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ASME B16.5: The Foundation of Flange Ratings ASME B16.5 is the authoritative standard for pipe flanges and flanged fittings, outlining critical dimensions, pressure-temperature ratings, materials, and testing. It establishes seven primary pressure classes: 150, 300, 400, 600, 900, 1500, and 2500. While each serves a specific purpose, Class 150 and Class 300 flanges are exceptionally common in both industrial and commercial settings due to their versatility. Class 150 Flange vs. Class 300 Flanges The distinction between Class 150 and Class 300 flanges boils down to their performance capabilities, particularly their ability to handle pressure and temperature. Strength and Pressure Handling At the heart of the matter is pressure resilience. Class 300 flanges are engineered for considerably higher pressure tolerances compared to their Class 150 counterparts. Class 150 Flanges: Typically rated to withstand pressures up to 285 psi. Class 300 Flanges: Designed for more demanding conditions, handling pressures up to 740 psi. This significant difference in pressure rating directly impacts where each flange type is best utilized. Applications Class 150 Flange Applications Class 150 flanges are commonly used in low-pressure and moderate-temperature applications. Typical industries and use cases include: Water Treatment and Distribution: Perfect for municipal water systems where pressures are controlled. HVAC Systems: Commonly found in heating, ventilation, and air conditioning pipelines that don’t experience extreme pressure fluctuations. Food and Beverage Processing: Suited for non-corrosive fluid lines within moderate pressure limits. Low-Pressure Oil & Gas Segments: Utilized in less critical sections of pipelines where operational pressures remain well below 285 psi. Class 300 Flange Applications: Class 300 flanges are used in higher-pressure and higher-temperature environments, such as: Petrochemical and Refining: Essential for handling high-pressure steam, various gases, and corrosive chemicals. Power Generation Plants: Critical in high-pressure steam lines and boiler feed systems where reliability is paramount. Heavy Industrial Process Piping: Employed in chemical plants and manufacturing facilities demanding robust and secure connections for intensive processes. High-Pressure Oil & Gas Systems: Indispensable in pipelines transporting crude oil, natural gas, and other energy products under significant pressure. In essence, industries prioritizing superior sealing integrity and safety under high-pressure conditions will almost always opt for Class 300 flanges. Dimensional Variations The differences aren’t just in pressure ratings; they’re physically evident in the flange’s construction. Wall Thickness: Expect Class 300 flanges to possess noticeably thicker walls and a greater overall mass, directly contributing to their ability to withstand higher forces. Outside Diameter (OD): Class 300 flanges generally feature a larger outside diameter. For example, a 4-inch Class 150 flange might have an OD of approximately 9 inches, whereas a 4-inch Class 300 flange would be closer to 10.75 inches. Bolt Circle Diameter & Bolt Holes: To accommodate increased pressure and ensure a se

Minimum Order: 10 long tons

Steel pipe reducers are essential components in many piping systems, facilitating the connection of pipes with varying diameters. They play a crucial role in controlling fluid flow, making them indispensable in various industrial and residential applications. What is a Steel Pipe Reducer? A pipe reducer is a fitting used to change the diameter of a pipeline, either by enlarging or reducing it. As the name suggests, reducers enable the smooth transfer of fluids from a larger pipe to a smaller one, or vice versa. This functionality is key to regulating liquid flow and adjusting its velocity within a system. Essentially, the primary purpose of a reducer is to manage and control fluid dynamics, enabling precise adjustments in flow rate as needed. At JSFittings, our steel pipe reducers are engineered with precision, adhering to stringent international standards, including ASTM and ASME. Whether it’s for high-pressure oil pipelines or typical residential water systems, our reducer pipe fittings ensure leak-proof connections and long-lasting reliability. Steel Pipe Reducer Applications of Steel Pipe Reducers Steel reducers are widely utilized in demanding environments like chemical factories and power plants, where they enhance the reliability and compactness of piping systems. They protect the system from adverse impacts and thermal deformation. When integrated into a pressure circuit, they prevent leakage and simplify installation. Furthermore, reducers coated with nickel or chrome offer extended product life, are ideal for high-vapor lines, and provide excellent corrosion resistance. Steel Pipe Reducers Types: Pipe reducers are primarily categorized into two types: concentric reducers and eccentric reducers. 