Pressure Tech BP Series – Back Pressure Regulators
Pressure Tech BP Series – Back Pressure Regulators
Back Pressure (BP) Regulators are designed to maintain upstream pressure at a controlled set point by relieving excess pressure. Covering low-, medium-, and high-flow ranges, these piston- and diaphragm-sensed regulators are available in a wide variety of configurations to handle both gases and liquids, including aggressive and high-pressure services.
Why it matters
Maintaining stable upstream pressure is critical to preventing process upsets, equipment damage, or unsafe operating conditions. The BP Series provides reliable pressure relief with options to handle everything from laboratory gas systems to hydraulic fluids and ultra-high-pressure applications.

Product features
- Diaphragm-sensed and piston-sensed options across the range
- Balanced main valve designs for stable and accurate control
- Cv values tailored for low to medium flow service
- Wide material and seating options (ceramic, Hastelloy®, PEEK™) for compatibility and durability
- Configurations for both gas and liquid applications
- Dome-loaded and pilot-operated designs available
Models
- BP010: diaphragm-sensed back pressure regulator for low-flow gas and liquid applications datasheet
- BP300: diaphragm-sensed medium-flow back pressure regulator with balanced design datasheet
- BP301: piston-sensed medium-flow back pressure regulator for gas or liquid service datasheet
- BP-LF540: piston-sensed compact regulator providing economical low-flow back pressure control datasheet
- BP-LF690: piston-sensed low-flow back pressure regulator with ceramic seating for hydraulic and liquid service datasheet
- BP-LF691: piston-sensed low-flow back pressure regulator with ceramic seat and plug design for ultra-high pressures datasheet
- BP-MF400: piston-sensed medium-flow back pressure regulator in stainless steel construction datasheet
- BP-MF401: piston-sensed medium-flow back pressure regulator with Inconel®/Hastelloy® trims for aggressive service datasheet
- BP-MF690-05: piston-sensed medium-flow back pressure regulator with ceramic seat for hydraulic liquids datasheet
- BP-MF690-15: piston-sensed medium-flow back pressure regulator with ceramic seat for cavitation-resistant hydraulic service datasheet
- BP-MF691-05: piston-sensed medium-flow back pressure regulator with Hastelloy® seat for aggressive service datasheet
- BIBS100: dome-loaded, negative-biased back pressure regulator with balanced main valve and easy seat cartridge access datasheet
Need help specifying the right regulators?
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