Welcome to Ecer
Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
Consent Do not consent
China factories

Chat Now Send Email
China factory - YUHONG HOLDING GROUP CO., LTD

YUHONG HOLDING GROUP CO., LTD

  • China,Ningbo
  • Verified Supplier
  1. Home
  2. Products
  3. About Us
  4. Contact Us

Leave a Message

we will call you back quickly!

Submit Requirement
  1. Home>
  2. Air Cooled Heat Exchanger>
  3. API 661 Compliant Finned Tube Bundle for Air-Cooled Heat Exchangers with 10.0
China API 661 Compliant Finned Tube Bundle for Air-Cooled Heat Exchangers with 10.0
China API 661 Compliant Finned Tube Bundle for Air-Cooled Heat Exchangers with 10.0

  1. China API 661 Compliant Finned Tube Bundle for Air-Cooled Heat Exchangers with 10.0
  2. China API 661 Compliant Finned Tube Bundle for Air-Cooled Heat Exchangers with 10.0
  3. China API 661 Compliant Finned Tube Bundle for Air-Cooled Heat Exchangers with 10.0
  4. China API 661 Compliant Finned Tube Bundle for Air-Cooled Heat Exchangers with 10.0

API 661 Compliant Finned Tube Bundle for Air-Cooled Heat Exchangers with 10.0

  1. MOQ： 1 Set
  2. Price： 1 - 1000000 USD
  3. Get Latest Price
Fin height 8-16 mm
Delivery Time 30 - 90 Days
Design temperature -40°C to +450°C
Payment Terms T/T,L/C
Tube OD 16-63 mm
Fin pitch 7-11.5 FPI
Supply Ability 100 Sets per month
Design pressure 10.0 MPa
Fin thickness ~0.4 mm
Packaging Details Pallet
Model Number Finned Tube Bundle
Certification API 661, ASME, ASTM
Brand Name YUHONG
Place of Origin China

View Detail Information

Inquiry by Email Get Latest Price
Chat online Now Ask for best deal

Explore similar products

  1. China API 661 Forced Draft Air Cooled Exchanger for Petroleum

    API 661 Forced Draft Air Cooled Exchanger for Petroleum

    Chat online Now
  2. China API 661 Air Cooled Heat Exchanger High Pressure Finned Tube Bundle for Refinery

    API 661 Air Cooled Heat Exchanger High Pressure Finned Tube Bundle for Refinery

    Chat online Now
  3. China API 661 Forced Draft Air Cooled Exchanger Optimal Flow Cooling for Power Plant

    API 661 Forced Draft Air Cooled Exchanger Optimal Flow Cooling for Power Plant

    Chat online Now
  4. China API 661 Air Cooled Heat Exchanger Finned Tube Bundle for Hydrofinished Oil

