LowFlow JR Series High Pressure Regulator

LowFlow JR Series high pressure regulators have the ability to handle very high pressures and very low flows. These valves are typically used in research and sampling systems for corrosive and specialty gases. Typical applications include gas chromatography and flame ionization detectors, as well as other industrial controls.

Key Specifications

  • For general, corrosive, and specialty gas services and non-cavitating liquids
  • Top entry design makes in-line cleaning and maintenance easy
  • Barstock construction guarantees material integrity and surface finish
  • High flow rate and high rangeability reduces need for reduced trim sizes
  • Fine thread pitch for precision setpoint adjustments
  • Proprietary Jorlon diaphragm material provides exceptionally long life
  • Soft seat material (Teflon or PEEK) for ANSI Class VI shutoff

Specifications, Manuals, and Supporting Literature

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Model Selection Guide

Use this table to find the right model for your application.  Don't see the option you need? Call a Lesman sales specialist at 800-953-7626

Description Catalog Number
Stainless Steel Pressure-Reducing Valve, Jorlon Diaphram, Standard Actuator
Valve Size Connection Dim. A
1/4"
3/8"
1/2"
NPTF Ends
NPTF Ends
NPTF Ends
2"
2"
2.75"
JR-025-6L/A
JR-025-6L/B
JR-025-6L/C
Port Type
(See Specifications for
Port Type diagram)
A (Inlet and Outlet)
B (Inlet, Outlet, and Outlet Gage)
C (Inlet, Outlet, and Outlet Gage)
D (Inlet, Outlet, and Inlet Gage)
E (Inlet, Outlet, Inlet Gage, Outlet Gage)
A
B
C
D
E
Trim and Seat Material Teflon Seat, 0.012 Cv
Teflon Seat, 0.08 Cv
Teflon Seat, 0.2 Cv
1ST1
2ST2
3ST3
Range Spring/Outlet Pressure 5-50 PSI
25-100 PSI
50-150 PSI
75-250 PSI
100-475 PSI
200-750 PSI
E1JLSK
E2JLSK
E3JLSK
E4LSK
E5JLSK
E6JLSK
Inlet Gauge
(For Port Types D and E)
None
0-30 PSIG
0-60 PSIG/Bar (Dual)
0-100 PSIG/Bar (Dual)
0-160 PSIG/Bar (Dual)
0-200 PSIG/Bar (Dual)
0-300 PSIG/Bar (Dual)
0-400 PSIG/Bar (Dual)
0-600 PSIG/Bar (Dual)
0-1000 PSIG/Bar (Dual)
0-2000 PSIG/Bar (Dual)
0-3000 PSIG/Bar (Dual)
0-5000 PSIG/Bar (Dual)
NN
AA
BB
CC
DD
EE
FF
GG
HH
JJ
KK
LL
MM
Outlet Gauge
(For Port Types B, C, and E)
None
0-30 PSIG
0-60 PSIG/Bar (Dual)
0-100 PSIG/Bar (Dual)
0-160 PSIG/Bar (Dual)
0-200 PSIG/Bar (Dual)
0-300 PSIG/Bar (Dual)
0-400 PSIG/Bar (Dual)
0-600 PSIG/Bar (Dual)
0-1000 PSIG/Bar (Dual)
N00
A00
B00
C00
D00
E00
F00
G00
H00
J00

Videos

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