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VALVES

Q: What threads are on the 6000 needle valve and 6005 shut off valve?

A: These valves have ¼” BSP female threads as standard. You will need an O-ring or washer to seal.

Q: Can you use the 6000 needle valve and 6005 shut off valve with oxygen?

A: The standard 6000 needle valve and 6005 shut off valve CANNOT be used with oxygen.  Our 6000-OX needle valve is compatible with the use of oxygen.

Q: I have owned my valve for a long time, and it doesn’t work as well as it used to.

A: We offer service kits for many of our valves.  We also provide breakdown diagrams that will help you service your valves, you can view these by clicking here or visit our website homepage anytime to download.

Q: Can I use 5100 non return valve and 5105 non return valve with oxygen?

A: Yes, these valves are supplied cleaned and ready to use with oxygen or mixed gases. Once used with air these values MUST be re-cleaned before use with oxygen to prevent contamination from non O2 clean air.

HOSE ASSEMBLIES

Q: What lengths do your hoses come in?

A: The hoses listed on our website are the most common, we are able to supply hoses at any length required. Please contact us for a quotation for your customised hose.

Q: What threads are fitted on your hoses?

A: As standard, ¼” BSP (GAS) females are fitted. We are able to fit whatever is required, providing the hose inserts are available. Please contact us for a quotation for your customised hose.

ADAPTORS

Q: What material are your adaptors made from?

A: Our adaptors are made from brass and are then chrome plated. Brass is used as it has a high corrosion resistance and once chrome plated it becomes ideal for working in extreme/sea conditions.

Q: I am not sure of what threads I require?

A: All regulators, compressors and cylinders have different threads so please do not assume that all fittings and adaptors are the same. If you are not sure, please send images complete with a description of your requirements so we can assist on identifying and supplying you with the correct components; you can find our contact details here or email us at info@undersea-centre.com

Q: How will my adaptor seal?

A: All our adaptors come with O-rings where required. Our DIN adaptors DO NOT come complete with O-rings as these need to be screwed directly onto our hoses/whips.

Q: What size O-ring is used for ¼” BSP male?

A: The O-ring used is 10X2mm. All of our adaptor come supplied with O-rings.

Q: What is the pressure rating of your 0460 bleed screw and 0459 bleed screw?

A: The 0460 bleed screw can be used up to 232bar ONLY. Above 232bar, you must use the 0459 bleed screw.

Q: What DIN adaptor do I need?

A: This is dependent on which country you are diving in. Certain Din adaptors are typically used in certain countries.  Please note: 10x2mm O-rings are sold separately for all DIN adaptors.  Please contact us if you're unsure, we'll be happy to assist you on idenifying and supplying with the correct components. 

Q: What size O-ring is used for ¼” BSP male?

A: The O-ring used is 10X2mm.

Please note: 10x2mm O-rings are sold separately for all DIN adaptors.

Q: 1220 UK Bullnose

A: Just like a 540 industrial oxygen tank regulator in the US, the bullnose is a standardised connection for industrial oxygen tanks in the UK and Australia. Bullnose tanks and regulators are standardised not only in the UK but in many counties and regions around the globe.

Here is a list of countries that use the Bullnose valve.

AFRICA: Liberia, Libya, Nigeria, South Africa (for larger tanks)

ASIA: Hong Kong, India, Indonesia, Malaysia, Maldvies, Thailand (with some exceptions), Vietnam

MIDDLE EAST: Iraq, Jordan, Kuwait, Pakistan, Saudi Arabia, United Arab Emirates, Yemen

OCEANIA: Australia, Fiji & Tonga, New Zealand, Pupua New Guinea

Q: 1221 Euro Bullnose

A: This regulator and tank valve fitting are the NFE 29-656, also known as the AFNOR. AFNOR stands for the French national organization for standards. These regulator and tank valves are very common in France and Spain as well as many other countries.

Please see the list below.

AFRICA: Algeria, Angola, Maroc, Mozambique, Seychelles, Syria

CHINA: Formosa (SMS 690 can also be found)

EUROPE: Belgium, France, Greece (SMS 690 can also be found), Netherlands (on larger cylinders), Portugal, Spain, Tunisia,

MIDDLE EAST: Lebanon

FITTINGS

Q: What are our re-usable hose fitting used for?

A: These reusable fittings are used for the inter stage hoses. The threads that are available are 9/16” FEMALE, 3/8” UNF MALE, ¼” BSP MALE and ¼” NPT MALE, they are CNC-machined using brass and are then chrome plated. Brass is used as it has a high corrosion resistance and once chrome plated it becomes ideal for working in extreme/sea conditions.

Q: Can fit the 9/16” FEMALE (5046-ABC) without using Undersea Centre 5048 assembly tool?

A: No, this is due to the swivel female nut. When you screw the tool into the female hose insert, this locks off the nut and allows you to screw the fitting into the ferrule.

REGULATORS & ACCESSORIES

Q: Can you use the 7000 series regulators with oxygen?

A: No, you must use the 7010 series regulators. The dimensions and specs are exactly the same as the 7000 series but for the use with oxygen.

Q: What are the specifications of your regulators?

A: All specifications, flow charts and exploded drawings are available from our website homepage or click here.

Q: Can I service my 7000/7010/7025 regulator?

A: Yes, service kits are available for all of these pressure regulators.

MANIFOLD BLOCKS & BARS

Q: How many ports do the 2 different manifold bars have?

A: Our 1231 manifold bar has 7 ports and all are ¼” BSP fixed female threads. Our 1232 manifold bar has 10 ports and all are ¼” BSP fixed female threads.

Q: Is the 1231 manifold bar able to be panel mounted?

A: No, the 1232 manifold bar is our panel mountable.

GAUGES

Q: Can your 5090 oil filled gauge and 5091 dry gauge be used with O2?

A: Our 5090 oil filled gauge is glycerine filled so should be used with air. Our 5091 dry gauge is a “dry” gauge which means it isn’t glycerine filled so it can be used with O2.

Q: Is your DPM-300 digital gauge waterproof?

A: No, please be careful when using this particular gauge.

Q: What unit of measurement is displayed on your DPM-300 digital gauge?

A: You can user switch between PSI, BAR, KG/CM2 or MPA.

AIR CARE & TESTING

Q: What tubes can I use in your 5700 air care kits?

A: You can only use the KITAGAWA tubes with our kits. All other manufacturers tubes are NOT compatible.

Q: What contaminants can I test for with your 5700 air care?

A: You can test for CO2, CO, OIL MIST and water vapour.

Q: What is the inlet pressure of the 5700 air care regulator?

A: Minimum of 9 BAR and the maximum of 232 BAR.

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