{"product_id":"qpm11-air-pressure-switch-1-4-inch-nc-no-pneumatic-compressor-controller","title":"QPM11 Air Pressure Switch 1\/4\" NC\/NO Pneumatic Compressor Control","description":"\n\u003ch2\u003eQPM11 NC\/NO Air Pressure Switch – Adjustable Pneumatic Compressor Control\u003c\/h2\u003e\n\u003cp\u003eTake precise control of your pneumatic and hydraulic systems with the \u003cstrong\u003eQPM11 Air Pressure Switch\u003c\/strong\u003e. Built from durable metal with an IP54-rated enclosure, this 1\/4-inch diaphragm pressure switch is engineered for dependable automated pressure monitoring across industrial and commercial applications. Available in both \u003cstrong\u003eNormally Closed (NC)\u003c\/strong\u003e and \u003cstrong\u003eNormally Open (NO)\u003c\/strong\u003e configurations, it adapts seamlessly to CNC machines, automated production lines, compressors, and air supply systems.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Pressure Settings:\u003c\/strong\u003e Simply rotate the hexagonal screw to dial in precise pressure thresholds — no special tools required for quick, accurate calibration.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNC \u0026amp; NO Configurations:\u003c\/strong\u003e Choose between Normally Open or Normally Closed operation to match your existing system architecture and wiring setup.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIP54 Protection Rating:\u003c\/strong\u003e Dust-resistant and splash-proof housing ensures consistent, long-lasting performance in demanding workshop and industrial environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Voltage Compatibility:\u003c\/strong\u003e Supports AC 110V, AC 220V, DC 12V, and DC 24V — suitable for a broad range of equipment and control panels.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUser-Friendly Design:\u003c\/strong\u003e Clear labeling and an intuitive adjustment mechanism minimize installation time and simplify integration into existing pneumatic control circuits.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Industrial Use:\u003c\/strong\u003e Ideal for CNC machines, automated production lines, air compressors, hydraulic systems, and general air supply control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003eQPM11-NC \/ QPM11-NO\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003eMetal\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e85 mm (1\/4\", 12.7 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003eBlack \/ Silver\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003ePressure Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e0.1–1 MPa \/ 0.01–0.1 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e-5°C to 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eWorking Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003eAdjustable Pressure\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eInstallation Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003eExternal Thread (PT1\/4)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eWorking Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003eAC 110V \/ AC 220V \/ DC 12V \/ DC 24V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMax Working Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e500 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMaximum Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e100 VA \/ 24 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eInsulation Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e1500 V \/ 50 V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMax Pulse Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e200 cycles\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eProtection Level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003eIP54\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × QPM11 Air Pressure Switch\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-channel-relay-module-dc-3-3v-24v-optocoupler-arduino\"\u003e1-Channel Relay Module DC 3.3V–24V Optocoupler for Arduino\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-channel-scr-solid-state-relay-switch-module-dc3-24v-40a-optocoupler\"\u003e1-Channel SCR Solid State Relay Module DC3-24V 40A Optocoupler\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-inch-threaded-brass-ball-valve-water-gas-oil-flow-control\"\u003e1-Inch Threaded Brass Ball Valve – Water, Gas \u0026amp; Oil Flow Control\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor general guidance on pneumatic system safety and best practices, refer to OSHA's Pneumatic Tools Safety Guidelines.\u003c\/p\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eActual color may vary slightly from product images due to monitor calibration and lighting conditions.\u003c\/li\u003e\n  \u003cli\u003ePlease allow a slight manual measurement deviation for listed dimensions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pressure_switch\" target=\"_blank\" rel=\"noopener\"\u003ePressure switch\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the difference between the QPM11-NC and QPM11-NO air pressure switch configurations?\u003c\/h4\u003e\n\u003cp\u003eA: The QPM11-NC (Normally Closed) configuration keeps the circuit closed under normal conditions and opens when the set pressure threshold is reached. The QPM11-NO (Normally Open) configuration keeps the circuit open and closes when the pressure reaches the set point. The correct choice depends on your system's wiring logic and safety requirements.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What pressure range does the QPM11 pneumatic pressure switch support?\u003c\/h4\u003e\n\u003cp\u003eA: The QPM11 supports two pressure ranges: 0.1–1 MPa for higher-pressure compressor and industrial applications, and 0.01–0.1 MPa for lower-pressure systems. Both ranges are adjustable via the hexagonal screw for precise threshold customization.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this air pressure switch compatible with both AC and DC systems?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The QPM11 pressure switch is compatible with AC 110V, AC 220V, DC 12V, and DC 24V operating voltages, making it highly versatile for use in a wide range of pneumatic compressors, CNC machines, automated production lines, and other industrial control systems.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I install the QPM11 pneumatic compressor pressure switch?\u003c\/h4\u003e\n\u003cp\u003eA: The QPM11 uses an external thread (PT1\/4) for installation. Simply thread it into the appropriate port on your compressor or pneumatic system, connect the wiring to your control circuit, and adjust the pressure set point using the hexagonal screw. Clear labeling on the switch simplifies the setup process.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the difference between the QPM11-NC and QPM11-NO air pressure switch configurations?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The QPM11-NC (Normally Closed) configuration keeps the circuit closed under normal conditions and opens when the set pressure threshold is reached. The QPM11-NO (Normally Open) configuration keeps the circuit open and closes when the pressure reaches the set point. The correct choice depends on your system's wiring logic and safety requirements.\"}}, {\"@type\": \"Question\", \"name\": \"What pressure range does the QPM11 pneumatic pressure switch support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The QPM11 supports two pressure ranges: 0.1–1 MPa for higher-pressure compressor and industrial applications, and 0.01–0.1 MPa for lower-pressure systems. Both ranges are adjustable via the hexagonal screw for precise threshold customization.\"}}, {\"@type\": \"Question\", \"name\": \"Is this air pressure switch compatible with both AC and DC systems?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The QPM11 pressure switch is compatible with AC 110V, AC 220V, DC 12V, and DC 24V operating voltages, making it highly versatile for use in a wide range of pneumatic compressors, CNC machines, automated production lines, and other industrial control systems.\"}}, {\"@type\": \"Question\", \"name\": \"How do I install the QPM11 pneumatic compressor pressure switch?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The QPM11 uses an external thread (PT1\/4) for installation. Simply thread it into the appropriate port on your compressor or pneumatic system, connect the wiring to your control circuit, and adjust the pressure set point using the hexagonal screw. Clear labeling on the switch simplifies the setup process.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/oasis-select.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Electronics \u0026 Tech\", \"item\": \"https:\/\/oasis-select.com\/collections\/electronics-tech\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"QPM11 Air Pressure Switch 1\/4\\\" NC\/NO Pneumatic Compressor Control\", \"item\": \"https:\/\/oasis-select.com\/products\/qpm11-air-pressure-switch-1-4-inch-nc-no-pneumatic-compressor-controller\"}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"QPM11-NC","offer_id":47748783210601,"sku":"14:201441572#QPM11-NC","price":19.24,"currency_code":"USD","in_stock":true},{"title":"QPM11-NO","offer_id":47748783243369,"sku":"14:10#QPM11-NO","price":19.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/S3505ec8c181f4b3c99db64d2f0436858S.webp?v=1783088557","url":"https:\/\/oasis-select.com\/products\/qpm11-air-pressure-switch-1-4-inch-nc-no-pneumatic-compressor-controller","provider":"Oasis Select","version":"1.0","type":"link"}