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Two Stage Pack Combination Regulators
Because of the wide use of two-stage regulation, we have packaged the most popular Fisher first and second stage domestic regulator combinations. The packs contain an inlet adapter (or pigtail) for attaching the first stage regulator to the service valve on the tank.
Two-stage regulation assures uniform pressure to the appliances at all times, and greatly reduces the chance of trouble calls. A two-stage system also permits the use of smaller piping of tubing between the tank and building being served.
ST922-233 includes the M318 POL Adapter, STR122H First Stage Regulator and STR532-BCF Second Stage Regulator.
ST922-234 includes the M345 Angle POL Adapter, STR122H First Stage Regulator and STR532-BCF Second Stage Regulator.