AWWA C207 Flange

View ANSI/ Plate style AWWA C207 Class D Flange and AWWA C228 Class E/ F Flanges dimensions and weight

What is AWWA C207 Flange?
The AWWA C207 is the “American National Standard for steel pipe flanges for waterworks service”. They are available within the size range of 4” to 144”. The AWWA is basically the abbreviation for “American Water Works Association” and is associated with all the major equipment required in the water utility services. The given standard basically have two types of flanges generally, they are: the ring-type slip-on flanges also known as the plate flanges, and the blind flanges. Both the flanges do not come with a hub and are made up of steel. Depending on its working pressure limits, the AWWA C207 Flange is divided into four pressure classes and they can be pressure rated upto 300 psi.
The AWWA C207 Flanges are primarily used in wastewater, slurry, plant piping and waterworks industries. They are available in different faces and can be used according to individual requirements. They are either forged, machined or heat treated to be manufactured.

What Is AWWA Standards?
The AWWA standards date back to around 100 years, and it was built to set a voluntary standard of minimum requirements when it comes to material, equipment, and practices related to water treatment supply. They are used by thousands of facilities, manufacturers, and distributors, throughout the world to ensure that the restaurant products have superior quality, and they are capable of giving the best performances.

What are awwa c207 flange classes?
The awwa c207 flanges are divided into four classes according to their limit of working pressure:

• Class B - 86 psi
• Class D- 150-175 psi
• Class E- 275 psi
• Class F- 300 psi

The pressure limits are for custom conditions and temperatures in various water utility services.

AWWA C110 and C153 Flange?
The AWWA C110 are ductile iron and gray iron flanges that are used with the ductile iron pipe for potable water. They are ideally used within the temperature range of 0.6 degrees C to 49 degrees C. Both the C110 and C153 are the full body specification for cast iron flanges. They both are basically made of ductile iron and come with enhanced strength and toughness. They have the same structural capabilities with a thin wall and small body. These flanges are popular for their light weight, and ease of handling. They also come with a short laying length. One can get mechanical joints for both the C110 and C153 flanges, however the flanged ends are only available for the C110 specifications.
In recent times, the compact C153 flanges are more popular compared to the full body C110 flanges. The former is more lightweight, economical, and it is known for providing much better flow characteristics.

AWWA C207 Blind Vs AWWA C207 Class D Hub Flange
The AWWA C207 Blind Flange is a steel plate with no central hub and bolted nuts through its perimeter. They are mostly placed between two flanges to stop the flow of the pipe run. They are very helpful at the time of maintenance or repair works inside the pipe.
The AWWA C207 Class D Hub Flanges are the most popular ones of the given specifications and they carry a pressure rating of around 175 psi. Their sizes fall below 12 inches. They have a central hub and help in joining the pipelines in a safe and secure way to promote proper flow in the pipeline.

AWWA C207 Flange

IBR Manufacturer of AWWA C207 Class B Ring Flange and AWWA C228 Class SD Hub Flange since 2014

Table of Content

• AWWA C207 Flange Specification List
• Awwa Flange Pressure Ratings
• Awwa Flange Weight Chart
• Price List of AWWA C207 Flange
• AWWA C207-07 Ring Type Flange Dimensions
• Dimesions of AWWA C207 Class D Hub Flange
• AWWA C207 Class E Hub Flanges Dimesions
• Various Types of AWWA C207 Flange

• Awwa Class B Flange Dimensions
• Awwa Class F Flange Dimensions
• Awwa Flange Tolerances
• Awwa Class D Flanges Thickness
• American Water Works Association Pipe Flanges Standard
• Awwa Plate Flange Torque Specs
• Awwa Class D Ring Flange Dimensions

