WEH GmbH Verbindungstechnik

WEH® Dive Connector

Fill diving cylinders.
Simple. Fast. Safe.

Nitrox compatible
Nitrox compatible
Nitrox compatible

Filling diving cylinders – easier than ever.

Anyone who regularly fills diving cylinders knows this: threaded adapters are inconvenient, time-consuming, and tiring — particularly in continuous use. The WEH® Dive Connector puts an end to that.

It was specifically developed for the diving industry — for fast, ergonomic, and safe filling of diving cylinders, even under demanding conditions.

On the coast, on a boat, or at the filling station — this quick connector works wherever you need it.

Screwing is a thing of the past.

Just click with the WEH® Dive Connector

Your benefits — noticeable with every fill

Save time with every move:

Connected in under 5 seconds — no screwing required

Intuitive operation:

Plug in, flip the lever — done. No tools. No force.

Reliability you can trust:

Saltwater-resistant and made from oxygen-compatible materials.

Built for tough everyday use:

Durable even under high workloads and frequent cylinder changes.

Integrated safety features:

Locking under pressure is prevented by an integrated safety mechanism.

Engineering with experience:

Based on the proven WEH® Jaw Locking Mechanism — trusted by fire departments and the military for over 50 years.

See the difference: efficiency that pays off

Feature

Conventional threaded connection

WEH Dive Connector

Connection time

30 - 60 seconds

< 5 seconds

Ergonomics

Physically demanding to screw on

Click & done

Material durability

Corrosion-resistant

Corrosion-resistant

Safety under pressure

Screwed on

Safety via pressure-controlled locking pin

Maintenance

Device can be serviced by the user

Device can be serviced by the user

Connection time

Conventional threaded connection

30 - 60 seconds

WEH Dive Connector

< 5 seconds

Ergonomics

Conventional threaded connection

Physically demanding to screw on

WEH Dive Connector

Click & done

Material durability

Conventional threaded connection

Corrosion-resistant

WEH Dive Connector

Corrosion-resistant

Safety under pressure

Conventional threaded connection

Screwed on

WEH Dive Connector

Safety via pressure-controlled locking pin

Maintenance

Conventional threaded connection

Device can be serviced by the user

WEH Dive Connector

Device can be serviced by the user

Technical data

Characteristics

Basic version

Technical nominal size (TNW)

4 mm

Max. allowable operating pressure

PS = 250 bar

Temperature range

+5°C to +60°C

Medium

Breathing air / Enriched Air / Nitrox
The use of Enriched Air / Nitrox up to 40% oxygen is only permitted within the framework of the relevant legal regulations

Connection A
(cylinder valve)

G5/8" female thread
(DIN 477 / DIN EN ISO 12209)

Inlet B1

Connection connector depending on connection for filling hose

Part materials

Wear-resistant stainless steel, brass

Sealing material

EPDM

Actuation

Manual actuation via rope safety device

Quick connector for filling diving cylinders

Whether for new installations or retrofits, the WEH® Dive Connector adapts to your filling station. Matching accessories and spare parts are supplied directly — everything from a single source.

WEH® Dive Connector

Never screw again — connect fast

The WEH® Dive Connector is the perfect addition to your breathing air compressor. It enables connection to the cylinder thread in under 5 seconds.
An integrated safety mechanism prevents locking under pressure, while a safety lanyard provides additional protection.

Operation? As simple as it is intuitive:
Insert the adapter loosely into the cylinder valve. As soon as the seal engages noticeably, flip the operating lever — done.
After the filling process, a brief upward pull is all it takes to remove the quick connector effortlessly.

 

Accessories & spare parts

Matching components — so everything fits together perfectly.

  • Filling hose: UNIMAM connection, length 1.5 m, technical nominal size (TNW) 5 mm, incl. TÜV certificate, 425 bar, M16×1.5 female thread (other lengths available on request).
  • Connection nipple: with Bauer UNIMAM connection.
  • Connection adapter: for connection to the filling hose, M16×1.5 male thread, O-ring, 60° internal cone.
  • Front seal (spare part)

What users say about the WEH® Dive Connector

Downloads

Operating instructions

WEH® Dive Connector

Would you like to be among the first to fill diving cylinders faster, safer, and more easily?

Then send us a non-binding order inquiry — we’ll get back to you personally.

Any questions? We’re here for you.

The images shown are for illustrative purposes only and may differ from the actual product in certain details. The specific form and design of the product are defined exclusively by the individual order.