Two-Way Non-Rebreathing Respiratory Valves

Two-Way Non-Rebreathing Respiratory Valves

These valves are available in either a T- or Y-shaped configuration and allow the separation of expired air either for collection or for use with pneumotachometers.

  • Inhalation and exhalation ports use a Spiral-Type™ diaphragm to direct flow, which is a patented uni-directional diaphragm
  • Function in any position
  • Not gravity dependent
  • Very sensitive to low flows
  • Spiral-Type™ diaphragm has a patented long life, is non-sticking and maintains excellent elasticity and sensitivity
  • Easily customized

Item# Description U.S. List Price Quantity
59-9370 Miniature T Two-Way Non-Rebreathing Valve
59-9371 Miniature T Two-Way Non-Rebreathing Valve
59-9372 Miniature T Two-Way Non-Rebreathing Valve
59-9373 Miniature T Two-Way Non-Rebreathing Valve
59-9377 Miniature Y Two-Way Non-Rebreathing Valve
59-9374 Miniature Y Two-Way Non-Rebreathing Valve
59-9375 Miniature Y Two-Way Non-Rebreathing Valve
59-9376 Miniature Y Two-Way Non-Rebreathing Valve
60-3121 Extra Small T Two-Way Non-Rebreathing Valves
60-3122 Extra Small T Two-Way Non-Rebreathing Valves
60-3123 Extra Small T Two-Way Non-Rebreathing Valves
59-9378 Extra Small Y Two-Way Non-Rebreathing Valves
59-9379 Extra Small Y Two-Way Non-Rebreathing Valves
59-9380 Extra Small Y Two-Way Non-Rebreathing Valves
Login for U.S. Pricing

These valves are available in either a T- or Y-shaped configuration and allow the separation of expired air either for collection or for use with pneumotachometers.

  • Inhalation and exhalation ports use a Spiral-Type™ diaphragm to direct flow, which is a patented uni-directional diaphragm
  • Function in any position
  • Not gravity dependent
  • Very sensitive to low flows
  • Spiral-Type™ diaphragm has a patented long life, is non-sticking and maintains excellent elasticity and sensitivity
  • Easily customized

These valves are available in a variety of sizes for small animals to large dogs. Select a valve according to the animal size used and the resistance to flow.

Two types of connectors are available: straight and standard medical tapers. Connectors having an OD or ID of 7.5, 10.5, 15 or 22 mm are standard medical tapers. All the other sizes are straight connectors. Both types allow quick, leak-free, twist attachment of the valves to other components.

