Enpro Industries Pvt. Ltd. Supplies Seal Gas Units with up to 150 Bar Pressure. Enpro Industries Pvt. Ltd. Has obtained ISO 9001:2000 certifications. Seal Gas Units with up to 150 Bar Pressure is suitable for dry gas seals of centrifugal compressors. Seal Gas Units with up to 150 Bar Pressure has been available in the line sizes up to 40 mm.