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TESCOM™ 44-4000 Series Spring Diving Regulator
44-4000 dome loaded, spring biased regulator is designed for pressure tracking applications to maintain a constant differential pressure.
Venting allows for pressure tracking increases and decreases. Ideal for use in diving applications for emergency breathing air.
TESCOM™ 44-4000 Series Spring Diving Regulator


Pressure Rating
Maximum Inlet Pressure: 6000 psig / 414 bar
Outlet Pressure Ranges: 50-1500 psig / 3.4-103 bar
Body: 303 Stainless Steel, 316 Stainless Steel, Brass, Chrome-plated Brass
Main Valve Seat, Gasket: CTFE, Vespel®
Back-up Ring: Teflon®
Buna-N, Viton®, Ethylene Propylene, Kalrez®
300 Series Stainless Steel, 17-4 PH Stainless Steel, Brass
Port Size & Type
Inlet & Outlet Port Type: BSP, SAE, NPTF, MS33649
Inlet & Outlet Port Size: 1/2, 3/4
Flow Capacity
Main Valve: Cv = 0.7 (Cv = 2.0 optional)
Vent Valve: Cv = 0.35
Load Type
Dome, Air
8 lbs / 3.6 kg
Additional Information
For custom modifications or a complete system solution, please contact your local sales office.


  • High flow: Cv = 0.7 or 2.0 (optional)
  • Piston sensed
  • Adjustable bias pressure ranges are available
  • Venting (captured)
  • Compatible with TESCOM?s Air Actuators and ER5000 Electropneumatic Controllers