74-3800 Series ultra high purity, tied diaphragm pressure reducing regulator offers high flow and internally threadless and low internal volume design with Cv = 0.5. The 74-3800 Series is available with 10 Ra surface finish. Inlet pressures are 600, 1000, or 3500 psig / 41.3, 69.0, 241 bar with outlet pressures up to 150 psig / 10.3 bar. Ideal for use in 1/2" point-of-use pressure regulator, gas cabinets, high flow purging systems and semiconductor manufacturing.

Pressure Rating

Maximum Inlet Pressure: 600, 1000, 3500 psig / 41.4, 69.0, 241 bar
Outlet Pressure Ranges: 30, 60, 100, 150 psig / 2.1, 4.1, 6.9, 10.3 bar

Material

Body: 316L VAR Stainless Steel with Electropolish
Diaphragm: 316 Stainless Steel or Hastelloy®
Remaining Parts: 316 Stainless Steel

Valve Seat

  Vespel® (3500 psig / 241 bar Inlet)
  PCTFE (600, 100 psig / 41.4, 6.9 bar Inlet)
Teflon® PFA (600 psig / 41.4 bar Inlet)

Operating Temperature

Vespel®: -40°F to 350°F / -40°C to 177°C
PCTFE: -40°F to 140°F / -40°C to 60°C
Teflon® PFA: -40°F to 160°F / -40°C to 71°C

Port Size & Type

3/8 Compression
1/2 Compression
1/2 Male Swivel
1/2 Female Swivel
3/8 Tube Stubs
1/2 Tube Stubs

Flow Capacity

Cv = 0.5

Weight (without gauges)

3.2 lbs / 1.5 kg

Additional Information

For custom modifications or a complete system solution, please contact your local sales office.