Bellows Seal Valves

It is reliably sealed, even under the most adverse conditions. The bellows-type valve is maintenance-free and like all ARI valves - is classed leak rate 1 in accordance with DIN 3230T3.Products:ANSI Long Life Stop Valves Class 150 with FlangesANSI Long Life Stop Valves Class 300 with FlangesANSI Long Life Stop Valves Class 300 with Socket EndsLong Life Stop Valves Y-Pattern- PN 40 Bar with Butt Weld EndsLong Life Stop Valves Y-Pattern- PN 25 Bar with Butt Weld EndsLA Long Life Stop Valves PN 40 Bar with Long Bellow Butt Weld EndsLocking Device / Stroke LimiterPlugsFeatures:Cast steel PM 25 to ANSI 300 1/2 to 12 inchesStraight-through or Y-pattern designEasy operating handwheel with safe operation at all working temperaturesEnergy-saving bell of chrome nickel steel with air cushion between bell and housingBellows of chrome-nickel steelInternals (stem, disk and seat of stainless steel)Disk flexibly attached to stem for easy replacement and to prevent vibration transfer to bellowsMediums:Standard: Steam, gases, hot water, thermal fluids, hot oil, process water, vacuum facilities, ammonia etc.Stainless Steel: Process water, aggressive media, etc.