AWWA C207 Flange Specification List

Dimensions	AWWA C207
Size	1/2" to 48"
AWWA	Class B / Class D / Class E / Class F
Class	300 LBS, 150 LBS, 900 LBS, 600 LBS, 1500 LBS, 2500 LBS
Flanges Face Type Provided By Manufacturer	RF (Raised Face), RTJ (Ring Type Joint)
Value Added Services	CNC Machining, Customised Flange
Making Methods Provided By Manufacturer	Casting And Forging Rolling And Cutting
Outer diameters	1/2” to 24”
Flanges Test	Hydrostatic testing machine/ UI trasonic flaw detector/ X-ray detector/ Direct-reading Spectrograph/ Magnetic particle detector
Coating/Surface Treatment By Manufacturer	Antirust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
Standards Provided By Manufacturer	EN-1092, DIN, API7S-43, API605, B16.48, ISO70051, MSS S44, ANSI/ASME B16.5, B16.47 Series A & B, BS4504, BS 10, API7S-15, JISB2220, BS1560-3.1, ASME/ANSI B16.5/16.36/16.47A/16.47B, EN1092
Flanges Equipment	Pushing Machine/ electric bevelling machine/ Press machine/ Bending machine/ Sand-blasting machine etc

We are leading AWWA Flanges wholesalers, exporters, dealers, supplier, distributor, importer, stockholders, stockists and Manufacturer in Mumbai

Awwa Flange Pressure Ratings

Pressure ratings for AWWA flanges range from 86 psi for Class B flanges to 300 psi for Class F flanges. Class D flanges, which have a pressure rating of 175 psi for sizes less than 12" and 150 psi for those 12" and higher, are by far the most typically requested among AWWA flanges users.

Awwa Flange Weight Chart

NPS	Mass
4"	3.51
5"	3.90
6"	4.85
8"	6.96
10"	8.73
12"	15.02
14"	21.27
16"	27.27
18"	28.88
20"	36.07
22"	40.81
24"	50.65

Price List of AWWA C207 Flange

AWWA C207 Flanges Price Per Piece in India	American Water Works Association C207 Class D Flanges Price in INR	AWWA C228 Class E Flanges Price in UAE Dirham	American Water Works Association C207 Class B Ring Flanges Price in USD
FLANGES STAINLESS STEEL SA 182 GR.F304 AWWA C207 CLASS D DN1000 SOFF Per Kg	416	UAE Dirham 20.48	$5.58
FLANGE HUB A105 30 CL 150 American Water Works Association C207 CL D Per Kg	195	UAE Dirham 9.60	$2.61

Compare our price with other AWWA C207 Flange manufacturer in India. This is an approximate Price of AWWA C207 Class E Ring Flange in India.

Supply AWWA C207 Class E Ring Flange with Pneumatic, Hydrotest, NDT Test to confirm the integrity of weldments

