was testing the pneumatics on hydra on saturday and found that there appears to be some bypassing of the burkert valves going on. They seem to be letting some smal amount of flow through whilst they're de-energised. Fine until you shove em on an axe and it starts moving!!!! :shock: :shock:

Had a look inside and the seal which closes the valve looks relatively well worn. Is it possible to replace these or can i just remove them and turn them round or replace them with a machined ptfe alternative?

Andy