ASME B16.1 Flange Manufacturer, Steel Flange ASME B16.1, Steel Pipe Flange

Steel Flange ASME B16.1 is the standard that covers cast iron & mild steel pipe flanges and flanged fittings used for valves, pumps, and pressure vessels in various industrial applications. These flanges are designed for low-pressure service at ambient temperatures and are typically used in plumbing, heating, and cooling applications. Here's a detailed breakdown of ASME B16.1 flanges 

Designation: Steel Flange ASME B16.1

Scope: Covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing for cast iron flanges and flanged fittings.

Steel Flange ASME B16.1 are rated for Class 25, 125, and 250. The pressure rating decreases as the temperature increases. The flanges are primarily designed to operate at:

• Class 25: Rated for 25 psi at ambient temperatures.
• Class 125: Rated for 125 psi at ambient temperatures.
• Class 250: Rated for 250 psi at ambient temperatures.

Steel Flange ASME B16.1 are made of cast iron & mild steel conforming to ASTM A126 / IS 2062.

Suitable for non-corrosive environments or low-pressure applications where cast iron is commonly used due to its good machinability, ease of casting, and cost-effectiveness.

Size Range: 1/4 inch to 24 inches nominal pipe size (NPS).

Face Types: Available in flat face (FF) and raised face (RF).

Drilling Patterns: Bolt holes are aligned according to ASME B16.1 standards for compatibility with other ASME B16 standards flanges and equipment.

The most commonly used Steel Flange ASME B16.1:

• Slip-On Flanges: Used for low-pressure applications. The flange is slipped over the pipe and then welded both inside and outside.
• Blind Flanges: Used to seal off the ends of pipes or valves, allowing easy access for maintenance and pressure testing.
• Threaded Flanges: Feature internal threads, making them suitable for low-pressure, non-welded connections.

Steel Flange ASME B16.1 flanges are ideal for:

• Low-pressure water systems
• Fire protection piping
• HVAC systems
• Plumbing installations

All Steel flange ASME B16.1 are tested for pressure integrity.

Certification involves stamping or marking to indicate the class rating, material grade, and size.

Cost-effective due to the use of cast iron & mild steel.

Easy installation and removal for maintenance purposes.

Suitable for low-temperature and low-pressure applications.
asme b16.1 flange manufacturer, steel flange asme b16.1

Water treatment plants

Oil & gas processing

Heating, ventilation, and air conditioning (HVAC)

Fire protection systems

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