Abstract: A valve assembly includes a valve body and a bonnet. The valve body has a cylindrical access channel with adjoining at least one radial keyway. At least one coupling cavity adjoins and is out of register with the at least one radial keyway. The bonnet has a cylindrical body with at least one radially extending lug. The at least one lug is configured and sized to be accepted by the at least one radial keyway and to be housed within the at least one coupling cavity when the cylindrical body is twisted so that the at least one lug is out of register with the at least one radial keyway.

Abstract: A valve assembly includes a valve body and a bonnet. The valve body has a cylindrical access channel with adjoining at least one radial keyway. At least one coupling cavity adjoins and is out of register with the at least one radial keyway. The bonnet has a cylindrical body with at least one radially extending lug. The at least one lug is configured and sized to be accepted by the at least one radial keyway and to be housed within the at least one coupling cavity when the cylindrical body is twisted so that the at least one lug is out of register with the at least one radial keyway.

Abstract: An insecticidal composition in the form of an aerosol water-in-oil emulsion is disclosed which comprises:(a) an amount of an aqueous suspension of microencapsulated insecticide to give an insecticide concentration in the composition of from 0.001 to 5% w/w;(b) one or more solvents in an amount of from 1 to 20% w/w;(c) one or more emulsifiers in an amount of from 0.2 to 10% w/w and selected from the group comprising mono-, di-and tri-sorbitan esters, polyoxyethylene sorbitan esters, mono- and poly-glycerol esters, ethoxylated nonionic emulsifiers, propoxylated nonionic emulsifiers and ethoxylated/propoxylated nonionic emulsifiers;(d) from 2 to 80% w/w of one or more propellants;(e) optionally from 0.001 to 5% w/w of one or more oil phase soluble insecticides; and(f) the balance being water.