Danfoss Electronics SGP X, SGP I, SGP N, SGP RX, SGP RI Data Sheet

Data sheet

Sight glass (High pressure)
Type SGP X, SGP I, SGP N, SGP RX, SGP RI and SGP RN

SGP are sight glasses for high pressure
applications (Max. Working Pressure
52 bar / 754 psig).

SGP is available with flare, solder and socket
connections, and with and without moisture
indicators.

SGP I / SGP N and SGP RI / SGP RN are equipped
with sensitive indicators that reflects a color,
which depends on the moisture content in the
refrigerant.

SGP X and SGP RX, without moisture indicator,
are mainly used to indicate the condition of the
refrigerant in the liquid line or the flow in the oil
return line from the oil separator.

Features

Type SGP X / SGP RX (without indicator)

y Indicates lack of subcooling
y Indicates refrigerant deficiency
y Indicates liquid level in receiver
y Indicates oil level in compressor
y Flare/flare, solder/solder connection or

socket type

Type SGP I / SGP RI (with I type indicator)
Type SGP N / SGP RN (with N type indicator)

-Indicates too high moisture content in the
refrigeration system by colors

-Indicates lack of subcooling

-Indicates refrigerant deficiency

-Flare/flare, solder/solder connection or socket
type

y UL approval, conforms to Pressure Equipment

Directive 2014/68/EU
y Large viewing window for better visibility
y Provides accurate identification of system

conditions
y Easy to indicate liquid and oil level by float ball

of socket type
y Good corrosion resistance by 2000 hours salt

spray for brass material according to ASTM

B117 requirement

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Data sheet High pressure sight glass, SGP X, SGP I, SGP N, SGP RX, SGP RI and SGP RN

Technical data

Approvals

Available types

Media temperature: -50 – 80 °C / -58 – 175 °F
Max. working pressure (PS / MWP): 52 bar / 754 psig
Refrigerant oil: All mineral oils and ester oils

Solder version ODF x ODF Flare External x External Flare Internal x External

SGP X

without indicator

Solder version ODF x ODM Solder version ODF x ODF Flare External x External

SGP I and SGP N

with indicator

SGP X

without indicator

SGP I and SGP N

with indicator

SGP I and SGP N

with indicator

SGP I and SGP N

with indicator

Choice of sight glass
moisture indication

REACH requirements

Socket Socket Saddle

SGP RX

without indicator

Before choosing a sight glass with moisture
indicator, the following should be considered:

y type of refrigerant
y water solubility of refrigerant
y the level on which a danger signal is required

SGP RI and SGP RN

with indicator

The colour on the sight glass indicator depends
on the moisture content of the refrigerant.

The values under “green / dry” are to be
considered as perfect condition meaning full
protection against harmful effects from moisture.

SGS

In other words, the filter drier is working

Be aware that polyester oil for refrigerants like,

perfectly.

e.g. R134a, R404A, R407C react with water in a
hydrolysis generating acid and alcohol.

If the green color starts to fade, the color change
has begun and the indicator should therefore

The recommended levels of moisture content
are usually between 30 and 75 ppm, where
hermetic compressors only tolerate very low
moisture content, while semi-hermetic and other

be watched more carefully. If the color changes
to yellow it is a clear signal, that the capacity of
the filter drier is exceeded and must be replaced
immediately.

compressors normally tolerate higher moisture
contents in the refrigerant.

Note: When storing, transporting or installing the Sight Glass, avoid the chemical indicator
to get in contact with non-refrigerant medium or fluid (like water, oil, ect.)

All Danfoss products fulfill the requirements in REACH.
One of the obligations in REACH is to inform customers about presence of Candidate list substances if
any, we hereby inform you about one substance on the candidate list:
A moisture indicator in a sight glass contains a paper which is impregnated with Cobalt Dichloride
(CAS no: 7646-79-9) in a concentration above 0.1% w/w. If the valve has been damaged or dismantled:

- Avoid skin contact with the paper

- Do not inhale the dust from the paper

- The paper must be disposed as hazardous waste

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Data sheet High pressure sight glass, SGP X, SGP I, SGP N, SGP RX, SGP RI and SGP RN

