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TESCOM™ 26-2900 Series Backpressure Regulator Upstream
26-2900 Series is a dome loaded, negative bias, backpressure tracking regulator with a balanced main valve.
This regulator controls upstream pressures up to 1000 psig / 69.0 bar with spring bias setting. Ideal for use in offshore diving applications, dumping exhaled breath from pressure chamber (BIBS) and diving bell.
TESCOM™ 26-2900 Series Backpressure Regulator Upstream


Pressure Rating
Maximum Control Pressure: 1000 psig / 69.0 bar
Maximum Reference Ranges: 1000 psig / 69.0 bar
Bias Pressure Ranges: 0, 0-15, 0-30, 0-45 psig / 0, 0-1.0, 0-2.1, 0-3.1 bar
Body: 303 Stainless Steel or Brass
Seat: CTFE
Diaphragm: Unreinforced: Viton-A®
O-Rings: Viton-A®
Back-up Rings: Teflon®
Remaining Parts
300 Series Stainless Steel & Brass
Operating Temperature
0°F to 165°F / -18°C to 74°C
Port Size & Type
1/2 SAE, NPTF, MS33649, BSP
Flow Capacity
Cv = 2.0
Load Type
10 lbs / 4.5 kg
Additional Information
For custom modifications or a complete system solution, please contact your local sales office.


  • Balanced stem design eliminates the need to adjust bias over a wide range of operating pressures
  • High flow capacity: Cv = 2.0
  • Diaphragm sensed
  • Low accumulation
  • Mounts in any position
  • Choice of Stainless Steel or Brass construction


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