Lightweight Household Pump Graphite Silicon Carbide Single Spring Seal Qt-208

• Customization: Available
• Structure: Single End
• Pressure: High Pressure Mechanical Seals
• Model NO.: QT-208
• Speed: General Speed Mechanical Seal
• Temperature: Temperature Mechanical Seal
• Performance: Temperature
• Standard: Standard
• Type: Mechanical Seal
• Balance: Unbalanced
• Brand: Queeny
• Price: Lower Than Original
• Delivery Time: Stock
• Quality: 12 Month Guarantee
• Transport Package: Carton
• Specification: as requirement
• Trademark: Queeny
• Origin: Shanghai, China
• HS Code: 8484200090
• Production Capacity: 10000 Pieces/Year
• Package Size: 10.00cm * 10.00cm * 10.00cm
• Package Gross Weight: 1.000kg

Product Description

Parameter	Description
Model	QT-208
Seal Type	Multi-spring, balanced, inside-mounted
Size Range	15 mm - 80 mm
Shaft Diameter (Min)	15 mm
Shaft Diameter (Max)	80 mm
Housing Bore Diameter (Min)	25 mm
Housing Bore Diameter (Max)	90 mm
Face Material	Tungsten Carbide / Carbon Graphite
Secondary Seal Material	EPDM
Pressure Rating	0 - 1.6 MPa
Temperature Range	-40°C to 120°C
Speed Limit	Up to 2500 RPM
Axial Length	30 mm
Radial Clearance	0.2 - 0.5 mm
Axial Clearance	0.1 - 0.3 mm
Spring Rate	15 N/mm
Spring Quantity	6 springs
Installation Torque	10 - 15 N·m
Leakage Rate	≤ 5 ml/h at 0.6 MPa
Medium Compatibility	Water, non-corrosive liquids
Hardness of Face Material (Tungsten Carbide)	1500 - 1800 HV
Hardness of Face Material (Carbon Graphite)	80 - 120 HB
Weight	0.2 - 0.8 kg (depending on size)
Surface Finish of Seal Face	Ra ≤ 0.4 μm
Surface Flatness of Seal Face	≤ 0.0009 mm
Storage Conditions	Dry, cool environment below 30°C, away from direct sunlight
Operating Medium Viscosity	0.6 - 10 cP
Maximum Axial Load	50 N
Maximum Radial Load	30 N
Chemical Resistance	Resistant to common acids and alkalis within specified temperature range
Assembly Clearance Tolerance	±0.1 mm
Disassembly Clearance	≥ 5 mm
Recommended Lubrication	None required for water-based media
Seal Face Contact Pressure	0.3 - 0.8 MPa
Spring Preload	5 - 10 N
Dynamic Friction Coefficient	0.1 - 0.3
Static Friction Coefficient	0.2 - 0.4
Life Expectancy	8000 - 10000 operating hours
Pressure Drop Across Seal	≤ 0.1 MPa
Pressure Cycling Capacity	10000 cycles
Vibration Limit	≤ 5 mm/s (RMS)
Assembly Torque Tolerance	±1 N·m
Disassembly Torque	12 - 18 N·m
Cleaning Requirements	Clean with non-corrosive solvents before installation
Storage Life	2 years under proper conditions
Packaging	Individual carton with desiccant
Certification	Conforms to ISO 21049 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.

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.