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

Mechanical seal flushing plans are standardized piping arrangements defined by API 682 to cool, lubricate, clean, and pressurize seal chambers, extending seal life and ensuring reliable operation. Below are the most common plans with concise English descriptions for technical documentation and catalogs.   Basic Internal Recirculation Plans   - Plan 01 Internal flow passages within the pump casing circulate process fluid to the seal chamber without external piping. Simple, low-cost, and suitable for clean, low-temperature services.   - Plan 11 Process fluid recirculates from the pump discharge through a flow-control orifice to the seal chamber. The most widely used plan for clean fluids, providing effective cooling and lubrication with minimal complexity .   - Plan 13 Fluid flows from the seal chamber back to the pump suction via a restricted orifice. Ideal for vertical pumps to prevent vapor locking and ensure continuous venting .   Cooled & Filtered Recirculation Plans   - Plan 21 Discharge fluid passes through a heat exchanger (cooler) and flow-control orifice before entering the seal chamber. Designed for high-temperature applications to lower seal chamber temperature .   - Plan 22 Combines Plan 21 with a Y-strainer to filter solids from the recirculating fluid. Suited for fluids with light particulate contamination .   - Plan 23 Closed-loop circulation with a dedicated heat exchanger; fluid is pumped from the seal chamber, cooled, and returned. Highly efficient for extreme-temperature services, minimizing process fluid usage .   External & Specialized Plans   - Plan 32 Clean, compatible fluid from an external source is injected directly into the seal chamber. Used for dirty, polymerizing, or high-solids fluids to isolate the seal from process contaminants .   - Plan 41 Recirculation with a cyclone separator to remove solids from the flush stream. Effective for fluids with moderate to high solid content .   Dual Seal Support Plans   - Plan 52 Unpressurized buffer fluid system for dual seals; circulates buffer fluid between inner and outer seals with a reservoir and heat exchanger. Used for toxic or hazardous fluids .   - Plan 53A/B/C Pressurized barrier fluid systems for dual seals, maintaining barrier fluid pressure above process pressure to prevent leakage. Available with bladder accumulators (53A), piston accumulators (53B), or external pumping (53C) .   - Plan 54 Pressurized barrier fluid supplied from an external source to dual seals. Suitable for critical, high-pressure, or corrosive applications requiring continuous clean fluid supply .   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

Selecting the right materials for mechanical seals is critical to ensuring leak-tight performance, long service life, and reliable operation in industrial applications. The selection process must be guided by the operating environment, medium characteristics, and mechanical requirements—here’s a systematic breakdown of the key principles and practices: 1. Prioritize Compatibility with the Sealed Medium The sealed medium (liquid, gas, or slurry) is the primary determinant of material selection. Focus on three core properties: - Corrosiveness: Choose corrosion-resistant materials for aggressive media (e.g., acids, alkalis, solvents). Silicon Carbide (SiC) and Tungsten Carbide (WC) excel in corrosive environments, while elastomers like Fluororubber (FKM) or Perfluoroelastomer (FFKM) resist chemical degradation better than Nitrile Rubber (NBR). - Abrasiveness: For media containing solids (e.g., slurries, pigments), opt for hard, wear-resistant face materials. Tungsten Carbide (WC) with cobalt binder or reaction-bonded Silicon Carbide (RBSC) offers superior abrasion resistance; pair with a softer carbon graphite secondary face to minimize friction. - Temperature & Pressure: High-temperature (above 200°C) or high-pressure (above 10 bar) conditions demand materials with thermal stability and mechanical strength. Silicon Carbide (SiC) maintains hardness at extreme temperatures, while PTFE (Polytetrafluoroethylene) is ideal for low-friction, high-temperature elastomer applications. 2. Ensure Seal Face Pairing Compatibility Mechanical seal faces require a "hard-soft" pairing to balance wear resistance and sealing efficiency: - Common pairings: WC vs. Carbon Graphite, SiC vs. Carbon Graphite, or SiC vs. SiC (for ultra-high purity or non-abrasive media). - Avoid pairing two hard materials (e.g., WC vs. WC) as they cause excessive friction and premature failure; avoid two soft materials (e.g., Carbon Graphite vs. Carbon Graphite) for abrasive or high-pressure scenarios. 3. Align with Operating Conditions - Rotational Speed: High-speed applications (above 3000 RPM) need materials with low friction coefficients and high thermal conductivity. SiC and WC are preferred for their ability to dissipate heat, while PTFE-filled carbon graphite reduces friction. - Shaft Runout & Misalignment: For applications with moderate shaft runout, elastomers like EPDM (Ethylene Propylene Diene Monomer) offer flexibility, while rigid face materials (SiC, WC) suit precise alignment. - Environmental Constraints: Food, pharmaceutical, or drinking water applications require FDA-approved materials (e.g., PTFE, EPDM, or 316 stainless steel metal components) to ensure non-toxicity and compliance. 4. Reference Common Material Selection Guidelines Material Type Key Advantages Typical Applications Silicon Carbide (SiC) High hardness, corrosion/wear resistance Aggressive media, high-temp/pressure systems Tungsten Carbide (WC) Exceptional abrasion resistance Slurries, abrasive fluids, heavy-duty pumps Carbon Graphite Low friction, self-lubricating Low-abrasive media, low-to-medium speed pumps Fluororubber (FKM) Chemical resistance, high temp tolerance Oil, solvents, high-temperature applications PTFE Non-stick, chemical inertness Corrosive chemicals, food-grade applications By integrating medium compatibility, face pairing logic, and operating condition alignment, you can select mechanical seal materials that optimize performance, reduce maintenance costs, and prevent unplanned downtime.   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. 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

