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BCD Oral Power Inflator Unit - 90 Degree Angled Mouthpiece

Trident Diving Equipment


This Oral Power Inflator with Standard 90-Degree Angled Mouthpiece can be used as a complete power inflator replacement unit on many brands of BCDs and Wings.

This a replacement Standard-style, 90-degree, Oral and Power Inflator incorporating the standard BC quick disconnect post compatible with the slide-lock Schrader Valve fitting found on ordinary low pressure BC inflator hoses. This widely used oral power inflator fits the 1-inch (25 mm) inside diameter corrugated rubber hose found on most technical BC aircells including those from Dive Rite, Halcyon, Highland, HOG, Hollis, IST Dolphin, Light Monkey, OMS, OxyCheq, White Arrow and many other brands.

Includes a removable rubber mouth guard and the pin for a pull-to-dump cable. Push the button on the end to deflate or orally inflate the BC via the mouthpiece. Push the other button for power inflation via the low pressure BC hose. Push both buttons simultaneously to dump gas out the mouthpiece directly from the low-pressure hose, a neat trick allowing you to leave your second stage in your mouth while still inflating a lift bag or SMB.

Having a spare power inflator unit as a Technical Diver is routine. This oral power inflator unit with standard 90-degree mouthpiece can get you out of a jam if you find a problem with the one attached to your BCD.

BCD Oral Power Inflator Unit with 90 Degree Angled Mouthpiece Features

  • Fits most brands of BC's using standard inflation hoses, including OMS and Hollis
  • Great Item for Save-A-Dive Kit
  • Standard Mouthpiece for Easier Inflation
  • 1 inch (25 mm) outside diameter
  • Fits 1 inch (25 mm) inside diameter corrugated oral inflation hose
  • The attaching hardware (clamps or zip ties) is not included

This product does not include attaching hardware (i.e. zip ties or clamps) that secure the product to your corrugated hose. The attaching hardware is available separately.

Technical Tip

Quick-Disconnect Compatibility and Lack Thereof

Divers are sometimes surprised to learn there is NO universal standard that defines the precise shape and exact dimensions of the common Schrader valve quick-disconnect (QD) fittings found on power inflators and low-pressure inflation hoses used in SCUBA. This can cause compatibility issues with the connection: the fittings will not securely connect and can self-disconnect without any overt user action; the fittings will securely connect but gas will not flow; the fittings will connect but will exhibit slow leaks. There is the further complication that the common Schrader valve QD fittings are not suitable for high-flow, so QD fittings found on BC integrated second-stages use something else entirely.

The Schrader male posts can be broadly divided in to two categories: a more widely seen post with a shorter barrel and a raised bridge across the top, or a much less common post with a slightly longer barrel and a flat top. In our experience, the flat top post seems more likely to be encountered in the UK and to a lesser extent in Europe; it's almost never seen in Australia, North America or Asia.

Hoses designed to fit one category of post are less likely to be compatible with the other. However, even within the bridge top post design we have encountered occasional incompatibilities, usually when there is many years difference in age between the male and female fittings.

We have seen problems caused by the Schrader valve core becoming partially unseated (or not properly seated during initial assembly) inside the female hose fitting; that's corrected by using a Schrader Valve Tool to tighten the core back in place. We've also seen slow leaks resolved by replacing the worn 011 O-ring located inside the barrel of the female hose fitting, although replacing that O-ring in the QD is challenging to do without a QD O-ring insertion tool and most consumers just replace the entire hose.

The good news is these incompatibilities are very rare; all the low-pressure BC hoses we sell are compatible with the Schrader valve post found on our replacement power inflator as well as the inflators on all the wings we sell. If you are concerned about compatibility, the best strategy might be to replace the power inflator and hose simultaneously from the same source. Keep in mind that if your BC hose is more than five years old, best practice is to replace it anyway.

Most authorised dealers are able to perform warranty, repair and service work on your equipment. Availability of sub-assemblies and components, repair parts, specialised tools and maintenance manuals does not imply qualification to assemble and/or service scuba equipment. Service by other than an authorised dealer voids the warranty on all products we sell. Improper service of dive equipment can lead to serious injury or death.

The Scuba Doctor recommends that divers participating in more advanced technical and exploration type diving be trained in equipment service. We recommend that non-qualified individuals seek professional training/mentoring before attempting repairs or servicing on any diving equipment.

(04/22 AJG)

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