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.