Jiaxing Burgmann Mechanical Seal Co., Ltd. Jiashan King Kong Branch

1. Process: RBSC forms via reaction bonding with residual silicon; PLSSC sinters at high temp without external pressure. 2. Density & Porosity: RBSC is low-density with porosity; PLSSC is high-density, almost fully dense. 3. Performance: RBSC has good impact resistance; PLSSC excels in hardness, corrosion resistance and high-temperature stability. 4. Cost: RBSC is cost-effective; PLSSC is more expensive due to complex process.     Jiaxing Burgmann Mechanical Seal Co., Ltd Email: doris@mechanicalseal.com.cn Skype: kathysunlin Fax: 86-573-84072317 Mob: 86-15381220188 WhatsApp: 8615958372402 Website: www.industrial-mechanicalseals.com Add: A-5 Wanyangzhongchuangcheng, Ganyao Town, Jiashan county, Jiaxing, Zhejiang, China. 314107

1. Ensure the shaft surface finish meets requirements (Ra 0.2-0.4μm) and no scratches, burrs or corrosion exist before installation. 2. Clean all seal components (stationary ring, rotating ring, spring, O-ring) with clean solvent; avoid dust, impurities or oil residue. 3. Check the perpendicularity of seal chamber end face to shaft (tolerance ≤0.05mm) and coaxiality of shaft (runout ≤0.03mm) strictly. 4. Apply appropriate food-grade lubricant to O-rings and sliding surfaces for smooth assembly; do not use lubricant containing particles. 5. Install stationary ring and rotating ring carefully, avoid collision or deformation; ensure the sealing faces fit tightly without tilting. 6. Adjust spring compression amount accurately according to technical drawing; over-compression or under-compression will cause seal failure. 7. Keep the installation direction of spring consistent; ensure no jamming during shaft rotation. 8. After assembly, rotate the shaft manually for 3-5 circles to confirm flexible rotation without stuck or abnormal noise. 9. Vent the seal chamber completely before startup to avoid air locking; ensure full medium filling in the sealing system. 10. Run the equipment at low speed first for 10-15 minutes, check for leakage, temperature rise and abnormal vibration before normal operation. 11. Avoid dry running of mechanical seal; ensure sufficient lubrication and cooling during operation. 12. Do not hit the seal components with hard tools during installation to prevent damage to sealing faces.     Jiaxing Burgmann Mechanical Seal Co., Ltd Email: doris@mechanicalseal.com.cn Skype: kathysunlin Fax: 86-573-84072317 Mob: 86-15381220188 WhatsApp: 8615958372402 Website: www.industrial-mechanicalseals.com Add: A-5 Wanyangzhongchuangcheng, Ganyao Town, Jiashan county, Jiaxing, Zhejiang, China. 314107

1. A mechanical seal is a critical component used to prevent fluid leakage in rotating equipment like pumps, mixers and compressors. 2. It mainly consists of stationary ring, rotating ring, spring, auxiliary seal and gland, forming a sealed face via precise fitting. 3. The sealed faces (rotating & stationary) are the core part, requiring high flatness to ensure tight sealing under pressure. 4. Mechanical seals are divided into single-end, double-end, balanced and unbalanced types based on structure and working principle. 5. Temperature, pressure, medium corrosiveness and rotational speed are key factors affecting mechanical seal service life. 6. Common materials for seal faces include silicon carbide, tungsten carbide, alumina ceramic and carbon graphite for good wear resistance. 7. Auxiliary seals are usually made of fluororubber, nitrile rubber or PTFE to adapt to different media and temperatures. 8. Proper installation with accurate alignment can avoid premature wear and leakage of mechanical seals. 9. Regular cleaning and lubrication of the seal area help maintain its sealing performance and extend service life. 10. Mechanical seals have better sealing effect and longer service life than traditional packing seals in industrial applications.   Jiaxing Burgmann Mechanical Seal Co., Ltd Email: doris@mechanicalseal.com.cn Skype: kathysunlin Fax: 86-573-84072317 Mob: 86-15381220188 WhatsApp: 8615958372402 Website: www.industrial-mechanicalseals.com Add: A-5 Wanyangzhongchuangcheng, Ganyao Town, Jiashan county, Jiaxing, Zhejiang, China. 314107

Chemical cartridge seal assembly is safe, precise, and standardized—follow this concise step-by-step guide for leak-free results, with emphasis on cleanliness, alignment, and no impact force. Pre‑Assembly Prep - Safety First: Wear chemical‑resistant PPE (gloves, goggles, apron); work in a ventilated area with spill kits. - Inspect: Check cartridge for damage; verify all components (gland, O‑rings, set screws, springs) match the model; discard if seal faces are chipped/scratched. - Shaft/Chamber Prep: Clean shaft/sleeve (Ra 0.2–0.4 μm) and seal chamber; confirm shaft runout ≤0.1 mm; remove burrs/scale. - Lubricant: Use medium‑compatible lubricant (e.g., fluorine‑based for corrosives) to avoid contamination. Step‑by‑Step Assembly 1. Lubricate: Apply a thin, even film to seal faces, elastomer contacts, and shaft/sleeve installation area—no excess. 2. Gasket Prep: Fit gland/drive collar gaskets (use silicone grease to hold in place); avoid sharp tools . 3. Install Cartridge: Align with shaft; push evenly axially (no hammers); rotate shaft by hand while pushing to ensure smooth seating. 4. Gland Fastening: Mount gland to seal chamber; tighten bolts diagonally/alternately (finger‑tight first, then incrementally) to avoid warping . 5. Set Collar/Set Screws: Adjust drive collar gap per spec (e.g., 3/32” for 33–65 mm shafts); tighten set screws evenly (align with drilled holes if applicable) . 6. Release Locking Devices: Remove/rotate spacers/locking washers to clear the sleeve; do not skip this step . 7. Final Checks: Rotate shaft manually to confirm no binding; verify all fasteners are tight and seal faces are clean/free of debris . Post‑Assembly & Startup - Reassemble pump, align coupling, and check for pipe strain . - Perform a leak test (air/water) before introducing process media. - Start the pump slowly; monitor for leaks, unusual noise, or excessive temperature rise. Key Do’s & Don’ts - ✅ Do use only manufacturer‑approved lubricants and tools. - ✅ Do maintain axial alignment throughout installation. - ❌ Don’t strike the cartridge or seal faces with hard tools. - ❌ Don’t over‑tighten bolts/screws (risk of deformation/leakage). - ❌ Don’t mix incompatible lubricants with the process medium. Critical Notes - Follow the seal manufacturer’s manual for model‑specific settings (gap dimensions, torque values, and locking features). - For dual‑cartridge seals, ensure proper flush/barrier fluid connections before startup. Jiaxing Burgmann Mechanical Seal Co., Ltd Email: doris@mechanicalseal.com.cn Skype: kathysunlin Fax: 86-573-84072317 Mob: 86-15381220188 WhatsApp: 8615958372402 Website: www.industrial-mechanicalseals.com Add: A-5 Wanyangzhongchuangcheng, Ganyao Town, Jiashan county, Jiaxing, Zhejiang, China. 314107