Orifice flange supplier in UAE and SS orifice plate as per ASME B16.36

Stainless steel orifice plate flange manufacturer in Dubai

What are the export requirements for orifice flange in UAE?

The flange export requirements in the UAE may involve several aspects:

Complying with UAE's customs regulations
Obtaining necessary export licenses or permits
Ensuring proper documentation
Adhering to any specific product standards or certifications required by UAE authorities.

Schulzmaan, a reputed orifice flange supplier in UAE fulfills all these requirements. The export quality flange tapping orifice plate at the most competitive prices.

What is the role of pressure in the performance of a carbon steel orifice flange?

Pressure plays a vital role in the performance of a carbon steel orifice flange. They can create differential pressure in piping systems for flow measurement or control purposes. The pressure difference across the flange affects the accuracy and reliability of the flow measurement.

Buy weld neck orifice flange with jack screw at an unbelievable price

What is an stainless steel orifice flange and what is its purpose in piping systems?

A stainless steel orifice flange is used for flow measurement and control in piping systems. It has a unique configuration with a centered orifice plate that creates a pressure drop which allows precise flow measurement.

The flange helps regulate fluid flow, determine flow rates and calculate differential pressure. It is used in industries like oil & gas, chemical and water treatment.

Check recommended sizes of carbon steel orifice flange, and tapping orifice plate used in petrochemical industries

Table of content

Specialized in manufacturing

Orifice Flange

ASME B16.36 Orifice Flange Is Used To Measure The Flow Of Product Through The Piping System.

Size

1/2 Inches To 24 Inches

Class

300 To 2500

ASTM

A182, A105, A694

ASME

B16.36

ASME B16.36 Specification

Specifications	Orifice Flange
Size	1/2" to 24"
Testing	Hydrostatic testing machine Magnetic particle detector Direct-reading Spectrograph UI trasonic flaw detector
Methods Of Forging	Casting Forging Rolling Cutting
Use In	Marine & dredging Sanitation Process Instrumentation Oil and Gas Petrochemical/ Refinery/Chemical Power etc.
Class	300 To 2500
Orifice flange supplier in UAE	500 ton per month (Manufacturing Productivity)
Equipment	Pushing Machine Press machine electric bevelling machine
Supporting Material For Flanges	Gasket/ Ring Joint/ Flanges Bolts

Orifice Flange Price List

Description	Price In US ($)
FLANGES RF, ORIFICE, WN, SCH 80, 2 INCH	US $307.59 Per KG
FLANGES, RF, ORIFICE, WN, SCH 40, 1 3/4 INCH	US $227.85 Per KG
FLANGES, RF, ORIFICE, WN, SCH 40, 1 1/2 inch	US $184.05 Per KG
LOW TEMP FLANGES, 2 INCH, RF, ORIFICE, WN, 300 LB, SCH XS, JACK SCREWS & SW TAPS	US $24,583 Per KG
FLANGES, RF, ORIFICE, 1 1/2 INCH, WN, 300LB, STD LF2	US $704.95 Per KG
ORIFICE PLATE, DN 50, WITH FLANGES	US $279.57 Per KG
ORIFICE PLATE, DN 40, WITH FLANGES	US $256.64 Per KG
A105 RF, CL300, CARBON STEEL FLANGES - ORIFICE, SCH 20, DN250	US $1912.14 Per KG
A105 RF, CL300, CARBON STEEL FLANGES - ORIFICE, SCH 20, DN300	US $629.52 Per KG
CARBON STEEL FLANGES - ORIFICE, A105 RF, CL600, SCH 80, DN80	US $196.71 Per KG
LF2, RF, CL600, CARBON STEEL FLANGES - ORIFICE, SCH 80, DN80	US $39.35 Per KG
A105 RF, CL300, CARBON STEEL FLANGES - ORIFICE, SCH 20, DN350	US $2163.95 Per KG
A105 RF, CL300, CARBON STEEL FLANGES - ORIFICE, SCH 40, DN500	US $1573.78 Per KG
A105 RF, CL600, CARBON STEEL FLANGES - ORIFICE, SCH 80, DN400	US $1652.48 Per KG