Selecting the correct materials for a mechanical seal is crucial for reliability, longevity, and safety. The process involves matching the seal materials to the process fluid, operating conditions, and regulatory requirements. Below is a step-by-step guide. 1. Define the Application Requirements 1. Process Fluid: - Chemical composition (acids, bases, solvents, hydrocarbons, etc.). - Concentration and temperature. - Presence of solids (abrasives), gases, or dissolved oxygen. 2. Operating Conditions: - Pressure (inside the pump and ambient). - Temperature (minimum and maximum). - Shaft speed (RPM). - Shaft diameter and type (solid shaft or sleeve). 3. Regulatory & Safety Requirements: - FDA, USP, or other industry standards (for food, pharmaceutical, or biotech applications). - Emission limits (VOCs, hazardous fluids). 2. Select the Seal Face Materials The seal faces are the primary wear components and must resist both chemical attack and wear. Common combinations are: 1. Hard Face Materials: - Silicon Carbide (SiC): Excellent wear resistance, chemical resistance, and thermal conductivity. Ideal for most applications, especially with abrasive fluids. - Tungsten Carbide (WC): Good wear resistance, but less chemically resistant than SiC. Suitable for hydrocarbons and non-corrosive fluids. - Ceramic (Al₂O₃): Good chemical resistance, but brittle. Used in low to medium pressure, non-abrasive applications. 2. Soft Face Materials: - Carbon Graphite: Self-lubricating, good for many fluids. Used with hard faces (SiC, WC, ceramic). - PTFE/Carbon Composite: For highly corrosive fluids or FDA applications. Common Face Combinations: - SiC vs. Carbon Graphite (most general-purpose applications). - SiC vs. SiC (abrasive fluids, high wear). - WC vs. Carbon Graphite (hydrocarbons, low to medium abrasion). - Ceramic vs. Carbon Graphite (non-abrasive, corrosive fluids). 3. Select the Elastomer Materials Elastomers (O-rings, bellows, gaskets) must resist   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

