Douglas Bag Parts & Accessories

Douglas Bag Parts & Accessories

Nose clips and mouthpieces are included in the Douglas bag sets, but are also available individually. Spring clips and plugs can also be purchased separately.

Please see the Item Listing and Full Description for information about Douglas Bag accessories.

Item# Description U.S. List Price Quantity
50-0967 Nose Clip
50-0959 Mouthpiece
50-1114 Douglas Bag Tubing Adapter, 30 to 22 mm
50-0975 Douglas Bag One-Way Air Valve
50-1023 Single Channel Tubing Valve
50-1031 Change-Over Tubing Valve
50-1049 Double Channel Tubing Valve
50-7699 Spring Clip
50-7624 Replacement Plug
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Nose clips and mouthpieces are included in the Douglas bag sets, but are also available individually. Spring clips and plugs can also be purchased separately.

50-1114 Tubing Adapter
This adapter connects 22 mm and 30 mm bore tubing so that components of old and new Douglas Bags can be used together.

50-0975 One-Way Air-Valve
The One-Way Air Valve is controlled by inspiration and expiration; one valve opens and the other closes on inspiration, and vice versa on expiration. The gas stream can flow in only one direction. The Valves consist of thin mica discs mounted in a cast plastic frame. The mica disc is held in the center of the frame by a nickel-plated brass threaded shank that has a soft stainless steel spring mounted on it. The mica disc moves against this soft spring and opens with the slightest positive pressure. The hose connectors are made of tapered plastic and have a groove at the top. A 50-1015 Sealing Ring seats in this groove and effectively locks and seals the Tubing to the Valve.

50-1023, 50-1031, 50-1029 Tubing Valves
These Tubing Valves have two 115 mm (4-1/2 in) diameter, aluminum alloy sections held against each other by a bolt with a heavy spring. A thick polythene washer between the valve sections makes their junction gas-tight and provides an appropriate surface on which they can rotate. The desired connections can be made by rotating the valve sections against each other to the stops provided.

There are three types available:

  • Single Channel
  • Change-Over
  • Double Channel
  • All three valve types allow the subject to be connected to the atmosphere while they regulates their breathing. By rotating the aluminum alloy sections, the single channel valve provides a direct connection to a single Douglas bag. The change-over valve allows a direct connection to either Douglas bag A or Douglas bag B. The double channel valve provides a closed circuit so that the subject’s inspiratory tube is connec

    These Tubing Valves have two 115 mm (4-1/2 in) diameter, aluminum alloy sections held against each other by a bolt with a heavy spring. A thick polythene washer between the valve sections makes their junction gas-tight and provides an appropriate surface on which they can rotate. The desired connections can be made by rotating the valve sections against each other to the stops provided.

     

    Specifications50-102350-103150-1049
    OD (inches)4-1/2 in4-1/2 in4-1/2 in
    OD (mm)115 mm115 mm115 mm