Techflow Pipe Series Cryogenic Vacuum Jacketed Valves

Techflow 840, 1315, 2375 and 4500 Series Vacuum Jacketed Valves

Technifab offers a line of vacuum jacketed valves that gives you top cryogenic valve performance and also work best with vacuum jacketed pipe. These low heat leak vacuum insulated valves don’t add unwanted heat to your cryogenic liquid, saving you money and loss of cryogens.

Benefits

  • Vacuum-jacketed, eliminating icing and condensation seen with non-vacuum jacketed cryogenic valves.
  • Self-aligning, PCTFE seat designed for flexibility and solid closure at cryogenic temperatures.
  • Wear parts are easily replaceable reducing down-time.
  • Redundant cryogenic bonnet seal provides an extra level of safety.

We also offer Techflow Tube Series Vacuum Jacketed Valves for 1/2 inch ODT tubing.

Vacuum jacketed cryogenic valves are used with a variety of different cryogenic liquids for control and transfer in:

  • Bulk Tank Shut-offs.
  • System Branches for Pipe and Equipment Isolation.
  • Point-of-Use Valves.
  • System Expansion / Re-Routing Connections.

Our valves are used with liquid nitrogen, liquid oxygen, liquid argon, and liquid helium systems.

Pipe Series Valve Specifications

Model Identification
840 = 1/2″ NPS Inner Pipe
1315 = 1″ NPS Inner Pipe
2375 = 2″ NPS Inner Pipe
4500 = 4″ NPS Inner Pipe
G = Globe Valve
Y = Y-Pattern Valve
M = Manually Operated
P = Pneumatically Operated

Example: 840-GM is a Manual Globe Valve with 1/2″ Nominal Pipe Size (NPS) inner pipe

Techflow Cryogenic Vacuum Jacketed Pipe Series Valve Specifications
Model Inner Pipe Size Pipe Inner Diameter CV(KV) Heat Leak in BTU/Hr (Watts)
840-GM 1/2″ NPS 0.710 in (18.0 mm) 4.66 (4.02) 3.8 (1.1)¹
840-GP 1/2″ NPS 0.710 in (18.0 mm) 4.66 (4.02) 3.8 (1.1)¹
840-YM 1/2″ NPS 0.710 in (18.0 mm) 4.96 (4.28) 3.8 (1.1)¹
840-YP 1/2″ NPS 0.710 in (18.0 mm) 4.96 (4.28) 3.8 (1.1)¹
1315-GM 1″ NPS 1.185 in (30.1 mm) 17.2 (14.8) 4.3 (1.3)¹
1315-GP 1″ NPS 1.185 in (30.1 mm) 17.2 (14.8) 4.3 (1.3)¹
1315-YM 1″ NPS 1.185 in (30.1 mm) 15.6 (5.17) 4.3 (1.3)¹
1315-YP 1″ NPS 1.185 in (30.1 mm) 15.6 (5.17) 4.3 (1.3)¹
2375-GM 2″ NPS 2.209 in (57.0 mm) 20 (17.2) 8.8 (2.6)¹
2375-GP 2″ NPS 2.209 in (57.0 mm) 20 (17.2) 8.8 (2.6)¹
2375-YM 2″ NPS 2.209 in (57.0 mm) N/A 8.8 (2.6)¹
2375-YP 2″ NPS 2.209 in (57.0 mm) N/A 8.8 (2.6)¹
4500-GM 4″ NPS 4.125 in (104.8 mm) 44(38) 15.34 (4.5)¹
¹At 400˚F (222˚C) ∆T using Liquid Nitrogen.

 

Specifications common to all Tube Series valves:
Operating Temperature -450° to 150°F (4° to 340°K)
Operating Pressure: Right Angle Valve
Bubble Tight 150 psig (10.3 bar)
300 psig (20.6 bar)
Class 300 (ASME B16.34)
For ASME Certified Valves please contact us for specifications.

 

Features:

  • Shallow plug style valve that works best for on/off control.
  • Made by Technifab to match perfectly with our Techniguard Vacuum Jacketed Pipe.
  • Port on bonnet for SRV or easy purge if needed.
  • Actuated valve options available for automatic operation.
  • ASME certification of valves available upon request.
  • One year warranty if sold separately.