Assembly of Chemical Cartridge Mechanical Seals Chemical cartridge mechanical seals are widely used in chemical processing due to their pre-assembled design, which simplifies installation and ensures sealing reliability. Below is a detailed, professional assembly process tailored to chemical application scenarios: 1. Pre-Assembly Preparation - Component Inspection: Check the cartridge seal for intactness—ensure no scratches, cracks, or debris on the seal faces (common materials like silicon carbide or tungsten carbide), and verify that elastomers (e.g., Viton for corrosives) are free of aging, swelling, or damage. Confirm all accessories (springs, set screws, gland plates) are complete and match the model. - Equipment Preparation: Clean the pump shaft, sleeve, and seal chamber thoroughly to remove chemical residues, scale, or solid particles, as contaminants can cause seal face damage. Measure shaft runout (must be ≤0.1mm) and surface roughness (Ra 0.2–0.4μm) to meet assembly requirements. Prepare compatible lubricant (consistent with the chemical medium, e.g., fluorine-based lubricant for strong corrosives) to avoid medium contamination. - Safety Precautions: Wear chemical-resistant gloves, goggles, and protective clothing, especially when handling toxic, corrosive, or flammable media. Ensure the work area is well-ventilated and equipped with emergency spill treatment tools. 2. Step-by-Step Assembly - Lubrication Treatment: Apply a thin, uniform layer of compatible lubricant to the seal faces, elastomer contact surfaces, and the pump shaft/sleeve where the seal installs. This reduces friction during assembly and prevents dry rubbing damage to the seal faces. - Cartridge Installation: Align the cartridge seal with the pump shaft, ensuring the seal chamber mating surface is clean and flat. Push the cartridge evenly along the axial direction—do not use hammers or hard tools to strike, as this can deform the seal face or damage internal springs. Rotate the shaft manually while pushing to ensure smooth installation without jamming. - Positioning and Fixing: Adjust the cartridge to the correct axial position according to the manufacturer’s specifications. Tighten the set screws or fixing bolts evenly in a crisscross pattern to avoid uneven force that could cause shaft misalignment. Ensure the compression amount of the internal spring meets requirements (typically 2–5mm, check with calipers if necessary). - Auxiliary System Connection: If the seal is equipped with a cooling, flushing, or barrier fluid system (common for double cartridge seals in chemical applications), connect the pipelines tightly. Ensure the flow direction and pressure of the fluid meet design standards—for example, the barrier fluid pressure should be 0.1–0.2MPa higher than the medium pressure to prevent medium leakage. 3. Post-Assembly Inspection and Test Run - Pre-Run Check: Rotate the pump shaft manually for 3–5 full rotations to confirm smooth operation without abnormal resistance. Inspect all connections for looseness, and check the seal chamber and pipeline for pre-leakage. - Test Run Procedure: Start the pump at low load first, monitoring the seal’s leakage rate (should be ≤5ml/h for liquid chemicals) and the temperature of the seal chamber (should not exceed the medium temperature by 20°C). Gradually increase to normal operating load, continuing to observe for abnormal noises, excessive temperature rise, or increased leakage. - Problem Handling: If leakage exceeds the limit or abnormal phenomena occur during the test run, stop the pump immediately. Check for improper installation (e.g., spring compression, shaft misalignment) or component damage, and rectify before restarting. I can help you create a customized assembly checklist for your specific chemical cartridge seal model, including detailed parameter requirements and safety notes for your applied chemical medium. Do you need me to formulate this personalized document?   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

Mechanical seal failure is often caused by improper selection, incorrect installation, harsh operating conditions, or poor maintenance. Here are the most common causes: 1. Improper Material Selection - Incompatibility with the medium: Elastomers swell/corrode (e.g., using nitrile rubber in strong oxidants), or seal faces are worn/corroded by abrasive/corrosive fluids. - Mismatched temperature/pressure resistance: Materials exceed their limits, leading to deformation, aging, or cracking. 2. Installation and Assembly Errors - Damage to seal faces: Scratches from impurities or improper handling (e.g., hammering during installation). - Incorrect spring compression: Too much compression causes excessive wear; too little leads to insufficient sealing force and leakage. - Shaft misalignment or excessive runout: Shaft runout exceeding 0.1mm causes uneven contact between seal faces, accelerating wear. 3. Abnormal Operating Conditions - Dry running: Lack of lubrication between seal faces leads to instantaneous high temperature, burning or melting the faces. - Fluctuations in temperature/pressure: Sudden changes cause thermal shock or seal face deformation, breaking the sealing interface. - Solid particle contamination: Particles enter the seal face gap, causing scratches and abrasive wear. 4. Poor Maintenance and Management - Neglected leakage monitoring: Failure to detect excessive leakage in time leads to further damage. - Improper cooling/lubrication: Insufficient cooling fluid flow or high temperature causes seal overheating. - Aging of components: Elastomers, springs, or other parts degrade over time without timely replacement. I can help you conduct a targeted failure cause analysis based on your specific mechanical seal model, operating parameters, and failure phenomena (e.g., leakage type, seal face damage status). Do you need this professional analysis service?   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

