Suitable for Mechanical Seal of Lower End of Flygt Pump 3231

• Customization: Available
• Structure: Single End
• Pressure: High Pressure Mechanical Seals
• Model NO.: QT-3231 lower seal
• Speed: General Speed Mechanical Seal
• Temperature: Low-Temperature Mechanical Seal
• Performance: Temperature
• Standard: Standard
• Type: Qt-3231 Lower Seal
• Balance: Balanced
• Brand: Queeny
• Price: Lower Than Original
• Delivery Time: Stock
• Quality: 12 Month Guarantee
• Transport Package: Beautiful Package
• Specification: Customized
• Trademark: Queeny
• Origin: Shanghai, China
• HS Code: 8484200090
• Production Capacity: 300000PCS
• Package Size: 10.00cm * 10.00cm * 10.00cm
• Package Gross Weight: 1.000kg

Product Description

Parameter	Details
Model	QT-3231 lower seal
Seal Type	Double-Ended, Balanced
Size	Inner Diameter: 32mm; Outer Diameter: 55mm; Width: 18mm
Static Ring Material	Carbon Graphite
Rotating Ring Material	Silicon Carbide
O-Ring Material	Ethylene Propylene Diene Monomer (EPDM)
Maximum Working Pressure	2.5 MPa
Minimum Working Pressure	0.1 MPa
Maximum Working Temperature	150°C
Minimum Working Temperature	-40°C
Maximum Shaft Speed	4500 RPM
Minimum Shaft Speed	0 RPM
Fluid Compatibility	Water-based solutions, non-corrosive oils, weak alkaline solutions
Sealing Face Flatness	≤0.0007 mm
Sealing Face Roughness	Ra ≤0.15 μm
Axial Runout Tolerance	≤0.04 mm
Radial Runout Tolerance	≤0.02 mm
Spring Quantity	6 springs
Spring Material	Nickel - Chrome Alloy
Spring Rate	20 N/mm
Installation Depth	30 mm
Weight	0.5 kg
Leakage Rate	≤3 ml/h under rated conditions
Operating Medium Viscosity Range	0.5 - 200 cSt
Corrosion Resistance Feature	Good resistance to most organic acids and alkalis
Lubrication Requirement	Requires external lubrication for high - speed operation
Maintenance Interval	Every 18 months or 12000 operating hours
Storage Environment	Dark place with temperature 5 - 25°C, humidity ≤50%
Assembly Notes	Ensure springs are evenly compressed; align seal faces accurately
Disassembly Precautions	Release system pressure completely before disassembly
Compatibility with Equipment	Suitable for vertical and horizontal pumps, mixers within parameter limits
Cleaning Recommendation	Use isopropyl alcohol for cleaning; rinse thoroughly
Replacement Parts	Static ring, rotating ring, O-rings, springs
Testing Certification	Meets DIN 24960 and ASME B73.1 standards

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.

 

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.