AS 4087 Flanges Manufacturer & Supplier

AS 4087 Flange Specifications

Standard

AS 4087

Nominal Size

Confirm the required DN size against the applicable product range.

Pressure Class

Specify PN16, PN21, or PN35 only where supported by the relevant product and standard.

Flange Type

Confirm the required configuration and compatibility with the piping system.

Material

Select the grade based on operating conditions and project requirements.

Dimensions

Verify flange OD, thickness, pitch circle diameter, bolt-hole size, and bolt-hole count against the applicable chart.

Types of AS 4087 Flanges

Common flange configurations supplied for AS 4087 applications may include slip-on and blind flanges. Other configurations should be listed only where their compliance with the specified standard has been verified.

Slip-On Flanges

Fit over the pipe and are joined by welding in accordance with the applicable design and installation requirements.

Blind Flanges

Close off a pipe end, valve opening, or equipment connection.

Slip-On Flanges: Fit over the pipe and are joined by welding in accordance with the applicable design and installation requirements.
Blind Flanges: Close off a pipe end, valve opening, or equipment connection.
Other Configurations: Confirm availability and standard compliance before specifying weld neck, threaded, socket weld, or lap joint designs.

AS 4087 PN35 Slip-On Flange Dimensions Chart

Use the dimensional chart to compare nominal pipe size, flange outside diameter, thickness, pitch circle diameter, bolt-hole diameter, and number of bolt holes. Confirm the applicable AS 4087 edition and pressure class before using any dimensions for fabrication or installation.

NOMINAL PIPE SIZE		FLANGE OUTSIDE DIAMETER	THICKNESS OF DIAMETER	DRILLING DATA
				PITCH CIRCLE DIAMETER	BOLT HOLE DIAMETER	NUMBER OF BOLT HOLES
				PITCH CIRCLE DIAMETER	BOLT HOLE DIAMETER	NUMBER OF BOLT HOLES
MM	INCH	OD	T	PCD	H
50	2	165	19	127	18	4
65	2 1/2	185	19	146	18	8
80	3	205	24	165	18	8
100	4	230	24	191	18	8
150	6	305	31	260	22	12
200	8	370	31	324	22	12
225	9	405	38	356	26	12
250	10	430	38	381	26	12
300	12	490	38	438	26	16
350	14	550	48	495	30	16
375	15	580	48	521	30	16
400	16	610	48	552	30	20
450	18	675	58	610	33	20
500	20	735	58	673	33	24
600	24	850	68	781	36	24
700	28	935	78	857	36	24
750	30	1015	78	940	36	28
800	32	1060	84	984	36	28
900	36	1185	94	1105	39	32
1000	40	1275	98	1194	39	36
1200	48	1530	108	1441	42	40

Frequently Asked Questions About AS 4087 Flanges

What are AS4087 flanges used for?

AS 4087 flanges are used to connect pipes, valves, and fittings in compatible piping systems, including water and wastewater infrastructure.

What are the standard AS4087 flange dimensions?

AS 4087 flange dimensions depend on nominal diameter, pressure class, and flange configuration. Check the applicable dimensional chart for outside diameter, thickness, pitch circle diameter, bolt-hole diameter, and bolt-hole count.

Is there a difference between AS4087 and AS 4087 flanges?

No. AS4087 and AS 4087 are alternative ways of writing the same standard designation.

How do I select the right AS4087 flange for my piping system?

Select the flange by matching the required nominal diameter, pressure class, material, flange configuration, and drilling dimensions with the connected piping system.

Which pressure ratings are available for AS4087 flanges?

The page lists PN16, PN21, and PN35 options. Confirm the required pressure class and current availability with Tesco Steel & Engineering before ordering.

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AS 4087 Flanges Manufacturer and Supplier

AS 4087 PN35 Slip-On Flange Dimensions Chart