http://www.alcovalves.com/Pictures/dbb/DDX4NS-2EJ.jpgThe Double Block & Bleed “Type Y” is fully approved to be supplied to many of the world’s oil majors.
All threads are generated using our in-house CNC machines. 316 stainless steel handles and trim as standard to reducethe risk of corrosion. Materials of construction include standard grades ASTM A350 LF2 / A105, ASTM A182 F316 / F316L and ASTM A182 F51 being held for call off by our clients. This reduces the overall project delivery times dramatically.
Outlets and vents are all 1/2" NPT as standard, 1/4" and 3/4" are also available. Butt weld and socket weld outlets available.