Brochure

A-118A

Bell & Gossett

Check-Trol

™

Isolation Flow Control Flange

Can be used with most circulators, including NRF/NBF/SSF

wet rotors, Series PLs, 100, HV, PR and LR, and other

manufacturers’ pumps.

Available sizes: 3/4”, 1”, 1-1/4”, 1-1/2" NPT and Sweat.

Patent Pending

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.

PAGE 1
A-118A Bell & Gossett® 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.
PAGE 2
Bell & Gossett Check-Trol™ Isolation Flow Control Flange Description Operating Data The Check-Trol flange is a combination isolation valve, flow control valve, and companion flange for circulators. The full port ball valve allows the circulator to be removed from the system without draining the system. The internal spring check prevents gravity circulation. Free floating companion flange makes pump installation a snap. Maximum working pressure.....................