Emerson Fisher 67CD Series 1/2 in. FNPT High-Pressure Regulator w/ Dial Cap Adjustment 50 PSI, 1.5M BTU/HR

Fisher automatic changeover regulators change from the supply cylinder (when gas is exhausted) to the reserve cylinder automatically. Type 749B is a large capacity changeover manifold for commercial and industrial applications. It consists of two 64 Series regulators and a Type 803 direct indicator. The assembly is used primarily in conjunction with either a Type HSRL or 64SR regulator.

This product is backed by a 10 year warranty.

Note: These units are intended for use with Second-Stage regulators and/or separate relief devices which provide overpressure protection required by NFPA 58. Capacity of all these changeover manifolds is dependent on the size of the Second-Stage regulator with which they are used. If the manifolds are used as a Final-Stage (pounds-to-pounds), a relief valve is required in the downstream system.

Specifications

• Capacity: 1,500,000 BTU/hr (11.3 SCMH)
• Inlet Connection: 1/2 in. FNPT
• Outlet Connection: 1/2 in. FNPT
• Maximum Inlet Pressure: 250 psig (17.2 bar)
• Maximum Emergency Outlet Pressure:
• For Type 64 Regulators Used: 220 psig (15.2 bar)
• For Type HSRL Final Stage Regulator: 3 psig (0,21 bar)
• Standard Outlet Setting:
• Supply: 15 psig (1 bar)
• Reserve: 5 psig (0,34 bar)
• Temperature Capabilities: -20° to 160°F (-29° to 71°C)
• UL Listed: Type 749B, Second-Stage Regulators are Listed Separately
• Warranty: 10 Years

Downloads

749B Instruction Manual (PDF Download)

749B Schematic (PDF Download)