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HIGH FLOW - HIGH PURITY REGULATOR
Series 3830
 
DESCRIPTION
The 3830 series regulators are designed for high flow applications involving high purity or corrosive gases. The series features a large main valve with a Cv of 1.0. In the high pressure version the main valve is balanced to minimize the effect of inlet pressure fluctuations on outlet pressure. The low pressure inlet line regulator version uses an unbalanced main valve for reliable shutoff.
 
FEATURES
• Capable of high flows with only a small pressure drop.
• High purity metal diaphragm construction.
• All parts ultrasonically cleaned prior to assembly.
• Designed to pass an inboard leak-rate test of 2x10-8 cc/sec.
 
APPLICATIONS
The 3830 series regulators are ideal for high flow systems of high purity or corrosive gas whether used as a high pressure regulator or a line regulator with inlet pressure less than 500 psig.
 
SPECIFICATIONS
  3830 3830L
Max. Inlet Pressure: 3000 psig 500 psig
Operating Temp. Range: -40°F to 165° -40° to 165°
Flow Coefficient (Cv): 1.0 1.0
Inlet and Outlet: 1/2" NPT 1/2" NPT
 
 
3831L
 
+ A 100 micron filter is recommended for installation on the regulator inlet. P/N 7510-100-P8MM or 7520-100-P8MM
( click here to view ).
 
3831
 
MATERIALS OF CONSTRUCTION
  3831 3831L 3832 3832L
Body: brass brass 316 SS 316 SS
Bonnet: nickel plated brass nickel plated brass
Diaphragm: 316 SS 316 SS 316 SS 316 SS
Seat: CTFE Teflon CTFE Teflon
Seal: Teflon Teflon Teflon Teflon
Main valve: 316 SS 316 SS 316 SS 316 SS
Gauges: brass brass SS SS
 
HOW TO ORDER***+
Model
Number
Del. Press. Range
psig
Del. Press. Gauge
psig
Inlet Press. Gauge
psig

3831-25 0-25 0-60 0-4000
3831-50 0-50 0-100 0-4000
3831-100 0-100 0-200 0-4000
3831-150 0-150 0-200 0-4000
3831-200 0-200 0-400 0-4000

3831L-25 0-25 0-60 none
3831L-50 0-50 0-100 none
3831L-100 0-100 0-200 none
3831L-150 0-150 0-200 none
3831L-200 0-200 0-400 none

3832-25 0-25 0-60 0-3000
3832-50 0-50 0-100 0-3000
3832-100 0-100 0-200 0-3000
3832-150 0-150 0-200 0-3000
3832-200 0-200 0-400 0-3000

3832L-25 0-25 0-60 none
3832L-50 0-50 0-100 none
3832L-100 0-100 0-200 none
3832L-150 0-150 0-200 none
3832L-200 0-200 0-400 none

*** For panel mounting bonnet add “PM” to base number (i.e., 3831LPM-50).