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Divator, purge button, single item (also: see 5 pack, 336190 487)

  • The purge button is used to purge the system after diving is completed and to evacuate any water from the mouthpiece or mask, during start-up in the water.
  • Exploded diagram of the parts in the diaphragm housing of the breathing valve.
  • Carefully removing the diaphragm assembly, from the diaphragm housing..it should be replaced after testing the security of the Purge button, exactly as shown: the nylon diaphragm plate locating on to the guide pin plate and the spring between them. The diaphragm assembly then 'clicks' back in to place, in the (bell) housing, or cover.
£19.20 (inc VAT) £16.00 (exc VAT)
0.10 KGS
Calculated at checkout
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Product Description

Purge, or drain button, to fit Divator breathing valves (336190349/ 336190348/ 336190345/ 336190347) mouth-held and mask versions; with and without positive pressure.

The purge button is used for relieving pressure, when closing down 'negative' (Ambient) pressure SCUBA and for clearing the mask when underwater.

It manually operates the demand lever, causing air to flow through the breathing valve, or mask; at rates not exceeding 2 litres per second and at relative pressure below 45 cm Water column (the safe limit designated (ISO) for airway pressures used for resuscitation, for example). The mechanism is therefore very reliable and safe.

The button may be fitted by users, ensuring that the button moulded is properly secured  in the keyway, which accepts the rubber moulding on to the demand valve housing.

When fitted, test the security, pressing gently with a finger, FROM THE INSIDE of the housing, to make sure it does not detach.  It is first necessary to remove the demand valve housing attachement from the breathing valve body and to carefully remove both the diaphragm sub assembly, which is replaced after fitting.

See image 3, for service instruction excerpt on how to do this.

Please inquire, if uncertain how to do this. Aways function test your re-assembly of components, prior to putting the item back in to service.

Warranty Information

12 months

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