Pump Head, E-z Load II - L/S, Thick


L/S® Easy-Load® II pump head for precision tubing, fixed occlusion, SS rotor.


  • Automatic retention holds tubing securely in place with no manual adjustment—just load the tubing and start the pump
  • Four-roller rotor improves pressure performance and mechanical stability while reducing pulsation.
  • Improved occlusion bed geometry lengthens tubing life.
  • Polyphenylene sulfide (PPS) housing with either stainless steel (SS) or cold-rolled steel (CRS) rotor—choose CRS for economy or SS for greater durability and chemical resistance.
  • Model 77201-60 with adjustable occlusion gives you the option of loosening occlusion for longer tubing life or increasing occlusion for higher pressure.
  • Each pump head for precision pump tubing accepts tubing sizes L/S® 13, L/S® 14, L/S® 16, L/S® 25, L/S® 17, and L/S® 18. Achieve flow rates of 0.06 to 2300 mL/min (1 to 600 rpm).


mL/rev: Depends on tubing selected. See Chart Below
Accepted tubing: L/S® 13, L/S 14, L/S 16, L/S 25, L/S 17, L/S 18
Rotor material: Stainless steel
Housing material: Polyphenylene sulfide
Pressure Chart: See Chart Below
Rollers: Four; stainless steel
Occlusion: Fixed
Dimensions: 5"W x 4-3/4"H x 2-3/4"D; (12.7 x 12.1 x 7.0 cm)

Peristaltic Pump Head Flow, Pressure, and Vacuum Chart

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