The check valve is a type of automatic valve that uses the force of the medium to open and close disc, preventing backflow of the medium. When a fluorine lining is applied to the flow surface of the check valve, it isolates the medium from direct contact with the metal body. This type of valve is known as a fluorine-lined check valve. It automatically opens when corrosive media flow in the forward direction and closes against the flow , effectively preventing backflow. T
FREE-VALVE Fluorine Lined Diaphragm Valve is a shut off valve where the diaphragm is driven by the valve stem, moving linearly along the stem axis to isolate the actuating mechanism from the fluid medium.When the flow path is lined with fluorine to prevent direct contact between the corrosive medium and the metal body, such valves are classified as the fluoroplastic-lined diaphragm valves. Its are primarily designed for corrosive media and applications requiring zero external leakage.The structural forms of fluoroplastic-lined diaphragm valves are mainly weir type and straight-through type.
FREE-VALVE Fluorine-lined butterfly valves have a nominal pressure of PN10/16 and nominal sizes ranging from DN50 to DN1200. The applicable temperature is determined by evaluating the temperature tolerance of the selected materials (metallic or non-metallic). For example, the operating temperature for steel-lined fluorine (WCB+FEP) materials ranges from-29°C to 150°C, with a maximum limit of 150°C. These valves are suitable for corrosive media such as low-viscosity acids and alkalis, primarily including strong corrosive substances like acids, alkalis, organic solvents, and inorganic solvents. Low viscosity refers to relatively high-concentration granular media, and fluorine-lined valves should avoid use with solid granular media whenever possible.
FREE-VALVE Flange connection fluorine PTFE PFA lined diaphragm valve is a special form of on-off valve, disc is a diaphragm made of corrosion-resistant soft material,the diaphragm separates the bottom body cavity from the top bonnet cavity,so that the stem, metal disc and other parts above the diaphragm are not subject to media corrosion,so fluorine lined diaphragm valve eliminate the packing seal structure, and will not produce media leakage.
FREE-VALVE fluorine-lined globe valve adopts integral rubber encapsulation technology, and the valve body cavity, valve bonnet, valve disc and other parts (i.e., chemical medium overflow parts) in contact with the medium are all made of excellent corrosion-resistant materials as lining or coating materials, and the valve adopts molded lining molding technology, so that the valve has both metal strength and corrosion-resistant characteristics.
FREE-VALVE Fluorine lined weir type diaphragm valve are widely used in chemical industry, medicine and other industrial sectors to achieve the cutting of acid, alkali and other corrosive media in the production process.
FREE-VALVE Fluorine lined weir type diaphragm valve is a special form of on-off valve, disc is a diaphragm made of corrosion-resistant soft material,the diaphragm separates the bottom body cavity from the top bonnet cavity,so that the stem
FREE-VALVE Wafer type PFA Lined Butterfly Valves adopt the central line fluorine lined structure,the valve body and disc are lined with anti-corrosive materials so as to effectively avoid the corrosion of the valve by strong corrosive media,so the valve has both the common butterfly valve mechanical strength, and also can play strong resistance to chemical medium properties .
FREE-VALVE PTFE Seat fluorine Lined Wafer Butterfly Valves adopt the central line fluorine lined structure,the valve body and disc are lined with anti-corrosive materials so as to effectively avoid the corrosion of the valve by strong corrosive media,so the valve has both the common butterfly valve mechanical strength, and also can play strong resistance to chemical medium properties .
FREE-VALVE Fully PTFE FEP lined weir type diaphragm valve is a special form of on-off valve, disc is a diaphragm made of corrosion-resistant soft material,the diaphragm separates the bottom body cavity from the top bonnet cavity
FREE-VALVE PTFE fluorine Lined PTFE Butterfly Valves adopt the central line fluorine lined structure,the valve body and disc are lined with anti-corrosive materials so as to effectively avoid the corrosion of the valve by strong corrosive media,so the valve has both the common butterfly valve mechanical strength, and also can play strong resistance to chemical medium properties .
FREE-VALVE Fully PTFE Lined Butterfly Valves adopt the central line fluorine lined structure,the valve body and disc are lined with anti-corrosive materials so as to effectively avoid the corrosion of the valve by strong corrosive media,so the valve has both the common butterfly valve mechanical strength, and also can play strong resistance to chemical medium properties .
FREE-VALVE Corrosion-Resistant PTFE Fluorine Lined Pneumatic Wafer Flange Butterfly Valve adopts the central line fluorine lined structure,the valve body and disc are lined with anti-corrosive materials so as to effectively avoid the corrosion of the valve by strong corrosive media,so the valve has both the common butterfly valve mechanical strength, and also can play strong resistance to chemical medium properties .
