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HVAC Sight Glass Moisture Indicator,Compressor Oil Level Indicator SGI / SGRI /SGN / SGRN series

Categories HVAC control tools
Model Number: SGI / SGRI /SGN / SGRN series
Certification: CE/ UL
Place of Origin: Denmar/kChina
MOQ: 1pc
Price: Negotiable
Payment Terms: T/T, L/C, Western Union, MoneyGram,Paypal
Supply Ability: 1000pcs per month
Delivery Time: 3-7 working days
Packaging Details: Carton box
Material: Brass
Refrigerant: R22 R134A R404A R507 R407C
Application: Refrigeration Parts
Usage: Oil Level Indicator
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    HVAC Sight Glass Moisture Indicator,Compressor Oil Level Indicator SGI / SGRI /SGN / SGRN series

    HVAC Sight Glass Moisture Indicator,Compressor Oil Level Indicator SGI / SGRI /SGN / SGRN series


    The sight glass is used to indicate:
    1. Refrigerant status of refrigerant in the liquid line
    2. The water content in the refrigerant
    3. Flow condition of the lubricating oil in the return line from the oil separator
    4. SG1 / N / H and SGR1 / N / H sight glasses with an indicator, by changing the color to indicate the refrigerant in the water content


    Product Features:
    1. For HFC refrigerants
    2. Indicate excessive water content in the refrigeration system
    3. No indication of supercooling of refrigerant liquid
    4. Insufficient refrigerant charge indicator
    5. Bell, welding, plug-in


    Technical Parameters:
    Ambient temperature: -50 ℃ ~ +80 ℃
    Maximum working pressure:
    SG PS / MWP = 35 bar
    SG1 / SGN PS / MWP = 35 bar
    SGR / SGR1 / SGRN PS / MWP = 35 bar
    SGH6, 6s-22s PS / MWP = 46 bar

    Type SGI / SGRI

    • For HCFC and CFC refrigerants

    • Indicates too high water contents in the refrigeration system

    • Indication of lack of subcooling

    • Indication of refrigerant deficiency

    • Flare- or solder connection

    • Type SGN / SGRN

    • For HFC and HCFC refrigerants

    • Indicates too high water contents in the refrigeration system

    • Indication of lack of subcooling

    • Indication of refrigerant deficiency Product Description

    • Flare- or solder connection

    Liquid& Moisture Indicator

    Indicator is used to indicate the condition of the refrigerant in the plant liquid line, the moisture content in the refrigerant and the flow in the oil return line from the oil separator.

    Refrigerants shortage/Liquid reserviors level/Compressor Oil level indicator.

    1. SG/SGR:
    *can be used for CFC/HCFC/HFC.
    *Refrigerant liquid no subcooling instructions
    *Refrigerants shortage instructions
    *Liquid reserviors liquid level indicator
    * compressor oil instructions
    *Trumpet, brazing, plug-in

    2. SGI & SGRI
    *can be used for HCFC/CFC.
    *Refrigerant liquid no subcooling instructions
    * Instructions in the refrigeration system too high water content
    *Refrigerants prepaid phone is enough instructions
    *Trumpet, brazing, plug-in

    3. SGN/SGRN
    *can be used for HFC
    *Refrigerant liquid no subcooling instructions
    * Instructions in the refrigeration system too high water content
    *Refrigerants prepaid phone is enough instructions
    *Trumpet, brazing, plug-in

    4. SGH/SGRH
    *can be used for R410A
    *Instructions too high water content
    *No cold indicator
    *Refrigerants shortage instructions
    *Trumpet, brazing, plug-in


    • The SGI, SGN, SGR, SGRI or SGRN can be used for CFC, HCFC and HFC refrigerants

    • The SGI and SGN are fitted with an indicator which changes colour to show the moisture content in the refrigerant.

    • The SGR is used to indicate the liquid level in a receiver or the oil level in a compressor crankcase.

    • The SGRN and SGRI is a sight glass like SGR, but supplied with a moisture indicator.

    • The moisture indicator in the sight glasses are dirt repelling.


