Fisher Regulator / 64 Series Commercial/Industrial High-Pressure Regulators

**Description:** The 64 Series high-pressure regulators are designed to reduce tank pressure to an intermediate level for use by another regulator. They are suitable for use on distribution systems when paired with a First-Stage downstream regulator. The Type 64SR can serve as a First-Stage regulator if set to 10 psig (0.69 bar). Additionally, they can be used as Final-Stage regulators for high-pressure burners in crop dryers, tobacco curers, and other medium-sized commercial or industrial applications. **Specifications:** - **Side Outlet:** Comes with a 1/4 inch FNPT side outlet, typically plugged, which can be used for an outlet pressure gauge. - **Temperature Handling:** Standard 64 Series regulators can handle liquid or vapor at temperatures up to 150°F (66°C). - **Vent Protection:** For outdoor installations, use a cover or auxiliary vent assembly to protect the 1/4 inch FNPT regulator vent opening. - **Temperature Rating:** The 64 and 64SR Series are rated for temperatures from -20°F to 150°F (-29°C to 66°C). **Specific Models:** - **64 Series:** An adjustable high-pressure regulator with a broad range of outlet pressure options. It does not include an internal relief valve and should always be used with a downstream regulator and/or additional relief devices to meet NFPA 58 overpressure protection standards. - **Type 64SR:** A high-pressure regulator with an internal relief valve, making it suitable as a Final-Stage regulator for high-pressure systems. It can also function as a First-Stage regulator when set to 10 psig (0.69 bar) or less.