Which Flexible gas hose?

creation mark

Having a bit of an argument with another plumber and thought id ask some of you for your two cents, I've to replace two 1000mm natural gas hoses on two appliances in a commercial premises, i've opted to use two Dormont hoses ,the yellow pvc coated ones but he's arguing that the Advantica black rubber hoses will do. The Dormont have a fusible link in case there's a fire and the restraining chain as standard, granted they're nearly triple the price (part of the argument),are the black rubber advantica hoses suitable for commercial use? I've scouted through my IS 813 and can't find anything,(it's probably looking at me) but i can't find what im looking for. Ref to BS 6172 is all i can find...any feedback would be appreciated.

Mark

IS 813 is for domestic, I would swap same for same where practicable, I would use the Dormont hose as that is the type i'v seen most on commercial installations, you could always ring Advantica for clarification or your local RGI inspector:pac::pac::pac: but tea leaves might be more forthcoming:D

Billy Bunting

gary71 wrote: »

but tea leaves might be more forthcoming:D

We call ours Gypsy Paul.

shane0007

Commercial gas training/certification is under development as we speak in Ireland. In answer to your specific query, as long as the hose meets BS-669-2, IS EN14800 or IS EN1762, the hose is acceptable for use in a commercial catering installation. Stainless steel hoses covered in a protective coating is preferable and most common. There are two types of coating used, Polyolefin and PVC. Polyolefin is a shrink sleeve and can deteriorate in the working environment of a commercial kitchen. This can lead dirt entrapment which can ultimately attack the surface of the hose.
PVC dip coated hoses are preferable and provides a thicker and more durable coating and is more suitable to the conditions experienced in a commercial kitchen environment.

JohnnieK

Any commercial kitchens I have ever done the Dormont type were specified.

creation mark

Excellent stuff guys, thank you for the replies, I was going with the Dormont hoses but needed to have a bit of closure haha. Big difference in the prices alright, €15 for the Advantica & around €50 for the Dormont, horses for courses obviously, i'd rather be safe than sorry. Thanks again,

Mark.

heated

Not much clarity in IS820 either (see below) but as always err on the side of caution. €35 difference is a small price to pay for safety and piece of mind.

[FONT=Arial,Bold][FONT=Arial,Bold]
5.13 Flexible appliance connectors[/FONT][/FONT][FONT=Arial,Bold][FONT=Arial,Bold]5.13.1[/FONT][/FONT][FONT=Arial,Bold]
[/FONT]For requirements relating to flexible connectors for domestic type appliances, reference shall be made to I.S. 813.
[FONT=Arial,Bold][FONT=Arial,Bold]
5.13.2
[/FONT][/FONT][FONT=Arial,Bold][FONT=Arial,Bold]
[/FONT][/FONT]Flexible appliance connectors shall have permanently fitted end fittings and shall be constructed to a

recognised standard appropriate to their application.

This requirement does not apply to flexible connectors used for low gas rate appliances in laboratories or

educational establishments, for example bunsen burners, see annex J.
[FONT=Arial,Bold][FONT=Arial,Bold]5.13.3
[/FONT][/FONT][FONT=Arial,Bold][FONT=Arial,Bold]
[/FONT][/FONT]Where an end fitting is designed to permit quick connection and disconnection of the flexible appliance

connector, this fitting shall be self-sealing and shall prevent the release of gas from the upstream pipework. This

fitting shall be designed to prevent accidental disconnection and incorrect assembly.

JohnnieK

heated wrote: »

Not much clarity in IS820 either (see below) but as always err on the side of caution. €35 difference is a small price to pay for safety and piece of mind.

[FONT=Arial,Bold][FONT=Arial,Bold]
5.13 Flexible appliance connectors[/FONT][/FONT][FONT=Arial,Bold][FONT=Arial,Bold]5.13.1[/FONT][/FONT][FONT=Arial,Bold]
[/FONT]For requirements relating to flexible connectors for domestic type appliances, reference shall be made to I.S. 813.
[FONT=Arial,Bold][FONT=Arial,Bold]
5.13.2
[/FONT][/FONT][FONT=Arial,Bold][FONT=Arial,Bold]
[/FONT][/FONT]Flexible appliance connectors shall have permanently fitted end fittings and shall be constructed to a

recognised standard appropriate to their application.

This requirement does not apply to flexible connectors used for low gas rate appliances in laboratories or

educational establishments, for example bunsen burners, see annex J.
[FONT=Arial,Bold][FONT=Arial,Bold]5.13.3
[/FONT][/FONT][FONT=Arial,Bold][FONT=Arial,Bold]
[/FONT][/FONT]Where an end fitting is designed to permit quick connection and disconnection of the flexible appliance

connector, this fitting shall be self-sealing and shall prevent the release of gas from the upstream pipework. This

fitting shall be designed to prevent accidental disconnection and incorrect assembly.

I see there's the same amount of holes in the is820 as there is in the is813;)