DP Double Bellows Differential Pressure Switch
Two opposing bellows combine maximum sensitivity and vibration resistance at a moderate cost
Two opposing bellows combine maximum sensitivity and vibration resistance at a moderate cost in the Series DP Differential Pressure Switches. Both set and reset points are easily adjustable through non-interactive, externally accessible controls. Visible setpoint indicators simplify changes. SPDT snap action switch, 316 stainless steel or brass bellows, flanged steel housing. Rated pressures to 600 psig.
A wide variety of switches and circuit styles enables exactly the specific type of control function needed for any system. Mercury switches are a good choice for humid areas while snap switches are better able to resist vibration. Various operations possible include single adjustment - fixed deadband, double adjustment - adjustable deadband, manual reset (increasing or decreasing pressure) and two stage with each SPST or SPDT switch independently adjustable. Standard enclosure is NEMA-1 style. Optional weatherproof construction is for outdoor use and explosion-proof enclosure meets requirements for Class I, Groups C & D; Class II, Groups E, F & G.
• Bellows switch design provides sensitivity to pressure changes but resists vibration preventing out of range switching
• External access to set and rest controls makes for easy adjustments
• Visible set point indicators simplify changes
| Wetted Materials: | Brass on ranges 61, 62, 63 or 316SS on ranges 62E, 64E 65E. |
| Temperature Limits: | -10 to 180°F (-23 to 82°C). |
| Pressure Limit: | Maximum pressure of the operating range. |
| Enclosure Rating: | General purpose, weatherproof or explosion-proof. |
| Switch Type: | Mercury or snap switch, see Ordering Page. |
| Electrical Rating: | See Ordering Page. |
| Electrical Connection: | Screw terminal. |
| Conduit Connection: | General purpose: 1/2" hole for conduit hub. Weatherproof: 1/2" conduit hub. Explosion-proof: 3/4" NPT female. |
| Process Connection: | General purpose and weatherproof: 1/8" NPT female. Explosion-proof: 1/4" NPT male. |
| Mounting Orientation: | Vertical. |
| Set Point Adjustment: | Thumbscrew. |
| Weight: | General purpose: 5 lb (2.3 kg). Weatherproof: 7 lb (3 kg). Explosion-proof: 25 lb (11 kg). |
| Agency Approvals: | cULus. |
• Accurate switch triggers in high pressure applications
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