I type indicator for R290, R600, R600a and R1234yf

Moisture content ppm = parts per million

I type indicator

Media temperature 25 °C / 77 °F Media temperature 43 °C / 109 °F

Green /

dry

R290 < 25 25 – 50 > 50 < 50 50 – 100 > 100

R600 < 10 10 – 20 > 20 < 28 28 – 55 > 55

R600a < 11 11 – 22 > 22 < 30 30 – 60 > 60

R1234yf < 93 93 – 130 > 130 < 130 130 – 247 > 247

N type indicator for R134a, R22, R32, R404A, R407A, R407C, R407F, R407H, R410A, R448A,
R449A, R450A, R452A, R452B, R454B, R454C, R455A, R463A, R507, R513A, R515B, R1233zd(E),
R1234ze(E), R1270, R744 (CO2 )

Media temperature 25 °C / 77 °F Media temperature 43 °C / 109 °F

Green /

dry

R134a < 30 30 – 100 > 100 < 45 45 – 170 > 170

R22 < 30 30 – 120 > 120 < 50 50 – 200 > 200

R32 < 64 64 – 289 > 289 < 116 116 – 459 > 459

R404A < 20 20 – 70 > 70 < 25 25 – 100 > 100

R407A < 29 29 – 115 > 115 < 48 48 – 192 > 192

R407C < 30 30 – 140 > 140 < 60 60 – 225 > 225

R407F < 30 30 – 168 > 168 < 60 60 – 240 > 240

R407H < 35 35-180 > 180 < 60 60-365 > 365

R410A < 66 66 – 266 > 266 < 135 135 – 540 > 540

R448A < 28 28 – 110 > 110 < 70 70 – 227 > 227

R449A < 29 29 – 105 > 105 < 53 53 – 200 > 200

R450A < 23 23 – 148 > 148 < 46 46 – 245 > 245

R452A < 20 20 – 79 > 79 < 30 30 – 143 > 143

R452B < 70 70 – 260 > 260 < 144 144 – 260 > 260

R454B < 29 29 – 161 > 161 < 58 58 – 250 > 250

R454C < 25 25-115 > 115 < 30 30-190 > 190

R455A < 20 20-95 > 95 < 25 25-145 > 145

R463A < 55 55-280 > 280 < 95 95-435 > 435

R507 < 15 15 – 60 > 60 < 30 30 – 110 > 110

R513A < 22 22 – 75 > 75 < 22 22 – 123 > 123

R515B < 20 20-95 > 95 < 20 20-140 > 140

R1233zd(E) < 18 18-90 > 90 < 20 20-150 > 150

R1234ze(E) < 26 26 – 132 > 132 < 28 28 – 165 > 165

R1270 < 16 16 – 62 > 62 < 29 29 – 115 > 115

R744 (CO2 ) < 80 80 – 195 > 195 - - -

Notes:

• For a fully updated list of approved refrigerants, visit http://store.danfoss.com/ and search for
individual code numbers, where refrigerants are listed as part of product details.

• Only solder versions are allowed for flammable refrigerant.

This product is approved for R290, R32, R452B, R454B, R454C, R455A, R600, R600a,R1234yf and
R1270 by ignition source assessment in accordance to standard EN13463-1.

• For colours reflecting moisture values of other refrigerants and other media temperature, please

contact Danfoss.

• SGP with indicator is not suitable for oil application. For detailed information please contact

Danfoss.

• Socket type can be used with refrigerant R744 (CO2 )except for the version with float ball.

• Socket type can be used with refrigerant R1233zd(E) except for the version with gasket.

• For the Max. media temperature which is above 55 °C /131 °F for socket type with float ball,

please consult Danfoss.

Intermed.

color

Moisture content ppm = parts per million

Intermed.

color

Yellow /

wet

N type indicator

Yellow /

wet

Green /

dry

Green /

dry

Intermed.

color

Intermed.

color

Yellow /

wet

Yellow /

wet

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Data sheet High pressure sight glass, SGP X, SGP I, SGP N, SGP RX, SGP RI and SGP RN

For the application use with R744 as part of a secondary loop or cascade:

1. The design pressure of the refrigerant containing component is not less than the design pressure
of the associated components.

2. The component is not provided with any pressure relief or pressure regulating relief valve and that
a sufficient number of valves having capacity deemed adequate shall be field-installed on the
refrigeration system.

3. When the refrigeration system is de-energized, venting of R744 may occur through the pressure
regulating relief valves, and may need to be recharged, but the valve should not be defeated or
bypassed.

4. A sufficient number of pressure relief and pressure regulating valves may need to be provided
based upon system capacity and located such that no stop valve is provided between the relief
valve and the parts or section of the system being protected.

