Hebei Haihao High Pressure Flange Pipe Fitting Group Co.,Ltd
EN 1092-1 Type 11 WN Flanges and Blind Flanges Delivered to Montenegro by Haihao Group

EN 1092-1 Type 11 WN Flanges and Blind Flanges Delivered to Montenegro by Haihao Group

Haihao Group has successfully completed the production and shipment of a batch of EN 1092-1 Type 11 flanges and blind flanges for a customer in Montenegro. Manufactured from RSt 37.2 carbon steel, the products comply with EN 1092-1 Type 11 Form B requirements and are supplied with anti-rust oil protection for safe overseas transportation and long-term storage.

This order demonstrates Haihao Group’s capability to manufacture European-standard flanges with strict dimensional accuracy and customized machining to meet project-specific requirements.

EN 1092-1 Type 11 Flanges Manufactured for PN16 Pipeline Systems

The shipment mainly includes welding neck (WN) RF flanges and RF blind flanges designed for PN16 piping applications.

The WN flanges supplied include:

  • DN32 PN16 – 42.4 × 2.6 mm
  • DN100 PN16 – 108 × 3.6 mm
  • DN100 PN16 – 114.3 × 3.6 mm
  • DN150 PN16 – 168.3 × 4.5 mm
  • DN250 PN16 – 273 × 6.3 mm

Blind flanges supplied include:

  • DN32 PN16
  • DN40 PN16
  • DN50 PN16
  • DN65 PN16 (4 bolt holes)
  • DN100 PN16

Every EN 1092-1 Type 11 flange was manufactured according to the specified dimensions and inspected before shipment to ensure full compliance with customer drawings and European standards.

EN 1092-1 Type 11 RSt 37.2 welding neck flanges and blind flanges manufactured by Haihao Group

EN 1092-1 Type 11 RSt 37.2 welding neck flanges and blind flanges manufactured by Haihao Group

Precision Machining for Reliable Installation

A special requirement of this project was precision fine-thread machining, ensuring excellent thread quality and smooth assembly during installation. Combined with carefully controlled flange dimensions and sealing face accuracy, these products provide reliable alignment for industrial piping systems.

To protect the machined surfaces during transportation, every flange was coated with anti-rust oil immediately after final inspection.

The combination of accurate machining, corrosion protection, and strict dimensional control makes each EN 1092-1 Type 11 flange suitable for water treatment, utility pipelines, HVAC systems, industrial plants, and general process piping.

Strict Quality Inspection Before Shipment

Quality assurance remains a priority throughout production. Each flange was inspected for:

  • Dimensional accuracy
  • Facing and bore tolerances
  • Thread quality
  • Surface condition
  • Marking verification
  • Quantity confirmation before packing

These inspection procedures help ensure every EN 1092-1 Type 11 flange arrives ready for installation without additional machining or adjustment.

Haihao Group Supplies European Standard Flanges Worldwide

Haihao Group manufactures a complete range of carbon steel, stainless steel, alloy steel, duplex stainless steel, and nickel alloy flanges for international pipeline projects.

Our product range includes:

  • Welding Neck Flanges (WN)
  • Slip-On Flanges (SO)
  • Blind Flanges (BL)
  • Socket Weld Flanges
  • Threaded Flanges
  • Lap Joint Flanges
  • Custom flanges manufactured to EN, ASME, DIN, JIS, GOST and other international standards

Whether your project requires standard products or customized flange solutions, Haihao Group provides professional manufacturing, strict quality control, and dependable global delivery.

Contact Haihao Group today to learn more about our EN 1092-1 Type 11 flange manufacturing capabilities and request a quotation for your next pipeline project.

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