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TESCOM™ BB3 Series Backpressure Hydraulic Regulator
BB-3 is a high pressure, low flow, miniature backpressure regulator.
Six control pressure ranges are available up to 1200 psig / 83 bar outlet. This regulator can be used for hydraulic or pneumatic service and is small and compact, weighing approximately 4 oz / 0.11 kg in the standard Aluminum construction (316 Stainless Steel also available). Ideal for use in portable equipment or OEM equipment.
TESCOM™ BB3 Series Backpressure Hydraulic Regulator


Inlet Pressure Ranges
See Part Number Selector
Body: Nickel-plated Aluminum or 316 Stainless Steel
Seat: Tefzel®, CTFE, PTFE or Vespel®
O-Rings: Ethylene Propylene, Buna-N, Viton® or Kalrez®
Remaining Parts
300 Series Stainless Steel or Aluminum
Operating Temperature
-15°F to 140°F / -26°C to 60°C
Flow Capacity
Cv = 0.2
Load Type
Adjustable, Preset, Dome
Aluminum: 0.5 lb / 0.2 kg
Stainless Steel: 1 lb / 0.5 kg
Additional Information
For custom modifications or a complete system solution, please contact your local sales office.


  • Economical and extremely compact
  • Durable piston sensor design
  • High flow capacity
  • High temperature version up to 204°F / 96°C:
  • Close pressure differential between crack and reseat
  • Bubble-tight shutoff at all reseating pressures
  • Six control pressure ranges