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Description

Technical Details
Blackmer bypass valves have no small, easily plugged, sensing passages; and with only two moving parts, their operation is simple and reliable. They open precisely at the preset spring pressure, and they close smoothly and quietly, thanks to a patented dash-pot design.

Uses
Model BV0.75(ports are 3⁄4-inch NPT tapped)
Model BV1 (ports are 1-inch NPT tapped)
These models are commonly used for cylinder-filling system. Either valve can be used with 1.25 or
1.5-inch Blackmer pump models.

Model BV1.25 (ports are 1-1⁄4-inch NPT tapped)
Model BV1.5(ports are 1-1⁄2-inch NPT tapped)
These models are normally used for bobtail trucks and smaller bulk plant systems. Either valve can be
used with 2 or 3-inch Blackmer pump models. Both valves are available with optional springs for
use with the LGL 158 or LGLH2.

Model BV2 (ports have 2-inch NPT companion flanges, 1-1⁄4-inch and 1-1⁄2-inch NPT and WELD
bolt-on flanges are available)
The BV2 model is widely used for transports or larger bulk plant systems.
It is recommended for use with 3 and 4-inch Blackmer pump models. The BV2 is factory set
at 125 psi.

Downloads
For more information on these products, please see the download(s) below:
(link to PDF downloads)

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