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The BD32 is a 4 inch port size back pressure regulator capable of very high flow rates with liquids, gasses, or mixed gas & liquid phases. The multiple parallel orifice design allows the BD to maintain high accuracy even as the flow rate varies from very low frows to very high flow rates.
BD Series Back Pressure Regulators are a family of back pressure regulators typically used in industrial applications with high flow rates. Competitive valves are often cast from materials (such as carbon steel and cast iron) that do not handle aggressive chemicals and corrode after short periods of use. The BD Series is available in all SS316L and PTFE construction for the most demanding chemical applications.
The BD Series are extremely durable and built to last. Since the only moving part is the diaphragm, it is the only part in the valve which can fail. It is replaced easily in a matter of minutes for a very nominal expense, typically less than 10% of the cost of a new valve. Competitive valves have repair kits which cost up to half the price of a brand new valve and take hours to rebuild.
The BD Series are available in pipe sizes from 1.5″ to 4″ and typically in pressure ranges 150 psig and below (high pressure models are also available). They are true 1:1 dome loaded back pressure valves, meaning that 1 unit pilot pressure yields 1 unit upstream pressure. There are many advantages to using our dome loaded design, such as: extremely wide range of Cv with a single unit, frictionless operation with no cracking pressure, and no hysteresis as found in traditional spring loaded regulators.
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