Push Engineering Pvt. Ltd. Manufactures Custom made L. P. Vessel Packages. Push Engineering Pvt. Ltd also offers Condensers, Flake Ice Makers, Screw Conveyors etc. Custom made L.P. Vessel packages are used in refrigeration industries on a complete turnkey basis using all accessories like ammonia pumps, level controllers, `Q`max & `Q`min flanges, sight glass, valves, safety relief valve, strainers, oil pot etc.