从China供应商批发进口3inch Water Pump Suction Rubber Hose Factory — FOB条款

The 3-inch water pump suction rubber hose from Qingdao Power Rubber and Plastic Products is a flexible suction and discharge line for industrial water transfer, dewatering, and fluid handling in construction, agricultural irrigation, and mining operations. The hose construction combines a PVC and rubber composite outer cover with internal steel wire reinforcement to prevent collapse under vacuum conditions. The 3-inch nominal bore matches standard pump suction connections and enables flow rates typical of portable trash pumps and centrifugal dewatering units in this diameter class. Steel wire helix reinforcement maintains hose structural integrity during bending and vacuum service, a critical feature for suction applications where kinking or collapse would interrupt flow.

The composite construction leverages PVC for chemical resistance and weathering stability, blended with rubber compounds for elasticity and abrasion resistance at the contact surfaces. Steel wire reinforcement is standard for medium-duty suction hoses in this product category, typically using high-tensile galvanized steel wire in a helical profile. Working pressure ratings for 3-inch suction hoses of this construction commonly fall in the 4 to 10 bar range, with vacuum ratings of 0.8 to 0.9 bar (80 to 90 percent vacuum) depending on wall thickness and wire gauge. Buyers should request specific pressure and vacuum test certificates from Qingdao Power, as the source description does not quote validated ratings. The hose is supplied with export-grade packaging, though the exact reel length, end fitting configuration, and protective wrapping details require direct confirmation.

Intended applications include construction site dewatering, agricultural pump intake lines, quarry slurry transfer, and general industrial water handling where rigid piping is impractical. The product is positioned for OEM and bulk procurement by trade buyers, with global export capability indicated. Buyers should verify compatibility with their pump suction inlet dimensions, as 3-inch nominal bore may refer to internal diameter, outside diameter, or hose end fitting size depending on manufacturer convention. Temperature limitations for PVC-rubber composites typically range from -10°C to 60°C for standard formulations, though specialized compounds extend this range. Request compound specification sheets if the hose will operate in temperature extremes or handle fluids other than clean water, as hydrocarbon exposure or prolonged UV radiation can degrade standard PVC covers.

Qingdao Power Rubber and Plastic Products Co., Ltd. is based in Qingdao, Shandong Province, China, with postal code 266071. The company operates under harbour-level trust indicators and maintains a zero percent response rate on the platform, which suggests buyers may experience delays in initial communication and should allow additional time for quotation and order confirmation. The supplier's primary web presence is at powerhydraulichoses.com, with export contact via [email protected]. The business focuses on rubber and plastic hose products, with this suction hose representing their industrial rather than consumer garden hose line.

The supplier profile does not state year of establishment, factory floor area, production capacity, employee count, annual revenue, or specific quality certifications such as ISO 9001. No client references, export volume data, or manufacturing equipment details are provided. The listing emphasises global export capability and OEM suitability, but buyers should conduct standard due diligence including factory audit or third-party verification before large commitments. The address provided places the company in Qingdao's urban core, which may indicate trading office rather than manufacturing site; clarify whether production is at this address or a separate facility when negotiating.