AWWA C207-07 Ring Type Flange Dimensions

Nom. size	Outside Ø (OD)	Slip-on Bore (ID)	No. of Bolt Holes	Ø of Holes	Ø Bolt Circle (BC)	Thickness (T)		Weight (lbs)
						Slip-on	Blind	Slip-on	Blind
2	6.00	2.44	4	0.750	4.75	0.625	0.625	3.90	4.7
2.5	7.00	2.94	4	0.750	5.50	0.625	0.625	5.30	6.5
3	7.50	3.57	4	0.750	6.00	0.625	0.625	5.70	7.5
4	9.00	4.57	8	0.750	7.50	0.625	0.625	7.70	10.6
5	10.00	5.66	8	0.875	8.50	0.625	0.650	8.80	13.6
6	11.00	6.72	8	0.875	9.50	0.688	0.693	10.70	17.7
8	13.50	8.72	8	0.875	11.75	0.688	0.812	15.30	31.8
10	16.00	10.88	12	1.000	14.25	0.688	0.953	19.20	51.7
12	19.00	12.88	12	1.000	17.00	0.812	1.117	33.10	86.7
14	21.00	14.19	12	1.125	18.75	0.938	1.133	46.90	107.4
16	23.50	16.19	16	1.125	21.25	1.000	1.265	60.10	149.8
18	25.00	18.19	16	1.250	22.75	1.062	1.331	63.60	177.7
20	27.50	20.19	20	1.250	25.00	1.125	1.448	79.40	233.6
22	29.50	22.19	20	1.375	27.25	1.188	1.568	89.90	290.5
24	32.00	24.19	20	1.375	29.50	1.250	1.661	113.40	364.5
26	34.25	26.25	24	1.375	31.75	1.312	1.786	128.00	448.2
28	36.50	28.25	28	1.375	34.00	1.312	1.906	140.50	542.6
30	38.75	30.25	28	1.375	36.00	1.375	2.008	163.30	647.3
32	41.75	32.25	28	1.625	38.50	1.500	2.150	210.10	798.6
34	43.75	34.25	32	1.625	40.50	1.500	2.252	219.10	916.9
36	46.00	36.25	32	1.625	42.75	1.625	2.370	259.40	1071.4
38	48.75	38.25	32	1.625	45.25	1.625	2.506	299.80	1278.2
40	50.75	40.25	36	1.625	47.25	1.625	2.609	311.10	1440.1
42	53.00	42.25	36	1.625	49.50	1.750	2.729	361.70	1648.1
44	55.25	44.25	40	1.625	51.75	1.750	2.849	385.00	1868.3
48	59.50	48.25	44	1.625	56.00	1.875	3.072	457.30	2340.7
54	66.25	54.25	44	1.875	62.75	2.125	3.435	610.60	3236.7
60	73.00	60.25	52	1.875	69.25	2.250	3.779	759.10	4327.6
66	80.00	66.25	52	1.875	76.00	2.500	4.136	1017.00	5722.2
72	86.50	72.25	60	1.875	82.50	2.625	4.480	1198.20	7249.0
78	93.00	78.25	64	2.125	89.00	2.750	-	1368.90	-
84	99.75	84.25	64	2.125	95.50	2.875	-	1639.70	-
90	106.50	90.25	68	2.438	102.00	3.000	-	1878.30	-
96	113.25	96.25	68	2.438	108.50	3.250	-	2298.30	-
102	120.00	102.25	72	2.688	114.50	3.250	-	2494.20	-
108	126.75	108.25	72	2.688	120.75	3.375	-	2892.50	-
120	140.25	120.25	76	2.938	132.75	3.500	-	3568.50	-
132	153.75	132.25	80	3.188	145.75	3.875	-	4628.60	-
144	167.25	144.25	84	3.438	158.25	4.125	-	5698.20	-

Dimesions of AWWA C207 Class D Hub Flange

NPS	DN	OD, A	ID, B	Number of Bolts	Diam.of Bolt Circle, C	Diam.of Bolt	T	L	E
4	100	228.60	116.08	8	190.50	15.88	12.70	22.23	134.92
5	125	254.00	143.76	8	215.90	19.05	14.27	31.75	160.32
6	150	279.40	170.69	8	241.30	19.05	14.27	31.75	192.07
8	200	342.90	221.49	8	298.45	19.05	14.27	31.75	246.08
10	250	406.40	276.35	12	361.95	22.23	17.48	31.75	304.80
12	300	482.60	327.15	12	431.80	22.23	17.48	31.75	365.13
14	350	533.40	360.43	12	476.25	25.40	19.05	31.75	400.05
16	400	596.90	411.23	16	539.75	25.40	19.05	31.75	457.20
18	450	635.00	462.03	16	577.85	28.58	19.05	31.75	504.83
20	500	698.50	512.83	20	635.00	28.58	19.05	31.75	558.80
22	550	749.30	563.63	20	692.15	31.75	25.40	44.45	615.95
24	600	812.80	614.43	20	749.30	31.75	25.40	44.45	663.58
26	650	869.95	665.23	24	806.45	31.75	25.40	44.45	723.90
28	700	927.10	716.03	28	863.60	31.75	25.40	44.45	774.70
30	750	984.25	766.83	28	914.40	31.75	25.40	44.45	825.50
32	800	1060.45	817.63	28	977.90	38.10	28.58	44.45	882.65
34	850	1111.25	868.43	32	1028.70	38.10	28.58	44.45	933.45
36	900	1168.40	919.23	32	1085.85	38.10	28.58	44.45	984.25
38	950	1238.25	970.03	32	1149.35	38.10	28.58	44.45	1035.05
40	1000	1289.05	1020.83	36	1200.15	38.10	28.58	44.45	1092.20
42	1050	1346.20	1071.63	36	1257.30	38.10	31.75	44.45	1143.00
44	1100	1403.35	1122.43	40	1314.45	38.10	31.75	57.15	1193.80
46	1150	1454.15	1173.23	40	1365.25	38.10	31.75	57.15	1244.60
48	1200	1511.30	1224.03	44	1422.40	38.10	34.93	63.50	1295.40
50	1250	1568.45	1274.83	44	1479.55	44.45	34.93	63.50	1346.20
52	1300	1625.60	1325.63	44	1536.70	44.45	34.93	63.50	1397.00
54	1350	1682.75	1376.43	44	1593.85	44.45	34.93	63.50	1447.80
60	1500	1854.20	1528.83	52	1758.95	44.45	38.10	69.85	1600.20
66	1650	2032.00	1681.23	52	1930.40	44.45	38.10	69.85	1752.60
72	1800	2197.10	1833.63	60	2095.50	44.45	38.10	69.85	1905.00
78	1950	2362.20	1986.03	64	2260.60	50.80	44.45	76.20	2063.75
84	2100	2533.65	2138.43	64	2425.70	50.80	44.45	76.20	2222.50
90	2250	2705.10	2290.83	68	2590.80	57.15	50.80	82.55	2381.25
96	2400	2876.55	2443.23	68	2755.90	57.15	50.80	82.55	2540.00

