Description
Fire Protection Products’ Sight Glass are cast from high quality brass* alloy. This assures lasting performance and serviceability. Available in both “full flow” and “restricted orifice” design. Flow can be viewed through two high impact Lexan (polycarbonate) windows on either side of the sight glass. All models feature male by female thread patterns for easy “in line” installation. The “full flow” design is suitable for system flow verification. The restricted orifice types can be used to simulate system sprinkler head flow which can be viewed through either window. Not designed to be used under pressure.