• Use with steam, air, noncombustible gases, or fluids non-corrosive to pressure sensing element.
• Models have snap-acting switching to open or close a circuit on pressure rise.
• Have adjustable differentials.
• Adjustments are made by screws on top of case.
• Mount using 1/4 inch -18 NPT internal pipe threads or surface mount through base of case.
• Ground screw terminal.MAIN SCALE 1 TO 8 PSI. ADJ. DIFF: .75 TO 2 PSI. LESS SIPHON.| Sensor Element | Stainless Steel diaphragm |
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| Comments | Range Stop installed at 8 PSI |
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| Overview | Provide operating control with automatic limit protection for pressure systems up to 300 psi (2068 kPa). |
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| Pipe Connections, Main or High Pressure | 1/4 in. NPT internal thread |
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| Maximum Sustained Operating Pressure (psi) | 25 psi |
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| Maximum Sustained Operating Pressure (kPa) | 170 kPa |
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| Application | Provide control of steam, air, non-combustible gases or non-corrosive fluids |
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| Pressure Differential (psi) | 0.75 to 2 psi |
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| Pressure Differential (kPa) | 5 to 14 kPa |
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| Operating Range (psi) | 1 to 8 psi |
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| Operating Range (kPa) | 7 to 55 kPa |
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| Mounting | 1/4 inch- 18NPT connection on diaphragm assembly; or surface mounts using holes in back of case. |
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| Switch Operation | Auto recycle |
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| Switching Action | Snap switch breaks R-B (closes R-W) on pressure rise. Make-on devices omit terminal B. |
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| Dimensions (in.) | 4 27/32 in. high x 4 1/2 in. wide x 3 1/4 in. deep |
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| Dimensions (mm) | 126 mm high x 114 mm wide x 70 mm deep |
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| Switch Contact Ratings (120 Vac) | 8.0 AFL, 48.0 ALR, 10.0 A resistive |
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| Switch Contact Ratings (240 Vac) | 5.1 AFL, 30.6 ALR, 5.0 A resistive |
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| Differential Type | Subtractive |
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| Temperature Range (F) | -35 F to +150 F |
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| Temperature Range (C) | -37 C to +66 C |
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| Electrical Connections | Screw terminals |
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| Approvals, Underwriters Laboratories Inc | Listed: File No. MP466, Guide No. MBPR |
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| Approvals, Canadian Standards Association | Certified: File No. LR95329 |
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| Approvals, Swiss RE (formerly IRI) | Acceptable |
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Product Family
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