Durable Mechanical Seal Type H7n for Enhanced Equipment Longevity

• Customization: Available
• Structure: Single End
• Pressure: High Pressure Mechanical Seals
• Model NO.: QT-H7N
• Speed: General Speed Mechanical Seal
• Temperature: Low-Temperature Mechanical Seal
• Performance: Temperature
• Standard: Standard
• Type: Qt-H7n
• 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-H7N
Application	Suitable for pumps, mixers, and agitators in chemical, pharmaceutical, and food processing industries
Structure Type	Single-face, unbalanced mechanical seal
Seal Face Material	Carbon graphite (stationary face), Silicon carbide (rotating face)
O-Ring Material	EPDM
Shaft Diameter Range	15 mm - 80 mm
Maximum Operating Pressure	1.6 MPa
Minimum Operating Pressure	0.05 MPa
Maximum Operating Temperature	150 °C
Minimum Operating Temperature	-20 °C
Maximum Rotational Speed	3000 rpm
Leakage Rate	≤ 5 ml/h
Seal Face Flatness	≤ 0.0009 mm
Seal Face Roughness	Stationary face: Ra ≤ 0.2 μm; Rotating face: Ra ≤ 0.4 μm
Axial Endplay	0.1 mm - 0.3 mm
Radial Clearance	0.05 mm - 0.15 mm
Axial Spring Load	40 N - 80 N
Chemical Resistance	Resistant to most organic solvents, weak acids, and alkalis
Lubrication Requirement	Self-lubricating under normal operating conditions
Assembly Torque	15 N·m - 25 N·m
Disassembly Torque	10 N·m - 20 N·m
Storage Conditions	Store in a dry, clean environment, away from direct sunlight and heat sources, temperature range: 0 °C - 40 °C, relative humidity ≤ 60%
Maintenance Interval	Recommended inspection every 6 months; replacement every 1 - 2 years depending on operating conditions
Weight	0.5 kg - 2 kg (varies with shaft diameter)
Certification	Complies with ISO 21049:2019 standards
Compatibility	Compatible with water-based fluids, oils, and some non-corrosive chemicals
Pressure Test Requirements	Subjected to a hydrostatic pressure test at 1.5 times the maximum operating pressure for 10 minutes with no visible leakage
Vibration Resistance	Withstands vibrations up to 5 mm/s RMS within the specified rotational speed range
Thermal Shock Resistance	Can tolerate a sudden temperature change of up to 50 °C without damage

 

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.