KwikFlex Hammer Unions are designed to instantly connect or disconnect piping systems replacing traditional flange systems. they are used in Oil and Gas industries Materials Available In AISI 4130 75K / A105. Unions are all steel constructed including precisely manufactured ball-cone (male-to-female) seats. High pressure unions are made from forged alloy steel. Key Features Hammer unions are one of the most readily used connections in the oil and gas industry. Hammer Unions are designed to enjoin mud tanks instantly without having to deal with the flange connections at all. If the mud tanks are not aligned in the right kind of way necessary hammer unions can still be used in order to make absolutely non-leak seals that are tightened. They generally have three parts, male sub, female sub, and a wing nut. The male part is an external threaded portion that is welded on the end of a pipe already connected to a tank wall. The pipe continues further through the nuts towards the O-ring in order to enter into the female part They are then hammered and tightened together. KFI Hammer Unions are forged with high quality alloy steel such as AISI 4130 75K All processes including forging, machining, and heat treatment are strictly controlled and full trackable in accordance with API 6A, API 16c and Q1, as well as NACE-MR-01-75 (sour gas service) Hammer unions are available in size range from ½ ‘’ to 12’’ and are suitable for pressures up to 20,000 psi, and all have full material traceability.