WF type swivel union

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WF type rotary joints is a reciprocating swing rotary sealing device, specially designed for non continuous rotation or reciprocating swing working conditions (such as mechanical arms, positioners), and solves the problems of leakage and rapid wear of traditional rotary joints during swing through a special sealing structure. ‌‌

Product Features
WF type rotary joints is a movable joint used for swinging or rotating between steel pipelines, also known as a rotary swing rotary joint or rotary pipe joint. It is supported internally by two rows of steel balls or bearings, with smooth rotation and long service life of specialized seals.
It is widely used in metallurgical steel, petrochemical industry, ship pipeline, rubber and plastic, paper and textile, power generation and other industries.
*Supported by two rows of precision grade steel balls, it runs smoothly without swinging;
*High speed applications require optional imported high-speed bearings with dual supports;
*Pre filled with bearing grease inside the bearing, maintenance free for life;
*The main material can be selected from carbon steel SUS304、SUS316L、 Aluminum alloy, etc;
*Select specialized sealing rings, high-pressure flanges, non-standard models can withstand a maximum pressure of 50Mpa;
*Can be combined with various types of active joints to meet the complex spatial rotation transmission medium requirements of on-site working conditions;
*We can customize large diameter specifications such as DN400, DN500, DN600, DN800, DN1000, etc.

Product Introduction
WF type rotary joint is a type of rotary joint, which is a key dynamic sealing product for achieving stable transmission of circulating media between rotating parts of mechanical equipment and stationary pipeline parts. It is also known as rotary pipe joint or reciprocating swing rotary joint; Can be used for movable joints in large mechanical equipment and large-diameter pipelines; Multiple configurations such as welding, straight through, and single/double 90 ° elbow can be selected to achieve rotation and swinging when the equipment is rigidly connected to the pipeline.
According to different working environments and medium requirements, the shell, rotor, and other components of the rotary joint are made of different materials. Commonly used high-strength metal materials, such as stainless steel, aluminum alloy, carbon steel, etc., to provide sufficient strength and corrosion resistance; High performance materials such as fluororubber, polytetrafluoroethylene, perfluoroether rubber, and ethylene propylene diene monomer rubber are commonly used for internal seals to ensure good sealing performance and chemical stability; According to the speed requirements, ball bearing support or bearing support can be selected; Choosing different configurations can reduce wear and failure caused by vibration and extend service life.
Rotary joints are widely used in many industries such as papermaking, metallurgy, plastic processing, petrochemicals, pipeline sewage, agricultural and forestry irrigation, printing and dyeing, steel, fire protection, electricity, shipbuilding, aerospace, natural gas, semiconductors, lithium new energy, etc.
Due to significant differences in specifications and performance requirements for rotary joints across different industries and equipment, the degree of customization for rotary joints is relatively high. Manufacturers usually design and manufacture personalized products based on specific customer needs to meet various special application scenarios,

Technical Parameters
PATMETERS
Maximum operating pressure of medium water: Model WFA
WFB
WFC
WFD
WFE
WFK 365 PSI 25 bar
Maximum operating pressure of medium air:
230 PSI 16 bar
Maximum operating pressure of medium hot oil:
260 PSI 18 bar
Maximum operating pressure of high-temperature molten salt medium:
260 PSI 18 bar
Maximum operating pressure of saturated steam medium:
725 PSI 50 bar
Maximum operating pressure of medium hydraulic oil:
7250 PSI 500 bar
N max. GUM：
100 min-1
Maximum vacuum degree:
75”Hg 10kPa
Maximum usage speed (short-term test)
300RPM 300 min-1
Maximum operating temperature: 320 ℃
Circulating: seawater, acidic and alkaline media, chemical agents, methanol, ether, natural gas, aviation kerosene, aerospace fuel propellants and other media. For corrosive working conditions, please consult