502 Bellow Type Mechanical Seal Replacement for John Crane AES B07

• Customization: Available
• Structure: Single End
• Pressure: Medium Pressure Mechanical Seals
• Model NO.: QT-502
• Speed: General Speed Mechanical Seal
• Temperature: Poor Temperature Mechanical Seal
• Performance: Wear
• Standard: Standard
• Type: Qt-502
• Balance: Unbalanced
• Transport Package: Customzed
• Specification: standard
• Trademark: Queeny
• Origin: China
• HS Code: 848420
• Production Capacity: 5000
• Package Size: 10.00cm * 10.00cm * 10.00cm
• Package Gross Weight: 1.000kg

Product Description

Parameter Category	Specific Parameter	Detailed Description
Basic Information
Seal Type	QT-502 Mechanical Seal	A high-performance mechanical seal designed for a wide range of industrial applications to ensure reliable and efficient sealing.
Model	QT-502	Specifically engineered to meet the demands of various pumping systems and operating conditions.
Materials
- Rotating Ring	Silicon Carbide (SiC)	The rotating ring made of silicon carbide offers excellent hardness and wear resistance, enabling it to withstand high-speed and high-pressure operations with minimal wear. This ensures a long service life for the seal.
- Stationary Ring	Aluminum Oxide Ceramic	The stationary ring crafted from aluminum oxide ceramic provides superior corrosion resistance and a smooth surface finish, which is essential for effective sealing and reducing friction.
- O-Ring	Fluoroelastomer (FKM)	The FKM O-ring is highly resilient and offers a tight seal. It is resistant to a broad spectrum of chemicals and can operate within a wide temperature range, ensuring reliable performance in different media environments.
Size Specifications
Shaft Diameter Range	25 - 55 mm	This mechanical seal is compatible with pump shafts having diameters within this range, making it suitable for a variety of pump sizes and applications.
Seal Chamber Inner Diameter	35 - 65 mm	Designed to fit into seal chambers with inner diameters falling within this interval to ensure proper installation and optimal sealing performance.
Seal Width	9 mm	The 9 mm width of the seal is carefully selected to balance effective sealing and reduced friction, contributing to the overall efficiency of the pumping system.
Performance Parameters
Working Pressure	Maximum 1.8 MPa	Under normal operating conditions, the QT-502 seal can handle a maximum working pressure of 1.8 MPa, preventing the leakage of the pumped fluid and maintaining system integrity.
Working Temperature	-25ºC - 140ºC	Capable of operating effectively within this temperature range, it can adapt to both cold and relatively high-temperature applications, making it versatile for different industrial processes.
Linear Velocity	Maximum 12 m/s	The seal is engineered to withstand a maximum linear velocity of 12 m/s, ensuring stable performance even when the pump is operating at high speeds.
Applicable Media
- Water-based Fluids	Suitable for clean water, process water, and various aqueous solutions with a pH range of 2 - 12. It can handle both acidic and alkaline water-based media effectively.
- Oil-based Fluids	Can be used with common lubricating oils, gear oils, and some synthetic oil-based fluids. It provides reliable sealing for oil circulation systems.
- Chemical Solutions	Resistant to many common chemical solutions, such as mild acids, alkalis, and some organic solvents, making it suitable for chemical processing applications.
Installation and Maintenance
Installation Method	Axial Installation	The seal is installed axially onto the pump shaft following a precise installation procedure to ensure proper alignment and a secure seal.
Installation Torque	12 - 18 N·m	During installation, a torque within this range should be applied to secure the seal in place without causing damage to the seal components.
Maintenance Cycle	Every 4000 operating hours	Regular maintenance is recommended every 4000 operating hours. This includes inspecting the seal for signs of wear, leakage, and proper alignment. Any necessary adjustments or replacements should be carried out promptly.
Storage Conditions	Store in a dry, cool environment at a temperature between 5ºC - 25ºC. Keep away from direct sunlight and sources of heat or moisture.	Proper storage conditions help maintain the quality and integrity of the seal components, ensuring their readiness for installation and optimal performance when in use.
Quality and Certification
Service Life	Approximately 2 - 3 years under normal operating conditions	With proper operation and maintenance, the QT-502 mechanical seal can provide reliable service for a period of 2 to 3 years, reducing the need for frequent replacements.
Leakage Rate	≤0.1 mL/h	The seal is designed to have a very low leakage rate, ensuring that the pumped fluid remains within the system and minimizing the risk of environmental contamination or product loss.
Certification Standards	ISO 9001, ISO 14001	The QT-502 seal meets the requirements of ISO 9001 quality management system standards and ISO 14001 environmental management system standards, demonstrating its quality and environmental responsibility.
Other Characteristics
Vibration Resistance	Can withstand vibrations with a frequency range of 5 - 50 Hz and an amplitude of 0.5 mm.	Engineered to maintain its sealing performance even in environments with moderate levels of vibration, ensuring stable operation of the pumping system.
Self-lubricating Property	The seal surfaces are treated with a self-lubricating coating to reduce friction and wear.	This self-lubricating feature helps to extend the service life of the seal and improves the overall efficiency of the pumping system by minimizing energy consumption due to friction.

