PRODUCT SPECIFICATIONS > INSTRUMENTATION
Clark Solutions
400 Series, Pressure, Vacuum, Diff. Pressure & Temp. Switches
1, 2 & 3 Switch output, Adjustable Ranges 30” Vac to 6000 PSI, -180 to 650°F

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Dimension A
Range Code Inches NPT
126-124 5.81 1/4
S126B-S164B 6.19 1/2
270-376 5.50 1/4
440-443, 449 451, 453, 454 4.28 1/4
448, 450, 452 5.03 1/4
520-525 8.25 1/2
530-535 8.12 1/2
551, 553-555 4.56 1/4
550, 552 5.03 1/4
570-572 4.56 1/4
610-614 6.44 1/4
Differential Pressure
147-157 6.13 1/4
S147B-S157B 6.13 1/2
455-559 7.00 1/4
540-543 7.97 1/8
544-547 8.03 1/8
Temperature
120, 121 10.88 Immersion Stem
1BS-8BS 7.00 Bulb & Capillary
DIMENSIONS (INCHES)
Set Point Adjustment via Reference Dial
Types H400, H402, H403, H400K, H402K, B400, B402, B403, E400,
      E402, E403
Internal Set Point Adjustment
Types J400, J402, J403, J400K, J402K, C400, C402, C403, F400,
      F402, F403
400 Series, Pressure, Vacuum, Diff. Pressure & Temp. Switches Diag 1
Sensors-Pressure
Diagram 3
Diaagram 4
Diagram 5
Diagram 6
Sensors-Temp Diag 7
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