DuFLine® Sight Indicators are engineered for durability and optimal performance in demanding industrial environments. The housing is constructed from DI casted as per ASTM A395 material, with flange dimensions adhering to ANSI B16.5 #150 standards. Each unit features a high-quality PFA lining in compliance with ASTM D3307, ensuring excellent chemical resistance. The lining is tested rigorously in accordance with ASTM F1545 (2009) standards to guarantee reliability and longevity. For enhanced protection against corrosion, the external surface is coated with a two-layer epoxy primer. Additionally, DuFLine®offers a double window sight glass in stainless steel (SS), providing superior visibility and structural integrity in high-pressure applications.