Specifications59-937059-937159-937259-937359-937759-937459-937559-937660-312160-312260-312359-937859-937959-9380
Exhalation Port ID (mm)6.4 mm6.4 mm6.4 mm6.4 mm6.4 mm7.5 mm10.5 mm15 mm7.5 mm10.5 mm15 mm7.5 mm10.5 mm15 mm
Exhalation Port OD (mm)7.9 mm7.9 mm7.9 mm7.9 mm7.9 mm10.5 mm15 mm22 mm10.5 mm15 mm22 mm10.5 mm15 mm22 mm
Expiration Dead Space (including housing and mouth port tube)0.5 ml1.0 ml1.3 ml3.6 ml1.4 ml1.7 ml2.1 ml3.4 ml3.8 ml4.2 ml5.8 ml3.3 ml3.8 ml5.3 ml
Inhalation Port ID (mm)3.2 mm diameter hole in valve bodyFemale Luer Lock with 2.8 mm flow orifice5.1 mm15 mm6.4 mm7.5 mm10.5 mm15 mm7.5 mm10.5 mm15 mm7.5 mm10.5 mm15 mm
Inhalation Port OD (mm)3.2 mm diameter hole in valve bodyFemale Luer Lock with 2.8 mm flow orifice7.9 mm22 mm7.9 mm10.5 mm15 mm22 mm10.5 mm15 mm22 mm10.5 mm15 mm22 mm
Inspiration Dead Space (including housing and mouth port tube)0.5 ml0.8 ml1.3 ml3.6 ml1.4 ml1.7 ml2.1 ml3.4 ml3.8 ml4.2 ml5.8 ml3.3 ml3.8 ml5.3 ml
Resistance to Flow, 2 L/min flowInspiration 0.7 / Expiration 0.7 Differential Pressure (dP) in cm H2OInspiration 0.9 / Expiration 2.2 Differential Pressure (dP) in cm H2OInspiration 0.5 / Expiration 0.5 Differential Pressure (dP) in cm H2OInspiration 0.6 / Expiration 0.6 Differential Pressure (dP) in cm H2OInspiration 0.5 / Expiration 0.5 Differential Pressure (dP) in cm H2OInspiration 0.6 / Expiration 0.4 Differential Pressure (dP) in cm H2OInspiration 0.5 / Expiration 0.4 Differential Pressure (dP) in cm H2OInspiration 0.5 / Expiration 0.5 Differential Pressure (dP) in cm H2OInspiration 0.6 / Expiration 0.6 Differential Pressure (dP) in cm H2OInspiration 0.5 / Expiration 0.5 Differential Pressure (dP) in cm H2OInspiration 0.5 / Expiration 0.5 Differential Pressure (dP) in cm H2OInspiration 0.3 / Expiration 0.4 Differential Pressure (dP) in cm H2OInspiration 0.5 / Expiration 0.5 Differential Pressure (dP) in cm H2OInspiration 0.5 / Expiration 0.5 Differential Pressure (dP) in cm H2O
Resistance to Flow, 8 L/min flowInspiration 3.2 / Expiration 3.4 Differential Pressure (dP) in cm H2OInspiration 4.3 / Expiration 9.2 Differential Pressure (dP) in cm H2OInspiration 1.4 / Expiration 2.2 Differential Pressure (dP) in cm H2OInspiration 1.7 / Expiration 2.0 Differential Pressure (dP) in cm H2OInspiration 1.1 / Expiration 0.9 Differential Pressure (dP) in cm H2OInspiration 1.3 / Expiration 1.0 Differential Pressure (dP) in cm H2OInspiration 1.3 / Expiration 1.1 Differential Pressure (dP) in cm H2OInspiration 1.3 / Expiration 1.2 Differential Pressure (dP) in cm H2OInspiration 0.9 / Expiration 1.0 Differential Pressure (dP) in cm H2OInspiration 0.8 / Expiration 0.8 Differential Pressure (dP) in cm H2OInspiration 0.8 / Expiration 0.8 Differential Pressure (dP) in cm H2OInspiration 0.8 / Expiration 0.9 Differential Pressure (dP) in cm H2OInspiration 0.8 / Expiration 0.8 Differential Pressure (dP) in cm H2OInspiration 0.8 / Expiration 0.8 Differential Pressure (dP) in cm H2O
Resistance to Flow, 10 L/min flowInspiration 5.1 / Expiration 4.9 Differential Pressure (dP) in cm H2OInspiration 6.2 / Expiration NA Differential Pressure (dP) in cm H2OInspiration 1.9 / Expiration 3.0 Differential Pressure (dP) in cm H2OInspiration 2.3 / Expiration 2.9 Differential Pressure (dP) in cm H2OInspiration 1.5 / Expiration 1.2 Differential Pressure (dP) in cm H2OInspiration 1.8 / Expiration 1.2 Differential Pressure (dP) in cm H2OInspiration 1.8 / Expiration 1.5 Differential Pressure (dP) in cm H2OInspiration 1.7 / Expiration 1.5 Differential Pressure (dP) in cm H2OInspiration 1.0 / Expiration 1.2 Differential Pressure (dP) in cm H2OInspiration 0.9 / Expiration 0.9 Differential Pressure (dP) in cm H2OInspiration 0.9 / Expiration 1.0 Differential Pressure (dP) in cm H2OInspiration 1.0 / Expiration 1.1 Differential Pressure (dP) in cm H2OInspiration 1.1 / Expiration 0.9 Differential Pressure (dP) in cm H2OInspiration 0.9 / Expiration 0.9 Differential Pressure (dP) in cm H2O
