Category:Hardware & Tools/Fasteners & Connectors/Other Fasteners & Connectors

Product Description:The "F&G" trademark was successfully registered domestically on December 31, 2014, and in the United States and the European Union on July 4, 2017, significantly enhancing the Tianhui brand's visibility both domestically and internationally. We handle our own import and export operations, with products sold to Europe, America, and Southeast Asia, and used by brands such as Moncler, Kiabi, Zara, BSK, Parish Nation, Terranova, Calliope, PULL&BEAR, Marc Ecko, Disney, and Guess. We have now been designated as a global supplier for Terranova. Our products have passed the EU confidence textile Standard 100 by Oeko-Tex? product certification, meeting the standards for infant and toddler products. more>

Category:Hardware & Tools/Pipe Fittings/Tee Fittings

Product Description:  Product Shape and Mouth Shape   <img alt="" src="https://www.31fabu.com/ueditor/php/upload/image/5fa8f1e176ffe.png" />   Product Parameter Introduction   <img alt="" src="https://www.31fabu.com/ueditor/php/upload/image/5fa8f1e17f726.png" /> more>

Category:Hardware & Tools/Fasteners & Connectors/Other Fasteners & Connectors

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Category:Hardware & Tools/Castings/Iron Castings

Product Description:Utilizing an integral casting process, the material is RTSI5.5, with a normal service life of 10 to 12 months. more>

Category:Hardware & Tools/Pipe Fittings/Tee Fittings

Product Description:  Product Shape and Mouth Shape   <img alt="" src="https://www.31fabu.com/ueditor/php/upload/image/5fa8f1e19644a.png" />   Product Parameter Introduction   <img alt="" src="https://www.31fabu.com/ueditor/php/upload/image/5fa8f1e19d19d.png" /> more>

Category:Hardware & Tools/Pipe Fittings/Tee Fittings

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Category:Hardware & Tools/Fasteners & Connectors/Other Fasteners & Connectors

Product Description:The electric contact water level gauge utilizes the principle of a communicating vessel to reflect the steam drum water level into the measuring cylinder. By leveraging the difference in electrical conductivity between steam and water through electrodes installed in the measuring cylinder, it illuminates different red and green lights to display the steam drum water level. As unit capacity increases and operating parameters rise, the measurement error of the electric contact water level gauge also increases. Compared to medium and high-pressure boilers, the electric contact water level gauge installed in the 700MW subcritical boiler at Zhuhai Power Plant shows a significantly larger measurement error. The measurement error of the electric contact water level gauge is primarily caused by the measuring cylinder part of the water level sensor. By analyzing the structural characteristics and dynamic properties of the electric contact water level gauge, the characteristics of its measurement error are examined, providing a theoretical basis for improving its design, installation, and application to minimize measurement error as much as possible. Composition of the Electric Contact Water Level Gauge: The electric contact water level gauge includes—a measuring cylinder, electrodes, electrode connection cables, and an electrode controller. Measuring Cylinder: The measuring cylinder is made of large-diameter, thick-walled carbon steel extruded material, seamless steel pipe, or stainless steel pipe. The design and manufacturing of the seamless steel pipe comply with ASME B31.1 requirements for power piping. The measuring cylinder facilitates the condensation of saturated steam and vapor while minimizing temperature loss. The circulation of cold water within the measuring cylinder continuously flushes the container and electrodes, preventing the accumulation of sediment. The maximum temperature of the measuring cylinder can reach 600°C at 30 MPa. Electrodes: Electrodes are probes that detect water/steam and are the core of the entire electric contact water level gauge system. The electrodes are made of special stainless steel, with insulators made of high-purity ceramics. The pressure seal between the ceramic and metal body is achieved through a vacuum welding process. The contacts are treated with a special gold-plating process to avoid wear. All electrodes undergo ammonia leak testing, static pressure testing, and voltage testing. more>

Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

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Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

Product Description:<img src="https://img-i-album.toocle.com/view/2024/12/19/b6/6763cf00600b6.jpg" style="max-width:100%;"/> more>

