--- product_id: 50324020 title: "LMI Milton Roy B121-392SI Metering / Dosing Pump Motor 120VACMissing Pump" brand: "lmi metering pump" price: "AR$6979213" currency: ARS in_stock: true category: "Lmi Metering Pump" url: https://www.desertcart.com.ar/products/50324020-lmi-milton-roy-b121-392si-metering-dosing-pump-motor-120vacmissing store_origin: AR region: Argentina --- # Fully enclosed, chemical-resistant drive Positive displacement Liquifram tech Dual dial stroke & frequency control LMI Milton Roy B121-392SI Metering / Dosing Pump Motor 120VACMissing Pump **Brand:** lmi metering pump **Price:** AR$6979213 **Availability:** ✅ In Stock ## Summary > ⚡ Dial in precision, lock in reliability — the pump pros trust! ## Quick Answers - **What is this?** LMI Milton Roy B121-392SI Metering / Dosing Pump Motor 120VACMissing Pump by lmi metering pump - **How much does it cost?** AR$6979213 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/50324020-lmi-milton-roy-b121-392si-metering-dosing-pump-motor-120vacmissing) ## Best For - lmi metering pump enthusiasts ## Why This Product - Trusted lmi metering pump brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Robust Safety Design:** Enclosed drive assembly with no exposed moving parts ensures maximum operational safety. - • **Precision Flow Control:** Adjust output volume on-the-fly from zero to max without stopping your workflow. - • **Energy Efficient Performance:** Consumes less than 29 watts even at full speed and max pressure—smart power use for smart managers. - • **Chemical-Resistant Durability:** Glass fiber reinforced thermoplastic housing resists harsh chemicals for long-lasting reliability. - • **Easy Maintenance & Installation:** Quick-replace valve seats and included 16 ft tubing with secure connections get you up and running fast. ## Overview The LMI Milton Roy B121-392SI is a UL and CUL approved positive displacement chemical metering pump featuring adjustable output volume via dual dial controls. Its fully enclosed, chemical-resistant drive assembly ensures safety and durability, while consuming under 29 watts at peak operation. Lightweight at under 15 lbs, it includes 16 ft of tubing and easy-to-maintain valve components, making it an efficient, reliable choice for precise chemical dosing in demanding industrial environments. ## Description General Description : LMI Series B chemical metering pumps shall be positive displacement, Liquifram type pumps that are UL and CUL approved. Output volume shall be adjustable while pumps are in operation from zero to maximum capacity. Pump Controls : Adjustment shall be by means of readily accessible dial knobs, one for changing stroke length and the other for changing stroke frequency. Both knobs are to be located opposite the liquid handling end. Drive Assembly : The pump drive shall be totally enclosed with no exposed moving parts. Electronics shall be housed in chemical resistant enclosure at the rear of the pump for maximum protection against chemical spillage. Electrical power consumption shall not exceed 29 watts per hour under full speed and maximum pressure conditions. Pump weight shall not exceed 15 lbs (6.9 kg). Pressure Relief : To eliminate need for pressure relief valve, Liquifram shall automatically stop pulsating when discharge pressure exceeds pump pressure rating by not more than 35%. Materials of Construction : Chemical metering pump housing shall be of chemically resistant glass fiber reinforced thermoplastic. All exposed fasteners shall be stainless steel. Valve seat and seal ring shall be renewable by replacing only the combination seat-seal ring or cartridge valve assembly. Check Valve / Tubing Connections : A total of 16 ft (4.8 m) of tubing shall be provided per pump complete with compressing connections (on models with tubing connections). A foot valve with integral one piece strainer shall be provided for the suction line (on non-high viscosity models with tubing connections), and an injection check / back pressure valve with 1 / 2' NPT male connection for the injection point (on models with tubing connections). ## Features - General Description : LMI Series B chemical metering pumps shall be positive displacement, Liquifram type pumps that are UL and CUL approved - Output volume shall be adjustable while pumps are in operation from zero to maximum capacity - Pump Controls : Adjustment shall be by means of readily accessible dial knobs, one for changing stroke length and the other for changing stroke frequency - Both knobs are to be located opposite the liquid handling end - Drive Assembly : The pump drive shall be totally enclosed with no exposed moving parts ## Images ![LMI Milton Roy B121-392SI Metering / Dosing Pump Motor 120VACMissing Pump - Image 1](https://m.media-amazon.com/images/I/71lCMml9aDL.jpg) ## Frequently Bought Together - LMI Milton Roy B121-392SI Metering / Dosing Pump Motor 120VACMissing Pump - Kamoer NKP low flow peristaltic pump 12V dc DIY liquid small dosing pump for aquarium lab analytical 3mm ID x 5mm OD --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.ar/products/50324020-lmi-milton-roy-b121-392si-metering-dosing-pump-motor-120vacmissing](https://www.desertcart.com.ar/products/50324020-lmi-milton-roy-b121-392si-metering-dosing-pump-motor-120vacmissing) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-05-24*