A full range of purpose designed surface and subsea hydropneumatic accumulators based on proven Hydrotrole range; available in bladder-piston-diaphragm-indicating (tale rod) and sleeve series. Subsea units (model numbers prefixed "SSA") are designed as standard for water depths down to 1500 ft; sea water lockout seals and totally enclosed gas charging valve chamber allow maximum safety and reliability. Deep submergence, suitable for well head christmas trees. Minimum safety factor 4:1. External finish as standard :- Primer - Carbo Zinc 11, Top Coat - Carboline Epoxy CE190HV.
Built to Hydrotrole specification SDC1-l/2/73 as standard or ASME8 and Lloyds; a non welded pressure vessel for internal and external pressure can be furnished from substantially stock components.