Peter Skop Industries

Compressed Gas Division

RegO_®  4286, 4289 & 4291 Series Inertrol Outfits

The 4286, 4289, and 4291 series inertrol outfits are three-stage nitrogen regulators especially designed to maintain oil-filled transformer atmospheres at 0.5 PSIG. Each inertrol outfit consists of a two-stage regulator connected in series to a highly sensitive single-stage regulator which maintains the 0.5 PSIG pressure. A built-in pressure relief valve in the third-stage regulator helps protect against over-pressurization of the system. 

These inertrol units are designed for oil-filled transformers manufactured by ABB, Inc., General Electric, and Cooper Power. Some outfits are equipped with an alarm gauge that activates a customer equipped warning device should the cylinder pressure drop below 300 PSIG.

Features

· Heavy duty brass and aluminum construction resists corrosion and provides for longer life.

· The 4289 series incorporates a special by-pass valve to allow for quick filling of the transformer.

· Hidden pressure adjusting screw helps protect against tampering by unauthorized personnel.

· Large diameter diaphragm in the third-stage regulator provides for sensitive and precise control of the gas flow.

Materials

Two-Stage Regulator:

Body ..............................................................................Brass

Bonnet ...........................................................................Brass

Diaphragms..................................................Synthetic Rubber

1st Stage Seat Disc........................................................Nylon

2nd Stage Seat Disc ................................................Neoprene

Third-Stage Regulator:

Body........................................................................Aluminum

Bonnet.....................................................................Aluminum

Diaphragm...................................................................Buna N

Seat Disc.....................................................................Buna N

Ordering Information