1. Steel Pipe Concentric Reducer This type features a symmetrical, conical shape, ensuring that the diameter change occurs uniformly around the centerline. Key Features: Facilitates a smooth transition between pumps and piping. Effectively conveys slurries and abrasive fluids. Suitable for operations where corrosion is a concern. Ideal for situations requiring different ratings and wear protection when connecting flanges or pipes. Perfectly suited for use in pump suction lines. 2. Steel Pipe Eccentric Reducer Unlike its concentric counterpart, the eccentric reducer is not symmetrical about the centerline. It’s specifically designed for pipe-work systems where the pipe diameter needs to be reduced while maintaining a flat top or bottom surface. Key Features: Enables the connection of pipes with significantly different diameters. Contributes to reduced noise and vibration in the system. Requires minimal installation space. Helps absorb noise generated by pipe walls and fluid turbulence. Minimizes turbulence entrapment. Often used with the flat side up in pump pressure applications to mitigate cavitation. steel pipe concentric reducers and eccentric reducers Concentric Reducers vs. Eccentric Reducers: While concentric reducers are more commonly used, eccentric reducers are specifically employed to maintain consistent top or bottom pipe levels. Eccentric reducers are also crucial in preventing air entrapment within the pipeline, whereas concentric reducers are effective in reducing noise pollution. Connection Types of Pipe Reducers Pipe reducers are also classified by their connection methods: socket weld reducers and butt weld reducers. Socket Weld Reducer: Also known as a socket weld insert, these come in three types (1, 2, and 3) and comply with ASME B16.11 manufacturing standards. Socket welds offer about half the strength of butt welds and are typically used for small-diameter pipes (NPS 2 or less). Butt Weld Reducer: These reducers have plain or beveled ends, manufactured according to ASME B16.9, with welding processes adhering to ASME B16.25. Butt welds provide superior strength, making them suitable for high-pressure and high-temperature pipelines. Material Types for Pipe Reducers Reducers can be crafted from various materials, including carbon steel, alloy steel, and stainless steel, among others. Each material offers distinct properties suitable for different applications. Steel reducers pipe fitting material Carbon Steel Reducers vs. Stainless Steel Reducers Carbon steel reducers generally offer higher pressure resistance, greater strength, and better wear resistance compared to stainless steel. However, carbon steel is more susceptible to corrosion. Carbon Steel Reducer Material Standards and Grades: A234 WPB, A420 WPL6, MSS-SP-75 WPHY 42, 46, 52, 56, 60, 65, and 70. Stainless Steel Reducer Material Standards and Grades: ASTM A403 WP 304, 304L, 316, 316L, 317, 317L, 321, 310, and 904L, etc. Alloy Pipe Reducer Material Standards and Grades: A234 WP1, WP5, WP9, WP11, WP22, WP91, etc. JSFITTINGS is dedicated to providing comprehensive piping solutions for industrial clients worldwide. Based in China, we deliver high-quality steel pipe fittings globally, ensuring optimal performance and reliability for diverse industrial needs.

Minimum Order: 10 long tons

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AE300 Series Economic Type Open Loop Vector Control Inverter is a kind of mini general vector inverters, 3 phase ac motor driver adopt international advanced vector control algorithm and possess excellent functions; Based on its advanced design, it is well-known for its good quality, smaller and space-saving with competitive price. Features Features of AE300 Series 3 Phase Vector Control Inverter Excellent control performance Mini design, smaller installation space Rich product configuration and interface Easy to use and easy to repair Integrate multiple product features to meet diverse application needs Applications of AE300 Series 3 Phase Vector Control Inverter: Air compressor, Oil, Warming and Water Supply, Plastics machine, Mine, Fans and Water pumps. Technical Specifications of AE300 Series Economic Type Open Loop Vector Inverter Item Technical Index Specification Input Input voltage 3AC 380V±15% Input frequency 47~63Hz Output Output voltage 0～rated input voltage Output frequency V/f control: 0~3000Hz Sensorless vector control: 0~300Hz Control Features