Built for Pressure, Designed for Precision | John Crane Replacement Type 1 Rubber Mechanical Seal
The John Crane Replacement Type 1 Rubber Mechanical Seal is engineered for dependable performance and leak prevention in a wide range of rotary pump and motor applications. Designed as a direct replacement for John Crane’s Type 1 seal, it provides reliable sealing in demanding environments such as water treatment, chemical processing, HVAC systems, and general industrial use. This versatile seal features a robust rubber bellows design paired with precision lapped sealing faces made from durable materials like carbon, ceramic, and stainless steel. Its flexible construction accommodates shaft misalignment and axial movement, making it ideal for both OEM and aftermarket applications.
Its compact and adaptable design ensures seamless integration into various pump brands and configurations, reducing installation time and ensuring long-term operational efficiency. The John Crane Replacement Type 1 Rubber Mechanical Seal excels in dynamic sealing environments, where vibration, thermal expansion, and media variability challenge lesser seals. Its resistance to abrasion, corrosion, and chemical attack ensures it maintains integrity even under continuous-duty cycles. This seal is a cost-effective and performance-driven solution, trusted by maintenance professionals and OEMs alike to extend equipment life and minimize unplanned downtime.
Product Specifications
| Attribute | Specification |
|---|---|
| Product Name | John Crane Replacement Type 1 Rubber Mechanical Seal |
| Standard or Nonstandard | Standard |
| Rotary Ring | SIC |
| Stationary Ring | SIC |
| Secondary Seal | V(FKM) |
| Temperature Range | -20℃ ~ 180℃ |
| Sample | Yes (US$9.52) |
| Color | Brown |
| Size | 25.4 mm |
| Pressure Rating | Up to 1.2 MPa |
| Speed Limit | ≤15 m/s |
| Application | Industrial Pumps |
| Material Grade | Corrosion & Wear Resistant |
| Seal Type | Balanced |
| Mounting Type | Cartridge / Component |
| Spring Type | Single Spring |
| Media Compatibility | Water, Oil, Chemicals |
Why Choose John Crane Replacement Type 1 Rubber Mechanical Seal?
🔹 Compatible with pumps and systems using John Crane Type 1 seals
🔹 Bellows design provides flexibility and compensates for shaft movement
🔹 Designed for sealing water, oil, mild chemicals, and other industrial fluids
🔹 Constructed with high-quality materials such as carbon, ceramic, and stainless steel
🔹 Offers excellent chemical resistance and thermal stability
🔹 Easy installation without the need for special tools or modifications
🔹 Ideal for replacing worn-out seals in a variety of pump brands
🔹 Used in centrifugal pumps, compressors, and mixers
🔹 Built for long-term service with minimal maintenance
🔹 Trusted by maintenance engineers and OEMs for proven performance
Application of John Crane Replacement Type 1 Rubber Mechanical Seal
🔹 Water Treatment Systems – Provides effective sealing in pumps handling clean and wastewater
🔹 Chemical Industry – Resists corrosion and wear in systems processing mild chemicals and fluids
🔹 HVAC and Circulation Pumps – Ensures leak-free operation in heating, ventilation, and cooling systems
🔹 Food and Beverage Processing – Suitable for non-contaminating sealing in auxiliary equipment
🔹 Marine and Offshore Use – Performs reliably in saltwater and vibration-prone environments
🔹 General Industrial Equipment – Widely used in mixers, blenders, and rotary shafts across industries
🔹 OEM and Repair Services – Perfect for replacing John Crane seals during manufacturing or maintenance operations
Order Now – Get Your John Crane Replacement Type 1 Rubber Mechanical Seal Today!
Restore your equipment’s sealing integrity with the John Crane Replacement Type 1 Rubber Mechanical Seal—a trusted solution engineered for high performance, ease of installation, and long-lasting durability. Whether you’re servicing industrial equipment or assembling OEM systems, this replacement seal offers the same reliability as original John Crane components. Designed to minimize leakage and reduce maintenance costs, it supports operational continuity across industries. Don’t compromise on quality—choose a proven seal that meets the standards of top-tier brands and delivers performance you can count on.
