{"product_id":"watson-marlow-peristaltic-pump-4-roller-pumphead-314d","title":"Watson Marlow Peristaltic Pump 4-Roller Pumphead 314D","description":"\u003ch3\u003eWatson-Marlow 314D Peristaltic Pumphead – 4-Roller Rotor Assembly, Iconic Flip-Top Rapid Tube Loading Design, Engineered for 1.6 mm Wall Thickness Continuous Tubing, Single Channel (MPN: 133.4411.S84 \/ 033.4411.000)\u003c\/h3\u003e\n\u003cp\u003eThe Watson-Marlow 314D (Precision part code matrix 133.4411.S84, sharing mechanical heritage with the standard 033.4411.000 platform) is a premium, clinical-grade peristaltic pumphead engineered to deliver pulse-free, high-accuracy liquid transfers across fluidic systems, automated analytical lines, and bio-processing decks. Fabricated from a rugged polyacrylamide-IXEF (PARA) track framework paired with a glass-filled polypropylene housing, this single-channel pumphead features a specialized four-roller rotor layout. The four-roller configurations significantly reduce mechanical pulse spikes and achieve higher dosing accuracy tolerances than standard three-roller options (such as the 313D). Utilizing Watson-Marlow’s iconic flip-top rapid-load clamp structure, this pumphead permits automated or manual continuous tubing transitions in seconds without requiring separate connectors, minimizing fluid shear stresses on fragile biological targets.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Performance and Engineering\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eIconic Flip-Top Rapid Loading Design:\u003c\/b\u003e Features an attached mechanical lever latch that hinges open the entire track bed. This allows technicians to slide continuous lines of peristaltic tubing straight into the compression arc without trimming, threading, or breaking aseptic system loops.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eLow-Pulsation 4-Roller Geometry:\u003c\/b\u003e Outfitted with four high-precision rollers molded from MoS2-filled Nylon 6 (Nylatron®) mounted to electroless nickel-plated hardened steel spindles. The dense mechanical tracking splits compression loads cleanly, supplying a highly uniform flow path with minimal fluid ripple lines.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eVariable Tube Size Adjusting Clamps:\u003c\/b\u003e Equipped with spring-loaded, self-adjusting side tube clamps that securely lock onto multiple continuous tubing wall bores without manual jaw adjustments, completely preventing tubing creeping or lateral migration under backpressures.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eRobust Multi-Channel Modular Extension:\u003c\/b\u003e Structural faceplates feature a quick-dock bayonet interface configuration. Depending on system drive motor torque ratings, users can stack extension pumpheads (314X) directly to the front face to build up to six separate fluid routing lines simultaneously.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eCatalog Number \/ Partcode:\u003c\/b\u003e 133.4411.S84 (Cross-listed within the 314D engineering line as 033.4411.000)\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eManufacturer \/ Brand:\u003c\/b\u003e Watson-Marlow Fluid Technology Solutions (WMFTS)\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003ePumphead Type Variant:\u003c\/b\u003e 314D Series (4 Rollers, Single Channel, Variable Clamp Track)\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eVolumetric Flow Rates Capacity:\u003c\/b\u003e Yields flow rates from 0.05 mL\/min up to 1200 mL\/min under continuous tracking speeds (Up to 2400 mL\/min for intermittent short bursts at 400 RPM)\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eCompatible Tubing Wall Thickness:\u003c\/b\u003e Calibrated strictly for 1.6 mm (1\/16 inch) wall thickness peristaltic tubing profiles\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eCompatible Tubing Inner Diameters:\u003c\/b\u003e Accepts standard internal bores spanning 0.5 mm, 0.8 mm, 1.6 mm, 3.2 mm, 4.8 mm, 6.4 mm, and 8.0 mm\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eHousing Chemistry Structure:\u003c\/b\u003e Polyacrylamide-IXEF (PARA) front track and lever \/ Glass-filled Polypropylene rear plate shell \/ Stainless steel hardware pivots\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eInternal Bearings Matrix:\u003c\/b\u003e Fully sealed precision carbon steel ball bearings\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Benefits and Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eUpstream Cell Culture Feeding:\u003c\/b\u003e The gold standard fluidic driver for routing media, sterile buffers, and acid\/base pH balancing reagents into laboratory fermenters and glass bioreactors without shearing active cell matrices.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eHigh-Precision Analytical Dosing:\u003c\/b\u003e Precise volumetric displacement dynamics make this head highly suitable for automated sample routing, analytical reagent addition, and fractions collecting arrays inside industrial chromatography rigs.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eZero Internal Fluid Contamination:\u003c\/b\u003e Pumping mechanics interact entirely with the outer wall of the tubing line. Fluids never touch the pump components, guaranteeing an isolation boundary that blocks systemic carryover cross-contamination risks.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eUniversal Drive Mount Integration:\u003c\/b\u003e The rear bayonet mounting interface connects seamlessly to Watson-Marlow cased lab drives (such as the 323 or 520 series) or mounts directly to panel liquid handling cabinets via standard adapter kits.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\u003cp style=\"margin: 0; font-size: 0.8em;\"\u003e\u003ci\u003eAll product names, logos, and brands are property of their respective owners.\u003c\/i\u003e\u003c\/p\u003e","brand":"Watson-Marlow","offers":[{"title":"Default Title","offer_id":44497046110460,"sku":"6802","price":160.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/8463\/5132\/files\/watson-marlow-peristaltic-pump-4-roller-pumphead-314d-lab-equipmentother-lab-equipment-watson-marlow-511684.jpg?v=1719283585","url":"https:\/\/lifesciencestrading.com\/products\/watson-marlow-peristaltic-pump-4-roller-pumphead-314d","provider":"Life Sciences Trading","version":"1.0","type":"link"}