| Customization: | Available |
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| Structure: | Single End |
| Pressure: | Medium Pressure Mechanical Seals |
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| Parameter | QT-H12N Specifications |
|---|---|
| Product Type | Single-Ended Mechanical Seal (Cartridge Type) |
| Model | QT-H12N |
| Material Composition | |
| - Primary Seal Face | Silicon Carbide (SiC) with High-Purity Graphite Overlay |
| - Secondary Seal Elements | Ethylene Propylene Diene Monomer (EPDM) Rubber Components |
| - Housing/Retainer Material | Austenitic Stainless Steel (316L) |
| - Fasteners & Hardware | Nickel-Plated Alloy Steel |
| Operating Parameters | |
| - Maximum Pressure | 12 Bar (174 psi) |
| - Temperature Range | -20°C to +150°C (-4°F to +302°F) |
| - Shaft Diameter Range | 25 mm to 100 mm (0.984" to 3.937") |
| - Maximum Rotational Speed | 3500 RPM |
| - Axial Runout Tolerance | ≤0.05 mm (≤0.00197") |
| - Radial Clearance Tolerance | 0.10 mm to 0.30 mm (0.0039" to 0.0118") |
| Fluid Compatibility | |
| - Compatible Media | Water-Based Solutions, Mineral Oils, Aliphatic Hydrocarbons, Weak Acids (<pH 6) |
| - Incompatible Media | Strong Oxidizing Agents, Aromatic Solvents, Halogenated Hydrocarbons |
| Seal Design Features | |
| - Seal Face Geometry | Double-Planar Hydrodynamic Groove Pattern |
| - Lubrication Mechanism | Hydrostatic Film Formation with Self-Compensating Design |
| - Installation Type | Push-Type Cartridge (No Special Tools Required) |
| - Direction of Rotation | Bi-Directional (Suitable for Clockwise/Counter-Clockwise Rotation) |
| Performance Metrics | |
| - Leakage Rate (Standard) | ≤5 ml/h at 10 Bar (Water at 20°C) |
| - Service Life Expectancy | 8,000 to 12,000 Operating Hours (Depending on Media and Conditions) |
| - Vibration Level (at Max Speed) | ≤2.5 mm/s (RMS) |
| Environmental Compliance | |
| - Certification Standards | ISO 21049:2004 (Rotodynamic Pumps - Shaft Sealing Systems), FDA 21 CFR Part 177 (for EPDM) |
| - Noise Emission | ≤75 dB(A) at 1 m Distance |
| Physical Dimensions | |
| - Overall Length (Cartridge) | 115 mm to 185 mm (4.528" to 7.283") (Varies by Shaft Size) |
| - Housing Outer Diameter | 60 mm to 130 mm (2.362" to 5.118") (Varies by Shaft Size) |
| - Spring Rate | 85 N/mm ±10% |
| Installation & Maintenance | |
| - Recommended Alignment Tolerance | Angular: ≤0.5°; Parallel: ≤0.1 mm/100 mm |
| - Torque for Fastening | 12 N·m to 18 N·m (Varies by Hardware Size) |
| - Reconditioning Capability | Reusable with Replacement of Secondary Seals (Recommended Every 6,000 Hours) |
| Testing & Quality Assurance | |
| - Pressure Test Criteria | 1.5× Rated Pressure for 30 Minutes (No Leakage Detected) |
| - Dynamic Balance Grade | G2.5 (According to ISO 1940-1:2003) |
| - Surface Finish (Seal Faces) | Ra ≤0.2 μm (Seal Face); Ra ≤1.6 μm (Shaft Contact Area) |
| Industry Applications | |
| - Typical Use Cases | Centrifugal Pumps, Mixing Equipment, Agitators in Chemical Processing, Water Treatment, and Food & Beverage Industries |
| - Not Recommended For | High-Vacuum Systems, Pulp & Paper Mills with Abrasive Slurries, or Cryogenic Environments |
Shanghai Queeny Mechanical Equipment Co.,Ltd.is an enterprise specializing in the R&D,manufacture and export of mechanical seal products,headquartered in Pudong New Area,Shanghai.Our products mainly include component seals,dry gas seals,metal bellows seals,mixer and agitator seals,single & dual cartridge seals,silicon carbide parts and tungsetn carbide parts,which can replace John Crane, Burg-mann, AES, Chesterton,Flowserve,Rotenand other similar products,they are widely used in water treatment,petroleum,chemical,food,medical and other industries.
Q1: Are you a trading company or a factory?
We are a factory, so we can offer you factory prices with high quality.
Q2: Can I get samples?
Yes. You can ask for samples. Usually it's free, but you need to pay for shipping.
Q3: Can l use my own logo or design on the goods?
Yes, we provide OEM/ODMservices; your logo and design can be printed on the products.
Q4: What are your payment terms?
We accept T/T, Paypal, Western Union, and credit card payment is also welcome.
Q5: How about the delivery time?
For stock items, we can ship immediately after receiving the payment.
For other products, we need 14-25 days for mass production, which depends on the quantity and type of order.
Q6: How can we ensure the quality?
Pre-production samples are required before mass production;Final inspection is required before shipment;
Q7: 1 can't find our products in your catalog, can you customize the products for us?
Yes, customized products are available, OEM is welcome.
Q8: Can l buy pumps or pump parts from your company?
Yes, we also provide pumps and pump parts.
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