Series GY
Series GY visual flow indicator shall have a dual clear cylinder walls to indicate flow and clarity of liquids compatible with Pyrex inner wall. Outer protective wall shall be Acrylic. End connections are [1/2, , 1, 1 , 1 , 2 or 3] in [PVC or natural polypropylene] with [NPT or BSP] threaded connections. Seals shall be [EPDM or FKM]. [Sight glass shall have PVC fluttering streamers for visualization of liquid motion]. All units are to be 100% individually tested at the factory. As manufactured by Plast-O-Matic Valves, Inc., Cedar Grove, NJ.