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Cougar Engineering Services
Bird & Tole Air Sampling Products
BTS158 Filter Holder (click for photo/s)
BTS490 Filter Card Holder (click for photo/s)
BTS495 Maypack (click for photo/s)
BTS174 PAS
Filter Holders
The BTS 309 series of filter holder is designed to accept the Bird & Tole Card Mounted Filter so that the filter disk may be handled without touching the sampling area. Records of the sampling may be written on the card if so desired.
Salient points of the BTS 309 Filter Holder
  
·         The card may be inserted and withdrawn from the filter holder without disconnecting
           the vacuum line.
·         The Filter Holder may be hard plumbed in any sampling line. The unit will seal without a card in
           position so it therefore can be left in the line until required.
·         The standard fitting on the up-stream end is a 1” BSP parallel thread for connection to a
           standard valve. Other end fittings can be produced to order (see photo SP)
·         The Filter Holder can be used as an open fronted unit if required.
·         The BTS 309 Filter Holder can be manufactured in either lightweight aluminium alloy or robust
          stainless steel.

NEW: The BTS309 Filter Holder can now be supplied to house the standard type SAS filter card. Order code is shown below.

Ordering code:

BTS309 - In-Line Filter Holder for B&T cards
BTS309 SAS - In-Line Filter Holder for S.A.S. cards

NB: Please specify SS at the end of the order code if Stainless Steel is preferred

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