Pattented "Free Turn" design that isolates the interworkings from corosive fluids (salt water, H₂S, etc.), preventing the seizing common in conventional valves.

Carbon steel or stainless steel for 5/9" O.D. Glass tube or model TE armored tubular sight glass

Offset pattern allows easy cleaning of glass tube

All wetted parts conform to NACE MR0175

3/4" M-NPT vessel connection size

Length of glass tube or model te = vessel c-c minus 2"

Automatic safety ball checks are included

Viton glass seals, O-ring size 2-208

Rated to 600 psi (limited by rating of the glass)