German FLO CONTROL valves, FLO CONTROL models, FLO CONTROL prices

FLO CONTROL valves are piping accessories used to open and close pipelines, control flow direction, and regulate and control the parameters of the conveyed medium (temperature, pressure, and flow rate). According to their function, they can be classified as shut-off valves, check valves, control valves, etc. Valves are control components in fluid transport systems, featuring functions such as shut-off, regulation, flow guidance, prevention of backflow, pressure stabilization, diversion, or overflow pressure relief. Valves used in fluid control systems range from the simplest globe valves to various valves used in highly complex automatic control systems, with a wide variety of types and specifications. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metals, and radioactive media. Based on material, valves are also classified into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316, etc.), chromium-molybdenum steel valves, chromium-molybdenum-vanadium steel valves, duplex steel valves, plastic valves, and non-standard custom valves.

FLO CONTROL valve connection method: ferrule connection

Ferrule connection: its connection and sealing principle is that when the nut is tightened, the ferrule is subjected to pressure, causing its cutting edge to bite into the outer wall of the pipe, while the outer conical surface of the ferrule fits tightly with the inner conical surface of the fitting body under pressure, thus reliably preventing leakage. Advantages of this connection type: 1) Small size, light weight, simple structure, easy assembly and disassembly; 2) Strong connection, wide application range, resistant to high pressure (1000 kg/cm²), high temperature (650 ℃), and impact vibration; 3) Various materials can be selected, suitable for corrosion resistance; 4) Low machining precision requirements; convenient for high-altitude installation. Ferrule connection has been adopted in some small-diameter valve products in China.

FLO CONTROL valve installation precautions

1) Before installing the valve, carefully verify whether the model and specifications of the valve used match the design; 2) Check against the valve model and factory manual to determine if the valve can be applied under the required conditions; 3) When hoisting the valve, ropes should be tied at the flange connection between the valve body and bonnet; do not tie them to the handwheel or valve stem to avoid damaging the valve stem and handwheel; 4) When installing valves on horizontal pipelines, the valve stem should be vertically upward; downward installation of the valve stem is not allowed; 5) When installing valves, do not use forced alignment by pulling or dragging, to avoid damage caused by uneven stress; 6) Rising stem gate valves should not be installed in underground damp locations to prevent corrosion of the valve stem.

FLO CONTROL valve usage precautions

For valves in operation, all valve components should be complete and intact. Bolts on flanges and supports must not be missing, threads should be undamaged, and loosening is not allowed. If the locking nuts on the handwheel are found loose, they should be tightened promptly to avoid wear at the connection points or loss of the handwheel and nameplate. If the handwheel is lost, it must not be replaced with an adjustable wrench; it should be replenished promptly. The packing gland must not be skewed or lack pre-tightening clearance. For valves in environments prone to contamination by rain, snow, dust, wind-blown sand, and other debris, protective covers should be installed on the valve stems. Scales on valves should remain complete, accurate, and clear. Lead seals, caps, pneumatic accessories, etc., on valves should be complete and intact. Insulation jackets should have no dents or cracks. Striking, standing on, or supporting heavy loads on valves in operation is not allowed; this is especially prohibited for non-metallic valves and cast iron valves.

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