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26-2300 SERIES
Visit our website at emerson.com or contact us at (800) 447-1250
SpecificationsFor other materials or modifications, please consult TESCOM.
OPERATING PARAMETERSPressure rating per criteria of ANSI/ASME B31.3
Maximum Inlet Pressure
0-50, 0-150, 0-250 psig / 0-3.4, 0-10.3, 0-17.2 bar
Design Proof Pressure150% maximum rated
LeakageBubble-tight
Operating Temperature1
-40°F to 165°F / -40°C to 74°C
Flow CapacityCv = 0.60
Maximum Operating Torque25 in-lbs / 2.8 N•m
1. For extended temperatures from -40°F to 400°F / -40°C to 204°C, please consult TESCOM.
MEDIA CONTACT MATERIALSBody
303 Stainless Steel, 316 Stainless Steel, or Aluminum 2024-T351
DiaphragmNitrile, Buna-N
Main Valve SeatPTFE
O-RingsNitrile, Buna-N
SealsPTFE
Remaining Parts300 Series Stainless Steel
OTHERCleaning
CGA 4.1 and ASTM G93
WeightStainless Model: 2.25 lbs / 1.0 kgAluminum Model: 1.25 lbs / 0.6 kg
Teflon® is a registered trademark of E.I. du Pont de Nemours and Company.
AIR LOAD
SPRING LOAD
DOME LOAD
SPRING LOAD
AIR LOAD
TESCOM 26-2300 Series is a highly accurate, diaphragm sensed backpressure regulator. It controls pressures up to 500 psig / 34.5 bar and offers many Cvs from 0.02 up to 1.0. Air and dome loaded versions are available for remote operation or for use with the TESCOM ER5000 Electropneumatic Controller for automation.
Applications• Hydraulic or pneumatic testing
• Calibration
• Pump discharge pressure control
Features and Benefits• Crack to reseat - 2% of set pressure
• Easily adjusted, low torque handknob control
• Bubble-tight shutoff at all reseat pressures
• Four flow capacities available:Cv = 0.60 standardCv = 0.06, 0.12, 1.0 optional
• Spring, dome, and air loaded models are available
• Panel mounting is standard
• Compatible with TESCOM ER5000 Electropneumatic Controller
D26230694X012Regulators - Relief / Backpressure
467
468
26-2300 SERIES
26-2300 Series Regulator Drawings
All dimensions are reference & nominal Metric [millimeter] equivalents are in brackets
AIR LOAD
SPRING LOAD
DOME LOAD
Visit our website at emerson.com or contact us at (800) 447-1250
469
26-2300 SERIES
For more information on how to read flow curves, please refer to the Flow Curves and Calculations document (debul2007x012) in the TESCOM catalog or on www.tescom.com.
26-2300 Series Regulator Flow Charts
INLET
PRESS
URE -
psig [b
ar]
FLOW RATE - SCFM [SLPM] Nitrogen
0
25[1.7]
50[3.4]
75[5.2]
100[6.9]
125[8.6]
150[10.3]
175[12.1]
200[13.8]
225[15.5]
250[17.2]
275[19.0]
300[20.7]
5[142]
10[284]
15[426]
20[568]
25[710]