    API 661 Air Cooled Heat Exchanger Finned Tube Bundle for Hydrofinished Oil

    Chat online Now
  1. Product Details
  2. Company Details

Product Specification

Fin height 8-16 mm Delivery Time 30 - 90 Days
Design temperature -40°C to +450°C Payment Terms T/T,L/C
Tube OD 16-63 mm Fin pitch 7-11.5 FPI
Supply Ability 100 Sets per month Design pressure 10.0 MPa
Fin thickness ~0.4 mm Packaging Details Pallet
Model Number Finned Tube Bundle Certification API 661, ASME, ASTM
Brand Name YUHONG Place of Origin China
High Light API 661 compliant finned tube bundle ，air-cooled heat exchanger with 10.0 MPa design ，forced draft finned tube heat exchanger
API 661 Finned Tube Bundle for Air-Cooled Heat Exchangers – Forced & Induced Draft Configurations for Refinery and Petrochemical Service
Yuhong Group Co., Ltd. engineers and supplies complete finned tube bundles for air-cooled heat exchangers (ACHEs) under API Standard 661, ASME Section VIII Division 1, and ISO 13706. Our product portfolio includes shell and tube heat exchangers, pressure vessels, U-tubes, finned tubes, tubesheets, baffles, and heads. All products are fabricated under ASME U-Stamp certification and comply with international classification society requirements.
Product Overview
The finned tube bundle is the core heat transfer element of an air-cooled heat exchanger. Ambient air is forced or induced across the bundle to remove heat from process fluid flowing inside the tubes. Fins are applied to the tube outside surface to compensate for the low convective heat transfer coefficient of air--typically 10-60 W/m²*K--compared to liquid or condensing fluids inside the tubes.
This bundle is designed and manufactured per API 661 (Air-Cooled Heat Exchangers for General Refinery Service), with thermal design following the API 661 framework. Design temperature ranges from -40°C to +450°C, with design pressure up to 10.0 MPa. The bundle is applicable to both forced-draft and induced-draft configurations, with horizontal tube arrangements as the standard configuration.
Key Components and Material Specifications
Component Material / Standard Key Specifications
Base Tubes ASME SA179 seamless cold-drawn low-carbon steel OD: 16-63 mm; wall thickness per ASME SA179 minimum-wall requirements
Base Tubes (alternative) ASTM A106 Gr.B / A213 TP304/316/321 / Duplex 2205 / Monel 400 / Inconel 625 Per ASME SA / ASTM standards
Fins Aluminum 1060 (Al1060) Fin height: 8-16 mm; fin pitch: 7-11.5 FPI; fin thickness: ~0.4 mm
Fin Bonding Types Embedded (G-type), extruded, L-foot, welded Max service temperature: embedded 400°C (750°F); welded >400°C
Tube Sheets Carbon steel / alloy steel ASME Sec. VIII Div. 1 compliant
Headers / Manifolds Carbon steel (coated) or stainless steel Designed per API 661; plug-type or cover-plate configuration
Structural Frame Hot-dip galvanized or stainless steel Supports wind, seismic, and operational loads
ASME SA179 Base Tube Properties
Tensile ≥325 MPa, Yield ≥180 MPa, Elongation ≥35%, Hardness ≤72 HRB.
Al1060 Fin Properties
Tensile ≥90 MPa, Yield ≥35 MPa, Elongation ≥25%, Thermal conductivity ~237 W/m*K, Max continuous operating temperature 285°C (545°F).
Testing and Quality Assurance
All finned tube bundles undergo inspection and testing in accordance with ASME Code requirements and API 661 guidelines:
Test Type Standard / Method Acceptance Criteria
Hydrostatic Test ASME Sec. VIII Div. 1 1.5 * design pressure; no leakage
Eddy Current Testing (ECT) ASME SA179 / ASTM A179 Detects surface and subsurface defects
Radiography (RT) ASME Sec. VIII Critical weld examination
Dye Penetrant (PT) / Magnetic Particle (MT) ASME Sec. V Surface defect detection
Dimensional Inspection Per design drawings Tube alignment, fin spacing, tube OD, fin height, fin pitch
Flattening & Flaring Tests ASME SA179 Verifies ductility and workability
Pull-Out Resistance In-house per ASME guidelines ≥70 N (fin-to-tube bond integrity)
Applications
API 661 finned tube bundles are deployed across the petroleum, petrochemical, and natural gas industries:
  • Crude Distillation Units (CDU) - Cooling of distillates, fuel oil residue, and side distillate streams
  • Hydrotreating Units (HDS, VGO HDT) - Cooling of reactor effluent containing H₂S and NH₄HS
  • Hydrocracking Units - Cooling of high-pressure post-reactor streams (sour service)
  • Fluid Catalytic Cracking (FCC) Units - Cooling of gas and heavy fractions, condensation of light hydrocarbons
  • Reforming Units (CCR, semi-regenerative) - Cooling of stabilized reformate and hydrogen-rich gas
  • Gas Fractionation Units (GFU) - Cooling of ethane, propane, and butane with partial condensation
  • Compressor Stations - Cooling of compressed gas (operating pressure up to 50 bar)
  • LNG Plants - Pre-cooling of natural gas prior to deep dehydration
  • Power Generation - Cooling of turbine and process streams
Technical Advantages and Customization
Thermal Performance - Parameter-Driven
Air-side heat transfer coefficients are calculated per the Briggs-Young fin-tube correlation, with LMTD correction for cross-flow applied per TEMA. Typical air face velocity ranges from 1.5 to 4.0 m/s, selected based on fan power limits and bundle geometry.
Material Selection Flexibility
Tube materials can be specified from carbon steel (SA179, SA106B) through stainless steels (TP304, TP316L, TP321), duplex (2205), and nickel alloys (Monel 400, Inconel 625) to match process corrosivity and temperature requirements.
Bundle Configuration Options
  • Single-pass or multi-pass (1 to 4 passes) tube side arrangements
  • Forced draft or induced draft fan configurations
  • Plug-type or cover-plate header designs
  • Horizontal, A-frame, or V-frame bundle orientations
Corrosion Protection
  • Minimum corrosion allowance: 1.5 mm (1/16 in) unless otherwise specified
  • Structural supports: hot-dip galvanized or epoxy-coated carbon steel
  • Fin ends protected with zinc or aluminum metallized coating per API 661
Sour Service Compliance
For hydrotreating and hydrocracking reactor effluent air coolers, materials comply with NACE MR0175 / ISO 15156 (SSCC/HIC).
Frequently Asked Questions
Q: What is the maximum design temperature for embedded G-type finned tubes?
A: Embedded (G-type) fins can operate continuously up to 400°C (750°F). Extruded fins are rated to 300°C (570°F), and L-footed fins to 130°C (270°F).
Q: What hydrostatic test pressure is applied to API 661 finned tube bundles?
A: Hydrostatic testing is performed at 1.5 * design pressure for both tubes and headers, with no leakage permitted.
Q: What NDT methods are typically specified for API 661 bundles?
A: Radiography (RT) for critical welds, dye penetrant (PT) or magnetic particle (MT) for surface defects, and eddy current testing (ECT) for tube integrity.
Q: What is the difference between forced draft and induced draft configurations?
A: Forced draft places fans beneath the bundle for easier maintenance access. Induced draft positions fans above the bundle, reducing hot-air recirculation risk and protecting the bundle from direct sunlight.
Q: Can the bundle be designed for sour service (wet H₂S)?
A: Yes. Materials for sour service are selected per NACE MR0175 / ISO 15156, with appropriate hardness control and resistance to sulfide stress corrosion cracking (SSCC) and hydrogen-induced cracking (HIC).
Q: What is the typical fin pitch range for air-cooled heat exchanger bundles?
A: Fin pitch typically ranges from 7 to 11.5 fins per inch (FPI), selected based on thermal duty, air-side pressure drop, and fouling propensity.
Contact Information
For technical inquiries, detailed quotations, or project-specific engineering support, please reach out to us directly:
Email: vladimir@steelseamlesspipe.com
Our engineering team is available to review your process data, provide thermal design calculations, and recommend the optimal finned tube bundle configuration for your air-cooled heat exchanger application.
API 661 Finned Tube Bundle for Air-Cooled Heat Exchangers

