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High Precision CNC Turned Stainless Steel Flange End Cover for Leak-Proof Sealing in Gas-Liquid Separators

High Precision CNC Turned Stainless Steel Flange End Cover for Leak-Proof Sealing in Gas-Liquid Separators

MOQ: 1000pcs
Price: $0.5-2
Standard Packaging: Wooden case
Delivery Period: 30 days
Payment Method: D/A,D/P,T/T
Supply Capacity: 10000PCS/month
Detail Information
Place of Origin
Qingdao, China
Brand Name
Qingdao Sande Tech Co.,Ltd
Certification
ISO, DIN, AISI, ASTM, BS, JIS, etc.
Model Number
OEM
Process:
Turning And Milling
Package:
Wooden Box
Surface Treatment:
Painting,electrophoresis.
Production Method:
CNC Machining
Drw Format:
PDF/DWG/IGS/STP/ Etc
Function:
Supports Precise Machining
Capacity:
10, 000pieces Per Month
Value:
ISO 9001
Highlight:

CNC turned stainless steel flange cover

,

leak-proof gas-liquid separator end cover

,

precision machined flange end cover

Product Description
High Precision CNC Turned Flange End Cover for Gas-Liquid Separator Components
Product Overview

The High Precision CNC Turned Flange End Cover is a precision-engineered closure component specifically designed for gas-liquid separators, pressure vessels, and industrial tank systems. Manufactured through advanced CNC turning processes, this flange end cover provides reliable sealing, structural integrity, and dimensional consistency for demanding separation applications.

As a critical component in separator systems, the flange end cover serves as the access point for inspection, maintenance, and internal component replacement. Its precision-machined sealing surface ensures leak-proof operation under varying pressure and temperature conditions, while the robust stainless steel construction delivers long-term durability in corrosive industrial environments.

Key Features & Advantages
  • High Precision CNC Turning
    • Manufactured on advanced CNC lathes and turning centers, achieving dimensional tolerances of ±0.01 mm to ±0.005 mm on critical features
    • Single-setup machining ensures perfect concentricity between the flange face, sealing groove, and bore diameter
    • Superior surface finish of Ra ≤ 1.6 μm on sealing surfaces, with Ra ≤ 0.8 μm available for demanding applications
    • Consistent quality across production batches, eliminating variations common in manual machining
  • Premium Material Selection
    • Standard options: Stainless Steel SS304 and SS316L, offering excellent corrosion resistance
    • SS304: Suitable for general industrial applications with moderate corrosion requirements
    • SS316L: Enhanced resistance to chlorides, acids, and corrosive media; ideal for marine, chemical, and pharmaceutical environments
    • Additional materials available: SS316Ti, duplex stainless steel, Hastelloy®, Inconel®, and titanium for specialized applications
  • Reliable Sealing Performance
    • Flange face machined to industry standards: ASME B16.5, DIN EN 1092-1, JIS B2220, or GB/T 9119 as specified
    • Available sealing face types:
      • RF (Raised Face) - Standard for spiral wound and flat gaskets
      • FF (Flat Face) - For full-face gaskets and low-pressure applications
      • RTJ (Ring Type Joint) - For high-pressure, high-temperature services
    • Precision-machined gasket groove ensures consistent compression and leak-proof operation
    • Compatible with various sealing solutions: spiral wound gaskets, O-rings, flat gaskets, and metal ring gaskets
  • Structural Integrity
    • Designed to withstand pressure ratings up to 40 bar or higher, depending on size and material
    • Suitable for operating temperatures ranging from -40°C to +300°C, with material and seal selection determining the specific range
    • Robust wall thickness design ensures resistance to deformation under thermal cycling and pressure fluctuations
Technical Specifications
Parameter Details
Product Name High Precision CNC Turned Flange End Cover
Material SS304, SS316L, SS316Ti (custom materials available)
Manufacturing Process CNC Turning, CNC Machining
Dimensional Tolerance ±0.005 mm - ±0.01 mm (customizable)
Surface Finish Ra ≤ 1.6 μm (sealing face), Ra ≤ 3.2 μm (non-sealing surfaces)
Flange Standards ASME B16.5, DIN EN 1092-1, JIS B2220, GB/T 9119, or custom
Sealing Face Type RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint), or custom
Pressure Rating Class 150, Class 300, Class 600, PN10, PN16, PN25, PN40, or custom
Size Range DN50 - DN1000 (2″ - 40″) or custom sizes
Temperature Range -40°C to +300°C (dependent on material and gasket)
Surface Treatment Passivation, electropolishing, or as-machined
Quality Control

