Shop by Category

banner banner

San-O-Sub Rebreather X Flow Inline Cylinder Valve (300 bar)

SL XFLOWV12 12/22
Sterling Leisure


The San-O-Sub T profile 300 bar X Flow valve is specifically designed to be used with Rebreather cylinders where compactness, low profile and accessibility to the handwheel are important. This inline valve can be used on the Dilutent and Oxygen cylinder and is constructed of chrome-plated aircraft brass with Oxygen service components.

For used on any rebreather that requires inline cylinder valves, including the rEvo, Evolution, Inspiration, Prism, and Titan.

The valve has the longer 300 bar, female DIN connection with 7 threads to connect your first stage DIN scuba regulator.

The valve has a standard 3/4-inchx14 NPSM (NGS) parallel thread to fit the cylinder neck thread of most Australian Standard aluminium and steel tanks/cylinders/bottles. It has a 60° thread form, a pitch diameter of 0.9820 to 0.9873 in (24.94 to 25.08 mm), and a pitch of 14 threads per inch (5.5 threads per cm).

WARNING: Please ensure that you are fitting the valve to a cylinder with a matching thread. Getting it wrong is extremely dangerous.

The valve comes Oxygen Clean. The valve is constructed of rugged brass with chrome-plated finish for durability, plus Oxygen compatible components and lubricants.

All valves are manufactured using certified CW 617 N pressed brass. The valves are precision cut using the latest CNC technologies and then protected with nickel and chrome platings, and then assembled and quality controlled with special calibration equipment by expert staff. The valves are CE EN250 and PED CE 97/23 approved and come with all necessary declarations. All the valves include seals and are assembled compatible oxygen lubricants.

San-O-Sub Rebreather X Flow Inline Cylinder Valve 300 bar Features:

  • Standard 300 bar Female DIN Connection with 7 Threads
  • High-Flow Characteristics to Maximise Regulator Performance
  • Easy-and-Comfortable Cylinder Handling
  • Positive Hand Wheel Grip for Easy-Identification of On/Off Direction
  • Proven and Readily Available Replacement Valve Parts
  • Approved Burst Disc Assembly with Integrated-Disc and Plug Design
  • Multi Ported Burst Disc Plug for Added Safety
  • Durable Corrosion Resistant Marine Grade Chrome Plated Brass
  • Heavy-Duty Valve Mechanism: Designed for Smooth-Operation
  • Standard 3/4"x14 NPSM Threaded Cylinder to Valve Inlet
  • High-Capacity Dip Tube
  • Nitrox Ready up to 100%
  • Oxygen Compatible Components
  • Oxygen Lubricants
  • Tested to Exceed Real World Expectations
  • Made in Italy

Valve Handwheel/Knob/Handle Colour: Black or Green.
Use the Black hand-wheel to denote DILUENT side.
Use the Green hand-wheel to denote OXYGEN side.

Tech Tip

Regulator Fittings and Scuba Valves

The Deutsches Institut Für Normung (DIN) is a German standards setting organisation. DIN 477 is a specification that recommends cylinder valve outlet and connector designs for specific types of gases and pressures based upon safety considerations. These various designs have deliberate incompatibilities to preclude the possibility of errors when handling different types of compressed gases at differing working pressures. The two valve outlets and connectors of interest for divers are the DIN 477 No. 13 and the DIN 477 No. 56 (formerly No. 50), both designated for use with compressed air.

The DIN 477 scuba valve outlet and regulator fittings are now the standard in Europe and are widely used by technical divers worldwide. Their thread form is also sometimes referred to as G 5/8" BSP. The regulator first stage DIN connector is a male screw type, and instead of clamping onto the outside of the valve as does the yoke, it screws directly into the female DIN outlet of the valve. The sealing O-ring is held at the end of the regulator connector rather than in the face of the outlet. The DIN 477 system, with its captured O-ring design, has proven to be very reliable for use with scuba gear.

Outlet/Connector #13 is from DIN 477 part 1, for cylinders with test pressure ratings up to 300 bar, and is commonly referred to in the dive industry by the slang term "200 bar", because most European and Australian dive cylinders with 300 bar test pressures have working pressures in the 200 bar range. The shorter 200 bar DIN connections have 5 threads.

Outlet/Connector #56 is from DIN 477 part 5, for cylinders with test pressure ratings up to 450 bar, and is commonly referred to in the dive industry by the slang term "300 bar", because most European and Australian dive cylinders with 450 bar test pressures have working pressures in the 300 bar range. The longer 300 bar DIN connections have 7 threads.

The two designs are nearly identical, but the 300 bar, #56 valve outlet is deliberately deeper with 7 threads so the shorter 200 bar, #13 connector with 5 threads will not be long enough to seat properly. This is a safety feature to prevent connecting a low-pressure device to a high-pressure supply. It's important to understand that the "200 bar" or "300 bar" descriptions are just slang terms that have nothing to do with the pressure ratings of the outlets and connectors themselves!

(22/22 HS)

The Scuba Doctor Dive Shop Logo
Connect with us on Facebook - scubadoctor  View our YouTube Channel - ScubaDoctorRye  Follow us on Instagram  View us on Pinterest - scubadoctor  Follow us on Twitter - @scubadoctor
The Scuba Doctor Australia
Boon Wurrung Country
1/49 Peninsula Ave
Rye Victoria 3941, Australia
Commonwealth Coat of Arms
We accept Purchase Orders from Government Departments & Schools
P +613 5985 1700
Opening Hours
Shop by Category
Copyright © 2005-2024 by The Scuba Doctor Australia, ABN 88 116 755 170. All rights reserved. tel. +61 3 5985 1700 :: email. :: Web site by it'sTechnical 2022