Rh-77 Electric Aquarium Air Pump

Here is the rewritten and improved English version of your content, with a natural, human-like tone and expanded to meet the 500-character minimum: --- **Model No.:** RH-77 **Electric Low Pressure Model:** Rh-77 **Electric Low Pressure Exhauster Method:** Entrapment Vacuum Pump **Electric Low Pressure Structure:** Reciprocating Vacuum Pump **Trademark:** Cnruihua **Transport Package:** Carton **Origin:** Wenzhou The **RH-77** is a compact, high-performance air pump designed for aquariums and industrial low-pressure applications. It operates on either 220V or 110V AC power, making it suitable for use in various regions around the world. Each carton contains 100 units, and custom manufacturing options are available upon request. The product is CE and RoHS certified, ensuring safety and environmental compliance. With a flow rate of **2.6 liters per minute** and a pressure output of **4.5 PSI (30 KPa)**, this pump delivers reliable performance. It consumes only **10W** of power, making it energy-efficient. The pump features a **double diaphragm design** with **duckbill valves**, ensuring smooth and consistent operation. The body is made of **aluminum**, providing durability and resistance to corrosion. The RH-77 includes **0.3" (7.6 mm) inlet and outlet ports**, along with a **1-foot insulated wire pair** for safe electrical connections. It operates at a noise level of **40 dB when unconnected**, and this level decreases significantly when connected to an external system. Available in multiple voltage options including **220V/50Hz, 120V/60Hz, and AC24V**, this pump is versatile and easy to integrate into different setups. With a monthly production capacity of **2,000 pairs** and a minimum order quantity of **5 pairs**, it’s ideal for both small and large-scale buyers. Delivery typically takes **48–72 hours** after payment confirmation. Explore our detailed specifications below: | Specification | Details | |------------------------|----------------------------------| | Flow | 2.6 L/min | | Pump Pressure | 4.5 PSI (30 KPa) | | Power Requirement | 220V/50Hz, 120V/60Hz, AC24V | | Power Consumption | 10 W | | Pump Design | Double Diaphragm, Duckbill Valves| | Pump Body | Aluminum | | Inlet & Outlet Diameter| 0.3" (7.6 mm) | | Electrical Connections | 1-ft Insulated Wire Pair | | Noise Level | 40 dB (unconnected), lower when connected | See more images of the RH-77 electric aquarium air pump below:     --- Let me know if you'd like further adjustments!

Fluoroplastic Products

Polytetrafluoroethylene is the most important variety of fluoroplastics. It has excellent chemical stability, weather resistance, electrical insulation, flame resistance, outstanding surface non adhesion, extremely low friction coefficient, and a wide range of service temperatures. It can be used as wear-resistant, corrosion resistant, sealing, insulation, anti adhesion, and high and low temperature resistant materials, and is suitable for long-term work in the temperature range of -80-250C. Tetrafluoroethylene ethylene copolymer, known as fluoroplastic 40, is the lowest density of fluoroplastic (1.71-1.75g/cm3). It has both the radiation resistance of polyethylene and the corrosion resistance of tetrafluoroethylene, and can resist the corrosion of acid, alkali and salt aqueous solutions. It does not dissolve or swell in solvent. It is used as anti-corrosion, electrical insulation and radiation resistant parts in chemical, machinery, electrical appliances, atomic energy and other industries, with long-term service temperature of - 60-180 Cand short-term service temperature of 230 ℃. The tetrafluoroethylene hexafluoropropylene copolymer is composed of about 82% tetrafluoroethylene and about 18% hexafluoropropylene. Its properties and uses are similar to those of tetrachloroethylene, but it can be molded and processed by general thermoplastic molding processing methods, and is suitable for working at - 85-205C. Chlorotrifluoroethylene ethylene copolymer is called fluoroplastic 30. It has both the mechanical strength of nylon, the corrosion resistance of fluoroplastic and the molding performance of high-density polyethylene. It has good adhesion with metals, can be welded and fused by itself, and has excellent ultraviolet and infrared transmission and gas resistance properties. It is suitable for making seals, mechanical parts, low-frequency insulation products working under strong current, wet or corrosive media, etc

FEP,PFA,PCTFE,PVDF,ETFE,PVF,PTFE

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