No image available
No image available
Your request is being processed.
Planned Maintenance
 We are currently performing scheduled maintenance. Some site functions are impacted and may not work as expected. Thank you for your patience.
  • Home
  • Fisher™ Type749B Changeover Manifold Assemblies
Fisher-P-749B

Fisher™ Type749B Changeover Manifold Assemblies

Contact Us
Check Order Status

Product Description

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.

Features

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

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

Documents & Drawings