CHECK VALVES

CVTD System Balancing Valves

The CVTD System Balancing Valve from Metraflex is three valves in one:

• Calibrated balance valve
• A shut-off valve
• A center-guided non-slam check valve

Replacing three valves with just one Metraflex CVTD System Balancing Valve can dramatically reduce your up-front material and labor costs.

Features/Benefits

1. The CVTD System Balancing Valve’s streamlined design results in low pressure drops, making it extremely energy efficient.
2. Three valves in one reduces cost and minimizes installation time
3. Greater range of control so you get precise flow control versus on-off throttling valves
4. Positive shut-off without valve chatter
5. Calibrated nameplate allows return of valve to balanced position after shut-off
6. Durable, bronze seat, stainless steel stem and bronze disc construction ensures long life

Valve Selection
"Line sizing" the CVTD (6-inch pipe therefore use a 6-inch valve) is usually not the best method to select the valve. To properly select a CVTD try to match the systems designed flow in GPM with the valve that is at least 50% open and creates a minimum 3-psi pressure drop.

The 50% opening is recommended to prevent erosion of the seat when a valve is operated close to closure and the 3-psi pressure drop assures that valve is operating within a range that is most accurate.

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