{"product_id":"speedaire-31tx33-pressure-switch","title":"SPEEDAIRE 31TX33 Pressure Switch","description":"\u003cdiv\u003e\u003cp\u003eSPEEDAIRE 31TX33 is a pressure switch with a manual ON-OFF lever and a 105–135 psi activation range. The OEM part carries cross-reference numbers 5Z185 and 5Z185B, and is listed as a new 31TX33 unit. Designed to sense system pressure and toggle an electrical circuit when the set pressure is reached, this switch provides a straightforward means to protect compressors and pneumatic lines from overpressure. The 105–135 psi range defines the operating window at which the switch engages, supporting simple high-pressure control in equipment that runs at moderate to high PSI in air lines. While primarily used in air systems, these cross-referenced switches appear in listings for Speedaire and SPEEDAIRE components, reflecting broad compatibility with standard industrial pneumatic installations. Being an OEM replacement part, it is intended to match original specifications for reliable performance in established control schemes, without requiring redesign of safety or control circuits. The model number 31TX33 distinguishes this unit from other pressure-switch configurations, ensuring correct pairing with matching actuators and electrical connections in compatible equipment.\u003c\/p\u003e\u003c\/div\u003e","brand":"SPEEDAIRE","offers":[{"title":"New","offer_id":51712690979118,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_d4d41609-cc36-449a-b893-58654e780481.jpg?v=1770361480","url":"https:\/\/plgautomation.com\/products\/speedaire-31tx33-pressure-switch","provider":"PLG Automation ","version":"1.0","type":"link"}