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A7 / B7 Valve Service Kit

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Leafield
£5.90
SKU:
A-0012
Shipping:
Calculated at checkout

 Product Description

A7 / B7 Inflation Valve Service Kit

Easy to fit repair kit for A7 and B7 inflation valves.

The A7 and B7 valves were fitted to many Ribs and inflatables including Avon, Ribtec, Ribcraft, Humber, Cobra, Revenger.  These started to be replaced with the C7 valve around 1999.

Leafield inflation valve service and repair kit is supplied with:

1 x Replacement valve diaphragm

1 x Diaphragm spindle

1 x Diaphragm spring

1 x Valve O-ring

This valve repair kit will fix leaking A7 and B7 inflation valves.

If you need a valve spanner to carry out this job you can find them here

How to fix a leaky Rib valve.

How to replace the valve diaphragm on an A7 or B7 inflation valve:

1. Push in the valve spindle and twist to the left to lock the valve open.

2. Completely deflate the Rib tube.

3. Undo and remove the nut and washer.

4. Keep the tube flat and close to the ground as it can be difficult to recover the valve if it falls into the tube.

5. Push the valve in through the hole making sure you keep hold of the valve and rotate it until you can see the diaphragm.

6. Get hold of the seal with pliers being careful not to damage the valve body and break the diaphragm away from the spindle.

7. Rotate the valve back to its original position, turn the spindle to the right, and remove the spindle and spring.

8. Fit the new spring and spindle into the valve body. Push in and rotate the spindle to the left to lock it in the open position.

9. Rotate the valve back around until you can see the thread of the spindle.

10. Screw the new diaphragm onto the spindle. Tighten so it's finger tight.

11. Rotate the valve back around and push it back through the fabric hole.

12. Refit the washers and nut in the same order. 

 

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 Product Reviews

  1. great product

    Posted by Nick on 14th Apr 2019

    Great product and easy to use.
    I used a 50mm 2inch open-ended spanner. ring spanner won't fit because of the lug that cover cap is tied to gets in the way. Let most of the air out Undo the large nut being careful not to let the inside part of the valve fall into the tube. Tie a length of strong cotton to the threaded tube that the big nut was holding just in case you drop it into the tube. Carefully turn the valve over until you can see the old rubber domed valve carefully break of the old one with some long nosed plyers turn the valve back round and remove the old spindle and spring turn it round again and fit the new valve. Turn it anticlockwise to lock the spindle in place turn it back round again from the back push the threaded tube back through the hole in the tube put the big nut on one turn Undo the cotton and tighten down the nut and reinflate tube. Check for air leaks. Should only take ten minutes to do. next time only takes five minutes


  2. Valve repair kit

    Posted by Guy on 22nd Jul 2015

    Good quality kit - this is a fiddly job but it has to be done. Took me 7 or 8 minutes to do the first valve and then 3 or 4 for the rest as I got used to it.
    Recommend looking on youtube to find out the way to do it.


  3. inflation valve service

    Posted by Unknown on 25th Jun 2014

    great service ,good product tricky to fit however saves on those leaking valves


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