Category:Hardware & Tools/Pipe Fittings/Tee Fittings

Product Description:Structural Composition of Mine Pneumatic Air Door Control DeviceThe mine pneumatic air door control device is the core system that enables automatic opening, closing, and stable operation of air doors. Its structure is designed around the logic of "sensing trigger - command control - power drive - status feedback" and mainly includes the following key components:Sensing and Detection ComponentsSensor Device: Typically uses infrared or ultrasonic sensors installed at preset positions on both sides of the air door to capture real-time signals of personnel, vehicles, or equipment passage. The sensors are resistant to dust, moisture, and vibration, enabling accurate target detection in complex underground environments while avoiding false alarms or missed detections. <img src="https://img-i-album.toocle.com/view/2025/08/06/8e/6892d56513a8e.jpg" style="max-width:100%;"/>Signal Transmission Lines: Transmit electrical signals captured by the sensors stably to the control core. These lines often use wear-resistant and interference-resistant cables to ensure continuous and accurate signal transmission.Control Core ComponentsMain Controller: Acts as the "brain" of the device, consisting of a programmable logic controller (PLC) or a dedicated control module with built-in preset program logic. Its function is to receive signals from the sensing components, validate them, and then issue commands to the drive system for opening, closing, or maintaining the current state.Operation Panel: Equipped with buttons, indicator lights, etc., it allows manual adjustment of parameters (such as opening/closing delay times) and monitoring of device status (e.g., normal operation, fault alarms). Some panels also support remote control signal input.Protection Module: Includes overvoltage protection, short-circuit protection, and fault self-diagnosis units. In cases of abnormal air pressure or circuit faults, it automatically cuts off output commands and triggers alarms to ensure safe system operation.Power Drive ComponentsPneumatic Power Source: Primarily consists of an air storage tank and a pressure reducing valve. The air tank stores compressed air as the power medium, while the pressure reducing valve adjusts the air pressure to a stable range suitable for the device (typically 0.4-0.6 MPa), ensuring smooth and reliable driving actions.Pneumatic Actuator: Composed of a cylinder, piston rod, and connecting parts. The cylinder is connected to the air source via air tubes. Upon receiving commands from the controller, it drives the piston rod to extend or retract by introducing or releasing compressed air, thereby rotating the air door open or resetting it to a closed position.Pneumatic Control Valve Group: Includes solenoid valves and check valves. Solenoid valves control the on/off and direction of compressed air flow to switch the cylinder's extension and retraction. Check valves prevent air backflow, ensuring stable positioning of the door during opening or closing.Mechanical Auxiliary ComponentsDoor Linkage Mechanism: Consists of hinges, connecting rods, or transmission rods that link the pneumatic actuator to the air door. It converts the linear motion of the cylinder into the rotational motion of the door, ensuring the door opens to the preset angle (typically around 90°).Buffer and Limit Devices: Cushioning pads and mechanical limit blocks are installed at the endpoints of the door's opening and closing paths to reduce impact between the door and the frame, while also preventing excessive movement to protect structural integrity.Sealing and Support Components: Wear-resistant sealing strips are installed along the door frame edges to ensure tight sealing when the door is closed. The support framework provides a fixed base for the entire device, ensuring all components are securely installed and adaptable to underground vibration conditions.Status Feedback ComponentsPosition Sensor: Installed on the cylinder or door linkage mechanism to detect the real-time position of the door (fully open, fully closed, or intermediate state) and feed the position signal back to the main controller for closed-loop control.Audible and Visual Indicators: Composed of indicator lights and buzzers. A green light illuminates and a sound is emitted when the door opens, switching to a red light or turning off after closing, conveying door status information to passing targets.These components work in coordination, triggering control commands through sensing signals, utilizing pneumatic power to achieve automatic door movement, and ensuring operational accuracy through feedback mechanisms, collectively forming the complete operational system of the mine pneumatic air door control device.EditShare more>

Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

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Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

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Category:Hardware & Tools/Pipe Fittings/Tee Fittings

