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Masterflex PerfectPosition BioPharm Plus Silicone Tubing, B/T 91; 10 ft/Pk

Item# DO-96445-91

$586.80 USD/PACKAGE of 1

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  • Ensure optimum performance from your Masterflex® pump
  • Ultra-smooth inner surface minimizes particle entrapment.
  • Lower absorption; excellent biocompatibility; no leachable additive, DOP, or plasticizers.
  • Very low extractables.
  • Odorless and nontoxic, fungus-resistant.
  • No taste imparted to transported fluids.
  • Weather, ozone, corona, and radiation resistant.
  • Longest life of any silicone pump tubing.
  • Lower spallation than regular silicone.
  • Enhanced pressure capability.
  • Fungus-resistant.
  • Lower gas permeability than other
  • silicones.
  • Use with many acids and alkalies.
  • PerfectPosition™ tubing retention marks indicate the exact placement of tubing in the pump head to provide the best performance and life of the tubing
  • Custom extruded to fit 77110- and 77111-series Masterflex® B/T® pumps and pump heads
  • Engineered for long life in peristaltic pump applications
Application suitability:
Acids Not recommended
Alkalies Not recommended
Organic solvents Not recommended
Pressure Fair
Vacuum Good
Viscous fluids Fair
Sterile fluids Excellent

Physical characteristics:
Thermal set rubber.
Siloxane polymers and amorphous silica.
Excellent compression strength.
Soft material.
Translucent, clear to light amber.

Temperature range:
(static): -50 to 230C (-58 to 446F)
(dynamic): -40 to 100C (-40 to 212F)

Meets classifications:
USP Class VI
European Pharmacopoeia (EP 3.2.9)
FDA 21 CFR 177.2600;
Exceeds 3A Sanitary;
Reach Compliant,
RoHS Compliant,

Sterilize: EtO, Autoclave, Gamma Radiation

These new Masterflex B/T tubing sizes 87 and 91 are optimized to provide better performance in higher-pressure applications. Each tubing size is manufactured to extremely close tolerances that match our B/T pump heads. These tight tolerances ensure accurate, repeatable flow, and long tubing life. Plus, the PerfectPosition tubing retention marks (found on most of the tubing formulations), indicate the best placement of the tubing within the pump head.

Choose from a variety of tubing formulations to allow for optimal performance in the most challenging applications.

Product Type Pump Tubing
Tubing formulation BioPharm Plus (platinum cured silicone)
Pump Series B/T
Masterflex tubing size (B/T) 91
Tubing ID (mm) 19.0
Hose barb size (in.) 3/4
Flow range with 12 to 321 rpm drive Gallons/min 0.4 to 11.16
Flow range with 12 to 321 rpm drive (Liters/min) 1.4 to 44
Max pressure (bar) 2.06
Max pressure (psi) 30
Max vacuum (mm Hg) 660
Min temperature (º C) -59
Min temperature (º F) -75
Max temperature (º C) 232
Temperature range (º C) (Dynamic) -40 to 100
Temperature range (º F) (Dynamic) -40 to 212
Suction lift (m H2O) 8.8
Suction lift (ft H2O) 29
Length per pack (m) 3
Length per pack (ft) 10
Max vacuum (" Hg) 26
Resin certification (USP) Yes
Resin certification (European Pharmacopoeia) Yes
Resin certification (FDA) Yes
Resin certification (3A) Yes
Resin certification (non-DEHP) Yes
Resin certification (non-phthalate) Yes
Resin certification (RoHS) Yes
Sterilization Method Autoclave, Ethylene Oxide, Gamma Irradiation
Brand Masterflex
Qty/ea 1





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