Medium-Duty Three-Stage Pressure Regulator | MillerWelds

Three-Stage Nitrogen Blanketing Regulator, .5 PSIG


No Switch



Sure-Seat™ Filtered High-Pressure Seat Assembly
30 series two-stage regulators are extremely durable and contain our exclusive Sure Seat™ filtered seat technology. Filtered seats prevent contamination from entering the seating area, reducing repair costs and downtime.
Neoprene Composite Diaphragm
Highly durable neoprene composite diaphragm offers precise adjustment of outlet pressure and extended service life.
Color-Coded Labels
Identifies supply performance capabilities, easy gas service identification and technical information.
Nickel-Plated Bonnet
The nickel-plated bonnet, along with brass body, protects against corrosion.
Shatter-Resistant Gauge Lenses
2.0 inch corrosion-resistant polished brass gauges with shatter-resistant polycarbonate lenses.
True Blue Warranty
All Series 35™ regulators are covered by the Miller True Blue® 3 YR. warranty.
External Relief Valve
Protects regulator from damage do to inadvertent high-pressure surge. Relief valve will release excessive pressure and automatically reset.
Additional Third Stage Regulator
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.


General Specifications

Title Three-Stage Nitrogen Blanketing Regulator, .5 PSIG
Pressure Switch
Regulator Hard Hats
Vent 116 in FNPT
Warranty 1 Years
Miller's Gas Equipment and Gas Control Warranty