Size

Custom

Other Attributes

Place of Origin	Zhejiang, China
Brand Name	CF365

Supply Ability

Supply Ability

10000 Piece/Pieces per Month

Product Details

1) Heat shock stablity

2) chemical corrosion-resistant

3) High temper-endure(up to 1650°)

4) Wearing/corrosion/oxidation resistant

5) Highly performance of mechanical strength

6) Cleaning or etching the hardest sub-surfaces

7) Used for grinding, lapping, and wire saw cutting as well as abrasive blasting

Material And Component Codes

Description	Material	Material Feature & Suitable Scope
Rotary /Stationary Face	Carbon	Resistant against: erosive heat. suitable for water and oil medium.
	Ceramic	Resistant against:shore hardness,abrasion. Suitable for dusted water and oil.
	Silicon Carbide	Resistant against:heat,abrasion,erosive. Suitable for industrial pumps, submersible pump sewage pump etc
	Tungsten carbide	Resistant against:heat,abrasion,erosive. Suitable for industrial pumps, submersible pump sewage pump etc
Bellow Cup gasket Oring	NBR	Resistant against:pressure,abrasion,high elasticity and mechanical strength. Suitable for water and Oil Under -20°C-120°C
	EPDM	Resistant against:heat freeze,chemical reagent depending. Suitable for water and Oil Under -40°C-150°C
	MVQ	Resistant against:heat, oil, reagent, medicine, acetone.Suitable for high temperature. Hydraulic equipment and vacum equipment Suitable for erosive medium under  -20°C-180°C
	ECO	Resistant against:ozone aging merely ocetum, ammomia ethanol. Suitable for medium -40°C-150°C
	SUS304 SUS316	Resistant against: freon, rock oil. Suitable for medium -30°C-130°C
Retainer driver ring\spring Spring seat	SUS304 SUS316	Resistant against: abrasion, antirust of feature

How to choose What you want

Let me Help you find it what mechanical seal do you want

The First step: Do you know Type name?  you can choose from the list below.

The Second Step: Do you know what material do you want? Choose from the list below.

The Third step: Do you know what shaft size?

If you don’t know any, please do not hesitate to ask us, we will help you to find out the best way.

Contact Us Now

Why Choose Us

Type 365 Double Cartridge Mechanical Seal for Water Pump: Advanced Sealing Technology for Industrial Applications

1. Introduction to Type 365 Double Cartridge Mechanical Seal

The Type 365 Double Cartridge Mechanical Seal is engineered to provide superior sealing performance in water pumps operating under demanding conditions. Designed for reliability in high-pressure and high-speed applications, this Double Cartridge Mechanical Seal ensures leak-free operation while minimizing maintenance requirements. Its innovative design combines durability with ease of installation, making it ideal for municipal water systems, industrial cooling circuits, and wastewater treatment plants.

Key Advantages of Type 365 Double Cartridge Mechanical Seal

✔ Zero-Leakage Performance – Dual-seal design prevents fluid escape
✔ Extended Service Life – Robust construction reduces wear and tear
✔ Easy Installation – Pre-assembled cartridge simplifies mounting
✔ Corrosion Resistance – Premium materials for harsh water conditions

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2. Material Composition & Manufacturing Excellence

2.1 Premium Materials for Durability

The Type 365 Double Cartridge Mechanical Seal utilizes:

• Primary Seal Faces: Silicon carbide (SiC) or tungsten carbide (WC) for wear resistance

• Secondary Seals: EPDM, FKM, or PTFE for chemical compatibility

• Metal Components: 316L stainless steel or duplex steel for corrosion resistance

2.2 Precision Manufacturing Process

✔ CNC Machining – Ensures dimensional accuracy (±0.01mm)
✔ Laser Surface Finishing – Optimizes seal face flatness (Ra < 0.2μm)
✔ Helium Leak Testing – Guarantees zero leakage before shipment

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3. Applications of Type 365 Double Cartridge Mechanical Seal

3.1 Municipal Water Supply

• High-pressure water pumps

• Clean water distribution systems

3.2 Wastewater Treatment

• Sewage pumps handling abrasive media

• Slurry transfer applications

3.3 Industrial Cooling Systems

• Cooling tower circulation pumps

• Heat exchanger feed pumps

3.4 Power Generation

• Boiler feed water pumps

• Condensate extraction systems

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4. Installation & Maintenance Best Practices

4.1 Proper Installation Guidelines

1. Pre-Installation Checks

• Verify shaft runout (≤0.05mm)

• Ensure seal chamber is clean and free of debris

2. Mounting the Seal

• Slide the Double Cartridge Mechanical Seal onto the shaft

• Secure with manufacturer-recommended torque settings

3. Final Adjustments

• Remove shipping clips (if applicable)

• Perform a dry rotation test

4.2 Maintenance & Troubleshooting

Maintenance Tips:
✔ Monthly inspections for leaks and wear
✔ Annual overhauls for critical applications
✔ Flush system optimization for abrasive media

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5. Why Choose Type 365 Double Cartridge Mechanical Seal?

