产品详情


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·Both Model SGN sight glass and Model SGS sight glass are used on the liquid piping of the refrigeration and air conditioning unit to indicate the flow condition of the refrigerant, water cut of the refrigerant and lubricant oil flow condition of the oil return piping on the oil separator.

·Model SGN sight glass and Model SGS sight glass are equipped with one moisture indicator, which will change color to indicate the water cut in the refrigerant.

·Model SGR sight glass is used to indicate the level of the refrigerant in
the liquid drum and the lubricant oil level in the compressor crankcase.

·The modified PTFE sealing is used in bothModel SGN sight glass and Model SGR sight glass, which is applicable to various refrigerants and oils with perfect sealing performance. The structure of both Model SGN sight glass and Model SGR sight glass is an explosion-proof press fit and the viewing glass is clear and safety.

·Model SGS sight glass is an independent body structure with conventional sintered glass and O-ring seal.



产品型号.jpg


Model of Welded ConnectionSizeModel of Threaded ConnectionSize
SGN-1/4 ODFSGN-1/4 ODF1/4(Φ6)SGS-1/4 SAESGS-1/4 SAE1/4(Φ6)
SGN-3/8 ODFSGN-3/8 ODF3/8(Φ10)SGS-3/8 SAESGS-3/8 SAE3/8(Φ10)
SGN-1/2 ODFSGN-1/2 ODF1/2(Φ12)SGS-1/2 SAESGS-1/2 SAE1/2(Φ12)
SGN-5/8 ODFSGN-5/8 ODF5/8(Φ16)SGS-5/8 SAESGS-5/8 SAE5/8(Φ16)
SGN-3/4 ODFSGN-3/4 ODF3/4(Φ19)SGS-3/4 SAESGS-3/4 SAE3/4(Φ19)
SGN-78 ODFSGN-78 ODF7/8(Φ22)SGR-3/4NPT3/4NPT
——————SGR-G3/4G3/4





技术参数.jpg


Applicable Refrigerant:HCFC and HFC
Applicable Medium Temperature:-40℃~+80℃
Max.Operating Pressure4.5MPa
Max.Allowable Pressure6.8MPa
Yearly Leakage of Refrigerant≤2g R22/a



Note: For the fully enclosed compressor, generally the allowable water cut is in a range 30~75ppm, but for other types of compressor, the water cut will be higher slightly. For an effective protection, it is necessary to monitor the indicator carefully and replace the drier immediately if the color is changed into yellow.

Correlation betwen Water Cut and Color:



Water Cut(ppm)
25℃43℃
Green/DRYMedium ColorYellow/WETGreen/DRYMedium ColorYellow/WET
R22/R502<3030~120>120<5050~200>200
HFC-134a<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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Model
ABΦCΦDEFLSThread MWeight(g)
SGNSGS
SGN/SGS-1/4ODF9.514.5286.572710214——105125
SAE————14647/16-20UNF145145
SGN/SGS-3/8ODF10.1836119——110155
SAE12.516.5————1770195/8-18UNF215195
SGN/SGS-1/2ODF12.81046146——170150
SAE1318————1978223/4-16UNF240210
SGN/SGS-5/8ODF16.11446152——190220
SAE152031.5————2078247/8-14UNF350300
SGN/SGS-3/4ODF19.11651167——270230
SAE1823————2394291-1/16-14UNS545440
SGN/SGS-7/8ODF16.521.522.3175417327——315290
SGR-3/4NPTNPT10.513——————————323/4NPT90
SGR-G3/4GG3/470



Contact Email hongsen6@zjhsjx.com Contact Us 0575-87696107 Contact address: Refrigeration Industrial Park, Diankou Town, Zhuji City, Zhejiang Province Fax 0575-87698985

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