Orifice Flange Types

Blind Orifice Plate

Orifice Tapping

Flange Tapping Orifice Plate

Concentric Orifice Plate

Eccentric Orifice Plate

Ring Joint Orifice Plate

Socket Weld Orifice Flange

Restriction Orifice Flanges

Rtj Orifice Plate

Weld Neck Orifice Flanges

ASME B16.36 Orifice Flanges

Stainless Steel Orifice Flanges

Carbon Steel Orifice Flanges

Orifice Plate Flanges

SS 304 Orifice Flanges

Restriction Orifice Plate Types

The typical designs of orifice plates are

Eccentric orifice plate
Segmental orifice plate
Continuous metals structure adds to piping system strength
Concentric orifice plate

Stockist of restriction orifice flange, and eccentric orifice plate in the Middle East in RTJ/ RF face

Orifice Flange Jack Screw

NPS	300#			400#			600#
NPS	Jack Screw Sizes	Lengths	Hole Size	Jack Screw Size	Length	Holes Size	Jack Screw Sizes	Lengths	Holes Size
1	5/8	2-3/4	11/16	5/8	2-3/4	11/16	5/8	2-3/4	11/16
1-1/4	5/8	2-3/4	11/16	5/8	2-3/4	11/16	5/8	2-3/4	11/16
1-1/2	5/8	2-3/4	11/16	5/8	2-3/4	11/16	5/8	2-3/4	11/16
2	5/8	2-3/4	11/16	5/8	2-3/4	11/16	5/8	2-3/4	11/16
2-1/2	5/8	2-3/4	13/16	5/8	2-3/4	13/16	3/4	2-3/4	13/16
3	3/4	2-3/4	13/16	3/4	2-3/4	13/16	3/4	2-3/4	13/16
4	3/4	2-3/4	13/16	3/4	3-1/4	7/8	3/4	3-1/4	7/8
5	3/4	2-3/4	7/8	3/4	3-1/4	7/8	3/4	3-1/2	7/8
6	3/4	2-3/4	7/8	7/8	3-1/2	1	7/8	4	1
8	3/4	3	7/8	7/8	4	1	7/8	4	1
10	1	3-1/2	1-1/8	7/8	4	1	7/8	4-1/2	1
12	1	3-1/2	1-1/8	7/8	4	1	7/8	4-1/2	1

Orifice Flange Tapping Standard

Popular tap locations for orifice plates

Flange Taps
Vena contracta taps
Radius taps
Corner taps

Orifice Tap Location

Stainless Steel Orifice Flange Weight Chart

Orifice Size in Inch	Weld Neck OD	Welding Neck Length	Diameter Of R/F	R/F Height	Weight in KG
1	33.4	81	50.8	2	4.5
1 1/2	48.3	84	73	2	6.5
2	60.3	84	92.1	2	7
2 1/2	73	87	104.8	2	7.5
3	88.9	87	127	2	9.4
4	114.3	90	157.2	2	13.2
6	168.3	98	215.9	2	14.6
8	219.1	110	269.9	2	30
10	273	116	323.8	2	41
12	323.8	129	381	2	62
14	355.6	141	412.8	2	84
16	406.4	144	469.9	2	111
18	457	157	533.4	2	138
20	508	160	584.2	2	171
24	610	167	692.2	2	247

Carbon Steel Orifice Plate Pressure Rating

Temperature (Dedgree C)	Class Of ASME B16.36 Flanges
Temperature (Dedgree C)	(150#)	(300#)	(400#)	(600#)	(900#)	(1500#)	(2500#)
-29 - 38	19.8	51.7	68.9	103.4	155	259	431
50	19.5	51.7	68.9	103.4	155	259	431
100	17.7	51.5	68.7	103.0	155	258	429
150	15.8	50.2	66.8	100.3	151	251	418
200	13.8	48.6	64.8	97.2	146	243	405
250	12.1	46.3	61.7	92.7	139	232	386
300	10.2	42.9	57.0	85.7	129	214	357
325	9.3	41.4	55.0	82.6	124	207	344
350	8.4	40.0	53.4	80.0	120	200	334
375	7.4	37.8	50.4	75.7	114	189	315
400	6.5	34.7	46.3	69.4	104	174	290
425	5.5	28.8	38.4	57.5	86.3	144	240
450	4.6	23.0	30.7	46.0	69.0	115	192
475	3.7	17.1	22.8	34.2	51.3	85.4	142
500	2.8	11.6	15.4	23.2	34.7	57.9	96.5
538	1.4	5.9	7.9	11.8	17.7	29.5	49.2

