Philmac poly liner

fermerboy

Member
Location
Banffshire
Think that they have to be used for water board approved fitting.
We rarely use them either, a Philmac rep told me on a stand at a show somewhere that they will be fine without the liner, but they won't guarantee the 10bar rating.

And this bit will start an argument, I won't use Philmac or anything else anyway.
Plasson is the only coupling I'll use and even more so if it's going underground.
Had too many Philmac leak and be a pain.
 

onesiedale

Member
Livestock Farmer
Location
Derbyshire
Think that they have to be used for water board approved fitting.
We rarely use them either, a Philmac rep told me on a stand at a show somewhere that they will be fine without the liner, but they won't guarantee the 10bar rating.

And this bit will start an argument, I won't use Philmac or anything else anyway.
Plasson is the only coupling I'll use and even more so if it's going underground.
Had too many Philmac leak and be a pain.
no argument on the plasson v philmac.
Plasson wins every time
 

Oscar

Member
Livestock Farmer
It just stiffens the pipe so the compression part of the fitting grips the pipe properly. Without the liner , as you tighten the fitting , it tends to push the pipe inwards ( as it can because its thinner) and thus the compression is not as tight so at high pressures there is a " risk" that the fitting could get pushed off the pipe .
 

Bury the Trash

Member
Mixed Farmer
They are designed for the use as part of the joint so why not use them .

plasson fittings will leak if poorly fitted as well.
Take care as all plumbing, when fitting with philmac and they are fine .
Follow instructions. keep spotless ly clean when fitting even a speck of grit will cause a leak.

devil is in the detail.

its a poor workman who blames his tools
 

C.J

Member
Livestock Farmer
Location
South Devon
They are designed for the use as part of the joint so why not use them .

plasson fittings will leak if poorly fitted as well.
Take care as all plumbing, when fitting with philmac and they are fine .
Follow instructions. keep spotless ly clean when fitting even a speck of grit will cause a leak.

devil is in the detail.

its a poor workman who blames his tools

I avoid using them on the rising main - whats the point in spending extra money for a 50mm pipe if you're going to reduce it down to 40mm on every joint.... I even use over size gate valves and Ts , so there is less resistance caused by bulky plastic fittings.
 

Bury the Trash

Member
Mixed Farmer
I avoid using them on the rising main - whats the point in spending extra money for a 50mm pipe if you're going to reduce it down to 40mm on every joint.... I even use over size gate valves and Ts , so there is less resistance caused by bulky plastic fittings.
increasing Resistance is not as much at all on a short 'quick ' pass through as compared that what's potentially caused through hundreds of meters of pipe.


even not using pipe inserts / liners in joints will still mean disrupting flow /adding friction through the joiner itself thus a bit of a reduction in flow
 
Last edited:

Mc115reed

Member
Livestock Farmer
Think that they have to be used for water board approved fitting.
We rarely use them either, a Philmac rep told me on a stand at a show somewhere that they will be fine without the liner, but they won't guarantee the 10bar rating.

And this bit will start an argument, I won't use Philmac or anything else anyway.
Plasson is the only coupling I'll use and even more so if it's going underground.
Had too many Philmac leak and be a pain.
No argument too start there Philmac are stroke .. but there cheap so I use them 😂😂
 

Bury the Trash

Member
Mixed Farmer
If you were to maul through a bit of pipe with some loppers because there is nothing else to hand the liner is handy as it makes the pipe round again. Plasson seals on the outside of the pipe so not round, no seal.
whatever its cut with plastic pipe deforms a bit . should chamfer/smooth the outer edge a bit as well to allow an easy non damaging/dislocating push through the seal.

Its all about good quality workmanship verses poor , attention to detail.
 

Exfarmer

Member
Location
Bury St Edmunds
I avoid using them on the rising main - whats the point in spending extra money for a 50mm pipe if you're going to reduce it down to 40mm on every joint.... I even use over size gate valves and Ts , so there is less resistance caused by bulky plastic fittings.
having worked on Irrigation for 20 odd years I can assure you that it will make no detectable difference nor will fitting oversize gate valves. you will see the difference in your bank balance though
 
We only use the liners when the pipe is underground, as we don't want the risk of having to dig up again. We very rarely use them above ground.
With respect to the make, we've got in use mark 2 and 3 Philmac and Plasson. pros and cons with both to be honest. Mk 3 Philmac much better than Mk 2 and need to be done up very tight. Plasson work very well, only need to be hand tight. Can be quite difficult to push properly home. Use all sizes, 20mm, 25mm, 32mm, 50mm.
Philmac is readily available for us from a very good local stockist, whereas I have to order Plasson, so often use Philamac in a more emergency situation.
 

Exfarmer

Member
Location
Bury St Edmunds
We only use the liners when the pipe is underground, as we don't want the risk of having to dig up again. We very rarely use them above ground.
With respect to the make, we've got in use mark 2 and 3 Philmac and Plasson. pros and cons with both to be honest. Mk 3 Philmac much better than Mk 2 and need to be done up very tight. Plasson work very well, only need to be hand tight. Can be quite difficult to push properly home. Use all sizes, 20mm, 25mm, 32mm, 50mm.
Philmac is readily available for us from a very good local stockist, whereas I have to order Plasson, so often use Philamac in a more emergency situation.
A drop of silicone will help to insert the pipe. I use it in the garden but that is a low pressure system.
 

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Red Tractor drops launch of green farming scheme amid anger from farmers

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As reported in Independent


quote: “Red Tractor has confirmed it is dropping plans to launch its green farming assurance standard in April“

read the TFF thread here: https://thefarmingforum.co.uk/index.php?threads/gfc-was-to-go-ahead-now-not-going-ahead.405234/
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