Grundfos JMK Mechanical Seal Cartridge Replacement for CR/CRN Pumps - 40 Bar Pressure, -30°C to +180°C Range
Price:
USD
MOQ:
1pcs
Delivery Time:
in stock
Brand:
JG
Product Description
Grundfos JMK Mechanical Seal Replacement Cartridge
The Grundfos JMK mechanical seal is a cartridge-style replacement specifically engineered for Grundfos CR and CRN series pumps, offering simplified installation and reliable performance across diverse operating conditions.
Performance Specifications
Operating speed: Up to 20 m/s | Temperature range: -30°C to +180°C | Maximum pressure: 40 bar
Design Features
- Cartridge structure eliminates need for sealing length measurement
- Simple installation: slide on and tighten sealing cover bolts
- Ensures proper assembly quality and prevents startup leakage
Material Composition
Sealing faces: Silicon carbide or tungsten carbide for high hardness, wear resistance, and corrosion resistance
Secondary seals: Fluorine rubber or EPDM rubber compatible with various media and temperatures
Quality Assurance
- Strict quality control from raw materials to finished product inspection
- Reliable performance and extended service life
- 12-month warranty period
Technical Specifications
| Parameter | Value |
|---|---|
| Item Number | RS |
| Medium Compatibility | Water, oil, and other weak corrosive media |
| Operating Temperature | -20°C to +150°C |
| Maximum Pressure | ≤0.6 MPa |
| Linear Velocity | ≤10 m/s |
| Applications | Rotating equipment, pumps, mixers, agitators, compressors |
Sealing Ring Performance Data
Tungsten Carbide Sealing Ring
| Property | Value |
|---|---|
| Density (g/cm³) | 14-15 |
| Hardness (HS) | 87-91 |
| Elastic Modulus (MPa) | 608100 |
| Bend Strength (MPa) | 1420-2058 |
| Coefficient of Heat Expansion (10⁻⁶/°C) | 4.5-6.3 |
| Thermal Conductivity (cal/cm·s·°C) | 0.17 |
Silicon Carbide (SIC) Sealing Ring
| Property | Value |
|---|---|
| Density (g/cm³) | 3.00-3.10 |
| Hardness (HS) | 110-125 |
| Elastic Modulus (kg/mm²) | 42×10³ |
| Tensile Strength (kg/mm²) | 28 |
| Bend Strength (kg/mm²) | 34 |
| Compressive Strength (kg/mm²) | 120 |
| Thermal Conductivity (cal/cm·s·°C) | 0.3 |
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Jiaxing Burgmann Mechanical Seal Co., Ltd. Jiashan King Kong Branch
Location
No. 28 No. 28 Chengxi Road, Jiashan County, Jiaxing, Zhejiang, China 314100
Contact Person
Doris Sun