Audited Supplier
Structure Description
Our product is equivalent to the Carte-DN, Carte Dual Seals, Carte ANSI Dual Seals, offering you reliable alternatives for various sealing needs.
This is a double cartridge mechanical seal designed for demanding applications.
Featuring a multiple spring design and balanced construction, this is our most popular and versatile seal.
Operating Limits
Temperature: -50-204ºC, ensuring high performance in extreme conditions.
Speed: Up to 23m/s, suitable for high-speed operations.
Pressure: Withstands pressures up to 20 bar, ideal for tough environments.
Standard Size: Available in 25-100mm or 1″-4.00″, accommodating various setup requirements.
Material:
Seal ring: Made from top-grade Car, Sic, Ssic, TC materials for durability and efficiency.
Secondary seal: High-quality NBR, EPDM, Kalrez to ensure resilience and longevity.
Spring and metal parts: Crafted from robust materials such as 304, 316, and HAST.C for superior strength and performance.
How to choose the material of the mechanical seal
The sealing performance and service life of the mechanical seal are related to the material of the zero mechanical seal parts, especially the material of the end seal (friction pair), the material of the auxiliary seal and the material of the spring.
First, the material of the end face sealing friction pair
The friction pair materials include graphite, ceramics, hardfacing alloys, tungsten carbide alloys, SiC, filled polytetrafluoroethylene, tin bronze, steel bonded carbide, stainless steel, phenolic plastic, nylon, and the like.
Tungsten Carbide Alloy Metal carbides with high hardness and high melting point, such as tungsten carbide and titanium carbide, are formed by powder metallurgy with binder and pressed and sintered. The advantage is that the hardness and strength are very high. Wear resistance, high temperature resistance, corrosion resistance, low coefficient of linear expansion, the disadvantage is that it is brittle and difficult to process. Tungsten carbide is the most widely used end seal material, and is used as a static ring for medium and low speed mechanical seals and a dynamic ring for high speed mechanical seals.
Why choose us?
1. How we guarantee our quality?
1. Our seals can replace the original seals.
2. We strictly follow DIN24960,ISO3069, EN12756,API628 standards.
3. If it is not the one you need ,you can provide us your pump model or your drawing ,material ,shaft size for quotation.
4. We can make whatever mechanical seal you need
5. Customized products and OEM is welcomed
6. We offer Factory Price, High Quality ,Fast Delivery and Best Service.
2. Strict QC control
QC1: Always checking quality for all raw materials before putting it in warehouse;
QC2: Staff in workshop only dedicated to quality inspection during production;
QC3: Optical flat test after lapping;
QC4: Dimension checking for all spare parts before assembly;
QC5: Static&Rotating leakage test after assembly.
3. Good package:
All mechanical seals are packed separately with shock-proof film to ensure their safety, for heavy items, they will be packed inside plywood
