{"title":"WATKINS-JOHNSON Spare Parts","description":null,"products":[{"product_id":"toroidal-orifice-wj999-3-0-11-32-911701-001","title":"Toroidal Orifice, WJ999 \/ 3.0 (11\/32\") 911701-001","description":"\u003cp\u003eThe \u003cstrong\u003eToroidal Orifice WJ999 \/ 3.0 (11\/32\")\u003c\/strong\u003e is a precision \u003cstrong\u003eflow control component\u003c\/strong\u003e used in \u003cstrong\u003eWatkins-Johnson (WJ999 series) semiconductor processing systems\u003c\/strong\u003e, typically within \u003cstrong\u003egas or liquid delivery assemblies\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eA \u003cem\u003etoroidal orifice\u003c\/em\u003e features a \u003cstrong\u003ering-shaped (annular) flow geometry\u003c\/strong\u003e, designed to provide \u003cstrong\u003euniform, controlled flow distribution\u003c\/strong\u003e while minimizing turbulence and pressure fluctuations. This design is critical in semiconductor tools where \u003cstrong\u003estable and repeatable flow characteristics\u003c\/strong\u003e directly impact process consistency and yield.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e11\/32\" orifice size\u003c\/strong\u003e defines the effective flow restriction diameter, calibrated for specific process conditions and system configurations. Toroidal orifices are commonly paired with \u003cstrong\u003esprings, seals, and rotating assemblies\u003c\/strong\u003e in WJ systems to regulate flow dynamically.\u003c\/p\u003e","brand":"83TECH PTE LTD","offers":[{"title":"Default Title","offer_id":44826618396765,"sku":null,"price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0746\/5422\/0381\/files\/17-2_124b83f4-a4f8-4969-b8c3-61859d9b728b.jpg?v=1785384625"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0746\/5422\/0381\/collections\/Watkins-Johnson.jpg?v=1785394674","url":"https:\/\/83techsg.com\/collections\/watkins-johnson-spare-parts.oembed","provider":"83TECH PTE LTD","version":"1.0","type":"link"}