What are flange dimensions?

What are flange dimensions?

Diameters and bolt circles for standard ASME B16. 5 flanges – 1/4 to 24 inches – Class 150 to 2500.

Nominal Pipe Size NPS (inches) Class 400
Diameter of Flange (inches) Diameter of Bolt Holes (inches)
1 4-7/8 0.75
1-1/4 5-1/4 0.75
1-1/2 6-1/8 0.88

What is long weld neck flange?

Long Weld Neck Flanges are like weld neck flanges, except for the neck, which is extended and acts like a boring extension. Long weld neck flanges can be used in high pressure industrial applications, as well as high temperature situations. They are often utilized in the oil and gas or petrochemical industries.

How thick is a 150 flange?

ANSI/ASME B16. 5 Class 150 Forged Flanges Add Flanges

Nominal Size Outside Diameter (OD) Min. Thickness (T)
1⁄2 3.50 0.38
3⁄4 3.88 0.44
1 4.25 0.50
11⁄4 4.62 0.56

What best describes a weld neck flange?

A weld neck flange (also known as a high-hub flange and tapered hub flange) is a type of flange. A weld neck flange consists of a circular fitting with a protruding rim around the circumference. Generally machined from a forging, these flanges are typically butt welded to a pipe.

What is a reducing flange?

Reducing flanges are a specialty flange that are most often used on projects that require the fitting together of different sized pipes. There are several types of reducing flanges including weld-neck reducing flanges, slip-on reducing flanges and threaded reducing flanges.

How do you calculate flange weight?

How to calculate the weight of pipe flanges?

  1. Pipe flanges are used to connect pipe sections to other pipe sections, inline components, and equipment.
  2. 1.The materials used to construct a pipe flanges directly relate to the weight and the pressure it can handle.
  3. Pipe flanges volume=π/4*A1*A1-B1*B1-D1*C1*C1)*C(mm)

What is the difference between ANSI and ASME flanges?

ANSI Flanges are manufactured based on standards developed by organizations and ASME Flanges are based on codes and standards for mechanical devices. The ANSI Flanges are designed based on approx. 9500 standards whereas ASME Flanges manufactured on 600 codes and standards for different mechanical devices.

What is RF in flange?

Raised Face Flanges (RF) The Raised Face Flange is the most common type used in process plant applications, and can be easily identified. It is referred to as a face raised because the surfaces of the gasket are positioned above the face of the bolting circle.

What is the difference between slip on and weld neck flange?

The Weld Neck Flange offers increased strength under higher pressures, subzero or elevated temperatures that cause line expansion or retraction or other variable forces. The Slip On Flange is designed to be welded to pipe then a fitting as fittings are designed for butt weld connections.

Do flanges have schedules?

Socket Weld Flanges are available in pressure from 150# and up and pipe schedule 40 to schedule 160. Specifying the pipe schedule ensures that ID of the SW Flange matches the ID of pipe for smooth fluid flow.

What are the dimensions of a weld neck flange?

The charts show the dimensions of weld neck flange class 150, 300, 400, 900, 1500, 2500 in inches and in millimeters (with dimensional tolerances). When O is 24″ or less. When O is over 24″.

What does DN mean in flange dimensions?

RoyMech Resources Flanges BS EN 1092 PN16 Flange Dimensions Flange – Pipe Index BS EN 1092-1 PN 16 Dimensions DN = Nominal size, D = Outside Diameter, A = Outside Dia of Neck , B1 = Bore of Type 01 & 12 Flange, C1 = Thickness of Plate Flange,

What does C2 mean on a flange type 05?

C2 = Thickness of Weld_Neck and Boss Flange , N1 = Dia of Weld Neck , N2 = Dia of Boss ,R = corner Radius, H1 = Length of Boss Flange, H2 = Length of Weld Neck Flange, H3 = Length of Neck : S = neck thickness Note: The flange types shown are only a small part of the range covered in BS EN 1092-1. type 05 is a blank flange