30[852]
35[994]
Model No. 26-2322-24Cv = 0.60
INLET
PRESSU
RE - ps
ig [bar
]
FLOW RATE - SCFM [SLPM] Nitrogen
0
15[1.0]
30[2.1]
45[3.1]
60[4.1]
75[5.2]
90[6.2]
105[7.2]
120[8.3]
135[9.3]
150[10.3]
165[11.4]
180[12.4]
7.5[210]
15[425]
22.5[635]
30[850]
Model No. 26-2321-24Cv = 0.60
INLE
T P
RE
SS
UR
E -
psig
[ba
r]
FLOW RATE - SCFM [SLPM] Nitrogen
0
15[1.0]
30[2.1]
45[3.1]
60[4.1]
75[5.2]
90[6.2]
105[7.2]
120[8.3]
135[9.3]
150[10.3]
165[11.4]
180[12.4]
7.5[210]
15[425]
22.5[635]
30[850]
Model No. 26-2321-24
INLE
T P
RE
SS
UR
E -
psig
[ba
r]
FLOW RATE - SCFM [SLPM] Nitrogen
0
15[1.0]
30[2.1]
45[3.1]
60[4.1]
75[5.2]
90[6.2]
105[7.2]
120[8.3]
135[9.3]
150[10.3]
165[11.4]
180[12.4]
7.5[210]
15[425]
22.5[635]
30[850]
Model No. 26-2321-24
INLE
T P
RE
SS
UR
E -
psig
[ba
r]
FLOW RATE - SCFM [SLPM] Nitrogen
0
15[1.0]
30[2.1]
45[3.1]
60[4.1]
75[5.2]
90[6.2]
105[7.2]
120[8.3]
135[9.3]
150[10.3]
165[11.4]
180[12.4]
7.5[210]
15[425]
22.5[635]
30[850]
Model No. 26-2321-24
INLE
T P
RE
SS
UR
E -
psig
[ba
r]
FLOW RATE - SCFM [SLPM] Nitrogen
0
15[1.0]
30[2.1]
45[3.1]
60[4.1]
75[5.2]
90[6.2]
105[7.2]
120[8.3]
135[9.3]
150[10.3]
165[11.4]
180[12.4]
7.5[210]
15[425]
22.5[635]
30[850]
Model No. 26-2321-24
INLE
T P
RE
SS
UR
E -
psig
[ba
r]
FLOW RATE - SCFM [SLPM] Nitrogen
0
15[1.0]
30[2.1]
45[3.1]
60[4.1]
75[5.2]
90[6.2]
105[7.2]
120[8.3]
135[9.3]
150[10.3]
165[11.4]
180[12.4]
7.5[210]
15[425]
22.5[635]
30[850]
Model No. 26-2321-24
INLE
T P
RE
SS
UR
E -
psig
[ba
r]
FLOW RATE - SCFM [SLPM] Nitrogen
0
15[1.0]
30[2.1]
45[3.1]
60[4.1]
75[5.2]
90[6.2]
105[7.2]
120[8.3]
135[9.3]
150[10.3]
165[11.4]
180[12.4]
7.5[210]
15[425]
22.5[635]
30[850]
Model No. 26-2321-24
INLE
T P
RE
SS
UR
E -
psig
[ba
r]
FLOW RATE - SCFM [SLPM] Nitrogen
0
15[1.0]
30[2.1]
45[3.1]
60[4.1]
75[5.2]
90[6.2]
105[7.2]
120[8.3]
135[9.3]
150[10.3]
165[11.4]
180[12.4]
7.5[210]
15[425]
22.5[635]
30[850]
Model No. 26-2321-24
INLE
T P
RE
SS
UR
E -
psig
[ba
r]
FLOW RATE - SCFM [SLPM] Nitrogen
0
25[1.7]
50[3.4]
75[5.2]
100[6.9]
125[8.6]
150[10.3]
175[12.1]
200[13.8]
225[15.5]
250[17.2]
275[19.0]
300[20.7]
5[142]
10[284]
15[426]
20[568]
25[710]
30[852]
35[994]
Model No. 26-2322-24
INLE
T P
RE
SS
UR
E -
psig
[ba
r]
FLOW RATE - SCFM [SLPM] Nitrogen
0
25[1.7]
50[3.4]
75[5.2]
100[6.9]
125[8.6]
150[10.3]
175[12.1]
200[13.8]
225[15.5]
250[17.2]
275[19.0]
300[20.7]
5[142]
10[284]
15[426]
20[568]
25[710]
30[852]
35[994]
Model No. 26-2322-24
INLE
T P
RE
SS
UR
E -
psig
[ba
r]
FLOW RATE - SCFM [SLPM] Nitrogen
0
25[1.7]
50[3.4]
75[5.2]
100[6.9]
125[8.6]
150[10.3]
175[12.1]
200[13.8]
225[15.5]
250[17.2]
275[19.0]
300[20.7]
