{"product_id":"asab-double-diaphragm-replacement-parts-19-ddp18-replacement-air-valve-housing","title":"ASAB DDP18 Replacement Parts #19 - Air Valve Housing","description":"\u003cp data-start=\"0\" data-end=\"29\"\u003e\u003cstrong\u003ePart Code: ASAB-SDDP18-19\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"31\" data-end=\"399\"\u003eIntroducing the \u003cstrong data-start=\"47\" data-end=\"73\"\u003eASAB Air Valve Housing\u003c\/strong\u003e — the main air-end body component designed to support and locate the air valve parts in \u003cstrong data-start=\"162\" data-end=\"199\"\u003eASAB DDP18 Double Diaphragm Pumps\u003c\/strong\u003e. This housing forms the structure for the valve plate\/shift mechanism, sealing interfaces, and air passages that control how the pump cycles, making it a critical part for smooth, reliable operation.\u003c\/p\u003e\n\u003cp data-start=\"401\" data-end=\"892\"\u003eA damaged or worn air valve housing can cause a stack of frustrating issues, including \u003cstrong data-start=\"488\" data-end=\"589\"\u003eair leaks, poor shifting, stalling, erratic cycling, reduced output, or repeat air valve failures\u003c\/strong\u003e (often from scoring, cracking, warped sealing faces, or damaged threads). Replacing the housing is the correct fix when sealing surfaces won’t clean up, threads are stripped, or the valve face has been chewed out — especially after contamination or a dry, gritty airline has been hammering the air end.\u003c\/p\u003e\n\u003cp data-start=\"894\" data-end=\"1159\"\u003eWhether you’re rebuilding a pump that won’t shift properly, fixing persistent air leaks, or restoring a unit that’s been run hard in rough conditions, the \u003cstrong data-start=\"47\" data-end=\"73\"\u003eASAB Air Valve Housing\u003c\/strong\u003e is the right part to get your DDP18 air valve assembly back to proper, job-ready condition.\u003c\/p\u003e\n\u003ch2 data-start=\"1166\" data-end=\"1181\"\u003eKey Benefits\u003c\/h2\u003e\n\u003cul data-start=\"1183\" data-end=\"1691\"\u003e\n\u003cli data-start=\"1183\" data-end=\"1246\"\u003e\n\u003cp data-start=\"1185\" data-end=\"1246\"\u003e\u003cstrong data-start=\"1185\" data-end=\"1225\"\u003eDirect replacement air valve housing\u003c\/strong\u003e for \u003cstrong data-start=\"1230\" data-end=\"1244\"\u003eASAB DDP18\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1247\" data-end=\"1318\"\u003e\n\u003cp data-start=\"1249\" data-end=\"1318\"\u003eRestores correct alignment and support for \u003cstrong data-start=\"1292\" data-end=\"1316\"\u003eair valve components\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1319\" data-end=\"1408\"\u003e\n\u003cp data-start=\"1321\" data-end=\"1408\"\u003eHelps resolve issues like \u003cstrong data-start=\"1347\" data-end=\"1406\"\u003eair leaks, stalling, erratic cycling, and poor shifting\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1409\" data-end=\"1486\"\u003e\n\u003cp data-start=\"1411\" data-end=\"1486\"\u003eCorrect fix when valve faces are \u003cstrong data-start=\"1444\" data-end=\"1461\"\u003escored\/warped\u003c\/strong\u003e or threads are damaged\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1487\" data-end=\"1570\"\u003e\n\u003cp data-start=\"1489\" data-end=\"1570\"\u003eSupports consistent air distribution for smoother cycling and better efficiency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1571\" data-end=\"1631\"\u003e\n\u003cp data-start=\"1573\" data-end=\"1631\"\u003eIdeal for \u003cstrong data-start=\"1583\" data-end=\"1610\"\u003efull air valve rebuilds\u003c\/strong\u003e and major services\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1632\" data-end=\"1691\"\u003e\n\u003cp data-start=\"1634\" data-end=\"1691\"\u003eWorkshop-ready component for reliable, long-term repair\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"1698\" data-end=\"1716\"\u003eWhat’s Included\u003c\/h2\u003e\n\u003cul data-start=\"1718\" data-end=\"1768\"\u003e\n\u003cli data-start=\"1718\" data-end=\"1768\"\u003e\n\u003cp data-start=\"1720\" data-end=\"1768\"\u003e\u003cstrong data-start=\"1720\" data-end=\"1747\"\u003eDDP18 Air Valve Housing\u003c\/strong\u003e — \u003cstrong data-start=\"1750\" data-end=\"1768\"\u003eASAB-SDDP18-19\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"1775\" data-end=\"1792\"\u003eSafety Check\u003c\/h2\u003e\n\u003cul data-start=\"1794\" data-end=\"2607\"\u003e\n\u003cli data-start=\"1794\" data-end=\"1940\"\u003e\n\u003cp data-start=\"1796\" data-end=\"1940\"\u003e\u003cstrong data-start=\"1796\" data-end=\"1831\"\u003eIsolate and depressurise first:\u003c\/strong\u003e Shut off air supply, bleed the air line fully, and confirm the pump is not pressurised before disassembly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1941\" data-end=\"2048\"\u003e\n\u003cp data-start=\"1943\" data-end=\"2048\"\u003e\u003cstrong data-start=\"1943\" data-end=\"1985\"\u003eLock-out\/tag-out if on a plant system:\u003c\/strong\u003e Verify zero pressure—don’t rely on a single isolation valve.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2049\" data-end=\"2186\"\u003e\n\u003cp data-start=\"2051\" data-end=\"2186\"\u003e\u003cstrong data-start=\"2051\" data-end=\"2081\"\u003eKeep the air end spotless:\u003c\/strong\u003e Dirt or scoring on valve faces will cause repeat failures—clean parts and work on a lint-free surface.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2187\" data-end=\"2337\"\u003e\n\u003cp data-start=\"2189\" data-end=\"2337\"\u003e\u003cstrong data-start=\"2189\" data-end=\"2219\"\u003eInspect mating components:\u003c\/strong\u003e Check valve plate, seals, spool\/slider, and fasteners for wear so you’re not bolting worn parts onto a new housing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2338\" data-end=\"2469\"\u003e\n\u003cp data-start=\"2340\" data-end=\"2469\"\u003e\u003cstrong data-start=\"2340\" data-end=\"2365\"\u003eEven tightening only:\u003c\/strong\u003e Tighten bolts evenly in a cross pattern—over-tightening can distort sealing faces and cause sticking.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2470\" data-end=\"2607\"\u003e\n\u003cp data-start=\"2472\" data-end=\"2607\"\u003e\u003cstrong data-start=\"2472\" data-end=\"2491\"\u003eTest gradually:\u003c\/strong\u003e Reconnect air and bring pressure up slowly, checking for leaks and smooth cycling before returning to full service.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2614\" data-end=\"2667\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2614\" data-end=\"2667\" data-is-last-node=\"\"\u003eASAB – Engineered for Performance, Built to Last.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Australian Spray \u0026 Blast","offers":[{"title":"Default Title","offer_id":48347552448727,"sku":"ASAB-SDDP18-19","price":6.3,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/9925\/4743\/files\/ASABLOGO.jpg?v=1773006894","url":"https:\/\/asab.au\/products\/asab-double-diaphragm-replacement-parts-19-ddp18-replacement-air-valve-housing","provider":"Australian Spray \u0026 Blast","version":"1.0","type":"link"}