 2,700 [kg/h] Pressure drop Δp: 0.5 [bar] In this example it is not possible to use the selection diagrams (Figure 8: REG-SA SS 15-20 and REG-SB SS 15-20 and

Figure 9: REG-SA SS 25-40 and REG-SB SS 25-40) as the refrigerant in question is not included.

Use the curves of the kv-values instead (Figure 6: REG-SA SS 15-20 and REG-SB SS 15-20 and Figure 7: REG-SA SS

25-40 and REG-SB SS 25-40) and calculate the required kv by means of the formulas in the "Introduction" passage at

the beginning of this chapter. Alternatively calculate the kv-values by means of the calculation factor CA (Figure 12:

Flow rate diagramCalculation factor CA) and the ow rate diagram (in this example: Figure 13: Flow rate diagram) as

per the following calculation example.

Calculation example:

Required kv-value CA = 0.00132 (from Figure 13: Flow rate diagram) kv = CA × G kv = 0.00132 × 2,700 [kg/h] = 3.56 [m3/h]

Density kg/m3 [lb/ft]

B

A

0

0% 25% 50% 75% 100%

Turn of spindle

Opening

Kv(Cv)

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

1 2 3 4 5 6 7 8 9

(5.80)

(5.22)

(4.64)

(4.06)

(3.48)

(2.90)

(2.32)

(1.74)

(1.16)

(0.58)

3.56 m3/h (from calculation above)

Hand operated regulating valve, type REG-SA SS and REG-SB SS

Figure 12: Calculation factor C

Figure 13: Flow rate diagram

A

REG-SB SS 15 and REG-SB SS 20 with cone B can be used.

Danfoss

M148B0010_1

17

11

18

8

10

9

7

12

2

13

3A

4

1

21

5

No.

Part

Material

EN

ISO

ASTM

1

Housing

Stainless steel

GX5CrNi19-10 EN10213-4

AISI 304

2

Bonnet, Flange

Stainless steel

X5CrNi18-10 EN10088

AISI 304

3A

Bonnet, Insert

Stainless steel

X8CrNiS18-9 DIN 17440

AISI 303

4

Spindle

Stainless steel

X8CrNiS 18-9 DIN 17440

Type 17, 683/13

AISI 303

5

Cone

Steel7Packing washer

Aluminium

8

Packing gland

Stainless Steel

X8CrNiS 18-9, 10088

Type 17, 683/13

AISI 303

9

O-ring

Chloroprene (Neoprene)

10

Spring loaded Teon ring

PTFE11O-ring

Chloroprene (Neoprene)

12

Bolts

Stainless steel

A2-70

Type 308

13

Gasket

Fiber, non asbestos

14

Bottom insert

Steel17Seal cap

Aluminium

18

Gasket f. seal cap

Nylon19Locking nut

Steel20Screw

Steel21Disk spring

Steel

Hand operated regulating valve, type REG-SA SS and REG-SB SS

Material specication

Figure 14: REG-SA SS and REG-SB SS 15 - 40

Table 4: Material and parts

ØD

G

C

H

Valve sizeCG∅DH

Weight

REG-SA SS/SB SS 15-20 REG-SA SS/SB SS (½-3/4)

mm

in.

182

7.17451.77381.50602.36

1.4 kg

3.1 lb

REG-SA SS/SB SS 25-40 REG-SA SS/SB SS (1-1½)

mm

in.

237

9.33552.17501.97702.76

2.4 kg

5.3 lb

G

B

H

E

C

D

Hand operated regulating valve, type REG-SA SS and REG-SB SS

Dimensions and weights

REG-SA SS and REG-SB SS 15 - 40 in angleway version

Figure 15: REG-SA SS and REG-SB SS 15 - 40

Table 5: Valve size and weight

 NOTE:

Specied weights are approximate values only.

REG-SA SS and REG-SB SS 10 - 65 in straightway version

Figure 16: REG-SA SS and REG-SB SS 15 - 40

Valve sizeCBEG∅DH

Weight

REG-SA SS/SB SS 15-20 REG-SA SS/SB SS (½-3/4)

mm

in.

145

5.71

155

6.10200.79

120

4.72381.50602.36

2.0 kg

4.4 lb

REG-SA SS/SB SS 25-40 REG-SA SS/SB SS (1-1½)

mm

in.

200

7.87

215

8.46261.02

155

6.10501.97702.76

3.0 kg

6.6 lb

Hand operated regulating valve, type REG-SA SS and REG-SB SS

Table 6: Valve size and weight

 NOTE:

Specied weights are approximate values only.

Valve type

REG SA SS REG-SB SS

Regulating Valves

Nominal size in mm (Valve size measured on the connection diameter)

15 20 25 32 40

DN 15 DN 20 DN 25 DN 32 DN 40

Available connection types

D x x x x x

A x x x x x

Connections

D A

Butt-weld connection: DIN EN 10220 Butt-weld connection: ANSI B 36.19M

Valve housing

ANG

Angle ow

STR

Straight ow

Cone A

Size: DN 15 DN 20 DN 25 DN 32 DN 40

Flow area [mm2]

36.5

36.5 178 178 178

Cone B

Size: DN 15 DN 20 DN 25 DN 32 DN 40

Flow area [mm2] 115 115 531 531 531

Size

Type

Code no.

mm

in.

