| Parameter Category |
Specific Parameter |
Detailed Description |
| Basic Information |
|
|
| Seal Type |
ST Mechanical Seal |
A high - performance mechanical seal designed for diverse industrial applications, providing reliable sealing solutions. |
| Model |
ST |
Specifically engineered to meet the sealing requirements of various pumps and equipment. |
| Materials |
|
|
| - Rotating Ring |
Silicon Carbide (SiC) |
Silicon carbide offers excellent hardness and wear resistance, enabling the rotating ring to endure high - speed and high - pressure operations, ensuring a long service life. |
| - Stationary Ring |
Tungsten Carbide |
Tungsten carbide stationary ring has high strength and good corrosion resistance, contributing to stable sealing performance. |
| - O - Ring |
Fluoroelastomer (FKM) |
The FKM O - ring provides a tight seal and is resistant to a wide range of chemicals and temperatures, ensuring reliable operation in different media. |
| Size Specifications |
|
|
| Shaft Diameter Range |
18 - 48 mm |
Suitable for pump shafts with diameters within this range, making it applicable to a variety of pump models. |
| Seal Chamber Inner Diameter |
28 - 58 mm |
Designed to fit into seal chambers with inner diameters in this interval for proper installation and optimal sealing. |
| Seal Width |
8.5 mm |
The 8.5 mm width is optimized to balance effective sealing and reduced friction, enhancing the overall efficiency of the sealed system. |
| Performance Parameters |
|
|
| Working Pressure |
Maximum 1.5 MPa |
Under normal operating conditions, the ST seal can withstand a maximum pressure of 1.5 MPa, preventing leakage of the pumped medium. |
| Working Temperature |
- 20ºC - 130ºC |
Capable of operating effectively within this temperature range, suitable for both cold and moderately high - temperature applications. |
| Linear Velocity |
Maximum 10.5 m/s |
The seal can handle a maximum linear velocity of 10.5 m/s, ensuring stable performance even at high - speed rotations. |
| Applicable Media |
|
|
| - Water - based Fluids |
Suitable for clean water, cooling water, and various aqueous solutions with a pH range of 3 - 11. |
|
| - Oil - based Fluids |
Applicable to common lubricating oils, hydraulic oils, and some petroleum - based oils. |
|
| - Chemical Solutions |
Resistant to many common chemical solutions, such as weak acids, alkalis, and some organic solvents. |
|
| Installation and Maintenance |
|
|
| Installation Method |
Axial Installation |
Installed axially onto the pump shaft following a standardized installation procedure to ensure correct alignment and a secure seal. |
| Installation Torque |
10 - 16 N·m |
During installation, a torque within this range should be applied to fasten the seal properly without causing damage. |
| Maintenance Cycle |
Every 3500 operating hours |
Regular maintenance is recommended every 3500 operating hours, including inspection for wear, leakage, and proper positioning. |
| Storage Conditions |
Store in a dry, cool environment at a temperature between 0ºC - 30ºC, away from direct sunlight and corrosive gases. |
Proper storage helps maintain the integrity of the seal components and extends their shelf life. |
| Quality and Certification |
|
|
| Service Life |
Approximately 1.8 - 2.8 years under normal operating conditions |
With proper operation and maintenance, the ST mechanical seal can provide reliable service for 1.8 - 2.8 years. |
| Leakage Rate |
≤0.09 mL/h |
The seal is designed with a low leakage rate to ensure the containment of the pumped medium and minimize environmental impact. |
| Certification Standards |
ISO 9001, ISO 14001 |
Meets the requirements of ISO 9001 quality management system and ISO 14001 environmental management system standards. |
| Other Characteristics |
|
|
| Vibration Resistance |
Can withstand vibrations with a frequency range of 5 - 45 Hz and an amplitude of 0.45 mm. |
Engineered to maintain sealing performance in environments with moderate vibration levels. |
| Self - lubricating Property |
The seal surfaces are coated with a self - lubricating material to reduce friction and wear, improving the seal's durability and efficiency. |
Product Description
We provide complete range of replacement seals for Armstrong pumps, Fybroc pumps(CECO, MET-PRO corp.), Aurora pumps, Bell & Gossett, Pentair pumps etc. brands.
Equivalent to John Crane/US SEAL VGXB2 and replacement seals used for Armstrong pump series 4300 (OE NO. 975002) and Fybroc pumps.
For Armstrong pumps:
VG-975002304----1 1/8"--------975002-304
VG-975002334----1 5/8"--------975002-334
VG-975002374----2 1/8"--------975002-374
VG-975002394----2 5/8"--------975002-394
For Bell & Gossett series 80-SC.
VG-P75202-----1 1/4"---------P75202
VG-975002334---1 5/8"------P75203
For Fybroc pumps
VG-81375-------1 3/8"--------08976C010
VG-81376-------1 3/8"---------08976C100
VG-82125-------2 1/8"---------08975C010
VG-82126-------2 1/8"---------08975C070
VG-82875-------2 7/8"---------08974C010
VG-82876-------2 7/8"---------08974C010
Detailed Photos
Company Profile
Designer and Manufacturer of mechanical seals and sealing supportive system. We are focusing on providing overall low cost to our customers, in terms of cost of purchasing, cost of supplier chain and cost of transaction.
Our culture is built around local knowledge and expert advice - we dig deeper to understand the real needs of our clients. Our operations are based on unique expertise in pump and seal technology, extensive knowledge about pump processes and close customer cooperation.
At Queeytech, we make it our business to find a way to deliver the most effective solution for our clients.
Our Advantages
Not only provide mechanical seals and sealing supportive system, we also provide overall solution
of minimized cost (cost of purchasing, supplier chain management and transaction) service to our customers.
Here are some characteristics of our services:
1. Instead of selling, we are helping clients to buy.
2. We dig customers's real demand, and all purchasing activities will satisfy the real demand.
3. We understand clients' business activities, and solution will be provided based on this.
4. We predict the possible risks which might happen during the purchasing, and plan B will be
always prepared. We will undertake the unexpected risks with customers.
After Sales Service
Audited Supplier 
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