Read about ASME B16.36 orifice flange dimensions in class 300 to 2500, weight chart, tapping standard of concentric orifice plate

ASME B16.36 Orifice Flange Dimensions

Class 300 Orifice Flange Dimensions

Size In Inches	OD	Thickness	OD Of Hub	OD Of Weld Neck	Welding Neck Length	Diameter Of R/F	R/F Height	Diameter Of Hole	No. Bolts	Hole Sizes	Weight As Per KG
(A)	(C)	(D)	(E)	(F)	(G)	(H)	(I)	-	-	-	-
1	125	36.6	54	33.4	81	50.8	2	6.4	4	3/4	4.5
1 1/2	155	36.6	70	48.3	84	73	2	6.4	4	7/8	6.5
2	165	36.6	84	60.3	84	92.1	2	6.4	8	3/4	7
2 1/2	190	36.6	100	73	87	104.8	2	6.4	8	7/8	7.5
3	210	36.6	117	88.9	87	127	2	9.5	8	7/8	9.4
4	255	36.6	146	114.3	90	157.2	2	12.7	8	7/8	13.2
6	320	36.6	206	168.3	98	215.9	2	12.7	12	7/8	14.6
8	380	39.7	260	219.1	110	269.9	2	12.7	12	1	30
10	445	46.1	321	273	116	323.8	2	12.7	16	1 1/8	41
12	520	49.3	375	323.8	129	381	2	12.7	16	1 1/4	62
14	585	52.4	425	355.6	141	412.8	2	12.7	20	1 1/4	84
16	650	55.6	483	406.4	144	469.9	2	12.7	20	1 3/8	111
18	710	58.8	533	457	157	533.4	2	12.7	24	1 3/8	138
20	775	62	587	508	160	584.2	2	12.7	24	1 3/8	171
24	915	68.3	702	610	167	692.2	2	12.7	24	1 5/8	247

Class 600 Orifice Flange Dimensions

Size In Inches	Size In MM	OD	Thickness	OD Of Hub	OD Of Weld Neck	Welding Neck Length	Diameter Of R/F	R/F Height	PCD	Diameter Of Hole	No. Bolts	Size Of Bolt In UNC	Length Of R/F Stud	Hole Sizes	Size Of Stud In ISO	Weight As Per KG
(A)	(B)	(C)	(D)	(E)	(F)	(G)	(H)	(I)	-	-	-	-	-	-	-	-
1	25	125	36.6	54	33.5	81	50.8	7	88.9	6.4	4	5/8	125	3/4	M16	5.5
1 1/2	40	155	36.6	70	48.3	84	73	7	114.3	6.4	4	3/4	135	7/8	M20	7.8
2	50	165	36.6	84	60.3	84	92.1	7	127	6.4	8	5/8	125	3/4	M16	8.3
2 1/2	65	190	36.6	100	73	87	104.8	7	149.2	6.4	8	3/4	135	7/8	M20	10.8
3	80	210	36.6	117	88.9	87	127	7	168.3	9.5	8	3/4	135	7/8	M20	12.6
4	100	275	38.1	152	114.3	102	157.2	7	215.9	12.7	8	7/8	150	1	M24	19
6	150	355	47.7	222	168.3	117	215.9	7	292.1	12.7	12	1	180	1 1/8	M27	37
8	200	420	55.6	273	219.1	133	269.9	7	349.2	12.7	12	1 1/8	195	1 1/4	M30	53
10	250	510	63.5	343	273	152	323.8	7	431.8	12.7	16	1 1/4	220	1 3/8	M33	86
12	300	560	66.7	400	323.8	156	381	7	489	12.7	20	1 1/4	230	1 3/8	M33	102
14	350	605	69.9	432	355.6	165	412.8	7	527	12.7	20	1 3/8	240	1 1/2	M36	150
16	400	685	76.2	495	406.4	178	469.9	7	603.2	12.7	20	1 1/2	260	1 5/8	M39	190
18	450	745	82.6	546	457.2	184	533.4	7	654	12.7	20	1 5/8	280	1 3/4	M42	240
20	500	815	88.9	610	508	190	584.2	7	723.9	12.7	24	1 5/8	300	1 3/4	M42	295
24	600	940	101.6	718	609.6	203	692.2	7	838.2	12.7	24	1 7/8	335	2	M48	365

