Positive Isolation - Blinds 2

[mechatronic]

Hi,

We have a tank farm where aviation turbine fuel ( ATF) or jet fuel is stored in the refinery.

"Hammer blinds'are being used for positive isolation which will isolate the tanks from the system so that contamination of the product is prevented.

Operators of the blinds complain that they find it very difficult to operate ( Physically removing the blinds has resulted back injury) and change the position of the blind each time it is required for On off operations.

In order to bring the positive isolation , motorised valves were thought of but it was not approved due to various reasons.

Can any one suggest , what is the alternative to implement positive isolation , where positive isolation is possible without HSE prolems

Regards,

mechatronic

 

[PRICARD]

Hello,
You can have a look at this website

http://www.onislineblind.com

this company manufactures quick action lineblind (manual, gearbox and automated) which are used in oil, gas, and chemical environment.
I am sure that their product will fit.

Regards,
Phil

 

[mechatronic]

Pricard, Thanks a lot

At the moment I am examining following alternatives

1. Conventional Double block and bleed arrangement
2. Twin design - as suggested by CRG as per above
3. Twin taper plug DBBs - as suggested by Jimcasey
4. And your suggestion .

We will see what is easy and cost effective and acceptable Techncially to our process guys

Thanks once again and am happy to get lots of responses and ideas !!