FREE-VALVE Pneumatic Plastic One Piece Integral Flange Ball Valves are straight type integral body design and made from the highest-quality plastic resins ,and they are corrosion resistant plastic flange end design quarter within turn valves with low pressure drops and reliable sealing.The ball itself is held in place by PTFE seats,which provide permanent lubrication and keep the valve bubble-tight.
FREE-VALVE Pneumatic Plastic One Piece Integral Flange Ball Valve are suitable for Seawater, water treatment, water features, fountains, aquariums, landfills, power plants, mining, transportation, chemical processing.
FREE-VALVE FRH44S Non-Return Flange End Swing Type Check Valve refers to the valve that automatically opens and closes the disc by relying on the force generated by the flow of the medium itself to prevent the medium from backflowing.
FREE-VALVE FRH44S Plastic PVDF UPVC Double Flange End Swing Non-Return Check Valve refers to the valve that automatically opens and closes the disc by relying on the force generated by the flow of the medium itself to prevent the medium from backflowing.Plastic swing check valves are swing type and have a plastic disc that swings about a hinge pin or shaft,
FREE-VALVE FRH44S UPVC Plastic Swing Type Check Valve refers to the valve that automatically opens and closes the disc by relying on the force generated by the flow of the medium itself to prevent the medium from backflowing.
FREE-VALVE UPVC PVDF Plastic Flanged Integral Ball Valves are straight type integral body design and made from the highest-quality plastic resins ,and they are corrosion resistant plastic flange end design quarter within turn valves with low pressure drops and reliable sealing.
FREE-VALVE FRQ41S Plastic One Piece Manual Flange End Ball Valves are straight type integral body design and made from the highest-quality plastic resins ,and they are corrosion resistant plastic flange end design quarter within turn valves with low pressure drops and reliable sealing.
FREE-VALVE FRH74X Plastic UPVC PVC Wafer Swing Single Plate Check Valves are installed in the piping system, their main function is to prevent medium from flowing backwards, the valves are swing type ,and comes with a short pattern sandwich type flangeless wafer body conforming to the GB/T12221 face to face dimensions
FREE-VALVE Plastic UPVC Wafer Type Vertical Horizontal Swing Check Valves are installed in the piping system, their main function is to prevent medium from flowing backwards, the valves are swing type ,and comes with a short pattern sandwich type flangeless wafer body conforming to the GB/T12221 face to face dimensions
FREE-VALVE FRH74X UPVC PVC Wafer Swing Check Valves are installed in the piping system, their main function is to prevent medium from flowing backwards, the valves are swing type ,and comes with a short pattern sandwich type flangeless wafer body conforming to the GB/T12221 face to face dimensions
FREE VALVE FRH44J EPDM NBR Viton Rubber Lined Swing Flapper Check Valve relies on the flow of the medium itself automatically opens and closes the valve disc,which is an automatic valve used to prevent the reverse flow of the medium.
FREE VALVE FRH44J One Way Viton Rubber Lined Swing Flap Check Valve relies on the flow of the medium itself automatically opens and closes the valve disc,which is an automatic valve used to prevent the reverse flow of the medium. The disc and the special stem are designed as a whole
FREE VALVE FRH44J Flange End Rubber Fluorine Polymer Lined Swing Check Valve relies on the flow of the medium itself automatically opens and closes the valve disc,which is an automatic valve used to prevent the reverse flow of the medium.
FREE-VALVE Normally Closed Pneumatic Operated Fluorine Lined Diaphragm Valve is composed of single-acting pneumatic actuator and diaphragm valve, which uses pneumatic actuator to drive the opening and closing of the diaphragm valve, and the valve is kept in normally close state in the case of no air source or no signal, and the valve is in a opened state after the cylinder is ventilated, so as to act as an opening and closing mechanism to control the flow of medium.
FREE-VALVE’s manual fluorine lined diaphragm valve is a special form of on-off valve, disc is a diaphragm made of corrosion-resistant soft material,the diaphragm separates the bottom body cavity from the top bonnet cavity
FREE-VALVE’s Manual Fluorine Lined Flange Ball Valve is lined with corrosion resistance,aging resistance of PTFE/F46, has the corrosion resistance and reliable sealing to acid, alkali and other corrosive medium.Features of fluorine lining ball valve is zero leakage with superior sealing performance.
FREE-VALVE’s manual Fluorine-Lined Corrosion Resistant Diaphragm Valve is a special form of on-off valve, disc is a diaphragm made of corrosion-resistant soft material,the diaphragm separates the bottom body cavity from the top bonnet cavity, so that the stem, metal disc and other parts above the diaphragm are not subject to media corrosion,so fluorine lined diaphragm valve eliminate the packing seal structure, and will not produce media leakage.
