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Thread: Where can I get the new wheiraucht piston seal

  1. #1
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    Where can I get the new wheiraucht piston seal

    I have been very interested in the posts concerning using the new hw piston seal in the tx 200, I would like to know where I can get one and what they are called, Thanks. Oh and how much money are they.

  2. #2
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    Quote Originally Posted by NickG View Post
    I have been very interested in the posts concerning using the new hw piston seal in the tx 200, I would like to know where I can get one and what they are called, Thanks. Oh and how much money are they.
    John Knibbs is probably the nearest supplier to you.

    You need to ask for a 25mm Weihrauch HW77 piston seal, best to measure what you get as his grandson served me last time and when I got home I found he'd given me a 26mm seal.

    I take it you know that the weihrauch seal will need an adaptor to fit the TXPiston ?

    Think they're about £11.


    Edit:-

    Any problems with Knibbs and I'll let you have one.



    All the best Mick
    Last edited by T 20; 05-04-2014 at 07:56 AM.

  3. #3
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    Red face

    Quote Originally Posted by T 20 View Post
    John Knibbs is probably the nearest supplier to you.

    You need to ask for a 25mm Weihrauch HW77 piston seal, best to measure what you get as his grandson served me last time and when I got home I found he'd given me a 26mm seal.

    I take it you know that the weihrauch seal will need an adaptor to fit the TXPiston ?

    Think they're about £11.


    Edit:-

    Any problems with Knibbs and I'll let you have one.



    All the best Mick
    Thanks Mick, I am making my own ally pistons with o rings, but now want to try the new seal, always looking for improvements how do identify the new seal as opposed to the old one.

  4. #4
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    I didn't think HW did the new style seals in 25mm ?

    (I'm doing the same as you)

    You can get old design HW 25, or a VAC 25 from the US. Or a Macarri. I've got the latter en route, but I'm also trying to blag any old usable 25mm seal for a prelim test:
    http://www.airgunbbs.com/showthread....HW-piston-seal

    Unfortunately I accidentally butchered my Vac25 sizing it for a comp tube that turned out to be undersized (no biggy) and bulged (useless). So now it's undersize. Going to convert it to an o-ring carrier

    Rgds -JB

  5. #5
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    you can't get the new HW seal in 25mm only 26 and 30mm which is a real downer

    Vac25 is about the best seal right now for a TX or if you cn get one an LGV seal with a modified front seal face.

  6. #6
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    Quote Originally Posted by Jon Budd View Post
    I didn't think HW did the new style seals in 25mm ?

    (I'm doing the same as you)

    You can get old design HW 25, or a VAC 25 from the US. Or a Macarri. I've got the latter en route, but I'm also trying to blag any old usable 25mm seal for a prelim test:
    http://www.airgunbbs.com/showthread....HW-piston-seal

    Unfortunately I accidentally butchered my Vac25 sizing it for a comp tube that turned out to be undersized (no biggy) and bulged (useless). So now it's undersize. Going to convert it to an o-ring carrier

    Rgds -JB
    That's a shame, I am using o rings at the moment, but have an issue with them wearing out too quickly, I am using them from a cheap kit from toolstation, so not sure of the spec, going to get some nitrile shore 70 ones, or may try Viton as they have a better deformation set. Wanted to try the hw seal to see if it softened the shot cycle any, the old ones seem a bit too rigid for my liking.

  7. #7
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    Quote Originally Posted by NickG View Post
    That's a shame, I am using o rings at the moment, but have an issue with them wearing out too quickly, I am using them from a cheap kit from toolstation, so not sure of the spec, going to get some nitrile shore 70 ones, or may try Viton as they have a better deformation set. Wanted to try the hw seal to see if it softened the shot cycle any, the old ones seem a bit too rigid for my liking.
    Nick,
    I am using a vortek 77 seal on my ally tx piston, its a great seal. Just wish i had another .)

  8. #8
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    Quote Originally Posted by prosport.177 View Post
    Nick,
    I am using a vortek 77 seal on my ally tx piston, its a great seal. Just wish i had another .)
    The vac25, right ?

  9. #9
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    Quote Originally Posted by Jon Budd View Post
    The vac25, right ?
    Thats the one it is a nice seal
    i want another one

  10. #10
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    Quote Originally Posted by prosport.177 View Post
    Thats the one it is a nice seal
    i want another one
    I never got to try mine Will order another too, but will try the macarri first...

  11. #11
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    so it looks like the vac 25 then

  12. #12
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    Just purchased some piston seals from a local supplier, they are u seals so going to experiment

  13. #13
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    Quote Originally Posted by Jon Budd View Post
    I didn't think HW did the new style seals in 25mm ?

    (I'm doing the same as you)

    You can get old design HW 25, or a VAC 25 from the US. Or a Macarri. I've got the latter en route, but I'm also trying to blag any old usable 25mm seal for a prelim test:
    http://www.airgunbbs.com/showthread....HW-piston-seal

    Unfortunately I accidentally butchered my Vac25 sizing it for a comp tube that turned out to be undersized (no biggy) and bulged (useless). So now it's undersize. Going to convert it to an o-ring carrier

    Rgds -JB
    Jon,
    I may have one at home,will check tonite and let you know,

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