Back To Top
TESCOM™ 64-3400 Series Dual Stage Regulator
64-3400 Series dual-stage, ultra high purity pressure reducing regulator offers a tied diaphragm design and 10 Ra microinch / 0.
25 micrometer surface finish with optional Hastelloy® trim. Inlet pressure is 3500 psig / 241 bar with outlet pressures up to 150 psig / 10.3 bar. Ideal for use in gas cabinets, semiconductor manufacturing and research labs.
TESCOM™ 64-3400 Series Dual Stage Regulator


Pressure Rating
Maximum Inlet Pressure: 3500 psig / 241 bar
Outlet Pressure Ranges: 30, 60, 100, 150 psig / 2.1, 4.1, 6.9, 10.3 bar
Body Material
316L Stainless Steel Electropolish or 316L VAR Stainless Steel Electropolish
316L Stainless Steel
Valve Seat
PCTFE or Teflon® PFA
Valve Spring
316 Stainless Steel
Valve Stem & Remaining Parts
316 Stainless Steel (Hastelloy® optional)
Operating Temperature
Teflon® PFA Seat: -40°F to 160°F / -40°C to 71°C
PCTFE Seat: -40°F to 140°F / -40°C to 60°C
Port Size & Type
1/4 H.P.I.C.
1/4, 1/2
Male Swivel, Fixed Male, Female Swivel
1/4 Tube Stubs
Flow Capacity
See Part Number Selector
3.0 lbs / 1.4 kg
Additional Information
For custom modifications or a complete system solution, please contact your local sales office.


  • 10 Ra microinch / 0.25 micrometer internal surfaces
  • Full internal Electropolish is available
  • Metal-to-metal body to diaphragm seal for high leak integrity
  • Choice of free poppet or tied diaphragm


Interesting in attending a training class?

Visit Course Listing!