Welding Sight Glass (1/4" 3/8" 1/2" 5/8" 3/4" 7/8" 1-1/8")

We are engaged in offering excellent quality Orifice For Expansion Valve to our valuable clients.

Sight glass are used to show:
1)The condition of the refrigerant in the plant liquid line
2)The moisture content in the refrigerant
3)The flows in the oilreturn line from the oil separator

The sight glasses are fitted with an indicator which changges color to show the moisture content in the refrigerant.

The indicator shows dark bule while containing low water,and shows pink while containing much water.In case of showing pink,you have to look for what is cause from or change filter drier in system.

Technical data:
Max. working pressure :3.5Mpa
Max. working temperature:80A A A A A A A A c
Available medium:R134a,R22,R407C and R404A R507
Moisture content(Unit:P.P.M)
Refrigerant R-22 R-22 R-22 R-134a R-134a R-134a
Liquid temperature 24A A A A A A A A c 38A A A A A A A A c 52A A A A A A A A c 24A A A A A A A A c 38A A A A A A A A c 52A A A A A A A A c
Blue (dry) <30 <45 <60 <30 <45 <60
Light bule(warning) 30 to 120 45 to 180 60 to 240 30 to 100 45 to 160 60 to 220
Pink(moisture) >120 >180 >240 >100 >160 220