  Three members of the new class of pulsating sdB stars (sdBV or EC 14026
stars) are analysed from Keck HIRES spectra using line blanketed NLTE and LTE
model atmospheres. Atmospheric parameters (Teff, log g, He/H), metal abundances
and rotational velocities are determined. As is typical for sdB stars, all
programme stars are found to be helium deficient, with a He abundance ranging
from 1/80 solar for Feige 48 to 1/3 solar for PG 1219+534, probably due to
diffusion. Most metals are also depleted. The abundances of C, O, Ne, Mg, Al
and Si in the high gravity programme stars KPD 2109+4401 and PG 1219+534 are
considerably lower than in the lower gravity stars Feige 48 and PG 1605+072
which could be explained by an equilibrium between gravitational settling and
radiative levitation. Surprisingly iron is solar to within error limits in all
programme stars irrespective of their gravity, confirming predictions from
diffusion calculations. The metal lines are very sharp and allow the
microturbulent velocity to be constrained to be lower than 5km/s (KPD2109+4401,
PG 1219+534). Also the projected rotational velocities have to be very low
(vrot sini<10km/s). For Feige 48 the limits are even tighter (vmicro<=3km/s,
vrot sini<=5km/s).
