V-1 Sight Glass

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V-1 Sight Glass

The sight glass is the important refrigerationequipment. The indicator provided by this sight glass can tell the watercontent in the refrigeration agent by variation of colors. It looks mazarine blue when the refrigeration agent has the leastmoisture content, while it looks pink for maximum moisture content. At thattime, it means that the dry filter needs replacement. Medium temperature isbetween -50℃ and 80℃. Applicable media: CFC, HCFC, HFC, andHCFV.

The sight glass canbe used to indicate the following:
1) Refrigerant state in liquid line in the refrigerating plant.
2) Liquid water content of refrigerant.
3) Liquid flow in oil return pipe from oil separator to compressor.

Technicalspecifications

For welding connection

Model	Coupling	Outside diameter of connection tube
Model	Coupling	British system	Metric system
V-16	Welding flaring		6
V-14		1/4
V-10			10
V-13		3/8
V-12			12
V-11		1/2
V-18			16
V-15		5/8
V-19			19
V-34		3/4
V-22			22
V-78		7/8
V-28			28
V-108		1-1/8

For screw thread connection

Model	Coupling	Outside diameter of connection tube
Model	Coupling	British system	Metric system
V-101	Bell mouthing screw thread		6
V-102			10
V-103			12
V-104			16
V-105	External thread-internal thread		6
V-106			10
V-107			12
V-108	External thread-nut		10
V-109	External thread-nut		12
V-110	Nut-nut		10
V-111	Nut-nut		12
V-112	Directly welded to the system pipeline	1"
V-113		1-1/2"
V-114		2"