{"product_id":"welch-full-chemical-resistant-oil-free-diaphragm-pump","title":"Welch Full Chemical Resistant Oil Free Diaphragm Pump","description":"\u003ch2 class=\"text-2xl font-bold mt-1 text-text-100\"\u003eWelch 2052 \u0026amp; 2163 Full Chemical-Resistant Diaphragm Vacuum Pumps\u003c\/h2\u003e\n\u003cp class=\"whitespace-normal break-words\"\u003e\u003cstrong\u003eGerman-Engineered Oil-Free Performance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"whitespace-normal break-words\"\u003eThe Welch 2052 and 2163 full chemical-resistant diaphragm vacuum pumps deliver exceptional oil-free performance for demanding laboratory applications requiring deep vacuum capability without contamination risks. Manufactured in Germany with precision engineering, these portable systems eliminate the maintenance burden and costs associated with oil-sealed pumps—no more frequent oil changes, no risk of cross-contamination, and significantly reduced operational expenses. The 2052 features a 4-head design with all-PTFE contact surfaces, delivering 2.3 CFM pumping rate and achieving ultimate vacuum levels of 1.5 torr (2 mbar, 0.2 kPa), while the high-capacity 2163 utilizes an 8-head configuration with all-aluminum contact surfaces to generate 6.1 CFM (174 L\/min) throughput with ultimate vacuum of 6 torr (8 mbar). Both models achieve maximum vacuum of 29.9 in. Hg and feature all-PTFE gasket materials ensuring complete chemical resistance for corrosive vapors and aggressive solvents commonly encountered in rotary evaporation and distillation processes.\u003c\/p\u003e\n\u003cp class=\"whitespace-normal break-words\"\u003e\u003cstrong\u003eVersatile Connectivity with Complete Support\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"whitespace-normal break-words\"\u003eAvailable through Ai as the official Welch vacuum pump dealer, both models come with comprehensive one-year warranty and full technical support from Welch Vacuum. The compact, portable designs make these pumps ideal for flexible laboratory placement, with the 2052 measuring 230×380×180mm and the 2163 at 540×240×310mm. Connection options are tailored to different applications: the 2052 features 1\/4\" (6.4mm) NPT inlet\/outlet connections, while the 2163 utilizes KF16 flange fittings for standardized vacuum system integration. The 2052 operates on 220-240V 50\/60Hz single phase power (0.53 HP, 390 watts), and the 2163 offers dual voltage capability at 110V or 220V 50\/60Hz for global compatibility. Each pump includes complimentary three feet of 3\/8\" (9.5mm) white premium food-grade silicone vacuum tubing ($19.99 value), providing immediate operational readiness for chemical-resistant vacuum applications.\u003c\/p\u003e\n\u003ch3 class=\"whitespace-normal break-words\"\u003eFeatures:\u003c\/h3\u003e\n\u003cp class=\"whitespace-normal break-words\"\u003e\u003cstrong\u003eWelch 2052 (4-Head, Oil-Free Dry Diaphragm Vacuum Pump):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc space-y-1.5 pl-7\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Protection:\u003c\/strong\u003e Covered by a 1-Year Warranty for peace of mind.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eDeep Vacuum Capability\u003c\/strong\u003e: Achieves 1.5 torr (2 mbar, 0.2 kPa) ultimate vacuum for demanding applications.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eFull PTFE Contact Surfaces\u003c\/strong\u003e: Complete chemical resistance for corrosive vapours and aggressive solvents.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eEfficient Performance\u003c\/strong\u003e: 2.3 CFM pumping rate with oil-free operation.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eCompact Design\u003c\/strong\u003e: Space-saving 230×380×180mm footprint ideal for benchtop use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"whitespace-normal break-words\"\u003e\u003cstrong\u003eWelch 2163 (8-Head, High-Capacity,  Oil-Free Dry Diaphragm Vacuum Pump):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc space-y-1.5 pl-7\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Protection:\u003c\/strong\u003e Covered by a 1-Year Warranty for peace of mind.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eHigh Throughput\u003c\/strong\u003e: 6.1 CFM (174 L\/min) pumping rate for large-volume applications.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eAluminium Contact Surfaces\u003c\/strong\u003e: Robust construction with all-PTFE gaskets for chemical resistance.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eDeep Vacuum Performance\u003c\/strong\u003e: 6 torr (8 mbar) ultimate vacuum capability.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eDual Voltage\u003c\/strong\u003e: 110V or 220V compatibility for international laboratory use.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eKF16 Flange Connections\u003c\/strong\u003e: Standardized fittings for seamless vacuum system integration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"whitespace-normal break-words\"\u003e\u003cstrong\u003eBoth Models Feature:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc space-y-1.5 pl-7\"\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003eOil-free operation eliminates maintenance costs and contamination risks.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003eGerman engineering with one-year warranty and full technical support.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003ePortable design for flexible laboratory placement.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003eMaximum vacuum of 29.9 in. Hg.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003eAll-PTFE gasket materials for complete chemical resistance.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003eIncludes premium food-grade silicone vacuum tubing ($19.99 value).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0885\/3497\/4834\/files\/Across_International_Logo_1_Year_Warranty.jpg?v=1759922538\" alt=\"\" width=\"481\" height=\"115\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNeed Help?\u003c\/strong\u003e\u003cspan\u003e Call \u003c\/span\u003e\u003ca title=\"Need Help? Call 1300 812 450\" href=\"tel:1300812450\"\u003e1300 812 450\u003c\/a\u003e\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003cp\u003e                                                        Welch 2052\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0885\/3497\/4834\/files\/Welch_2052_Diaphragm_Vacuum_Pumps.jpg?v=1760070397\" alt=\"\" width=\"700\" height=\"313\"\u003e\u003c\/p\u003e\n\u003cp\u003e                                                         Welch 2163\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0885\/3497\/4834\/files\/Welch_2163_Diaphragm_Vacuum_Pumps.jpg?v=1760070397\" alt=\"\" width=\"700\" height=\"443\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0885\/3497\/4834\/files\/Across_International_Logo_1_Year_Warranty.jpg?v=1759922538\" alt=\"\" width=\"481\" height=\"115\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNeed Help?\u003c\/strong\u003e\u003cspan\u003e Call \u003c\/span\u003e\u003ca title=\"Need Help? Call 1300 812 450\" href=\"tel:1300812450\"\u003e1300 812 450\u003c\/a\u003e\u003c\/p\u003e","brand":"Across International","offers":[{"title":"Welch 2052 - 2.3 CFM 4-Head Diaphragm Pump","offer_id":60740503273842,"sku":"Welch 2052","price":8592.95,"currency_code":"AUD","in_stock":true},{"title":"Welch 2163 - 6.1 CFM 8-Head Diaphragm Pump","offer_id":60740503306610,"sku":"Welch 2163","price":9439.65,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/3497\/4834\/files\/Welch_2052_-_4_Head_Diaphragm_Pump_Angled_Left_Front_View.jpg?v=1759662957","url":"https:\/\/labdevicesaustralia.com.au\/products\/welch-full-chemical-resistant-oil-free-diaphragm-pump","provider":"Lab Devices Australia","version":"1.0","type":"link"}