PRODUCT SPECIFICATIONS > INSTRUMENTATION


Clark Solutions
120 Series, Pressure, Vacuum, Diff. Pressure & Temp. Switches
Explosion Proof, Adjustable Ranges 30" Vac to 6000 PSI,
-180°F to 650°F

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OPTIONS FOR TEMPERATURE MODELS
UNION CONNECTORS
  Option Replacement Number Description
Brass W027 SD6213-27 1/2” NPT w/ 3/4” bushing
W045 SD6213-45 3/4” NPT
W051 SD6213-51 1/2” NPT
304 Stainless Steel W028 SD6213-28 1/2” NPT w/ 3/4” bushing
W046 SD6213-46 3/4” NPT
W050 SD6213-50 1/2” NPT
THERMOWELLS
For all bulb & capillary switches, all 1/2" NPT Internal
Brass W075 SD6225-75 3/4” NPT bushing adapter, 4” BT
W191 SD6225-191 1/2” NPT, 4” BT
W118 SD6225-118 3/4” NPT bushing adapter, 7” BT
W192 S D6225-192 1/2” NPT, 7” BT
316 Stainless Steel W076 S D6225-76 3/4” NPT, 4.5” BT
W193 SD6225-193 1/2” NPT, 4.5” BT
W119 SD6225-119 3/4” NPT, 7.5” BT
W177 SD6225-177 1/2” NPT, 7.5” BT
For all immersion stem switches W139 SD6225-139 3/4” NPT X 1 23/32” BT, BRASS
W140 SD6225-140 3/4” NPT X 1 23/32” BT, 316 SS
W000 IMMERSION STEM AND THERMOWELLS
Note: Option W000 is a special Immersion Stem construction that has no external thread. This option fits inside a special thermowell and is secured with a set-screw; available 100, 105 (except Model 119), 117, 120 and 400 Series.
Option Description
W000 Immersion stem only, BRASS
W097 Immersion stem and thermowell. Includes W000 stem and 1/2” NPT x 1 23/32" BT BRASS thermowell
W099 Immersion stem and thermowell. Includes W000 stem and 1/2” NPT x 1 23/32" BT 316 SS thermowell
OPTIONAL LENGTHS
Optional immersion stem lengths to 15" available in brass, with or without 316 SS thermowell. Consult Clark for additional information.
Optional capillary length to *50' available in copper or 304 SS. Armor or Teflon® capillary protection available to lengths less than or equal to capillary length. Consult Clark for additional information.
*Consult Clark regarding repeatability and ambient effects on capillary lengths over 30'.
DIMENSIONS (INCHES)
120 Series, Explosion Proof
Internal set point adjustment, dual contacts
Models J120, J120K, C120, F120
Dimension A
Range Code Inches NPT
Pressure
126-124 7.30 1/4
S126B-S164B 7.70 1/2
171-174 8.53 1/2
183-186, 483-486 8.53 1/2
188-189,488-489 7.53 1/2
190-194, 490-494 7.53 1/2
270-376, 680 8.20 1/4
450, 452 8.95 1/4
451, 453, 454 8.20 1/4
520-525 9.40 1/2
530-535 9.00 1/2
550, 552 8.95 1/4
551, 553-555 8.40 1/4
560-564 7.63 2" Sanitary
565-567 7.63 1-1/2" Sanitary
612, 616 7.90 1/4
701-705 7.53 1/4
Differential Pressure
36-39, 367 7.63 1/4
147-157 7.63 1/4
S147B-S157B 7.63 1/2
455-559 8.55 1/4
540-543 9.60 1/8
544-548 9.70 1/8
Temperature
120, 121 9.07 Immersion Stem
1BS-8BS 9.03 Bulb & Capillary
First diagram
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