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FISHER Type 749B

FISHER Type 749B

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.

Specifications

Body Size

1/2 NPT

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 / 1,0 bar 
Reserve: 5 psig / 0,34 bar

Temperature Capabilities

-20° to 160°F / -29° to 71°C

749B 型轉換歧管總成.png

Features

Large Capacity

UL Listed (Type 749B, Second-Stage Regulators are Listed Separately)

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