Resistance to Flow, 20 L/min flowNANAInspiration 6.3 / Expiration 9.3 Differential Pressure (dP) in cm H2OInspiration 8.4 / Expiration 9.8 Differential Pressure (dP) in cm H2OInspiration 5.2 / Expiration 3.8 Differential Pressure (dP) in cm H2OInspiration 5.5 / Expiration 3.9 Differential Pressure (dP) in cm H2OInspiration 6.0 / Expiration 4.7 Differential Pressure (dP) in cm H2OInspiration 5.9 / Expiration 4.4 Differential Pressure (dP) in cm H2OInspiration 2.0 / Expiration 2.5 Differential Pressure (dP) in cm H2OInspiration 1.5 / Expiration 1.6 Differential Pressure (dP) in cm H2OInspiration 1.6 / Expiration 1.7 Differential Pressure (dP) in cm H2OInspiration 2.1 / Expiration 2.2 Differential Pressure (dP) in cm H2OInspiration 1.7 / Expiration 1.5 Differential Pressure (dP) in cm H2OInspiration 1.6 / Expiration 1.6 Differential Pressure (dP) in cm H2O
Resistance to Flow, 26 L/min flowNANANANAInspiration 9.1 / Expiration 6.2 Differential Pressure (dP) in cm H2OInspiration 9.0 / Expiration 6.1 Differential Pressure (dP) in cm H2OInspiration 9.7 / Expiration 7.4 Differential Pressure (dP) in cm H2OInspiration 9.3 / Expiration 7.0 Differential Pressure (dP) in cm H2OInspiration 2.7 / Expiration 3.4 Differential Pressure (dP) in cm H2OInspiration 1.8 / Expiration 2.1 Differential Pressure (dP) in cm H2OInspiration 2.0 / Expiration 2.2 Differential Pressure (dP) in cm H2OInspiration 2.8 / Expiration 2.9 Differential Pressure (dP) in cm H2OInspiration 2.1 / Expiration 1.8 Differential Pressure (dP) in cm H2OInspiration 2.1 / Expiration 2.0 Differential Pressure (dP) in cm H2O
Resistance to Flow, 4 L/min flowInspiration 1.2 / Expiration 1.4 Differential Pressure (dP) in cm H2OInspiration 1.6 / Expiration 4.0 Differential Pressure (dP) in cm H2OInspiration 0.8 / Expiration 1.0 Differential Pressure (dP) in cm H2OInspiration 0.8 / Expiration 0.9 Differential Pressure (dP) in cm H2OInspiration 0.6 / Expiration 0.6 Differential Pressure (dP) in cm H2OInspiration 0.8 / Expiration 0.6 Differential Pressure (dP) in cm H2OInspiration 0.7 / Expiration 0.6 Differential Pressure (dP) in cm H2OInspiration 0.8 / Expiration 0.7 Differential Pressure (dP) in cm H2OInspiration 0.6 / Expiration 0.7 Differential Pressure (dP) in cm H2OInspiration 0.6 / Expiration 0.6 Differential Pressure (dP) in cm H2OInspiration 0.6 / Expiration 0.6 Differential Pressure (dP) in cm H2OInspiration 0.5 / Expiration 0.6 Differential Pressure (dP) in cm H2OInspiration 0.6 / Expiration 0.6 Differential Pressure (dP) in cm H2OInspiration 0.6 / Expiration 0.6 Differential Pressure (dP) in cm H2O
Resistance to Flow, 6 L/min flowInspiration 2.0 / Expiration 2.3 Differential Pressure (dP) in cm H2OInspiration 2.8 / Expiration 6.2 Differential Pressure (dP) in cm H2OInspiration 1.0 / Expiration 1.5 Differential Pressure (dP) in cm H2OInspiration 1.2 / Expiration 1.4 Differential Pressure (dP) in cm H2OInspiration 0.8 / Expiration 0.7 Differential Pressure (dP) in cm H2OInspiration 1.0 / Expiration 0.7 Differential Pressure (dP) in cm H2OInspiration 1.0 / Expiration 0.8 Differential Pressure (dP) in cm H2OInspiration 1.0 / Expiration 0.9 Differential Pressure (dP) in cm H2OInspiration 0.8 / Expiration 0.8 Differential Pressure (dP) in cm H2OInspiration 0.7 / Expiration 0.7 Differential Pressure (dP) in cm H2OInspiration 0.7 / Expiration 0.7 Differential Pressure (dP) in cm H2OInspiration 0.6 / Expiration 0.8 Differential Pressure (dP) in cm H2OInspiration 0.7 / Expiration 0.7 Differential Pressure (dP) in cm H2OInspiration 0.7 / Expiration 0.7 Differential Pressure (dP) in cm H2O
ShapeTTTTYYYYTTTYYY
Valve SizeMiniatureMiniatureMiniatureMiniatureMiniatureMiniatureMiniatureMiniatureExtra SmallExtra SmallExtra SmallExtra SmallExtra SmallExtra Small