Installation and Maintenance of Mechanical Seals 一、Standard Installation Procedures 1. Pre-Installation Preparation: Inspect the seal for damage (e.g., scratches on seal faces, aging of elastomers) and clean all components (shaft, sleeve, seal chamber) to remove impurities. Verify that shaft runout is within 0.1mm and the surface roughness of the shaft/sleeve mating with the seal is Ra 0.2–0.4μm. 2. Assembly Operations: Apply a thin layer of compatible lubricant (consistent with the medium) to the seal faces, elastomers, and shaft surface. Install elastomers first, then press the seal cartridge evenly onto the shaft without hammering to avoid damaging the seal faces. Ensure the seal is axially positioned correctly and the compression amount of the spring meets the manufacturer’s specifications (typically 2–5mm). 3. Post-Installation Check: Rotate the shaft manually to confirm smooth operation without jamming. Connect the cooling/barrier fluid system (if applicable) and check for leaks in the pipeline. 二、Key Maintenance Measures 1. Regular Inspection: Periodically monitor the leakage rate (should be ≤5ml/h for liquids), operating temperature (seal chamber temperature should not exceed the medium temperature by 20°C), and abnormal noises. Record operating data to track performance changes. 2. Lubrication and Cooling Management: Maintain stable supply of cooling/barrier fluid, ensuring the flow rate and temperature meet requirements (e.g., cooling water temperature ≤35°C). Avoid dry running of the seal, which can cause instantaneous burnout of the seal faces. 3. Replacement Criteria: Replace the seal immediately if leakage exceeds the limit, the seal face is severely worn/cracked, or elastomers show swelling, aging, or cracking. After replacement, conduct a test run under low load to confirm normal operation. 4. Storage Requirements: Unused seals should be stored in a dry, clean environment at room temperature, avoiding direct sunlight and contact with corrosive substances. Seal faces should be protected with anti-corrosion film to prevent damage. 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

The key performance parameters of mechanical seals directly determine their adaptability and reliability in specific applications, with the following core indicators: 1. Operating Temperature Range Reflects the seal's tolerance to fluid temperature, typically ranging from -200°C (for cryogenic media like liquid nitrogen) to 500°C+ (for high-temperature fluids like steam). Exceeding the range will cause elastomer aging, seal face deformation, or even failure. 2. Maximum Operating Pressure The maximum pressure the seal can withstand under rated conditions, ranging from vacuum (for low-pressure systems) to 40MPa+ (for high-pressure pumps/compressors). Pressure affects seal face contact force; insufficient or excessive force leads to leakage or accelerated wear. 3. Speed Limit The maximum rotational speed compatible with the seal, related to shaft diameter and seal structure. It ranges from low-speed (3000rpm for centrifugal compressors). Excessive speed causes heat accumulation and seal face damage. 4. Leakage Rate The amount of fluid leaking through the seal interface, a critical indicator of sealing performance. For liquids, it’s usually

1. Pre-Installation Prep: Clean the shaft, seal cavity, and cartridge; check for shaft runout (≤0.05mm) and surface scratches. 2. Cartridge Mounting: Slide the cartridge onto the shaft, align the seal cavity flange, and hand-tighten bolts evenly. 3. Set Axial Clearance: Rotate the shaft to seat the seal faces, use a feeler gauge to adjust clearance to manufacturer’s specs (typically 0.3-1mm). 4. Lock Position: Tighten flange bolts per torque requirements, then secure the cartridge’s anti-rotation pin. 5. Final Checks: Rotate the shaft manually to ensure smooth operation; verify lubrication/cooling circuit connectivity 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