5[142]
10[284]
15[426]
20[568]
25[710]
30[852]
35[994]
Model No. 26-2322-24
INLE
T P
RE
SS
UR
E -
psig
[ba
r]
FLOW RATE - SCFM [SLPM] Nitrogen
0
25[1.7]
50[3.4]
75[5.2]
100[6.9]
125[8.6]
150[10.3]
175[12.1]
200[13.8]
225[15.5]
250[17.2]
275[19.0]
300[20.7]
5[142]
10[284]
15[426]
20[568]
25[710]
30[852]
35[994]
Model No. 26-2322-24
INLE
T P
RE
SS
UR
E -
psig
[ba
r]
FLOW RATE - SCFM [SLPM] Nitrogen
0
25[1.7]
50[3.4]
75[5.2]
100[6.9]
125[8.6]
150[10.3]
175[12.1]
200[13.8]
225[15.5]
250[17.2]
275[19.0]
300[20.7]
5[142]
10[284]
15[426]
20[568]
25[710]
30[852]
35[994]
Model No. 26-2322-24
INLE
T P
RE
SS
UR
E -
psig
[ba
r]
FLOW RATE - SCFM [SLPM] Nitrogen
0
25[1.7]
50[3.4]
75[5.2]
100[6.9]
125[8.6]
150[10.3]
175[12.1]
200[13.8]
225[15.5]
250[17.2]
275[19.0]
300[20.7]
5[142]
10[284]
15[426]
20[568]
25[710]
30[852]
35[994]
Model No. 26-2322-24
INLE
T P
RE
SS
UR
E -
psig
[ba
r]
FLOW RATE - SCFM [SLPM] Nitrogen
0
25[1.7]
50[3.4]
75[5.2]
100[6.9]
125[8.6]
150[10.3]
175[12.1]
200[13.8]
225[15.5]
250[17.2]
275[19.0]
300[20.7]
5[142]
10[284]
15[426]
20[568]
25[710]
30[852]
35[994]
Model No. 26-2322-24
INLE
T P
RE
SS
UR
E -
psig
[ba
r]
FLOW RATE - SCFM [SLPM] Nitrogen
0
25[1.7]
50[3.4]
75[5.2]
100[6.9]
125[8.6]
150[10.3]
175[12.1]
200[13.8]
225[15.5]
250[17.2]
275[19.0]
300[20.7]
5[142]
10[284]
15[426]
20[568]
25[710]
30[852]
35[994]
Model No. 26-2322-24
INLE
T P
RE
SS
UR
E -
psig
[ba
r]
FLOW RATE - SCFM [SLPM] Nitrogen
0
25[1.7]
50[3.4]
75[5.2]
100[6.9]
125[8.6]
150[10.3]
175[12.1]
200[13.8]
225[15.5]
250[17.2]
275[19.0]
300[20.7]
5[142]
10[284]
15[426]
20[568]
25[710]
30[852]
35[994]
Model No. 26-2322-24
INLE
T P
RE
SS
UR
E -
psig
[ba
r]
FLOW RATE - SCFM [SLPM] Nitrogen
0
25[1.7]
50[3.4]
75[5.2]
100[6.9]
125[8.6]
150[10.3]
175[12.1]
200[13.8]
225[15.5]
250[17.2]
275[19.0]
300[20.7]
5[142]
10[284]
15[426]
20[568]
25[710]
30[852]
35[994]
Model No. 26-2322-24
Visit our website at emerson.com or contact us at (800) 447-1250
470
26-2300 SERIES
Visit our website at emerson.com or contact us at (800) 447-1250
26-2300 Series Regulator Part Number Selector
Example for selecting a part number:
26-23 2 1 - 2 4
BASICSERIES BODY MATERIAL CONTROL PRESSURE RANGE INLET AND OUTLET PORT TYPE INLET AND OUTLET PORT SIZE
26-23 2 – 303 Stainless Steel
3 – 2024-T351 Aluminum
6 – 316 Stainless Steel
0 – 0-50 psig 0-3.4 bar
1 – 0-150 psig 0-10.3 bar
2 – 0-250 psig 0-17.2 bar
1 – SAE
2 – NPTF
3 – MS33649
4 – 1/4"
6 – 3/8"
8 – 1/2"
Learn more about common options.For modifications, repair kits and accessories, contact factory.
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