Control mode V/f control Sensorless vector control Torque control Operation command mode Keypad control Terminal control Serial communication control Frequency setting mode Digital setting, analog setting, pulse frequency setting, serial communication setting, multi-step speed setting & simple PLC, PID setting, etc. These frequency settings can be combined & switched in various modes. Overload capacity G model: 150% 60s, 180% 10s, 200% 3s P model: 120% 60s, 150% 10s, 180% 3s Starting torque 0.5Hz/150% (SVC); 1Hz/150% (V/f) Speed adjustment range 1:100 (SVC), 1:50 (V/f) Speed control precision ±0.5% (SVC) Carrier frequency 1.0--16.0kHz, automatically adjusted according to temperature and load characteristics Frequency accuracy Digital setting: 0.01Hz Analog setting: maximum frequency * 0.05% Torque boost Automatically torque boost; manually torque boost: 0.1%~30.0% V/f curve Three types: linear, multiple point and square type (1.2 power, 1.4 power, 1.6 power, 1.8 power, square) Acceleration/deceleration mode Straight line/S curve; four kinds of acceleration/deceleration time, range: 0.1s~3600.0s DC braking DC braking when starting and stopping DC braking frequency: 0.0Hz~maximum frequency, braking time: 0.0s~100.0s Jog operation Jog operation frequency: 0.0Hz~maximum frequency Jog acceleration/deceleration time: 0.1s~3600.0s Simple PLC & multi-step speed operation It can realize a maximum of 16 segments speed running via the built-in PLC or control terminal. Built-in PID Built-in PID control to easily realize the close loop control of the process parameters (such as pressure, temperature, flow, etc.) Automatic voltage regulation Keep output voltage constant automatically when input voltage fluctuating Control Function Common DC bus Common DC bus for several inverters, energy balanced automatically Torque control Torque control without PG Torque limit “Rooter” characteristics, limit the torque automatically and prevent frequent over-current tripping during the running process Wobble frequency control Multiple triangular-wave frequency control, special for textile Timing/length/ counting control Timing/length/counting control function Over-voltage & over-current stall control Limit current & voltage automatically during the running process, prevent frequent over-current & over-voltage tripping Fault protection function Up to 30 fault protection including over-current, over-voltage, under-voltage, overheating, default phase, overload, shortcut, etc., can record the detailed running status during failure & has fault automatic reset function Input/output terminals Input terminals Programmable DI: 7 on-off inputs, 1 high-speed pulse input 2 programmable AI: AI1: 0～10V or 0/4～20mA; A12: 0～10V or 0/4～20mA Output terminals 1 programmable open collector output: 1 analog output (open collector output or high-speed pulse output) 2 relay output 2 analog output: 0/4~20mA or 0~10V Communication terminals Offer RS485 communication interface, support MODBUS-RTU communication protocol Human machine interface LED display Display frequency setting, output frequency, output voltage, output current, etc. Multifunction key QUICK/JOG key, can be used as multifunction key Environment Ambient temperature -10℃～40℃, derated 4% when the temperature rise by every 1℃ (40℃～50℃). Humidity 90%RH or less (non-condensing) Altitude ≤1000M: output rated power, ＞1000M: output derated Storage temperature -20℃～60℃ Selection table Inverter Model Motor Rated Output Current (A) KW HP 3AC 380V/400V/415V -15%~15% AE300-0R7G/1R5P-T4 0.75/1.5 1/2 2.1/3.8 AE300-1R5G/2R2P-T4 1.5/2.2 2/3 3.8/6.0 AE300-2R2G/004P-T4 2.2/4.0 3/5 6.0/9.0 AE300-004G/5R5P-T4 4.0/5.5 5/7.5 9/13 AE300-5R5G/7R5P-T4 5.5/7.5 7.5/11 13/17 AE300-7R5G/011P-T4 7.5/11 11/15 17/25 AE300-011G/015P-T4 11/15 15/20 25/32 AE300-015G/018P-T4 15/18.5 20/25 32/37 AE300-018G/022P-T4 18.5/22 25/30 37/45 AE300-022G/030P-T4 22/30 30/40 45/60 AE300-030G/037P-T4 30/37 40/50 60/75 AE300-037G/045P-T4 37/45 50/60 75/90 AE300-045G/055P-T4 45/55 60/75 90/110 AE300-055G/075P-T4 55/75 75/100 110/150 AE300-075G/090P-T4 75/90 100/125 150/176 AE300-090G/110P-T4 90/110 125/150 176/210 AE300-110G/132P-T4 110/132 150/175 210/253 AE300-132G/160P-T4 132/160 175/210 253/304 AE300-800G-T4 800 1070 1400 AE300-900G-T4 900 1200 1580 AE300-1000G-T4 1000 1330 1750 AE300-1200G-T4 1200 1600 2100 AE300-1400G-T4 1400 2120 2350 Shenzhen MICNO Electric Co., Ltd. is one of human machine interface manufacturers. We provide Servo System, Spare Parts, 3 phase frequency drive, ac drive for three phase motor, three phase ac motor speed control, 380v vfd, 3 phase variable speed drive, variable speed drive for 3 phase motor and so on. Want to know about 3 phase converter price? Please contact us.