Angleway

- REG-SA SS with cone type A

15

½

REG-SA SS 15 D ANG

148B529720¾

REG-SA SS 20 D ANG

148B5385251

REG-SA SS 25 D ANG

148B5494

32

1 ¼

REG-SA SS 32 D ANG

148B5589

40

1 ½

REG-SA SS 40 D ANG

148B5674

Size

Type

Code no.

mm

in.

Straightway

- REG-SA SS with cone type A

15

½

REG-SA SS 15 D STR

148B529820¾

REG-SA SS 20 D STR

148B5386251

REG-SA SS 25 D STR

148B5495

32

1 ¼

REG-SA SS 32 D STR

148B5590

40

1 ½

REG-SA SS 40 D STR

148B5675

Hand operated regulating valve, type REG-SA SS and REG-SB SS

Ordering

How to order

The table below is used to indentify the valve required.

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.

Table 7: Type codes

Complete REG-SA SS (Cone type A)

Example: REG-SA SS (Cone B) 15 DIN angleway = 148B5387

Table 8: Butt-weld DIN (EN 10220)

Table 9: Butt-weld DIN (EN 10220)

Size

Type

Code no.

mm

in.

Angleway - REG-SA SS with cone type A

15

½

REG-SA SS 15 A40 ANG

148B6482251

REG-SA SS 25 A40 ANG

148B6483

32

1 ¼

REG-SA SS 32 A40 ANG

148B6484

Size

Type

Code no.

mm

in.

Straightway - REG-SA SS with cone type A

15

½

REG-SA SS 15 A40 STR

148B5299251

REG-SA SS 25 A40 STR

148B6485

32

1 ¼

REG-SA SS 32 A40 STR

148B6486

Size

Type

Code no.

mm

in.

Angleway - REG-SB SS with cone type B

15

½

REG-SB SS 15 D ANG

148B538720¾

REG-SB SS 20 D ANG

148B5389251

REG-SB SS 25 D ANG

148B5496

32

1 ¼

REG-SB SS 32 D ANG

148B5591

40

1 ½

REG-SB SS 40 D ANG

148B5676

Size

Type

Code no.

mm

in.

Straightway - REG-SB SS with cone type B

15

½

REG-SB SS 15 D STR

148B538820¾

REG-SB SS 20 D STR

148B5390251

REG-SB SS 25 D STR

148B5497

32

1 ¼

REG-SB SS 32 D STR

148B5592

40

1 ½

REG-SB SS 40 D STR

148B5677

Size

Type

Code no.

mm

in.

Angleway - REG-SB SS with cone type B

20

¾

REG-SB SS 20 A40 ANG

148B6487

40

1 ½

REG-SB SS 40 A40 ANG

148B5686

Size

Type

Code no.

mm

in.

Straightway - REG-SA SS with cone type A

20

¾

REG-SB SS 20 A40 STR

148B6488251

REG-SB SS 25 A40 STR

148B6479

40

1 ½

REG-SB SS 40 A40 STR

148B5685

Hand operated regulating valve, type REG-SA SS and REG-SB SS

Table 10: Butt-weld ANSI (B 36.19M SCHEDULE 40)

Table 11: Butt-weld ANSI (B 36.19M SCHEDULE 40)

D = Butt-weld DIN A = Butt-weld ANSI ANG = Angleway STR = Straightway

Complete REG-SB SS (Cone type B)

Table 12: Butt-weld DIN (EN 10220)

Table 13: Butt-weld DIN (EN 10220)

Table 14: Butt-weld ANSI (B 36.19M SCHEDULE 40)

Table 15: Butt-weld ANSI (B 36.19M SCHEDULE 40)

Size

O-ring kit for

mm

in.

R717

Heat pump

R1270

Propylene

10⅜148B6084

148B608515½

148B6070

148B6077

20¾25

1

148B6071

148B6078

321¼40

1½

Hand operated regulating valve, type REG-SA SS and REG-SB SS

D = Butt-weld DIN A = Butt-weld ANSI ANG = Angleway STR = Straightway

Replacement kit

Replacement kit (O-ring replacement) for R717 Ammonia Heat Pump

Table 16: O-ring kit

(1)

and Propylene applications (including ID tag)

1

Replacement kits for R717 Ammonia Heat Pump is applicable for continuous operating temperature between +100 °C - 150 °C (212 °F - 302 °F)

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

REG-SA SS and REG-SB SS valves

Nominal bore

DN = < 25 mm (1 in.)

DN32-40 mm (1¼ - 1½ in.)

Classied for

Fluid group I

Catagory

Article 3, paragraph 3

II

File name

Document type

Document topic

Approval authority

03709-F0 BV

Marine - Safety Certicate

-BV033F0685.AK

EU Declaration

EMCD/PED

Danfoss

033F0691.AE

Manufacturers Declaration

RoHS

Danfoss

Hand operated regulating valve, type REG-SA SS and REG-SB SS

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 17: Pressure Equipment Directive (PED)

Table 18: Valves specications

Table 19: Certicates and declarations

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 REG-SA SS, REG-SB SS Data sheet

Specifications and Main Features

Frequently Asked Questions

User Manual