Ordering

SGP X without indicator

SGP I with I type indicator

Type Connection type

SGP 10 X Flare ext. × ext.

SGP 12s X

SGP 16s X

Solder ODF x ODF

SGP 22s X

Type Connection type

SGP 6 I

SGP 10 I

SGP 12 I

Flare ext. × ext.

SGP 16 I

SGP 19 I

SGP 6 I

SGP 10 I

SGP 12 I

Flare int. × ext.1)

SGP 16 I

SGP 19 I

SGP 6s I

SGP 10s I

SGP 12s I

ODF × ODF solder

SGP 16s I

Connection

[inch] [mm]

3

8

⁄

1

2

⁄

5

8

⁄

7

8

⁄

10 014L0080

– 014L0086

16 014L0087

22 014L1207

Connection

[inch] [mm]

1

4

⁄

3

8

⁄

1

2

⁄

5

8

⁄

3

4

⁄

1

4

⁄

3

8

⁄

1

2

⁄

5

8

⁄

3

4

⁄

1

⁄4 – 014L0034

6 014L0007

10 014L0008

12 014L0009

16 014L0024

19 014L0028

6 014L0021

10 014L0022

12 014L0025

16 014L0026

19 014L0043

– 6 014L0040

3

8

⁄

– 014L0035

– 10 014L0041

1

2

⁄

– 014L0036

– 12 014L0042

5

8

⁄

16 014L0044

Code no.

Multi pack

Code no.

Multi pack

SGP 18s I – 18 014L0045

3

SGP 19s I

SGP 22s I

SGP 6s I

SGP 10s I

SGP 12s I

SGP 16s I

SGP 22s I

ODF × ODM solder

4

⁄

7

8

⁄

1

4

⁄

3

8

⁄

1

2

⁄

5

8

⁄

7

8

⁄

19 014L0047

22 014L0039

– 014L0125

– 014L0126

– 014L0127

16 014L0128

22 014L0130

2

)

2

)

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Data sheet High pressure sight glass, SGP X, SGP I, SGP N, SGP RX, SGP RI and SGP RN

Ordering

SGP N with N type indicator

Type Connection type

SGP 6 N

SGP 10 N

SGP 12 N

SGP 16 N

SGP 19 N

SGP 6 N

SGP 10 N

SGP 12 N

SGP 16 N

SGP 19 N

SGP 6s N

SGP 10s N

SGP 12s N

SGP 16s N

SGP 18s N – 18 014L0195

SGP 19s N

SGP 22s N

SGP 22s N 3) 11⁄

SGP 6s N

SGP 10s N

SGP 12s N

SGP 16s N

SGP 22s N

1

) Can be screwed directly into the filter drier

2

) For the code selection of Industrial pack version please contact Danfoss.

3

) Oversize connections

Flare ext. × ext.

Flare int. × ext. 1)

ODF × ODF solder

ODF × ODM solder

Connection

[inch] [mm]

1

4

⁄

3

8

⁄

1

2

⁄

5

8

⁄

3

4

⁄

1

4

⁄

3

8

⁄

1

2

⁄

5

8

⁄

3

4

⁄

1

4

⁄

6 014L0161

10 014L0162

12 014L0163

16 014L0165

19 014L0166

6 014L0171

10 014L0172

12 014L0173

16 014L0174

19 014L0175

– 014L0181

Code no.

Multi pack

– 6 014L0191

3

8

⁄

– 014L0182

– 10 014L0192

1

2

⁄

– 014L0183

– 12 014L0193

5

8

⁄

3

4

⁄

7

8

⁄

8

1

4

⁄

3

8

⁄

1

2

⁄

5

8

⁄

7

8

⁄

16 014L0184

19 014L0185

22 014L0186

– 014L0187

– 014L0201

– 014L0202

– 014L0203

16 014L0204

22 014L0206

2

)

Notes:

• Only solder versions are allowed for flammable refrigerants.