Every flange end cover undergoes rigorous quality inspection to ensure reliability in critical applications:

  • 100% dimensional inspection using CMM (Coordinate Measuring Machine) and precision measuring instruments
  • Surface finish verification using profilometer to confirm sealing face quality
  • Material traceability with mill test reports (MTR) per EN 10204 3.1
  • Pressure testing available upon request for leak-proof verification
  • Visual inspection for surface defects, scratches, or machining marks
  • Third-party inspection accepted (SGS, BV, TÜV, etc.) upon request
Customization Options

We offer comprehensive OEM/ODM services to meet specific project requirements:

  • Dimensions: Custom outer diameter, thickness, bore size, and overall height
  • Flange Standards: ASME, DIN, JIS, GB, or custom dimensions per drawing
  • Sealing Face: RF, FF, RTJ, tongue & groove, male & female, or custom configurations
  • Materials: SS304, SS316L, SS316Ti, duplex stainless steel, Hastelloy®, Inconel®, titanium
  • Surface Treatment: Passivation, electropolishing, mechanical polishing, coating
  • Marking: Laser engraving of part numbers, material grades, pressure ratings, and logos
  • Documentation: Material test reports, dimensional inspection reports, pressure test certificates, NDE reports (if applicable)
High Precision CNC Turned Stainless Steel Flange End Cover for Leak-Proof Sealing in Gas-Liquid Separators 0
Frequently Asked Questions (FAQ)
Material & Manufacturing
Q1: What materials are available for the flange end cover?

A: We offer a range of stainless steel materials to suit different application requirements:

Material Key Features Typical Applications
SS304 Good corrosion resistance, cost-effective General industrial, food processing, water treatment
SS316L Excellent corrosion resistance, low carbon content Chemical processing, marine, pharmaceutical, high-chloride environments
SS316Ti Enhanced high-temperature stability High-temperature service, heat exchangers
Duplex / Super Duplex High strength, exceptional chloride resistance Offshore, oil & gas, desalination
Hastelloy® / Inconel® Extreme corrosion and heat resistance Severe chemical environments, high-temperature applications

Other materials are available upon request. Material test reports (MTR) per EN 10204 3.1 are provided for full traceability.

Q2: What manufacturing processes are used, and what precision can you achieve?

A: All flange end covers are manufactured on advanced CNC turning centers and machining centers. Key precision capabilities include:

  • Dimensional tolerance: ±0.005 mm to ±0.01 mm on critical features (sealing surface, bore diameter, flange thickness)
  • Concentricity: ≤0.02 mm between the flange face and bore, achieved through single-setup machining
  • Surface finish: Ra ≤ 1.6 μm on sealing faces as standard; Ra ≤ 0.8 μm available for demanding applications
  • Thread accuracy: 6H/6g tolerance for threaded connections if applicable
Q3: How do you ensure consistency across large production batches?

A: We employ a comprehensive quality control system that includes:

  • CNC program standardization to eliminate operator variability
  • In-process inspection using precision gauges and probes
  • First article inspection (FAI) for every new production run
  • Statistical process control (SPC) to monitor dimensional stability
  • Final 100% inspection of critical dimensions using CMM and optical comparators
Performance & Sealing
Q4: What pressure ratings are available?