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Manufacturer,Exporter,Trading Company,Seller

  • Year Established:

    1990

  • Total Annual:

    50M-75M

  • Employee Number:

    50~850

  • Ecer Certification：

    Verified Supplier

.gtr-container-k7p2x9 { font-family: Arial, Helvetica, "Times New Roman", Arial, sans-serif; font-size: 14px; line-height: 1.6; color: #000000; padding: 16px; max-width: 100%; box-sizing: border-box; } .gtr-container-k7p2x9 p { margin-top: 0; margin-bottom: 1em; text-align: lef... .gtr-container-k7p2x9 { font-family: Arial, Helvetica, "Times New Roman", Arial, sans-serif; font-size: 14px; line-height: 1.6; color: #000000; padding: 16px; max-width: 100%; box-sizing: border-box; } .gtr-container-k7p2x9 p { margin-top: 0; margin-bottom: 1em; text-align: lef...

+ Read More

Get in touch with us

  • Reach Us
  • YUHONG HOLDING GROUP CO., LTD
  • 20 Floor, No.1 New World Building, NO.1018 Min'an Road, Yinzhou District, Ningbo, China, ZIP:315040
  • https://www.tema-heatexchanger.com/

Leave a Message, we will call you back quickly!

Email

Check your email

Phone Number

Check your phone number

Requirement Details

Your message must be between 20-3,000 characters!

Submit Requirement

Trade Alert - Delivering the latest product trends and industry news straight to your inbox.

Home Categories About Us
RFQ Report IPR products Privacy Policy Sitemap

© 2026 Chinax.com. All rights reserved.