Product Description:Hot Spring Water with Weak Alkaline Balls<img src="https://img-i-album.toocle.com/view/2023/09/25/74/6510de8289874.jpg" style="max-width:100%;"/>Water Treatment Effects of Weak Alkaline Tourmaline BallsWater treated with weak alkaline tourmaline balls can exhibit various restructuring phenomena, turning tap water into ideal functional water. The effects are described as follows:(1) Reduces water molecule clusters (to 5-6 molecules).(2) Adjusts pH to 6.5-7.5 (based on the original water's pH).(3) Lowers oxidation-reduction potential.(4) Imparts interfacial activity (enhances water's detergency, permeability, and reduces surface tension).(5) Provides deodorizing and sterilizing effects (eliminates microbial odor, metal odor, and chemical odor).(6) Improves freshness preservation (e.g., extends the life of cut flowers).(7) Enhances anti-oxidation effects.(8) Stabilizes chlorine (eliminates chlorine odor and unpleasant tastes).(9) Passivates metals (prevents formation of red rust and reddish water).(10) Removes and prevents silica scaling.(11) Provides health-beneficial ionized minerals (magnesium, iron, silica, etc.).(12) Removes sticky substances (microbial aggregates).(13) Imparts therapeutic effects (transforms into immune-boosting water).<img src="https://img-i-album.toocle.com/view/2023/09/25/63/6510de959b663.jpg" style="max-width:100%;"/>The above effects turn tap water into reduced water with smaller molecule clusters. Stabilized chlorine eliminates chlorine odor. Dissolved tourmaline minerals make tap water tasty and healthy.Tourmaline ceramic balls can decompose organic matter into carbon dioxide and water, absorb harmful metal ions, and convert them into safe, insoluble metals, meeting safety standards.Water treated with tourmaline ceramic balls complies with the water quality standards for safe water as defined by food safety laws.There are 46 water quality benchmark items, along with monitoring items (26 items) and comfort water quality items (13 items). Monitoring items track substances with low detection levels, including harmful chemicals, organic matter like toluene, and inorganic substances like nickel. Comfort water quality items are essential for tasty water. Additionally, tap water contains over 400 types of harmful chemicals. Therefore, water treated with tourmaline ceramic balls, which can broadly address harmful substances, is indeed safe drinking water.Water treated with restructuring weak alkaline tourmaline balls can be used not only as drinking water but also as industrial water, food processing water, aquaculture water, agricultural water, livestock treatment water, and other industrial waters. Moreover, the advantage of tourmaline ceramic ball-treated water is that even when used in processed foods, it can restructure the water within, delivering excellent effects. This restructuring effect also applies to water used in cosmetics, water-based raw materials, and chemical products.Tengxiang Environmental Protection Product Series:1. Negative Potential Hydrogen-Rich Series: Hydrogen-rich materials, negative potential ceramic balls, negative potential metal rods (polished, unpolished), negative potential metal granules, negative potential metal sheets, magnesium granules2. Chlorine and Heavy Metal Removal Series: Chlorine removal balls, calcium sulfite granules, chlorine removal rods, KDF heavy metal removal granules3. Alkaline Series: Weak alkaline balls, high alkaline balls, high-temperature tourmaline balls4. Mineralization Series: Maifan stone balls, wooden fish stone balls, mineralization balls, vitamin C balls, selenium-rich balls, microporous balls5. Activated Water Series: High-content small molecule balls, ordinary small molecule balls, negative ion balls, far-infrared balls, microcrystalline stones, piezo stones, magnetic energy balls6. Functional Ingredients: Shower ingredients, faucet ingredients, water machine ingredients, kettle ingredients, oil-cutting ingredients, smoke odor removal ingredients, oil-dissolving filter media, blue ink removal filter media7. Oil-Cutting Series: Oil-cutting balls, white oil-cutting balls, gray oil-cutting balls8. Filling Series: Balls for filling mattresses, cushions, and pillows; negative ion filling balls; far-infrared filling balls; loess balls; Maifan stone filling balls; tourmaline filling balls9. Baking Series: White baking weights, pressing stones, baking beans, roasting beans10. Health Heat Therapy Series: Glazed heat therapy balls, negative ion heat therapy balls, far-infrared heat therapy balls, iron-containing heat therapy balls11. Air Purification Series: Mineral crystals carbon, PPC composite purification powder, diatomite balls (remove formaldehyde, benzene, ammonia, TVOC, PM2.5, and odor particles)12. Alumina Series: High alumina balls, medium alumina balls, low alumina balls, grinding ballsZibo Tengxiang Water Treatment Product Combinations:Tengxiang small molecule balls + chlorine removal balls + VC ballsTengxiang calcium sulfite balls + germanium balls + microporous ballsTengxiang negative potential rods + mineralization balls + microcrystalline stonesTengxiang tourmaline balls + ordinary small molecule balls + oil-cutting ballsTengxiang far-infrared balls + chlorine removal granules + alkaline ballsTengxiang hydrogen-rich balls + KDF + negative ion balls + calcium ion ballsTengxiang Maifan stone balls + mineralization balls + magnesium granules + alkaline ballsTengxiang high-temperature tourmaline balls + negative potential ceramic balls + white mineral ballsTengxiang high alkaline balls + high-content small molecule balls + magnesium chipsTengxiang wooden fish stone balls + negative ion balls + hydrogen-rich granulesTengxiang negative potential metal granules + magnetic energy balls + metasilicic acid ballsTengxiang laundry balls + tourmaline balls + negative ion ballsTengxiang has a comprehensive after-sales team that can provide various filter media usage ratios and guidance. more>

Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

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Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

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Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

Product Description:<img src="https://img-i-album.toocle.com/view/2024/12/23/2b/67690845a2b2b.png" style="max-width:100%;"/> more>