John Crane Mechanical Seal 59u for Corrosive Fluids Pump

• Customization: Available
• Structure: Single End
• Pressure: Medium Pressure Mechanical Seals
• Model NO.: QT-59U
• Speed: General Speed Mechanical Seal
• Temperature: Poor Temperature Mechanical Seal
• Performance: Wear
• Standard: Standard
• Type: Qt-59u
• Balance: Unbalanced
• Weight: 0.8kg
• 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	Details
Model	QT-59U
Seal Type	Single - spring, unbalanced, inside - mounted
Size Range	15mm - 100mm
Shaft Diameter Compatibility	15mm, 18mm, 20mm, 22mm, 25mm, 28mm, 30mm, 32mm, 35mm, 38mm, 40mm, 42mm, 45mm, 48mm, 50mm, 55mm, 60mm, 65mm, 70mm, 75mm, 80mm, 85mm, 90mm, 95mm, 100mm
Face Material	Tungsten carbide on one side, carbon graphite on the other side
Body Material	Stainless steel 316
Spring Material	Inconel 718
O - Ring Material	Fluoroelastomer alternative
Operating Pressure	Maximum: 2.5 MPa; Recommended: 0.1 - 2.0 MPa
Operating Temperature	Minimum: - 40°C; Maximum: 200°C
Rotational Speed	Maximum: 3000 rpm
Pressure Rating at 20°C	2.5 MPa
Pressure Rating at 100°C	1.8 MPa
Pressure Rating at 200°C	1.2 MPa
Leakage Rate	≤5 ml/h (at 1.0 MPa and 20°C)
Axial End - Float Tolerance	±0.5mm
Radial Runout Tolerance	≤0.05mm
Chemical Resistance	Resistant to a wide range of acids, alkalis, and organic solvents. Suitable for most common chemical media in industrial applications, but consult for specific chemical compatibility.
Installation Torque	15 - 25 N·m
Cleaning Method	Can be cleaned with mild detergents and deionized water. Avoid using abrasive cleaners.
Storage Conditions	Store in a dry, clean environment away from direct sunlight. Temperature range during storage: - 20°C - 50°C, relative humidity ≤70%.
Compression Ratio of O - Ring	15% - 20%
Hardness of Seal Face (Tungsten Carbide)	1300 - 1500 HV
Hardness of Seal Face (Carbon Graphite)	80 - 120 Shore D
Weight (approximate for 50mm size)	0.8 kg
Service Life	Under normal operating conditions (within recommended parameters), service life is approximately 8000 - 12000 hours
Vibration Resistance	Can withstand vibrations up to 5 m/s² without affecting sealing performance
Dynamic Friction Coefficient	0.08 - 0.12 (between seal faces)
Static Friction Coefficient	0.15 - 0.20 (between seal faces)
Wear Rate of Carbon Graphite Face	≤0.002 mm/100 hours (under normal operating conditions)
Wear Rate of Tungsten Carbide Face	≤0.0005 mm/100 hours (under normal operating conditions)

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.