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Data sheet High pressure sight glass, SGP X, SGP I, SGP N, SGP RX, SGP RI and SGP RN

Ordering

No indicator

No

Connection

type

G thread G 3⁄4 A ) 1 No 014L0004

NPT

Valve type Indicator

SGP ¾ RX

SGP ½ RX NPT

Indicator

SGP ½ RI

SGP 24 RI M thread M24 × 1 – Yes 014L1154

I type

SGP ½ RN

SGP 24 RN

N type

SGP 20 RN

NPT

NPT

M thread M24 × 1 – Yes 014L1155

M thread M20 × 1.5 – No 014L1601

Saddle

Valve type

Connection

type

Connection

M20 × 1.5

M20 × 1.5 1 1⁄8 80 014-1071

M20 × 1.5 1 3⁄

SGS Tube fitting

M24 × 1

M24 × 1 1 1⁄

M24 × 1 1 3⁄

M24 × 1 1 5⁄

M24 × 1 2 1⁄

1

) ISO 228-1

2

) ANSI/ASME B1.20.1

3

) For the code selection of Industrial pack version please contact Danfoss.

Connection

3

⁄4 – 14 NPT )

1

⁄2 – 14 NPT )

1

⁄2 – 14 NPT 2)

1

⁄2 – 14 NPT 2)

Tube

connection

Float

ball [pc]

With

gasket

1 No 014L0005

3 No 014L0002

3 No 014L0131

3 No 014L0006

Industrial

pack

[in]

7

7

8

⁄

8

8

⁄

8

8

8

8

[pcs]

80 014-1073

80 014-1074

80 014-1059

80 014-1056

80 014-1057

80 014-1058

80 014-1067

Code no.

Multi pack

Code no.

3

)

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Data sheet High pressure sight glass, SGP X, SGP I, SGP N, SGP RX, SGP RI and SGP RN

Dimensions and weights

SI units

D

L

SGP flare, int. × ext.

D

L

D

1

H

H

L

1

1

B

1

H

H

L

1

1

B

L

SGP solder ODF × ODF

D

1

H

H

1

B

1

H

H

L

1

1

B

L

SGP flare, ext. × ext.

SI Units

Type

SGP 6 N, SGP 6 I

SGP 10 N, SGP 10 I 82 – 29 17 19 32 0.2

SGP 12 N, SGP 12 I 88 – 31 19 22 32 0.3

SGP 16 N, SGP 16 I 104 – 38 22 27 32 0.4

SGP 19 N, SGP 19I 110 – 42 23 32 37 0.6

SGP 6 N, SGP 6 I

SGP 10 N, SGP 10 I 57 – 29 17 22 32 0.2

SGP 12 N, SGP 12 I 59 – 31 19 24 32 0.2

SGP 16 N, SGP 16 I 71 – 38 22 27 32 0.4

SGP 19 N, SGP 19 I 75 – 42 23 32 37 0.5

SGP 6s N, SGP 6s I

SGP 10s N, SGP 10s I 119 9 24 15 14 27 0.1

SGP 12s N, SGP 12s I 146 10 29 17 19 32 0.2

SGP 16s N, SGP 16s I 146 12 31 19 22 32 0.2

SGP 18s N, SGP 18s I 173 14 38 22 27 32 0.3

SGP 19s N, SGP 19s I 173 14 38 22 27 32 0.3

SGP 22s N, SGP 22s I 173 17 39 23 27 32 0.3

SGP 22s N, SGP 22s I 1) 173 22 39 23 27 32 0.3

SGP 6s N, SGP 6s I

SGP 10s N, SGP 10s I 119 9 24 15 14 27 0.1

SGP 12s N, SGP 12s I 146 10 29 17 19 32 0.2

SGP 16s N, SGP 16S I 146 12 31 19 22 32 0.2

SGP 22s N, SGP 22s I 173 17 38 22 27 32 0.3

1

) Oversize connections

Connection
type

Flare
ext. x ext.

Flare
int. × ext.

Solder
ODF × ODF

Solder
ODF × ODM

L L

[mm] [mm] [mm] [mm] [mm] [mm] [Kg]

67 – 25 15 14 27 0.1

46 – 25 15 16 27 0.1

101 7 24 15 14 27 0.1

101 7 24 15 14 27 0.1

SGP solder ODF × ODM

H H

1

B

1

øD

1

weight

Net

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Data sheet High pressure sight glass, SGP X, SGP I, SGP N, SGP RX, SGP RI and SGP RN

Dimensions and weights

US units

D

L

SGP flare, int. × ext.

D

L

D

1

H

H

L

1

1

B

1

H

H

L

1

1

B

L

SGP solder ODF × ODF

D

1

H

H

1

B

1

H

H

L

1

1

B

L

SGP flare, ext. × ext.