Queeny design engineers are able to produce a seals solution for the most basic applications,to those that are extremely complicated and unique. We are able to provide you these solutions supported by life test data and years of excellent field performance.As your partner, we provide sealing solutions for centrifugal pumps,agitators and other rotating equipment, and help you consolidate your brand and market position.

Mechanical sealing adopts the principle of mechanical friction sealing, which has excellent sealing performance, which can effectively prevent leakage and protect the safety of the environment and equipment. Compared with traditional packing seals and rotary seals, the sealing effect of mechanical seals is more reliable.

 

Our products are made of high quality materials and manufacturing processes, with a long service life and low cost of use. It can effectively reduce the maintenance costs and operating costs of equipment .

 

Our mechanical seals are designed to be easy to service and replace,simply by removing the sealing components and replacing the sealing surface and sealing ring. Compared with other sealing forms, our products are more convenient to repair and replace.

 

Mechanical seal is suitable for high temperature, low temperature, high pressure, vacuum and corrosive media and other complex environment, to ensure the stable operation of the equipment.

Shanghai Queeny Mechanical Equipment Co.,Ltd.is an enterprise specializing in the R&D,manufacture and export of mechanical seal products,headquartered in Pudong New Area,Shanghai.Our products mainly include component seals,dry gas seals,metal bellows seals,mixer and agitator seals,single & dual cartridge seals,silicon carbide parts and tungsetn carbide parts,which can replace John Crane, Burg-mann, AES, Chesterton,Flowserve,Rotenand other similar products,they are widely used in water treatment,petroleum,chemical,food,medical and other industries.
Relying on first-class technology and professional services,since its establishment, Queeny has carried out in-depth cooperation with hundreds of companies in more than 70 countries around the world.Our products are exported to Asia,Europe,North America,South America,Oceania and Africa in large quantities every year,and have been widely praised.Super high cost performance is the basis of our long-term cooperation with customers.We always rigorously treat clients' requirements,strictly control the production process,and comprehensively monitor the export procedure.It is our mission to reduce production and operation costs for more enterprises all over the world.

Q1: Are you a trading company or a factory?
We are a factory, so we can offer you factory prices with high quality.

Q2: Can I get samples?
Yes. You can ask for samples. Usually it's free, but you need to pay for shipping.

Q3: Can l use my own logo or design on the goods?
Yes, we provide OEM/ODMservices; your logo and design can be printed on the products.

Q4: What are your payment terms?
We accept T/T, Paypal, Western Union, and credit card payment is also welcome.

Q5: How about the delivery time?
For stock items, we can ship immediately after receiving the payment.
For other products, we need 14-25 days for mass production, which depends on the quantity and type of order.

Q6: How can we ensure the quality?
Pre-production samples are required before mass production;Final inspection is required before shipment;

Q7: 1 can't find our products in your catalog, can you customize the products for us?
Yes, customized products are available, OEM is welcome.

Q8: Can l buy pumps or pump parts from your company?
Yes, we also provide pumps and pump parts.