Chiksan Original Swivel Joints are a complete line of swivel joints for drilling, production, and well servicing.
Widest selection in the oilfield
Chiksan swivel joints come in 3/8- to 12- inch sizes and can handle pressures to 20,000 psi. Sour gas models (see page 6) are limited to 15,000 psi. Eight Chiksan styles or assembly configurations are available from stock. These styles (see page 4) can be combined in an unlimited variety of ways to suit practically any installation. End connections are threaded, integral Weco® wing union, beveled for welding or flanged. Sour gas swivel joints have Weco wing union end connections.
Pressure-tight seals protect bearings from line fluid
Chiksan swivel joints come standard equipped with nitrile packing and bonded, brass anti-extrusion ring. 6- to 12-inch sizes have stainless steel anti-extrusion ring. The anti-extrusion ring serves as a retainer and bearing to reduce friction between the resilient packing material and the packing chamber the joint is turned. These dynamic-seal packing units protect ball races and bearings from line fluid through the stated pressure range, including vacuum or suction service, to 225°F. Longsweep® TripleStep models have a secondary O-ring seal which prevents minor leakage past the primary seal from contacting the bearings. These swivel joints also have a leak detection port between the packing and O-ring seal. If leakage past the packing should occur, it is forced through the leak-detection port, signalling the need for packing replacement.
Bearings key to rotation, strength
To assure long, dependable operation, Chiksan ball bearings are matched to loading and service conditions. Although the size, type, and number of bearings vary, Chiksan low-pressure, high-pressure, and extra high-pressure swivel joints all have two rows of bearings in each swivel and flame-hardened ball races. Longsweep and Longsweep TripleStep swivel joints have three rows of bearings in each swivel for improved load capacities. All Longsweep and Longsweep TripleStep swivel joints for standard service have carburized and hardened ball races.
Smooth, round bore minimizes flow restrictions
Chiksan swivel joints have smooth, round bores to minimize turbulence and keep pressure drop low. Longsweep and Longsweep TripleStep swivel joints have extra-long radius elbows for even better flow characteristics and reduced chance of washout when handling abrasives at extremely high pressures.
Simple maintenance
Only occasional light greasing with a small, hand-held grease gun is required to keep Chiksan swivel joints on the job. If packing, bearings, or ball plugs should need replacing because of leakage, field repair kits are available. Easy-to-follow instructions come with each repair kit.