At minimum, confirm the pump manufacturer and model, shaft diameter, seal chamber dimensions, operating pressure and temperature, media type, and shaft speed. If replacing an existing seal, providing the current seal brand and model number enables accurate cross-referencing. For custom seals, an engineering drawing or sample of the existing seal accelerates the quotation process.

Yes. Over 56% of our production is dedicated to custom-engineered seals. You can send engineering drawings in DWG, PDF, or STEP format, or ship a physical sample to our facility. Our engineering team will verify dimensions, recommend materials, and provide a detailed quotation typically within 48 hours of receiving complete information.

For temperatures above 120°C or chemically aggressive media, metal bellows seals should be the first consideration — they eliminate dynamic O-rings that degrade under heat and chemical attack. Face materials should be upgraded to SiC/SiC or diamond-coated surfaces, and metal components should use Hastelloy C-276 or equivalent corrosion-resistant alloys. Proper seal support systems (cooling flush or barrier fluid) are equally critical.

Dry gas seals are recommended for compressor applications, high-purity gas handling, and equipment where zero liquid leakage and zero face contact friction are required. They operate with a controlled gas film between non-contacting faces, generating no heat and no wear. Typical applications include centrifugal compressors, gas turbines, and reactor systems handling toxic or flammable gases above 10 bar.

The most frequent mistakes include selecting seals based solely on shaft size without confirming pressure and temperature ratings, using incompatible elastomer materials for the process media, installing component seals without verifying setting length, and neglecting seal support system requirements. Each of these errors can reduce seal life by 50% or more. Working with an experienced seal manufacturer during the specification phase pr