Class 900 Orifice Flange Dimensions

Size In Inches	Size In MM	OD	Thickness	OD Of Hub	OD Of Weld Neck	Welding Neck Length	Diameter Of R/F	R/F Height	PCD	Diameter Of Hole	No. Bolts	Size Of Bolt In UNC	Length Of R/F Stud	Hole Sizes	Size Of Stud In ISO	Weight As Per KG
(A)	(B)	(C)	(D)	(E)	(F)	(G)	(H)	(I)	-	-	-	-	-	-	-	-
1	25	150	38.1	52	33.5	83	50.8	7	101.6	6.4	4	7/8	150	1	M24	5.4
1 1/2	40	180	38.1	70	48.3	89	73	7	123.8	6.4	4	1	160	1 1/8	M27	7.8
2	50	215	38.1	105	60.3	102	92.1	7	165.1	6.4	8	7/8	150	1	M30	11.5
2 1/2	65	245	41.3	124	73	105	104.8	7	190.5	6.4	8	1	165	1 1/8	M27	15.8
3	80	240	38.1	127	88.9	102	127	7	190.5	9.5	8	7/8	150	1	M24	22
4	100	290	44.5	159	114.3	114	157.2	7	235	12.7	8	1 1/8	180	1 1/4	M30	22
6	150	380	55.6	235	168.3	140	215.9	7	317.5	12.7	12	1 1/8	195	1 1/4	M30	70
8	200	470	63.5	298	219.1	162	269.9	7	393.7	12.7	12	1 3/8	230	1 1/2	M36	119
10	250	545	69.9	368	273	184	323.8	7	469.9	12.7	16	1 3/8	240	1 1/2	M36	204
12	300	610	79.4	419	323.8	200	381	7	533.4	12.7	20	1 3/8	260	1 1/2	M36	303
14	350	640	85.8	451	355.6	213	412.8	7	558.8	12.7	20	1 1/2	280	1 5/8	M39	400
16	400	705	88.9	508	406.4	216	469.9	7	616	12.7	20	1 5/8	290	1 3/4	M42	510
18	450	785	101.9	565	457.2	229	533.4	7	685.8	12.7	20	1 7/8	330	2	M48	738
20	500	855	108	622	508	248	584.2	7	749.3	12.7	20	2	355	2 1/8	M52	932
24	600	1040	139.7	749	609.6	292	692.2	7	901.7	12.7	20	2 1/2	445	2 5/8	M64	1511

Class 1500 Orifice Flange Dimensions

Size In Inches	Size In MM	OD	Thickness	OD Of Hub	OD Of Weld Neck	Welding Neck Length	Diameter Of R/F	R/F Height	PCD	Diameter Of Hole	No. Bolts	Size Of Bolt In UNC	Length Of R/F Stud	Hole Sizes	Size Of Stud In ISO	Weight As Per KG
(A)	(B)	(C)	(D)	(E)	(F)	(G)	(H)	(I)	-	-	-	-	-	-	-	-
1	25	150	38.1	52	33.5	83	50.8	7	101.6	6.4	4	7/8	150	1	M24	5.4
1 1/2	40	180	38.1	70	48.3	89	73	7	123.8	6.4	4	1	160	1 1/8	M27	7.8
2	50	215	38.1	105	60.3	102	92.1	7	165.1	6.4	8	7/8	150	1	M24	11.5
2 1/2	65	245	41.3	124	73	105	104.8	7	190.5	6.4	8	1	165	1 1/8	M27	15.8
3	80	265	47.7	133	88.9	117	127	7	203.2	9.5	8	1 1/8	185	1 1/4	M30	22
4	100	310	54	162	114.3	124	157.2	7	241.3	12.7	8	1 1/4	205	1 3/8	M33	22
6	150	395	82.6	229	168.3	171	215.9	7	317.5	12.7	12	1 3/8	265	1 1/2	M36	70
8	200	485	92.1	292	219.1	213	269.9	7	393.7	12.7	12	1 5/8	300	1 3/4	M42	119
10	250	585	108	368	273	254	323.8	7	482.6	12.7	12	1 7/8	345	1	M48	204
12	300	675	123.9	451	323.8	283	381	7	571.5	12.7	16	2	380	2 1/8	M52	303
14	350	750	133.4	495	355.6	298	412.8	7	635	12.7	16	2 1/4	415	2 3/8	M56	400
16	400	825	146.1	552	406.4	311	469.9	7	704.8	12.7	16	2 1/2	450	2 5/8	M64	510
18	450	915	162	597	457.2	327	533.4	7	774.7	12.7	16	2 3/4	500	2 7/8	M72	738
20	500	985	177.8	641	508	356	584.2	7	831.8	12.7	16	3	545	3 1/8	M76	932
24	600	1170	203.2	762	609.6	406	692.2	7	990.6	12.7	16	3 1/2	620	3 5/8	M90	1511

