DA Series absolute pressure reducing regulator is designed with an elastomeric diaphragm and provides accuracy to +/- 0.1 psig / 0.007 bar. This regulator may be used to reduce pressure from a supply source up to 4500 psig / 310 bar into a vacuum environment. Ideal for use in instrumentation testing and calibration equipment.

Pressure Rating

Maximum Inlet Pressure: 4500 psig / 310 bar
Outlet Pressure Ranges: 50 mm Hg absolute -
15 psig / 1.0 bar
50 psig / 3.4 bar
100 psig / 6.9 bar
350 psig / 24.1 bar

Body Material

Brass or Nickel-plated Aluminum

Diaphragm Material

Buna-N, Ethylene Propylene, or Viton®

Seat Material

Teflon® (Inlet 500 psig / 34.5 bar maximum), CTFE, or Vespel®

Friction Sleeve Material

Inner: Teflon®
Outer: 316 Stainless Steel

40 Micron Filter Material

316 Stainless Steel

Remaining Parts

300 Series Stainless Steel

Port Size & Type

1/4 SAE, 1/4 NPTF, 1/4 MS33649

Flow Capacity

Cv = 0.06

Weight (without gauges)

Brass: 2.4 lbs / 1.1 kg
Aluminum: 1 lb / 0.5 kg