Flow Control Flange Set

Bell & Gossett Check-Trol 3/4" NPT Isolation Flow Control Flange Set
(2 flanges)

Overview
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 valve prevents gravity circulation. Free floating companion flange makes pump installation a snap.

The part numbers and shipping weights are for one set which includes one Check-Trol flange and one isolation flange, cap screws and nuts. Gaskets are sold separately.

Three features in one valve Check-Trol is the solution for circulator installations on hydronic heating systems. 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 or booster pump without draining the system.
• Companion Flange - Free-floating companion flanges allow easy alignment for optimal handle positioning.

B&G Check-Trol, is available in sizes: 3/4”, 1”, and 1-1/4” NPT and Sweat, Patent Pending.

Bell & Gossett® has introduced the B&G Check-Trol™, a new isolation flow control flange that combines the features of a flow control valve, isolation valve, and companion flange in a single valve. This three-in-one innovation offers multiple benefits, such as delivering minimal pressure drop, an advantage when one considers the losses that can be experienced when a check valve is installed internal to the circulator.

Additional benefits of the new B & G product include a full port ball valve that allows the circulator to be removed without draining the system; an internal spring check prevents gravity circulation and flow in the wrong direction; and a free-floating companion flange provides for easy alignment and makes pump installation a snap.

Available in 3/4”, 1” and 1-1/4” NPT and Sweat models, the B&G Check-Trol (patent pending) is designed to be used with all major brands of circulators, including the Bell & Gossett NRF, NBF, and SSF wet rotors, Series PL, Series 100, HV, PR and LR circulators.

Bell & Gossett, is a unit of ITT Industries, B & G is a leading manufacturer of circulator pumps, booster pump, centrifugal pumps, hydronic heating specialties, heat exchangers, condensate handling equipment, and packaged systems for variable and constant speed pumping, heat transfer and pressure boosting.

Specifications

Operating Data
• Maximum working pressure - 150 psi (10 bar)
• Maximum operating pressure - 200° F (93C)

Materials of Construction
• Valve Body - Brass
• Flange - Chrome Plated Steel
• Ball - Chrome plated Brass
• Packing - Teflon*
• Stem - Brass
• Spring Check - Nitrile, Acetal, Stainless Steel
(*Teflon is a registered trademark of E.I.du Pont de Nemours and Company)

Dimensions and Weights

				Dimensions (inches)
Model No.	Size	Model	For use in (model)	A	B*	B1**	C	D	Weight (Lbs.)
101236	3/4" SWT x Flange	CTFS - 3/4	NRF/ NBF/ SSF Wet Rotors Series PL-30, PL-36, PL-55, Series 100, PR, & LR	3/4" SWT	3-5/16"	2-19/32"	2 1/8"	4"	3.6
101237	1" SWT x Flange	CTFS - 1		1" SWT	4-1/4"	3-11/64"	2-5/16"	4"	4.3
101238	1-1/4" SWT x Flange	CTFS - 1-1/4		1-1/4" SWT	5-3/8"	3-13/16"	2-5/8"	5"	6

Dimensions and weights are approximate and subject to change. Contact the factory for certified dimensions. Check-Trol flange is sold with an isolation flange as a pair.

B* Dimension is an overall length of the Check-Trol flange.
B1** Dimension is an overall length of isolation flange.

Links

• Check-Trol Sales Bulletin
• Check-Trol Submittals
• More Check-Trol Information

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