Check-Trol™ Isolation Flow Control Flange - Bell & Gossett world leader in supplying the Heating/Ventilating/Air Conditioning (HVAC) industry.

Check-Trol™ Isolation Flow Control Flange

Three features in one valve: Check-Trol is the solution for circulator installations. Installing a Check-Trol on the discharge of the circulator gives you the features of a Flow Control Valve, Isolation Valve and Companion Flange. Another advantage of the Check-Trol is the minimal pressure drop, especially when compared to the losses that can be experienced when a check valve is installed internal to the circulator. The Check-Trol flanges are packaged with an isolation flange of the same size to create a pair. Capscrews and nuts are included.

Flow Control Valve
• Prevents gravity circulation and flow in the wrong direction.

Isolation Valve
• Allows for servicing or replacement of the circulator without draining the system.

Companion Flange
• Free-floating companion flanges allow easy alignment for optimal handle positioning.

Available sizes: 3/4”, 1”, and 1-1/4” NPT and Sweat.
Patent Pending

Check-Trol Isolation Flow
Control Flange

APPLICATIONS:
Can be used with most circulators, including NRF/NBF/SSF wet rotors, Series PLs, 100, HV, PR and LR, and other manufacturers’ pumps.

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