Pressure valve Ferroli F30 boiler?

Please can somneone help me. had no pressure in boiler since friday. phoned manufacturer and local engineer they both said silver flexible pipe which I have located, turn valve anti clockwise until pressure tops up. I cant find a valve anywhere!
ive taken pictures if that would help
Russ, April 2007


done
the valve should be on the flexi pipe

hi-spec plumbing, April 2007
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