A: We manufacture flange end covers to match standard pressure classes and custom requirements:

Standard Pressure Ratings
ASME B16.5 Class 150, Class 300, Class 600, Class 900, Class 1500
DIN EN 1092-1 PN6, PN10, PN16, PN25, PN40, PN63, PN100
JIS B2220 5K, 10K, 16K, 20K, 30K
GB/T 9119 PN6, PN10, PN16, PN25, PN40
Custom Any pressure rating per customer specification

For custom designs, we can accommodate pressure ratings up to 40 bar (approximately 580 psi) or higher, depending on size, material, and design parameters.

Q6: How do you ensure leak-proof performance?

A: Leak-proof performance is ensured through multiple quality measures:

  1. Precision-machined sealing surface with controlled surface finish (Ra ≤ 1.6 μm minimum)
  2. Accurate flatness across the sealing face, verified using precision measuring tools
  3. Correct gasket groove dimensions (if applicable) to ensure proper compression
  4. Optional pressure testing of finished components upon request
  5. Material selection appropriate for the operating media and temperature

For critical applications, we recommend providing operating conditions (pressure, temperature, media) so we can verify the design suitability.

Q7: What is the temperature range for this product?

A: The temperature range depends on the material selection:

Material Temperature Range
SS304 / SS316L -196°C to +425°C (cryogenic to high-temperature service)
SS316Ti -196°C to +600°C
Duplex Stainless -50°C to +300°C

Note: The actual operating temperature may be limited by the gasket or seal material used. Please specify your operating conditions for proper material selection.

Customization & Ordering
Q8: Can you produce non-standard sizes or custom designs?

A: Yes. We specialize in custom manufacturing and OEM services. We can produce flange end covers based on:

  • Engineering drawings (PDF, DWG, DXF)
  • 3D models (STEP, IGES, SolidWorks, STP)
  • Physical samples for replication
  • Specification sheets with dimensions, material, and standard requirements

Customization options include:

  • Outer diameter, thickness, and overall height
  • Bore diameter and internal features
  • Bolt hole size, count, and circle diameter
  • Sealing face configuration and groove dimensions
  • Material selection beyond standard options
  • Surface treatment and finishing
Products
PRODUCTS DETAILS
High Precision CNC Turned Stainless Steel Flange End Cover for Leak-Proof Sealing in Gas-Liquid Separators
MOQ: 1000pcs
Price: $0.5-2
Standard Packaging: Wooden case
Delivery Period: 30 days
Payment Method: D/A,D/P,T/T
Supply Capacity: 10000PCS/month
Detail Information
Place of Origin
Qingdao, China
Brand Name
Qingdao Sande Tech Co.,Ltd
Certification
ISO, DIN, AISI, ASTM, BS, JIS, etc.
Model Number
OEM
Process:
Turning And Milling
Package:
Wooden Box
Surface Treatment:
Painting,electrophoresis.
Production Method:
CNC Machining
Drw Format:
PDF/DWG/IGS/STP/ Etc
Function:
Supports Precise Machining
Capacity:
10, 000pieces Per Month
Value:
ISO 9001
Minimum Order Quantity:
1000pcs
Price:
$0.5-2
Packaging Details:
Wooden case
Delivery Time:
30 days
Payment Terms:
D/A,D/P,T/T
Supply Ability:
10000PCS/month
Highlight

CNC turned stainless steel flange cover

,

leak-proof gas-liquid separator end cover

,

precision machined flange end cover

Product Description
High Precision CNC Turned Flange End Cover for Gas-Liquid Separator Components
Product Overview

The High Precision CNC Turned Flange End Cover is a precision-engineered closure component specifically designed for gas-liquid separators, pressure vessels, and industrial tank systems. Manufactured through advanced CNC turning processes, this flange end cover provides reliable sealing, structural integrity, and dimensional consistency for demanding separation applications.

As a critical component in separator systems, the flange end cover serves as the access point for inspection, maintenance, and internal component replacement. Its precision-machined sealing surface ensures leak-proof operation under varying pressure and temperature conditions, while the robust stainless steel construction delivers long-term durability in corrosive industrial environments.

