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1 Inch BSP Outlet Fitting


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BESKAN Ben

Evening Guys

 

Sorry for sounding extremely thick here but I have just bought a 400 Litre tank which has a  1 inch BSP outlet fitting. Where do I get this fitting from so that I can attach to a hose to the pump? I just keep seeing the 3/4 inch ones. Any links or pointers in the right direction would be greatly appreciated. Cheers 👍

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11 minutes ago, BESKAN Ben said:

Evening Guys

 

Sorry for sounding extremely thick here but I have just bought a 400 Litre tank which has a  1 inch BSP outlet fitting. Where do I get this fitting from so that I can attach to a hose to the pump? I just keep seeing the 3/4 inch ones. Any links or pointers in the right direction would be greatly appreciated. Cheers 👍

You need a reducer try a plumbing or pump specialist 

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1 hour ago, BESKAN Ben said:

Evening Guys

 

Sorry for sounding extremely thick here but I have just bought a 400 Litre tank which has a  1 inch BSP outlet fitting. Where do I get this fitting from so that I can attach to a hose to the pump? I just keep seeing the 3/4 inch ones. Any links or pointers in the right direction would be greatly appreciated. Cheers 👍

get your outlet bush from Toolstation.

Then run 3/4" elbow to a hose barb tail 

 

https://www.toolstation.com/brass-hexagon-bush/p42593

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Alaways put a tap in first so you can isolate your tank in case you need to do maintenance work in the future. 

  • Agree 2
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16 hours ago, spruce said:

I have this one and it's really good quality, I did use Ptfe tape when I fitted the tank myself but when I went to PF to have a frame etc fitted they used some green stuff on the thread it look wrapped around like ptfe, I think it may have been something like this HEMP PIPE THREAD PACKER & SEALER

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7 hours ago, doug atkinson said:

It has to be a BSP thread if it’s tapered will crack the internal thread. We do a range but if you are looking for BSP reducer Screwfix do one but be careful I was supplied with a tapered one https://www.daqua.co.uk/baffled_upright_tanks.htm

Yes it is worth making sure the female reducer is parallel thread. Try it on a male thread both ways. You won’t have any problems however putting a tapered male (BSPT) in a parallel female (BSPP). 

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doug atkinson
1 hour ago, Stevieboy said:

Yes it is worth making sure the female reducer is parallel thread. Try it on a male thread both ways. You won’t have any problems however putting a tapered male (BSPT) in a parallel female (BSPP). 

The tank thread is BSP and big warning sign on tank NOT TO USE BSPT. If it was BSPP no problems.

The issue you will find using a BSPT it may not crack the thread first time but during time you will start seeing a leak which quite a few people unfortunately have found out.

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4 minutes ago, doug atkinson said:

The tank thread is BSP and big warning sign on tank NOT TO USE BSPT. If it was BSPP no problems.

The issue you will find using a BSPT it may not crack the thread first time but during time you will start seeing a leak which quite a few people unfortunately have found out.

The o/d of any BSPT male fitting is always very fractionally smaller than its BSP P male equipment. So don’t think it’s a size issue  more like a sealing issue. . 

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doug atkinson
9 minutes ago, Stevieboy said:

The o/d of any BSPT male fitting is always very fractionally smaller than its BSP P male equipment. So don’t think it’s a size issue  more like a sealing issue. . 

If you screw in a BSPTM into BSPF it will not go in fully as the tread at the back is slightly higher than the front. With tapered the thread is at a slight uphill angle. BSP thread is straight. The thread on the tank is think metal so that is why it cracks

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55 minutes ago, doug atkinson said:

If you screw in a BSPTM into BSPF it will not go in fully as the tread at the back is slightly higher than the front. With tapered the thread is at a slight uphill angle. BSP thread is straight. The thread on the tank is think metal so that is why it cracks

The thread at the back is higher than the front hence the taper but the max O/D of that thread is slightly smaller than the max o/d of a parallel fitting. The Angle of the thread is 60 degrees from memory the same as tapered or parallel. 

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1 hour ago, doug atkinson said:

The tank thread is BSP and big warning sign on tank NOT TO USE BSPT. If it was BSPP no problems.

The issue you will find using a BSPT it may not crack the thread first time but during time you will start seeing a leak which quite a few people unfortunately have found out.

My Wyedale tank just says USE BSP FITTINGS.  Think this is just stating the type of thread. It dosent say NOT TO USE BSPT on any Wyedale tank I’ve seen. Are you sure it says that or have you misinterpreted  it??

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2 hours ago, Stevieboy said:

My Wyedale tank just says USE BSP FITTINGS.  Think this is just stating the type of thread. It dosent say NOT TO USE BSPT on any Wyedale tank I’ve seen. Are you sure it says that or have you misinterpreted  it??

I think what Doug was saying that its easy to over tighten a BSPT fitting and crack the metal insert. BSP is the correct fitting also sometimes called a BSPP fitting to differentiate between parallel thread and taper thread.

Personally I haven't bought a Wydale tank in years so I don't know what the warning sticker says now. I remember it just saying BSP, but then I know the difference between BSPP and BSPT. Some windies may not.

I guess its like telling a McDonald's customer that the contents of his coffee cup are hot. Some may not realise this. 😂

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31 minutes ago, spruce said:

I think what Doug was saying that its easy to over tighten a BSPT fitting and crack the metal insert. BSP is the correct fitting also sometimes called a BSPP fitting to differentiate between parallel thread and taper thread.

Personally I haven't bought a Wydale tank in years so I don't know what the warning sticker says now. I remember it just saying BSP, but then I know the difference between BSPP and BSPT. Some windies may not.

I guess its like telling a McDonald's customer that the contents of his coffee cup are hot. Some may not realise this. 😂

Yer but it’s not. No part of a tapered BSP male is bigger than its parallel equivalent. So over tightening wouldn’t crack anything bescause at its biggest widest diameter a tapered fitting is ever so slightly smaller than a parallel fitting. If a parallel fitting dosent crack it a taper fitting will DEFO not.  

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5 hours ago, doug atkinson said:

If you screw in a BSPTM into BSPF it will not go in fully as the tread at the back is slightly higher than the front. With tapered the thread is at a slight uphill angle. BSP thread is straight. The thread on the tank is think metal so that is why it cracks

Perhaps this will help. The two columns on the left are the MAX o/d of a taper male BSP fitting. One in metric one in imperial. The MAX o/d of the thread or the last thread at the end which you think is bigger. It’s the MAX. The two columns on the right are the MAX o/d of a male BSPP (parallel) fitting. 
 

 

B7B824EA-9FB6-4806-9E6A-B11B7DF52E80.jpeg

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