Chemicals / process liquids
Gate / knife valves
Blackhall extended bonnet gate valves are manufactured in aluminium and designed and engineered specifically for cryogenic service.
They feature a blow-out-proof spindle with a one-piece high-strength design.
They have a long-life, low-torque spindle thread.
The valves are easy to maintain - packing and plug replacement is carried out in minutes without removing the valve body from the line.
• Zero seat leakage on O.F.N. pneumatic seat and body test.
• Inert gas sintered P.T.F.E. seat to ensure tight shut-off at all times.
• Long life gland packing.
• Bolted bonnet, screwed gland.
• Full bore, low pressure drop.