Key Features & Advantages
  • High Precision CNC Turning
    • Manufactured on advanced CNC lathes and turning centers, achieving dimensional tolerances of ±0.01 mm to ±0.005 mm on critical features
    • Single-setup machining ensures perfect concentricity between the flange face, sealing groove, and bore diameter
    • Superior surface finish of Ra ≤ 1.6 μm on sealing surfaces, with Ra ≤ 0.8 μm available for demanding applications
    • Consistent quality across production batches, eliminating variations common in manual machining
  • Premium Material Selection
    • Standard options: Stainless Steel SS304 and SS316L, offering excellent corrosion resistance
    • SS304: Suitable for general industrial applications with moderate corrosion requirements
    • SS316L: Enhanced resistance to chlorides, acids, and corrosive media; ideal for marine, chemical, and pharmaceutical environments
    • Additional materials available: SS316Ti, duplex stainless steel, Hastelloy®, Inconel®, and titanium for specialized applications
  • Reliable Sealing Performance
    • Flange face machined to industry standards: ASME B16.5, DIN EN 1092-1, JIS B2220, or GB/T 9119 as specified
    • Available sealing face types:
      • RF (Raised Face) - Standard for spiral wound and flat gaskets
      • FF (Flat Face) - For full-face gaskets and low-pressure applications
      • RTJ (Ring Type Joint) - For high-pressure, high-temperature services
    • Precision-machined gasket groove ensures consistent compression and leak-proof operation
    • Compatible with various sealing solutions: spiral wound gaskets, O-rings, flat gaskets, and metal ring gaskets
  • Structural Integrity
    • Designed to withstand pressure ratings up to 40 bar or higher, depending on size and material
    • Suitable for operating temperatures ranging from -40°C to +300°C, with material and seal selection determining the specific range
    • Robust wall thickness design ensures resistance to deformation under thermal cycling and pressure fluctuations
Technical Specifications
Parameter Details
Product Name High Precision CNC Turned Flange End Cover
Material SS304, SS316L, SS316Ti (custom materials available)
Manufacturing Process CNC Turning, CNC Machining
Dimensional Tolerance ±0.005 mm - ±0.01 mm (customizable)
Surface Finish Ra ≤ 1.6 μm (sealing face), Ra ≤ 3.2 μm (non-sealing surfaces)
Flange Standards ASME B16.5, DIN EN 1092-1, JIS B2220, GB/T 9119, or custom
Sealing Face Type RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint), or custom
Pressure Rating Class 150, Class 300, Class 600, PN10, PN16, PN25, PN40, or custom
Size Range DN50 - DN1000 (2″ - 40″) or custom sizes
Temperature Range -40°C to +300°C (dependent on material and gasket)
Surface Treatment Passivation, electropolishing, or as-machined
Quality Control

Every flange end cover undergoes rigorous quality inspection to ensure reliability in critical applications:

  • 100% dimensional inspection using CMM (Coordinate Measuring Machine) and precision measuring instruments
  • Surface finish verification using profilometer to confirm sealing face quality
  • Material traceability with mill test reports (MTR) per EN 10204 3.1
  • Pressure testing available upon request for leak-proof verification
  • Visual inspection for surface defects, scratches, or machining marks
  • Third-party inspection accepted (SGS, BV, TÜV, etc.) upon request
Customization Options

We offer comprehensive OEM/ODM services to meet specific project requirements:

  • Dimensions: Custom outer diameter, thickness, bore size, and overall height
  • Flange Standards: ASME, DIN, JIS, GB, or custom dimensions per drawing
  • Sealing Face: RF, FF, RTJ, tongue & groove, male & female, or custom configurations
  • Materials: SS304, SS316L, SS316Ti, duplex stainless steel, Hastelloy®, Inconel®, titanium
  • Surface Treatment: Passivation, electropolishing, mechanical polishing, coating
  • Marking: Laser engraving of part numbers, material grades, pressure ratings, and logos
  • Documentation: Material test reports, dimensional inspection reports, pressure test certificates, NDE reports (if applicable)
High Precision CNC Turned Stainless Steel Flange End Cover for Leak-Proof Sealing in Gas-Liquid Separators 0
Frequently Asked Questions (FAQ)
Material & Manufacturing
Q1: What materials are available for the flange end cover?

