AquaMatic V42B-00SX-70869 – 3/4 Inch Special Valve – Special Solenoid – BUNA/BUNA/Hycar

The AqMatic AquaMatic V42B-00SX-70869 Special Diaphragm Valve is not a standard 3/4 inch configuration. It is a custom (00SX) V42B valve, meaning it is built from a specific drawing and defined by its internal configuration, connection points, and control setup rather than a standard normally open or normally closed format.

This valve is built on the V42 series diaphragm valve platform, which uses a diaphragm to isolate the control chamber from the process flow. This design allows the valve to regulate flow through pilot pressure while maintaining higher flow rates and lower pressure loss compared to more restrictive valve geometries.

What defines this specific model is its internal configuration. It uses a Buna-N diaphragm, Buna-N seals, and Hycar discs, creating a material combination that differs from both standard Buna-only valves and FKM/EP variants. In addition, this unit includes boss #2 and #4 drilled and tapped in brass and stainless steel, providing pre-configured connection points for pilot lines, solenoids, or auxiliary control hardware.

The valve is also equipped with a special solenoid configuration, which indicates that the actuation method is not a standard catalog setup. This makes the valve suitable for systems where control logic, timing, or connection layout must match a predefined design rather than a generic replacement part.

Because of these combined factors, this valve is typically selected as a configured component within a system, not as a general-purpose 3/4 inch valve. In automated setups, it is commonly used alongside 48 series stagers and coordinated through stager controllers, but the primary selection criteria remain the Hycar disc material and the drilled-and-tapped boss configuration, which directly impact how the valve integrates into the system.