John Crane Type1 Mechanical Seal English Parameter Table & Pump Compatibility Chart
Type1 Mechanical Seal Key Parameters
Parameter Category | Specifications | Reference |
---|---|---|
Model | Type1 (Single-End Non-Balanced, Elastomer Bellows Design) | 14 |
Shaft Diameter Range | 5-80 mm (Customizable for non-standard sizes) | 34 |
Pressure Limit | ≤1.2 MPa (Standard) | 4 |
Temperature Range | -20°C to 200°C (Depends on elastomer: NBR/FKM/EPDM) | 14 |
Face Materials | Silicon Carbide (SiC) / Tungsten Carbide (WC) / Alumina Ceramic (AlO) | 12 |
Secondary Seals | Nitrile (NBR) / Fluorocarbon (FKM) / Ethylene Propylene (EPDM) | 4 |
Compatible Media | Water, Oil, Mildly Corrosive Liquids (Requires flushing for abrasive media) | 16 |
Key Design Features | - Elastomer bellows for axial flexibility - Spring-driven, bidirectional rotation support | 16 |
Installation Requirements | - Shaft radial runout ≤0.04 mm - Clean sealing chamber - Avoid dry running | 45 |
Pump Compatibility Chart
Pump Type | Compatible Type1 Models | Application Scenarios |
---|---|---|
Centrifugal Pumps | Type1-25, Type1-30, Type1-35 | Water supply, chemical transfer |
Submersible Pumps | Type1-38, Type1-50 | Wastewater treatment, marine applications |
Chemical Process Pumps | Type1-1.125", Type1-1.5" (Custom sizes) | Acid/alkali handling, reactors |
API-Compliant Pumps | Type1-2100 Series (e.g., 2100-25, 2100-40) | Oil refineries, high-pressure systems |
Boiler Feed Pumps | Type1-65, Type1-70 | Power plants, steam systems |
Special Notes
- Customization: Supports dual seals (with barrier fluid systems) and high-pressure balanced designs4.
- Industry Standards: Complies with API 682 and ISO 21009 for hazardous environments16.
- Interchangeability: Replaces legacy models like John Crane 109 series and some European equivalents







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Yes. You can ask for samples. Usually it's free, but you need to pay for shipping.
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For other products, we need 14-25 days for mass production, which depends on the quantity and type of order.
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Yes, we also provide pumps and pump parts.