Miller® Three-Stage Nitrogen Blanketing Regulator, .5 PSIG - This preset three-stage regulator is specially designed to deliver a highly accurate and consistent low-pressure supply of nitrogen to oil-filled power transformers. The regulator will deliver and maintain 0.50 PSIG in the head space of oil-filled transformers. A built-in self-relieving valve set at 8 PSIG protects the system from over-pressurization due to temperature variation. Both models come with rapid-fill bypass pressure valve allowing rapid filling of the transformer with 6 PSIG of pressure.
Features
The highly reliable design provides constant outlet pressure and flow
Brass, aluminum and plated zinc construction provides corrosion resistance resulting in longer field life
Adjusting screws are concealed to prevent tampering
Tubes are made of shatter-resistant polycarbonate resin and feature multiple scales
Miller-Smith's exclusive ball-centering flow tube provides accurate flow readings even if the tube is tipped
This ensures good weld quality and gas savings
Non self-centering flow tube ball tends to float off center
Actual gas flow can be up to 2-1/2 times greater than is indicated
Note: Self-centering ball guide available on 16530 and 16531 models only
Low pressure nitrogen gas blanketing of oil filled sub-station power transformers
