Haihao Group provides EN1092-1 P250GH galvanized threaded flanges for Slovak customer

In European pipeline systems, the EN1092-1 P250GH galvanized threaded flange is widely recognized for its reliability, versatility, and corrosion resistance. Recently, Haihao Group completed a bulk order for a Slovakian client, supplying multiple sizes of EN1092-1 carbon steel threaded flanges with cold galvanization (zinc coating). These flanges are used in low- to medium-pressure pipelines where easy connection and disconnection are required—ideal for industrial, HVAC, and plumbing applications.

What is an EN1092-1 threaded flange?

The EN1092-1 standard is the European specification for flanges and their joints. A threaded flange, also known as a screwed flange, connects to a pipe via male threading without welding, making it suitable for applications where heat-based methods are undesirable.

The P250GH material refers to a pressure vessel quality carbon steel with excellent mechanical properties and suitability for high-temperature service. The cold galvanization (zinc coating) enhances corrosion resistance, especially in outdoor or humid environments.

Technical Specification of Supplied Flanges

Haihao Group supplied the following flange sizes to the Slovakian customer, all manufactured according to EN1092-1 Type 13 (threaded type), PN16 pressure rating, and made from P250GH carbon steel with cold zinc coating:

DN Size	Nominal Pipe Size (Inch)	Pressure Rating	Type	Coating
DN15	1/2″	PN16	Threaded	Zinc Coated
DN32	5/4″ (1-1/4″)	PN16	Threaded	Zinc Coated
DN40	6/4″ (1-1/2″)	PN16	Threaded	Zinc Coated
DN50	2″	PN16	Threaded	Zinc Coated
DN65	2-1/2″ (2.5″)	PN16	Threaded	Zinc Coated
DN80	3″	PN16	Threaded	Zinc Coated
DN100	4″	PN16	Threaded	Zinc Coated

All flanges were produced with ISO 7/1 (BSPT) or ISO 228 (BSPP) thread options as per the customer’s request.

Why Choose P250GH Material?

P250GH is a non-alloy steel grade known for:

• Excellent weldability and formability
• Good mechanical strength under pressure and high temperature
• Compliance with EN 10216 and EN 10028 standards for pressure-bearing components

When combined with cold zinc coating, it offers long-term protection against rust, making it ideal for water lines, compressed air systems, and low-pressure steam pipelines.

Zinc Coating for Enhanced Corrosion Resistance

Cold galvanization (also known as electro-galvanization) involves coating the flange surface with a thin layer of zinc, which:

Prevents oxidation and rust

Maintains a smooth and visually clean finish

Is ideal for indoor installations or environments with moderate humidity

This treatment extends the service life of the flange and reduces the need for frequent maintenance or replacements.

Applications of EN1092-1 P250GH galvanized threaded flange

The supplied flanges are ideal for use in:

• Building water supply systems
• Industrial pipelines for air, oil, and gas
• Firefighting pipelines
• Heating, ventilation, and air conditioning (HVAC) systems
• Municipal and infrastructure projects

Because threaded flanges require no welding, they are a top choice for systems that need quick installation, easy maintenance, or periodic disassembly.

Haihao Group: Your Reliable Flange Supplier

Haihao Group has over 40 years of experience manufacturing forged flanges and pipe fittings in accordance with EN, DIN, ANSI, ASME, GOST, and JIS standards. For this Slovakian order, we provided:

• Complete documentation (MTC, inspection reports)
• Strict dimensional control and thread precision
• Timely delivery and customized packaging

All products passed 100% inspection before shipment, ensuring top-quality performance for our client’s pipeline system.

The EN1092-1 P250GH galvanized threaded flange offers an efficient, corrosion-resistant solution for medium-pressure pipeline connections. With a full range of sizes from DN15 to DN100, Haihao Group remains committed to providing reliable flange solutions for global partners.

Looking for a dependable supplier for EN1092-1 threaded flanges? Contact Haihao Group today for technical support, quotation, or custom production. Email:sales@haihaogroup.com