Visor Retentor - PG71
PG71 sight glasses are designed to check the flow of cooling water, lubricants, air, steam, etc. in a pipe line.
They may also be used to check the functioning of steam traps. This simple device is also an effective back-flow preventer. Suitable for horizontal installation.
USE: Water, oil, steam, air and other non- corrosive media.
SIZES: NPS 1/2, 3/4, 1
CONNECTIONS: Screwed (NPT/BSPT/BSP)