Bray SA16 Series External Weight and Lever Accessory Product Image
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Check Valve Accessory SA16 Series External Weight and Lever

Bray SA16 Series external weight and lever, improving check valve efficiency through external counterweight, suitable for solid handling and wastewater systems

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Product Overview

Improving check valve efficiency through the SA-16 external mass system

Optimizing Check Valve Performance with SA16 Lever and Gravity

The Rite® Series SA16 check valve accessory increases opening pressure by adding an external counterweight and regulates the closing force of the disc during opening and closing cycles. This valve is suitable for applications requiring field-adjustable closing characteristics.
The SA16 model is a modified version of the standard Rite® Series single-door swing check valve, featuring a hexagonal drive connection between the disc, hinge, and shaft. The shaft extends through the structure, supported at one end by the body and at the other by a body bushing and an anti-friction ball bearing mounted on an opposing bracket. O-rings seal the shaft, seal bushing, and body to prevent leakage. The counterweight is supported by a lever mounted on the shaft via a hexagonal connection. The opening pressure of the disc can be finely adjusted by changing the position of the counterweight on the lever arm.
Applications:
Configuring the standard Rite® Series single-door wafer or flanged swing check valve with an external counterweight and lever allows users to adjust the opening pressure within a certain range and/or alter the closing characteristics of the valve. The counterweight generates the torque required to close the valve.

Technical Specifications

ItemParameter
Size RangeNPS 2” to 24” (50mm to 600mm)
Model205, 211, 212
ApplicationSolid handling, vacuum, wastewater

FAQ

How does the SA16 external weight and lever improve the closing characteristics of swing check valves?

The SA16 provides closing torque through an external lever and counterweight mounted on the valve shaft. Adjusting the position of the counterweight on the lever arm changes the force on the disc during opening and closing, allowing the closing characteristics to be adjusted within a certain range and increasing the opening pressure.

What Bray Rite® check valve models and sizes are suitable for the SA16 accessory?

The SA16 is suitable for Bray Rite® Series standard single-door swing check valves in wafer or flanged configurations. Applicable models are 205, 211, and 212, with a size range of NPS 2 to 24 inches (DN 50 to 600). Specific configuration should be confirmed based on actual model and application conditions.

How can the opening pressure of the check valve be adjusted using the SA16 lever?

The SA16 counterweight is supported by a lever and mounted on the valve shaft via a hexagonal connection. By changing the position of the counterweight on the lever arm, the disc opening pressure can be finely adjusted to either decrease or increase.

What applications are suitable for the SA16 external weight system?

The SA16 is suitable for applications requiring field adjustment of check valve opening pressure or changes to closing characteristics. Listed applications include solid handling, vacuum, and wastewater conditions. Actual selection should be confirmed based on valve model and specific application conditions.

How does the SA16 shaft structure achieve support and sealing?

The SA16 uses a through-shaft design: one end of the shaft is supported by the valve body, while the other end is supported by a body bushing and an anti-friction ball bearing mounted on the opposing bracket. O-rings seal the shaft, seal bushing, and body to prevent leakage.

Documents

Data Sheet - External Weight and Lever - SA16 SeriesProduct information · EnglishData Sheet - Peso Externo Y Palanca Serie SA16Product information · English

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