Two opposing bellows in the Model DP differential pressure switch result in maximum sensitivity, quick response to changes and good vibration resistance. Choice of brass or 316 stainless steel assures broad media compatibility. Setpoint adjustment is easy thanks to external knobs and large, clear scale reading directly in psid. 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.
Questions & Answers
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Return & Refund Policy
- Return Period: Within 30 days of delivery.
- Condition: Unused, original packaging, all accessories included.
- Non-Returnable: Gift cards, personal care, custom or digital items, sale items.
- How to Return: Email support@fastoutboard.com for RMA and return address.
- Shipping: Customer pays unless item is faulty or incorrect.
- Refund: Processed within 5–10 business days after inspection.
Warranty
- Coverage: 1-Year limited warranty for manufacturing defects.
- Excludes: Misuse, wear, or unauthorized repair.
- Claim: Email proof and photos to support@fastoutboard.com.





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