Import Apv Pump Mechanical Seals With High Qual — Buy in wholesale FOB from Supplier in China

These DaoLin-branded mechanical seals, model DL-AP-01, are replacement seals units for APV centrifugal and positive displacement pumps. The seal accommodates shaft diameters of 25 mm, 38 mm and 45 mm, covering common pump frame sizes in sanitary and industrial water applications. Operating conditions span -20°C to +180°C at a maximum pressure of 1.2 MPa and surface speed up to 10 m/s. The stationary and rotary seal faces are available in carbon or silicon carbide (SiC), with secondary seals in NBR, EPDM or Viton elastomers depending on fluid and temperature compatibility.

Carbon seal faces offer self-lubricating properties and run-in conformity with mating surfaces, making them economical for clean water and moderate-temperature duties. SiC faces provide superior hardness, thermal conductivity and abrasion resistance for abrasive slurries, hot water and chemical service where carbon would wear prematurely. The O-ring or bellows secondary seal material selection, NBR for oils and water below 100°C, EPDM for steam and hot water to 150°C, and Viton for solvents and acids to 180°C, determines the upper temperature limit and chemical compatibility. Spring or metal-bellows loading maintains face contact as wear occurs.

Primary applications include water transfer pumps, sewage and wastewater handling equipment, and sanitary pumps in dairy, beverage and pharmaceutical processing where APV W+ or similar pump models are installed. The sanitary pump market requires seals with minimal dead space and FDA-compliant elastomers. When specifying, confirm the exact shaft diameter and whether the pump uses a single or double seal configuration. Replacement seal kits should include all O-rings, springs and set screws; verify whether the supplier provides installation tools or torque specifications for face compression.

Shaanxi Daolin Mechanical & Electrical Co., Ltd. is located at Room 11204, No. 1 Building, Zhengxin Mansion, Xi'an 710075, Shaanxi Province, China. The company holds a harbor trust tier. Response rate is recorded at 0.00% with zero average response hours, indicating potential delays in initial inquiry handling. No ISO certification status, factory ownership details, years in operation, or employee count are disclosed in the available profile.

The listing markets DaoLin-brand replacement mechanical seals for APV pumps, with DL-AP-01 as the featured model. The source description specifies operational parameters, material options, packaging in tissue paper and carton, and shipping via express courier, air or sea freight. No original equipment manufacturer licensing or aftermarket certification from APV/SPX Flow is mentioned. Buyers should independently verify face flatness tolerances, material certificates for SiC and elastomer grades, and whether the supplier offers dimensional interchangeability guarantees with original APV seal part numbers. No client references, warranty terms, or annual production volume figures appear in the profile.