| Customization: | Available |
|---|---|
| Structure: | Single End |
| Pressure: | Medium Pressure Mechanical Seals |
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The QT-10R is a high-performance, balanced single-spring mechanical seal designed for rotary equipment in industrial and chemical applications. Its robust construction ensures reliable operation under varying pressures, temperatures, and speeds, making it suitable for pumps, mixers, and compressors. The seal's modular design allows customization to meet specific operational demands.
Type: Rotary, single-spring, pusher-type seal with dynamic O-ring.
Balance Ratio: 0.7 (optimized to reduce face loading and extend lifespan).
Spring Configuration: Stainless steel coil spring (resistant to corrosion and fatigue).
Alignment: Self-aligning design compensates for minor shaft misalignment.
| Material | Properties | Applications |
|---|---|---|
| Silicon Carbide (SiC) | High thermal conductivity, excellent wear resistance | Aggressive fluids, high-speed use |
| Tungsten Carbide (WC) | Extreme hardness, corrosion-resistant | Abrasive media, high-pressure |
| Carbon Graphite | Self-lubricating, thermal shock resistant | General-purpose, water/oil |
| Material | Temperature Range | Chemical Resistance |
|---|---|---|
| Ethylene Propylene (EPDM) | -30°C to +150°C (-22°F to +302°F) | Steam, alkalis, polar solvents |
| Nitrile (NBR) | -20°C to +100°C (-4°F to +212°F) | Petroleum oils, water, mild acids |
| Perfluoroelastomer | -15°C to +200°C (+5°F to +392°F) | Broad chemical resistance |
Housing/Spring: Stainless steel (SS316 for corrosive environments).
Hardware: Plated carbon steel or optional Hastelloy for acidic media.
Pressure: 0 to 1.5 MPa (217 psi) standard; up to 3.0 MPa (435 psi) with reinforced design.
Temperature: -30°C to +200°C (-22°F to +392°F); short-term peaks to +220°C (+428°F).
Speed: ≤25 m/s (82 ft/s) with lubrication; ≤15 m/s (49 ft/s) for dry-running variants.
PV Value: ≤50 MPa·m/s (seal face load limit).
Leakage Rate: <5 mL/hr (under standard conditions).
Service Life: 15,000-20,000 hours in clean fluids; 8,000-12,000 hours in abrasive media.
| Shaft Diameter (mm) | Shaft Diameter (inches) | Seal Face Width (mm) |
|---|---|---|
| 15-25 | 0.6-1.0 | 6.0 |
| 25-50 | 1.0-2.0 | 8.0 |
| 50-100 | 2.0-3.9 | 10.0 |
Shaft Runout: ≤0.05 mm (0.002 in).
Face Flatness: ≤0.0003 mm (3 light bands).
Compatible Media: Water, hydraulic oils, glycols, alcohols, hydrocarbons, and mild acids/bases (pH 4-10).
Incompatible Media: Strong oxidizers (e.g., chlorine), concentrated sulfuric acid, and slurries with >5% solids content.
Quality: ISO 9001:2015 compliant.
Safety: ATEX (optional for explosive environments).
Industry: Meets EN 12756 and API 682 (Type 1) requirements.
Shaft Preparation: Clean and polish shaft to Ra ≤0.8 μm (32 μin).
Lubrication: Apply compatible grease to elastomers during assembly.
Torque: Tighten set screws to 10-12 N·m (7.4-8.9 lb·ft).
Inspection: Check seal faces for wear every 6 months in harsh conditions.
Replacement: Replace elastomers every 2 years or after exposure to extreme temperatures.
Industries: Chemical processing, oil & gas, pharmaceuticals, food & beverage.
Equipment: Centrifugal pumps, agitators, compressors, refrigeration systems.
Base Model: QT-10R-[Shaft Size] (e.g., QT-10R-50 for 50 mm shaft).
Options:
Coated Faces: Diamond-like carbon (DLC) for extended wear.
Flush Ports: For API Plan 21/32 systems.
The QT-10R mechanical seal combines advanced materials and precision engineering to deliver durability across diverse operational conditions. Custom configurations are available to address specific challenges, such as high solids content or cryogenic temperatures. For detailed performance curves or material test reports, consult the manufacturer's datasheets.
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