AWWA C207 Class E Hub Flanges Dimesions

NPS	DN	OD, A	ID, B	Number of Bolts	Diam.of Bolt Circle, C	Diam.of Bolt	T	L	E
4	100	228.60	116.08	8	190.50	15.88	23.83	33.32	134.92
5	125	254.00	143.76	8	215.90	19.05	23.83	36.53	163.53
6	150	279.40	170.69	8	241.30	19.05	25.40	39.67	192.07
8	200	342.90	221.49	8	298.45	19.05	28.58	44.45	246.08
10	250	406.40	276.35	12	361.95	22.23	30.18	49.23	304.80
12	300	482.60	327.15	12	431.80	22.23	31.75	55.58	365.13
14	350	533.40	360.43	12	476.25	25.40	34.93	57.15	400.05
16	400	596.90	411.23	16	539.75	25.40	36.53	63.50	457.20
18	450	635.00	462.03	16	577.85	28.58	39.67	68.28	504.83
20	500	698.50	512.83	20	635.00	28.58	42.88	73.03	558.80
22	550	749.30	563.63	20	692.15	31.75	46.02	79.38	609.60
24	600	812.80	614.43	20	749.30	31.75	48.20	82.55	663.58
26	650	869.95	665.23	24	806.45	31.75	50.80	85.73	723.90
28	700	927.10	716.03	28	863.60	31.75	52.37	87.33	781.05
30	750	984.25	766.83	28	914.40	31.75	53.98	88.90	831.85
32	800	1060.45	817.63	28	977.90	38.10	57.15	92.08	889.00
34	850	1111.25	868.43	32	1028.70	38.10	58.72	93.68	939.80
36	900	1168.40	919.23	32	1085.85	38.10	60.33	95.25	996.95
38	950	1238.25	970.03	32	1149.35	38.10	60.33	95.25	1060.45
40	1000	1289.05	1020.83	36	1200.15	38.10	63.50	98.43	1111.25
42	1050	1346.20	1071.63	36	1257.30	38.10	66.68	101.60	1168.40
44	1100	1403.35	1122.43	40	1314.45	38.10	66.68	101.60	1219.20
46	1150	1454.15	1173.23	40	1365.25	38.10	68.28	103.17	1270.00
48	1200	1511.30	1224.03	44	1422.40	38.10	69.85	104.78	1327.15
50	1250	1568.45	1274.83	44	1479.55	44.45	69.85	104.78	1377.95
52	1300	1625.60	1325.63	44	1536.70	44.45	73.03	107.95	1435.10
54	1350	1682.75	1376.43	44	1593.85	44.45	76.20	111.13	1492.25
60	1500	1854.20	1528.83	52	1758.95	44.45	79.38	114.30	1657.35
66	1650	2032.00	1681.23	52	1930.40	44.45	85.73	123.83	1816.10
72	1800	2197.10	1833.63	60	2095.50	44.45	88.90	127.00	1993.90
78	1950	2362.20	1986.03	64	2260.60	50.80	98.43	136.53	2146.30
84	2100	2533.65	2138.43	64	2425.70	50.80	98.43	136.53	2298.70
90	2250	2705.10	2290.83	68	2590.80	57.15	107.95	146.05	2457.45
96	2400	2876.55	2443.23	68	2755.90	57.15	107.95	146.05	2609.85