    Model no.TypeConnection sizeCode No.
    SGN6Flare ext. ext.1/4 1/46 6014-0161
    SGN103/8 3/810 10014-0162
    SGN121/2 1/212 12014-0163
    SGN165/8 5/816 16014-0165
    SGN193/4 3/419 19014-0166
    SGN 61/4 1/46 6014-0171
    SGN10Flare int. ext.3/8 3/810 10014-0172
    SGN121/2 1/212 12014- 0 173
    SGN165/8 5/816 16014-0174
    SGN193/4 3/419 19014-0175
    SGN 6s SGN 10s SGN 12s SGN 16s SGN 19s SGN22sODF ODF solder1/4 1/4 014-0181
    3/8 3/8 014-0182
    1/2 1/2 014-0183
    5/8 5/816 16014-0184
    3/4 3/419 19014-0185
    7/8 7/822 22014-0186
    SGN 6s SGN 10s SGN 12s SGN18sODF ODF solder 6 6014-0191
    10 10014-0192
    12 12014-0193
    18 18014-0195
    SGN 6s SGN 10s SGN 12s SGN 16s SGN 19s SGN22sODF ODM solder1/4 1/4 014-0201
    3/8 3/8 014-0202
    1/2 1/2 014-0203
    5/8 5/816 16014-0204
    3/4 3/419 19014-0205
    7/8 7/822 22014-0206
    SGRNNPT1/2NPT 014-0006

    CodeType
    SG 
    014-1058saddle for 1 5/8
    014-1067saddle for 2 1/8
    014-1068saddle for 3 1/8
    014-1069saddle for 4 1/8
    014-1072saddle for SGRH 3 1/8
    014-0008SGI 10 sight glass M72
    014-0022SGI 10 sight glass M72
    014-0035SGI 10s sight glass M80
    014-0041SGI 10s sight glass M80
    014-0126SGI 10s sight glass M80
    014-0009SGI 12 sight glass M72
    014-0025SGI 12 sight glass M72
    014-0036SGI 12s sight glass M48
    014-0042SGI 12s sight glass M48
    014-0127SGI 12s sight glass M48
    014-0026SGI 15 28 bar 60c
    014-0024SGI 16 sight glass M36
    014-0044SGI 16s sight glass M48
    014-0128SGI 16s sight glass M48
    014-0045SGI 18s M48
    014-0028SGI 19 ext-ext M36
    014-0047SGI 19s
    014-0039SGI 22s ODF 28 bar 80C R12 inc
    014-0130SGI 22s ODF-ODM 28bar 80C R12
    014-0021SGI 6 M72
    014-0007SGI 6 sight glass M80
    014-0040SGI 6s ODF 35 bar 80C R12 MM
    014-0034SGI M80
    014-0125SGI M80
    014-0162SGN 10 sight glass M72
    014-0172SGN 10 sight glass M72
    014-0182SGN 10s sight glass M80
    014-0192SGN 10s sight glass M80
    014-0202SGN 10s sight glass M80
    014-1092SGH 10s
    014-0163SGN 12 sight glass M72
    014-0173SGN 12 sight glass M72
    014-0183SGN 12s ODF 35bar 80C inch
    014-1125SGN 12S
    014-0203SGN 12s sight glass
    014-0193SGN 12s sight glass M48
    014-1130SGN 12S IP-20
    014-1091SGH 12s
    014-0174SGN 16 int-ext 28bar 80C
    014-0165SGN 16 sight glass M36
    014-0184SGN 16s sight glass M48
    014-0204SGN 16s sight glass M48
    014-1094SGH 16s
    014-0195SGN 18s sight glass M48
    014-0166SGN 19 ext-ext
    014-0175SGN 19 int-ext 28bar 80C
    014-0185SGN 19s sight glass M48
    014-0206SGN 22s ODF-ODM 28bar 80C inch
    014-0186SGN 22s sight glass M48
    014-0200SGN 22S sight glass I - 54
    014-0187SGN 22s sight glass MU48
    014-1096SGH 22s
    014-1098SGH 22s
    014-0161SGN 6 ext-ext 35bar 80C
    014-0171SGN 6 sight glass M72
    014-1660SGH 6
    014-0181SGN 6s sight glass M80
    014-0191SGN 6s sight glass M80
    014-0201SGN 6s sight glass M80
    014-1090SGH 6s
    014-0002SGR 1/2 in. NPT M76
    014-0276SGR 1/2 in. BSP I170
    014-0004SGR 3/4" sight glass M76
    014-0005SGR 3/4" sight glass M76
    014-0006SGRN 1/2 in. NPTM76
    014-1070SGRN 1/2 in. I170
    014-0131SGRI 1/2-14NPT
    014-1154SGRI M24X1
    014-1155SGRN M24X1
    014-1601SGRH M20X1/2

    Water content ppm (parts per million)
    SGN/SGRN
    25℃43℃
    Green/DryMiddle ColourYello/WetGreen/DryMiddle ColourYello/Wet
    R22<3030-120>120<5050-200>200
    R134a<3030-100>100<4545-170>170
    R404A<2020-70>70<2525-100>100
    R407C<3030-140>140<6060-225>225
    R507<1515-60>60<3030-110

    >110



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