Class 2500 Orifice Flange Dimensions

Size In Inches	Size In MM	OD	Thickness	OD Of Hub	OD Of Weld Neck	Welding Neck Length	Diameter Of R/F	R/F Height	PCD	Diameter Of Hole	No. Bolts	Size Of Bolt In UNC	Length Of R/F Stud	Hole Sizes	Size Of Stud In ISO	Weight As Per KG
(A)	(B)	(C)	(D)	(E)	(F)	(G)	(H)	(I)	-	-	-	-	-	-	-	-
1	25	160	38.1	57	33.5	92	50.8	7	108	6.4	4	7/8	150	1	M24	6.5
1 1/2	40	205	44.5	79	48.3	111	73	7	146	6.4	4	1 1/8	180	1 1/4	M30	13
2	50	235	50.8	95	60.3	127	92.1	7	171.4	6.4	8	1	185	1 1/8	M27	19
2 1/2	65	265	57.2	114	73	143	104.8	7	196.8	6.4	8	1 1/8	205	1 1/4	M30	24
3	80	305	66.7	133	88.9	168	127	7	228.6	9.5	8	1 1/4	230	1 3/8	M33	43
4	100	355	76.2	165	114.3	190	157.2	7	273	12.7	8	1 1/2	260	1 5/8	M39	66
6	150	485	108	235	168.3	273	215.9	7	368.3	12.7	8	2	350	2 1/8	M52	172
8	200	550	127	305	219.1	318	269.9	7	438.2	12.7	12	2	385	2 1/8	M52	261
10	250	675	165.1	375	273	419	323.8	7	539.8	12.7	12	2 1/2	490	2 5/8	M64	485
12	300	760	184.2	441	323.8	464	381	7	619.1	12.7	12	2 3/4	540	2 7/8	M72	730

Class 300 To 2500 Orifice Flange Bolt Chart

Bolt Chart Of Class 300 Orifice Flanges

Normal Pipe Size	BC	Bolts No.	Diameter Of Holes	Stud Bolts Dia.	Length Of Stub Bolts
1	88.9	4	11/16	5/8	125
1½	114.3	4	13/16	3/4	135
2	127.0	8	11/16	5/8	125
2½	149.2	8	13/16	3/4	135
3	168.3	8	13/16	3/4	135
4	200.0	8	13/16	3/4	135
6	269.9	12	7/8	3/4	135
8	330.2	12	1	7/8	145
10	387.4	16	1.1/8	1	165
12	450.8	16	1¼	1.1/8	180
14	514.4	20	1¼	1.1/8	185
16	571.5	20	1.3/8	1¼	195
18	628.6	24	1.3/8	1¼	205
20	685.8	24	1.3/8	1¼	215
24	812.8	24	1.5/8	1½	240

Bolt Chart Of Class 600 Orifice Flanges

Normal Pipe Size	BC	Bolts No.	Diameter Of Holes	Stud Bolts Dia.	Length Of Stub Bolts
1	88.9	4	11/16	5/8	125
1½	114.3	4	13/16	3/4	135
2	127.0	8	11/16	5/8	125
2½	149.2	8	13/16	3/4	135
3	168.3	8	13/16	3/4	135
4	215.9	8	1	7/8	150
6	292.1	12	1.1/8	1	180
8	349.2	12	1¼	1.1/8	195
10	431.8	16	1.3/8	1¼	220
12	489.0	20	1.3/8	1¼	230
14	527.0	20	1½	1.3/8	240
16	603.2	20	1.5/8	1½	260
18	654.0	20	1¾	1.5/8	280
20	723.9	24	1¾	1.5/8	300
24	838.2	24	2	1.7/8	335