A: We offer a range of stainless steel materials to suit different application requirements:

Material Key Features Typical Applications
SS304 Good corrosion resistance, cost-effective General industrial, food processing, water treatment
SS316L Excellent corrosion resistance, low carbon content Chemical processing, marine, pharmaceutical, high-chloride environments
SS316Ti Enhanced high-temperature stability High-temperature service, heat exchangers
Duplex / Super Duplex High strength, exceptional chloride resistance Offshore, oil & gas, desalination
Hastelloy® / Inconel® Extreme corrosion and heat resistance Severe chemical environments, high-temperature applications

Other materials are available upon request. Material test reports (MTR) per EN 10204 3.1 are provided for full traceability.

Q2: What manufacturing processes are used, and what precision can you achieve?

A: All flange end covers are manufactured on advanced CNC turning centers and machining centers. Key precision capabilities include:

  • Dimensional tolerance: ±0.005 mm to ±0.01 mm on critical features (sealing surface, bore diameter, flange thickness)
  • Concentricity: ≤0.02 mm between the flange face and bore, achieved through single-setup machining
  • Surface finish: Ra ≤ 1.6 μm on sealing faces as standard; Ra ≤ 0.8 μm available for demanding applications
  • Thread accuracy: 6H/6g tolerance for threaded connections if applicable
Q3: How do you ensure consistency across large production batches?

A: We employ a comprehensive quality control system that includes:

  • CNC program standardization to eliminate operator variability
  • In-process inspection using precision gauges and probes
  • First article inspection (FAI) for every new production run
  • Statistical process control (SPC) to monitor dimensional stability
  • Final 100% inspection of critical dimensions using CMM and optical comparators
Performance & Sealing
Q4: What pressure ratings are available?

A: We manufacture flange end covers to match standard pressure classes and custom requirements:

Standard Pressure Ratings
ASME B16.5 Class 150, Class 300, Class 600, Class 900, Class 1500
DIN EN 1092-1 PN6, PN10, PN16, PN25, PN40, PN63, PN100
JIS B2220 5K, 10K, 16K, 20K, 30K
GB/T 9119 PN6, PN10, PN16, PN25, PN40
Custom Any pressure rating per customer specification

For custom designs, we can accommodate pressure ratings up to 40 bar (approximately 580 psi) or higher, depending on size, material, and design parameters.

Q6: How do you ensure leak-proof performance?

A: Leak-proof performance is ensured through multiple quality measures:

  1. Precision-machined sealing surface with controlled surface finish (Ra ≤ 1.6 μm minimum)
  2. Accurate flatness across the sealing face, verified using precision measuring tools
  3. Correct gasket groove dimensions (if applicable) to ensure proper compression
  4. Optional pressure testing of finished components upon request
  5. Material selection appropriate for the operating media and temperature

For critical applications, we recommend providing operating conditions (pressure, temperature, media) so we can verify the design suitability.

Q7: What is the temperature range for this product?

A: The temperature range depends on the material selection:

Material Temperature Range
SS304 / SS316L -196°C to +425°C (cryogenic to high-temperature service)
SS316Ti -196°C to +600°C
Duplex Stainless -50°C to +300°C

Note: The actual operating temperature may be limited by the gasket or seal material used. Please specify your operating conditions for proper material selection.

Customization & Ordering
Q8: Can you produce non-standard sizes or custom designs?

A: Yes. We specialize in custom manufacturing and OEM services. We can produce flange end covers based on:

  • Engineering drawings (PDF, DWG, DXF)
  • 3D models (STEP, IGES, SolidWorks, STP)
  • Physical samples for replication
  • Specification sheets with dimensions, material, and standard requirements

Customization options include:

  • Outer diameter, thickness, and overall height
  • Bore diameter and internal features
  • Bolt hole size, count, and circle diameter
  • Sealing face configuration and groove dimensions
  • Material selection beyond standard options
  • Surface treatment and finishing