Model SG Sight Glass

Model SG Sight Glass
Applicable Refrigerant: HCFC and HFC
Applicable Medium Temperature: -40℃~+80℃
Max.Operating Pressure: 4.5MPa
Max.Allowable Pressure: 6.8MPa
Yearly Leakage of Refrigerant : ≤2g R22/a
$0.00
Description
Description
;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;-webkit-text-stroke-width:0px;text-decoration-thickness:initial;text-decoration-style:initial;">• 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.
• 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.
Feature

Model SGN and Model SGS
Indicate high water cut in system if any.
- Indicate no overcooling in refrigerant liquid.
- Indicate insufficient charging of refrigerant if any.
 - Both welded and threaded connections are available.
- Be applicable to HCFC/HFC refrigerants.

Model SGR
- Be applicable to HCFC/HFC refrigerants.
- Indicate the liquid level in the liquid drum.
- Indicate the oil level in the compressor crankcase.
- NPT threaded connection.
 
Specification
 
 
Model of Weleded Connection
SGN-1/4 ODF 
SGN-3/8 ODF 
SGN-1/2 ODF 
SGN-5/8 ODF 
SGN-3/4 ODF 
SGN-7/8 ODF 
SGN-1 1/8 ODF 
SGN-1/4 SAE
SGN-3/8 SAE
SGN-1/2 SAE
SGN-5/8 SAE
SGN-3/4 SAE
SGN-3/4 SAE
SGR-G3/4
Size   
1/4"(Φ6)
3/8"(Φ10)
1/2"(Φ12)
5/8"(Φ16)
3/4"(Φ19)
7/8"(Φ22)
1 1/8"(Φ28)
1/4 SAE
3/8 SAE
1/2 SAE
5/8 SAE
3/4 SAE
3/4 NPT
G3/4
 
 
 
 
MODEL
SGN-1/4 
SGN-1/4 
SGN-3/8
SGN-3/8
SGN-1/2
SGN-1/2
SGN-5/8
SGN-5/8
SGN-3/4
SGN-3/4
SGN-7/8
SGR-3/4NPT
SGR-G3/4
tYPE
A  
B
ΦC
ΦD  
E   
F
S
Thread m
weight(g)
Sgn 
ODF 9.5 14.5 28 6.5 7 27 102 14 —— 105
SAE 9.5 14.5 28 —— —— 14 64 14 7/16-30UNF 145
ODF 12.5 16.5 28 10.1 8 36 119 14 —— 110
SAE 12.5 16.5 28 —— —— 17 70 19 5/8-18UNF 215
ODF 13 18 28 12.8 10 46 146 19 —— 170
SAE 13 18 28 —— —— 19 70 22 3/4-16UNF 240
ODF 15 20 31.5 16.1 14 46 152 22 —— 190
SAE 15 20 31.5 —— —— 20 80 24 7/8-14UNF 350
ODF 18 23 31.5 19.1 16 51 167 24 —— 270
SAE 18 23 31.5 —— —— 23 90 29 1-1/16-14UNS 545
ODF 16.5 21.5 31.5 22.3 17 54 173 27 —— 315
NPT 10.5 13 —— —— —— —— —— 32 3/4NPT 90
G 10.5 13 —— —— —— —— —— 32 G3/4 70