• API 682 & ISO 21049 Compliance – Meets global industry standards

• Customizable Designs – Multiple face materials and elastomer options

• Global Technical Support – Fast response for troubleshooting

Final Recommendation:
For water pumps requiring high-performance sealing, the Type 365 Double Cartridge Mechanical Seal ensures reliability and efficiency.

Contact us today for a custom sealing solution!

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12 Common Technical Q&As About Type 365 Double Cartridge Mechanical Seal for Water Pump

1. Q: What are the key advantages of Double Cartridge Mechanical Seals over conventional seals?
   A: The Type 365 Double Cartridge Mechanical Seal provides:

• 50% longer service life than single seals

• Pre-assembled unit for error-free installation

• Dual sealing protection against leakage

• Reduced maintenance requirements
  These features make it ideal for critical water pump applications.

2.Q: What pressure ranges can the Type 365 Double Cartridge Mechanical Seal handle?
A: This Double Cartridge Mechanical Seal is rated for:

• Standard models: Up to 25 bar (362 psi)

• High-pressure versions: Up to 40 bar (580 psi)
  Special designs available for ultra-high pressure applications.

3.Q: Which materials are recommended for seawater applications?
A: For seawater services, we recommend:

• Seal faces: Silicon carbide vs. silicon carbide

• Metal parts: Super duplex stainless steel

• Elastomers: EPDM or FKM
  This combination provides excellent corrosion resistance in marine environments.

4.Q: How do I select the right Double Cartridge Mechanical Seal for my pump?
A: Selection requires:

1. Pump model and operating parameters

2. Shaft diameter and seal chamber dimensions

3. Water quality (clean, brackish, or abrasive)

4. Temperature and pressure ranges
   Our engineers can provide specific recommendations.

5.Q: What's the typical service life in clean water applications?
A: The Type 365 Double Cartridge Mechanical Seal typically achieves:

• 3-5 years in clean water

• 2-3 years in mildly abrasive water

• 1-2 years in severe slurry conditions
  Proper maintenance can extend service life by 30%.

6.Q: Can the Double Cartridge Mechanical Seal handle thermal cycling?
A: Yes, the Type 365 is designed for:

• Temperature fluctuations up to 150°C/hour

• Continuous operation from -20°C to 180°C

• Instantaneous cold starts
  Making it suitable for variable temperature applications.

7.Q: What maintenance is required for these seals?
A: The Double Cartridge Mechanical Seal requires:

• Monthly visual inspections

• Quarterly vibration checks

• Annual comprehensive inspections
  Unlike conventional seals, they don't need frequent adjustments.

8.Q: How do I troubleshoot excessive leakage?
A: For leakage issues:

1. Check for proper installation (90% of leaks are installation-related)

2. Inspect seal faces for damage

3. Verify correct spring compression

4. Examine secondary seals
   Our technical team can assist with failure analysis.

9.Q: Are these seals suitable for potable water applications?
A: Yes, we offer NSF/ANSI 61 certified Double Cartridge Mechanical Seals with:

• FDA-compliant materials

• Drinking water approved elastomers

• Non-toxic construction
  Ideal for municipal water supply systems.

10.Q: What's the installation procedure?
A: Key installation steps:

1. Verify shaft runout <0.05mm

2. Clean seal chamber thoroughly

3. Install using alignment tools

4. Torque to manufacturer specifications

5. Remove all shipping restraints

11.Q: Can existing pumps be retrofitted with Double Cartridge Mechanical Seals?
A: Yes, our engineering team can develop:

• Adapter sleeves for shaft size differences

• Custom gland plates

• Special mounting hardware
  Typically improving reliability by 40-60%.

12.Q: What ROI can I expect when upgrading to Type 365 seals?
A: Documented benefits include:

• 40% reduction in maintenance costs

• 50% longer seal life

• Payback period of 6-12 months
  For a customized ROI analysis, provide your current seal performance data.

Key Technical Takeaways:

1. Double Cartridge Mechanical Seals provide superior reliability in water pumps

2. Proper material selection extends service life in corrosive/abrasive services

3. Correct installation is critical for optimal performance

4. Regular maintenance prevents unexpected failures

Pro Tip: Always request the installation manual when ordering Type 365 Double Cartridge Mechanical Seals. Our technical support team offers free installation training for maintenance crews.

Support Services:

• 24/7 emergency technical support

• On-site installation supervision

• Failure analysis reports

• Custom engineering solutions

For application-specific recommendations, consult our sealing specialists with your pump operating parameters and water quality data.