US Units

Type

SGP 6 N, SGP 6 I

SGP 10 N, SGP 10 I 3.23 – 1.14 0.67 0.75 1.26 0.44

SGP 12 N, SGP 12 I 3.46 – 1.22 0.75 0.87 1.26 0.66

SGP 16 N, SGP 16 I 4.09 – 1.50 0.87 1.06 1.26 0.88

SGP 19 N, SGP 19I 4.33 – 1.65 0.91 1.26 1.46 1.32

SGP 6 N, SGP 6 I

SGP 10 N, SGP 10 I 2.24 – 1.14 0.67 0.87 1.26 0.44

SGP 12 N, SGP 12 I 2.32 – 1.22 0.75 0.94 1.26 0.44

SGP 16 N, SGP 16 I 2.80 – 1.50 0.87 1.06 1.26 0.88

SGP 19 N, SGP 19 I 2.95 – 1.65 0.91 1.26 1.46 1.10

SGP 6s N, SGP 6s I

SGP 10s N, SGP 10s I 4.69 0.35 0.94 0.59 0.55 1.06 0.22

SGP 12s N, SGP 12s I 5.75 0.39 1.14 0.67 0.75 1.26 0.44

SGP 16s N, SGP 16s I 5.75 0.47 1.22 0.75 0.87 1.26 0.44

SGP 18s N, SGP 18s I 6.81 0.55 1.50 0.87 1.06 1.26 0.66

SGP 19s N, SGP 19s I 6.81 0.55 1.50 0.87 1.06 1.26 0.66

SGP 22s N, SGP 22s I 6.81 0.67 1.54 0.91 1.06 1.26 0.66

SGP 22s N, SGP 22s I 1) 6.81 0.87 1.54 0.91 1.06 1.26 0.66

SGP 6s N, SGP 6s I

SGP 10s N, SGP 10s I 4.69 0.35 0.94 0.59 0.55 1.06 0.22

SGP 12s N, SGP 12s I 5.75 0.39 1.14 0.67 0.75 1.26 0.44

SGP 16s N, SGP 16S I 5.75 0.47 1.22 0.75 0.87 1.26 0.44

SGP 22s N, SGP 22s I 6.81 0.67 1.50 0.87 1.06 1.26 0.66

1

) Oversize connections

Connection
type

Flare
ext. x ext.

Flare
int. × ext.

Solder
ODF × ODF

Solder
ODF × ODM

L L

[in] [in] [in] [in] [in] [in] [lb]

2.64 – 0.98 0.59 0.55 1.06 0.22

1.81 – 0.98 0.59 0.63 1.06 0.22

3.98 0.28 0.94 0.59 0.55 1.06 0.22

3.98 0.28 0.94 0.59 0.55 1.06 0.22

SGP solder ODF × ODM

H H

1

B

1

øD

1

Net

weight

© Danfoss | DCS (nb) | 2019.07

AI223286434112en-000701 | 8

Dimensions and weights

SGP socket

H

H

1

1

B

Type

Connection
type

Connection

H H1 B1 Net. weight

[mm] [mm] [mm] [kg]

SGP 3⁄4 RX G thread G 3/4 A 1) 24 10 32 0.1

SGP 1⁄2 RX NPT

SGP 3⁄4 RX NPT

SGP 1⁄2 RN / SGP 1⁄2 RI NPT

1

/2 – 14 NPT 2) 31 18 27 0.1

3

/4 – 14 NPT 2) 32 18 32 0.1

1

/2 – 14 NPT 2) 31 18 27 0.1

SGP 24 RN / SGP 24 RI M thread M24 × 1 29 15 32 0.1

SGP 20 RN M thread M20 x 1.5 26 13 27 0.1

Type

Connection
type

Connection

H H1 B1 Net. weight

[in] [in] [in] [lb]

SGP 3⁄4 RX G thread G 3/4 A 1) 0.94 0.39 1.26 0.22

SGP 1⁄2 RX NPT

SGP 3⁄4 RX NPT

SGP 1⁄2 RN / SGP 1⁄2 RI NPT

1

/2 – 14 NPT 2) 1.22 0.71 1.06 0.22

3

/4 – 14 NPT 2) 1.26 0.71 1.26 0.22

1

/2 – 14 NPT 2) 1.22 0.71 1.06 0.22

SGP 24 RN / SGP 24 RI M thread M24 × 1 1.14 0.59 1.26 0.22

SGP 20 RN M thread M20 x 1.5 1.02 0.51 1.06 0.22

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