{"product_id":"danfoss-hp22-22mm-2-port-valve-c-w-hpa2-actuator","title":"Danfoss HP22 22mm 2-Port Valve c\/w HPA2 Actuator","description":"\u003cdiv class=\"flex flex-col text-sm pb-25\"\u003e\n\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-695fa52d-9378-8330-83c9-129342a9ebde-32\" data-testid=\"conversation-turn-240\" data-scroll-anchor=\"true\" data-turn=\"assistant\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] @w-sm\/main:[--thread-content-margin:--spacing(6)] @w-lg\/main:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"450c63a2-422a-4ef1-9afb-323ec7fdd5ba\" dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-2\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[1px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full break-words light markdown-new-styling\"\u003e\n\u003cp data-start=\"23\" data-end=\"314\"\u003eThe \u003cstrong data-start=\"27\" data-end=\"81\"\u003eDanfoss HP22 22 mm 2-Port Valve with HPA2 Actuator\u003c\/strong\u003e is a motorised control valve used in central heating and plumbing systems to regulate the flow of water through a single heating circuit. It combines a robust valve body with a Danfoss HPA2 actuator for reliable automatic operation.\u003c\/p\u003e\n\u003ch3 data-start=\"316\" data-end=\"340\"\u003eFunction \u0026amp; Purpose\u003c\/h3\u003e\n\u003cp data-start=\"341\" data-end=\"770\"\u003eThis 2-port valve opens and closes in response to a control signal, usually from a thermostat or heating controller. When heat is demanded, the actuator drives the valve to the open position to allow hot water to flow through the circuit. When the demand ends, it returns to the closed position to isolate the circuit. This automatic control enables efficient zoning and helps ensure the heating system only operates when needed.\u003c\/p\u003e\n\u003ch3 data-start=\"772\" data-end=\"791\"\u003eCompatibility\u003c\/h3\u003e\n\u003cp data-start=\"792\" data-end=\"1071\"\u003eThe valve is designed for \u003cstrong data-start=\"818\" data-end=\"844\"\u003e22 mm pipe connections\u003c\/strong\u003e, making it suitable for standard domestic and light commercial central heating systems that use 22 mm copper or compatible pipework. The HPA2 actuator interfaces with typical room thermostats, programmers, and boiler controls.\u003c\/p\u003e\n\u003ch3 data-start=\"1073\" data-end=\"1101\"\u003eDesign \u0026amp; Build Quality\u003c\/h3\u003e\n\u003cp data-start=\"1102\" data-end=\"1386\"\u003eThe Danfoss HP22 valve body is engineered for durability and smooth operation, and the HPA2 actuator provides dependable, quiet movement. The actuator housing and valve construction are designed to withstand regular cycling and the pressures and temperatures found in heating systems.\u003c\/p\u003e\n\u003ch3 data-start=\"1388\" data-end=\"1412\"\u003eIdeal Applications\u003c\/h3\u003e\n\u003cp data-start=\"1413\" data-end=\"1741\"\u003eThis 2-port valve is ideal for zoning a heating system, controlling a single circuit (such as radiators), or controlling the flow to a hot water cylinder in simpler installations. It is suitable for new heating system installations, upgrades, and replacements where automatic flow control is required for comfort and efficiency.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e","brand":"Danfoss","offers":[{"title":"Default Title","offer_id":57047896555865,"sku":"118261","price":97.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0982\/9738\/1209\/files\/118261.jpg?v=1768222009","url":"https:\/\/plumbpartsxpressshop.com\/products\/danfoss-hp22-22mm-2-port-valve-c-w-hpa2-actuator","provider":"Plumbparts xpress","version":"1.0","type":"link"}