Buy flat/ raised face AWWA C207 Class F Flange at Unbeatable Prices in Asia, get a sample before buying

Various Types of AWWA C207 Flange

AWWA C207 Class E Hub Flange

AWWA C207 Class 125 LW CL B Flange

AWWA C207 Class D Hub Flange

AWWA C207 Flange

AWWA C207 Class 125 LW CL D Flange

AWWA C207 Class 125 LW FLANGE

AWWA C207 Class E Ring Flange

AWWA C207 Class F Ring Flange

AWWA C228 Flange

AWWA C207 Class B Ring Flange

AWWA C207 Class D Ring Flange

AWWA C207 Class F Flange

AWWA C207 Class E Flange

AWWA Flanges

AWWA C228 Class SD Flange

AWWA C207 Class 125 LW CL E Flange

AWWA C207 Class B Flange

AWWA C207 Class D Flange

Awwa Class B Flange Dimensions

NPS	DN	OD, A	ID, B	Number of Bolts	Diam.of Bolt Circle, C	Diam.of Bolt	Thickness of Flanges, T	Thickness of Blind, T
4	100	228.60	116.08	8	190.50	15.88	15.88	15.88
5	125	254.00	143.76	8	215.90	19.05	15.88	15.88
6	150	279.40	170.69	8	241.30	19.05	17.48	17.48
8	200	342.90	221.49	8	298.45	19.05	17.48	17.48
10	250	406.40	276.35	12	361.95	22.23	17.48	17.48
12	300	482.60	327.15	12	431.80	22.23	17.48	18.26
14	350	533.40	360.43	12	476.25	25.40	17.48	20.1
16	400	596.90	411.23	16	539.75	25.40	17.48	22.66
18	450	635.00	462.03	16	577.85	28.58	17.48	24.13
20	500	698.50	512.83	20	635.00	28.58	17.48	26.42
22	550	749.30	563.63	20	692.15	31.75	19.05	28.74
24	600	812.80	614.43	20	749.30	31.75	19.05	30.89
26	650	869.95		24	806.45	31.75	20.62	33.2
28	700	927.10		28	863.60	31.75	22.23	35.5
30	750	984.25		28	914.40	31.75	22.23	37.53
32	800	1060.45		28	977.90	38.10	23.83	40.16
34	850	1111.25		32	1028.70	38.10	23.83	42.19
36	900	1168.40		32	1085.85	38.10	25.40	44.48
38	950	1238.25		32	1149.35	38.10	25.40	47.06
40	1000	1289.05		36	1200.15	38.10	25.40	49.09
42	1050	1346.20		36	1257.30	38.10	28.58	51.4
44	1100	1403.35		40	1314.45	38.10	28.58	53.7
46	1150	1454.15		40	1365.25	38.10	28.58	55.73
48	1200	1511.30		44	1422.40	38.10	31.75	58.03
50	1250	1568.45		44	1479.55	44.45	31.75	60.38
52	1300	1625.60		44	1536.70	44.45	31.75	62.69
54	1350	1682.75		44	1593.85	44.45	34.93	64.99
60	1500	1854.20		52	1758.95	44.45	38.10	71.63
66	1650	2032.00		52	1930.40	44.45	41.28	78.53
72	1800	2197.10		60	2095.50	44.45	44.45	85.17
78	1950	2362.20		64	2260.60	50.80	50.80
84	2100	2533.65		64	2425.70	50.80	50.80
90	2250	2705.10		68	2590.80	57.15	57.15
96	2400	2876.55		68	2755.90	57.15	57.15
102	2550	3048.00		72	2908.30	63.50	63.50
108	2700	3219.45		72	3067.05	63.50	63.50
114	2850	3390.90		76	3219.45	69.85	69.85
120	3000	3562.35		76	3371.85	69.85	69.85
126	3150	3733.80		80	3536.95	76.20	76.20
132	3300	3905.25		80	3702.05	76.20	76.20
144	3600	4248.15		84	4019.55	82.55	82.55

