Rising Stem, Solid Wedge Disc
Lunkenheimer Gate Valves
Fig 1962
Lunkenheimer Gate Valves in large sizes feature renewable nickel alloy discs and seats. Smaller sizes have integral seats. Body design offers maximum resistance to distortion produced by internal pressure.
Bodies
Full, cylindrical design for maximum strength, made of corrosion resistant Steam Bronze. Extra length pipe threads prevent pipe ends from jamming against seats.
Seats
Renewable nickel alloy rings in 1″ and larger sizes. Integral seats in smaller sizes are precision tapered for accurate seating.
Discs
Renewable nickel alloy. Accurately machined with disc-wing guides that conduct the disc to a firm, tight seat.
Bonnet
Union Bonnet: 1/4″ – 2″ sizes provide strong, safe reliable service in industrial use. Bolted Bonnet: 2 1/2″ and 3″ sizes provide extra strength in larger sized valves.
Repacking
Stuffing boxes are deep and valves are repackable under pressure when wide open. Back seats above stem threads make scale formation unlikely and provide a tight seal.
Stems
Resistant to wear, corrosion and embrittlement. Long, accurately machined threads provide full thread contact. Heavy disc-stem connection withstands wearing action when opening valve and prevents stem failure under strain.
Hexagon head gland
Permits the use of a light wrench to easily loosen and raise gland.
Non-slip handwheel
Insures tight closing.
Lunkenheimer Gate Valve: Screw end: Fig 1962
