Size

Custom

Other Attributes

Place of Origin	Zhejiang, China
Brand Name	CF85N

Supply Ability

Supply Ability

10000 Piece/Pieces per Month

Product Details

1) Heat shock stablit

y

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.

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Why Choose Us

O-Ring 85N Single Stationary Metal Bellow Mechanical Seals: High-Performance Sealing Solutions for Industrial Applications

1. Introduction to Single Stationary Metal Bellow Mechanical Seals

Single Stationary Metal Bellow Mechanical Seals are engineered for reliability in demanding industrial environments where conventional seals fail. The O-Ring 85N model is specifically designed for applications requiring robust sealing performance, high-temperature resistance, and long service life. Unlike dynamic bellow seals, Single Stationary Metal Bellow Mechanical Seals feature a fixed bellow design, eliminating unnecessary movement and reducing wear.

Key Advantages of Single Stationary Metal Bellow Mechanical Seals

✔ Zero-leakage performance – Welded metal bellows prevent fugitive emissions
✔ High-temperature resistance – Operates from -100°C to 400°C (-148°F to 752°F)
✔ Corrosion-resistant materials – Ideal for aggressive chemicals and acids
✔ Reduced maintenance – No elastomer degradation, longer lifespan

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2. Material Composition & Manufacturing Excellence

2.1 Premium Materials for Extreme Conditions

The O-Ring 85N Single Stationary Metal Bellow Mechanical Seals utilize:

• Bellows Material: 316L stainless steel, Hastelloy C276, or Inconel 625

• Seal Faces: Silicon carbide (SiC), tungsten carbide (WC), or diamond-coated

• Secondary Seals: Fluoroelastomer (FKM) or PTFE for chemical resistance

2.2 Precision Manufacturing Process

✔ Laser welding ensures hermetic sealing
✔ Dynamic balancing for vibration-free operation
✔ Helium leak testing guarantees zero leakage

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3. Applications of Single Stationary Metal Bellow Mechanical Seals

3.1 Chemical Processing

• Acid & caustic pumps (sulfuric acid, hydrochloric acid)

• Solvent transfer pumps

3.2 Oil & Gas Refineries

• Crude oil transfer pumps

• High-pressure hydrocarbon processing

3.3 Power Generation

• Boiler feed pumps

• Cooling water circulation systems

3.4 Food & Pharmaceutical

• Sanitary-grade seals for hygienic applications

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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

• Carefully slide the Single Stationary Metal Bellow 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:
✔ Annual inspections for bellows integrity
✔ Vibration monitoring for early failure detection
✔ Flush system optimization for abrasive services

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5. Why Choose O-Ring 85N Single Stationary Metal Bellow Mechanical Seals?

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

• Customizable Designs – Multiple face materials and bellows configurations

• Global Technical Support – Rapid response for troubleshooting

Final Recommendation:
For industries requiring high-performance, zero-leakage sealing, the O-Ring 85N Single Stationary Metal Bellow Mechanical Seals deliver unmatched reliability.

Contact us today for a custom sealing solution!

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Here are 10 professional Q&As about O-Ring 85N Single Stationary Metal Bellow Mechanical Seals 

1. Q: What are the main advantages of Single Stationary Metal Bellow Mechanical Seals compared to conventional seals?
   A: Single Stationary Metal Bellow Mechanical Seals offer three key benefits:

1. Superior temperature resistance (-100°C to 400°C)

2. Elimination of dynamic O-rings that wear out

3. Welded metal construction prevents fugitive emissions
   These features make them ideal for chemical processing and refinery applications.

1. Q: Why choose the O-Ring 85N model of Single Stationary Metal Bellow Mechanical Seals?
   A: The O-Ring 85N series features:

• Prestressed bellows for extended fatigue life

• Patented face alignment technology

• API 682 Plan 53 compatibility
  Making it the most reliable Single Stationary Metal Bellow Mechanical Seal for severe services.

1. Q: What materials are used in Single Stationary Metal Bellow Mechanical Seals for acid services?
   A: For acidic media, we recommend:

• Bellows: Hastelloy C276

• Seal faces: SiC vs. SiC

• Secondary seals: PTEE or FFKM
  This combination provides excellent corrosion resistance in pH extremes.

1. Q: How do I properly install Single Stationary Metal Bellow Mechanical Seals?
   A: Critical installation steps:

1. Verify shaft runout <0.05mm

2. Clean seal chamber thoroughly

3. Use alignment tools during mounting

4. Torque fasteners to manufacturer specs

5. Remove all shipping restraints

1. Q: What's the typical service life of Single Stationary Metal Bellow Mechanical Seals?
   A: In standard applications:

• 3-5 years in clean hydrocarbon services

• 2-3 years in mild chemical services

• 1-2 years in abrasive slurry services
  Proper flush system maintenance can extend seal life by 30%.

1. Q: Can Single Stationary Metal Bellow Mechanical Seals handle thermal cycling?
   A: Yes, the O-Ring 85N model features:

• Prestressed bellows to absorb thermal expansion

• Thermal barrier coatings

• High conductivity materials
  Proven in services with 200°C/hour temperature swings.

1. Q: What maintenance is required for Single Stationary Metal Bellow Mechanical Seals?
   A: Recommended maintenance:

• Monthly: Check flush system pressures

• Quarterly: Inspect seal faces via borescope

• Annually: Comprehensive disassembly inspection
  Unlike dynamic seals, they don't require O-ring replacements.

1. Q: How do I troubleshoot vibration issues with Single Stationary Metal Bellow Mechanical Seals?
   A: Common causes and solutions:

1. Misalignment: Realign pump to <0.05mm

2. Cavitation: Verify proper NPSH

3. Bearing wear: Replace bearings

4. Pipe strain: Check piping supports

1. Q: Are Single Stationary Metal Bellow Mechanical Seals suitable for food-grade applications?
   A: Yes, we offer FDA-compliant versions with:

• 316L stainless steel construction

• FDA-grade elastomers

• CIP/SIP compatibility
  Ideal for pharmaceutical and food processing pumps.

1. Q: What's the ROI when upgrading to Single Stationary Metal Bellow Mechanical Seals?
   A: Typical benefits include:

• 40% longer MTBR vs. conventional seals

• 50% reduction in maintenance labor

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

Key Takeaway:
Single Stationary Metal Bellow Mechanical Seals provide unmatched reliability in demanding services. Their robust construction eliminates common failure points while meeting stringent environmental regulations. For application-specific recommendations, consult our sealing specialists with your operating parameters.