STANDARD CARTRIDGE MECHANICAL SEALS
Standard cartridge seals
Overview
Our standard cartridge seals are suitable for a wide range of applications across the chemical, pulp and paper, power generation, food and beverage, water and wastewater, and mining industries.
Designed to fit standard ANSI, DIN / ISO seal chambers, standard cartridge seals can also be used in a variety of other rotating equipment.
Our standard cartridge seal range can help reduce installation times, lower maintenance costs and optimise equipment performance.
Explore our standard cartridge seal solutions
Type 4615
General-purpose single cartridge metal bellows seal
The 4615 is a metal bellows seal that replaces the EZ-1® General-purpose Single Cartridge Seal. It is a member of the 4600 family of cartridge seals…
Type 5615/5615Q/5615L
Universal cartridge seal family — single cartridge metal bellows seal
As the first truly universal cartridge seal, the modular family concept of John Crane's Universal Cartridge Seal series will…
Type 5625/5625P
Universal cartridge seal family — dual cartridge metal bellows seal
The 5600 Series is the first truly universal cartridge seal — and the modular family concept of John Crane's Universal Cartridge will change your approach…
Type 5625P-1
Universal cartridge seal family — API 682 qualified dual cartridge unpressurized/pressurized metal bellows seal
High-performance, low-emission, non-pusher seals, the Universal Cartridge 5600-1 Series is a modular...
Type SB1
Single, heavy-duty cartridge seals
The Safeseal Type SB1 is a single-cartridge seal for use with clean fluids and lubricants. It is versatile and easy to install and maintain...
Type SBW
Heavy-duty single-cartridge seals with non-pressurized quench
The Safeseal Type SBW is a single-cartridge seal used with unpressurized quench. The Type SBW seal can be used in many general industry applications...
Type SB2/SB2A O-Ring Pusher Seals
Heavy-duty dual-cartridge seals
The Safeseal Type SB2/Type SB2A is a dual-cartridge seal. Its double-balanced design ensures the reliability...
IN MORE DETAIL
How do cartridge seals work?
Standard cartridge seals operate by creating a reliable sealing environment in rotating mechanical equipment to prevent leakage.
The cartridge seal’s pre-engineered, self-contained design simplifies installation while ensuring effective and reliable sealing under various conditions.
John Crane Performance Plus™
John Crane Performance Plus™ is our modular service framework, supported by the largest mechanical seal service network, with over 200 manufacturing, sales and service centres globally. That means we are where you need us, when you need us – empowering people, plant and performance.
Common questions
What is a standard cartridge mechanical seal?
A standard cartridge mechanical seal is a pre-assembled, self-contained seal designed for rotating equipment. John Crane’s standard cartridge seals simplify installation, reduce maintenance and provide reliable performance across industries such as chemical, pulp and paper, power generation, and water treatment.
How do I know if a standard cartridge seal is right for my equipment?
Standard cartridge seals fit most ANSI and DIN/ISO seal chambers and are suitable for a variety of rotating equipment. If you need a seal for chemical pumps, water pumps or other industrial applications, John Crane’s portfolio offers options to meet your operational requirements. For more advice, contact us today.
Can standard cartridge seals reduce maintenance downtime?
Yes. The pre-engineered, self-contained design of John Crane standard cartridge mechanical seals reduces installation time and simplifies maintenance, helping plants minimise downtime while ensuring reliable sealing performance.
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