Instruction manual for Fisher 133 Series direct‑operated gas regulators covering specs, installation, adjustment, maintenance and parts.
The Fisher 133 Series direct‑operated regulators are designed for industrial and commercial gas service, supplying furnaces, burners and other appliances. The manual provides specifications, installation procedures, over‑pressure protection, startup, adjustment, shutdown, maintenance and parts ordering information.
Safety warnings emphasize the need for qualified personnel, proper downstream control line installation, and use of pressure gauges during adjustment and startup. Detailed disassembly and re‑assembly steps are included for all regulator types (133H, 133L, 133Z, 133HP).
| Outlet pressure range (133H) | 1.5 to 10 psig / 0.10 to 0.69 bar |
|---|---|
| Maximum operating inlet pressure (133H) | 60 psig / 4.1 bar |
| Body material (133H) | Cast Iron |
| Internal connection size (133H, 133L, 133Z) | 3/4 NPT |
| Approximate weight (133H NPT) | 35 lbs / 16 kg |
| Temperature capability | -20 to 150°F / -29 to 66°C |