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Clark Solutions
120 Series, Pressure, Vacuum, Diff. Pressure & Temp. Switches
Explosion Proof, Adjustable Ranges 30" Vac to 6000 PSI,
-180°F to 650°F
(Page 7 of 9)
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OPTIONS FOR TEMPERATURE MODELS
| UNION CONNECTORS |
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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 |
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| 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 |
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| 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. |
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| 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 |
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| 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'. |
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DIMENSIONS (INCHES)
120 Series, Explosion Proof
Internal set point adjustment, dual contacts
Models J120, J120K, C120, F120 |
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| 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 |
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