Bolt Chart Of Class 900 Orifice Flanges

Normal Pipe Size	BC	Bolts No.	Diameter Of Holes	Stud Bolts Dia.	Length Of Stub Bolts
1	88.9	4	11/16	5/8	125
1½	114.3	4	13/16	3/4	135
2	127.0	8	11/16	5/8	125
2½	149.2	8	13/16	3/4	135
3	190.5	8	1	7/8	150
4	235.0	8	1¼	1.1/8	180
6	317.5	12	1¼	1.1/8	195
8	393.7	12	1½	1.3/8	230
10	469.9	16	1½	1.3/8	240
12	533.4	20	1½	1.3/8	260
14	558.8	20	1.5/8	1½	280
16	616.0	20	1¾	1.5/8	290
18	685.8	20	2	1.7/8	330
20	749.3	20	2.1/8	2	355
24	901.7	20	2 5/8	2½	445

Bolt Chart Of Class 1500 Orifice Flanges

Normal Pipe Size	BC	Bolts No.	Diameter Of Holes	Stud Bolts Dia.	Length Of Stub Bolts
1	101.6	4	1	7/8	150
1½	123.8	4	1.1/8	1	160
2	165.1	8	1	7/8	150
2½	190.5	8	1.1/8	1	165
3	203.2	8	1¼	1.1/8	185
4	241.3	8	1.3/8	1¼	205
6	317.5	12	1½	1.3/8	265
8	393.7	12	1¾	1.5/8	300
10	482.6	12	2	1.7/8	345
12	571.6	16	2.1/8	2	380
14	635.0	16	2 3/8	2¼	415
16	704.8	16	2 5/8	2½	450
18	774.7	16	2 7/8	2¾	500
20	831.8	16	3.1/8	3	545
24	990.6	16	3.5/8	3½	620

Bolt Chart Of Class 2500 Orifice Flanges

Normal Pipe Size	BC	Bolts No.	Diameter Of Holes	Stud Bolts Dia.	Length Of Stub Bolts
1	108.0	4	1	7/8	150
1½	146.0	4	1¼	1.1/8	180
2	171.4	8	1.1/8	1	185
2½	196.8	8	1¼	1.1/8	205
3	228.6	8	1.3/8	1¼	230
4	273.0	8	1.5/8	1½	260
6	368.3	8	2.1/8	2	350
8	438.2	12	2.1/8	2	385
10	539.8	12	2 5/8	2½	490
12	619.1	12	2 7/8	2¾	540

Orifice Plate Tolerances

D1 & D2 = ± 1%	D3 = ± 1 (mm)	D4 = 0/-0.4 (mm)	L = ± 0.1 (mm)	P = ± 0.1 (mm)	S = ± 0.1 (mm)

Types Of Tapping In Orifice Plate

Benefits

Flanges Taps.
Pipe Taps.
Full flow Taps
Corner Taps.
Elbow Taps.

Can an orifice plate flange be used for both liquid and gas flow measurements?

Yes, an orifice plate flange can be used for both liquid and gas flow measurements. The design and configuration along with appropriate calculations can help with it. However, proper selection of the plate design, size and specifications is required. They should be based on the properties of the fluid/gas being measured to ensure accurate and reliable results.

What is the purpose of the tapped holes or studs on an weld neck orifice flange?

The purpose of the tapped holes or studs on a weld neck orifice flange is to securely fasten the plate to it. The plate is positioned between the weld neck restriction orifice flange and the raised face. The holes or studs allow for precise alignment and attachment of the plate. This will ensure the plate remains in the correct position.

How does the choice of bolts material affect the pressure rating capacity of a ASME B16.36 orifice flange?

The choice of bolt material for an ASME B16.36 orifice flange can impact its pressure rating capacity. The bolts should possess sufficient strength and corrosion resistance to withstand the operating conditions and pressure requirements. The selection of appropriate bolt material should align with the desired pressure rating and ensure the integrity & reliability of the flange in a given application.