Awwa Class F Flange Dimensions

NPS	DN	OD, A	ID, B	Number of Bolts	Diam.of Bolt Circle, C	Diam.of Bolt	Thickness of Flanges, T	Thickness of Blind, T
4	100	254.00	116.08	8	200.15	19.05	28.70	28.7
5	125	279.40	143.76	8	234.95	19.05	30.73	30.73
6	150	317.50	170.94	12	269.75	19.05	33.27	33.27
8	200	381.00	221.74	12	330.20	22.23	33.27	33.27
10	250	444.50	276.35	16	387.35	25.40	38.10	38.1
12	300	520.70	327.15	16	450.85	28.58	41.40	41.4
14	350	584.20	360.43	20	514.35	28.58	49.28	49.28
16	400	647.70	411.23	20	571.50	31.75	54.36	54.36
18	450	711.20	462.03	24	628.65	31.75	57.15	57.125
20	500	774.70	512.83	24	685.80	31.75	59.18	59.18
22	550	838.20	563.63	24	742.95	31.75	63.50	63.5
24	600	914.40	614.43	24	812.80	38.10	68.33	68.53
26	650	971.55		28	876.30	44.45	76.20	76.2
28	700	1035.05		28	939.80	44.45	79.50	79.5
30	750	1092.20		28	996.95	44.45	80.01	80.42
32	800	1149.35		28	1054.10	44.45	82.55	84.62
34	850	1206.50		28	1104.90	44.45	85.85	88.25
36	900	1270.00		32	1168.40	50.80	87.88	93.25
38	950	1327.15		32	1219.20	50.80	88.90	96.9
40	1000	1377.95		36	1276.35	50.80	92.20	101.4
42	1050	1447.80		36	1339.85	50.80	96.77	105.92
44	1100	1504.95		36	1397.00	50.80	101.60	110.19
46	1150	1562.10		40	1454.15	50.80	104.90	114.43
48	1200	1651.00		40	1543.05	50.80	114.30	121.44

Awwa Flange Tolerances

• Bolt Circle Diameter : +/- 1/16 in
• Bolt Hole Spacing : +/- 1/32 in
• Inside Diameter : + 1/16 - 0 in
• Outside Diameter: +/- 1/8 in
• Thickness (20 and up in) : +3/16 to 0 in
• Thickness (Up to 18 in): + 1/8 to 0 in

Awwa Class D Flanges Thickness

NPS	"A" (OUTSIDE DAIMETER)	"B" (Thickness.)	"C" (RF Dia.)	"D" (B.C.D.)	# Bolt Holes	Diameter of Bolt Holes	Appr. Weight
1/2"	3-1/2	7/16	1-3/8	2-3/8	4	5/8	2
3/4"	3-7/8	1/2	1-11/16	2-3/4	4	5/8	2
1"	4-1/4	9/16	2	3-1/8	4	5/8	2
1-1/4"	4-5/8	5/8	2-1/2	3-1/2	4	5/8	3
1-1/2"	5	11/16	2-7/8	3-7/8	4	5/8	3
2"	6	3/4	3-5/8	4-3/4	4	3/4	4
2-1/2"	7	7/8	4-1/8	5-1/2	4	3/4	7
3"	7-1/2	15/16	5	6	4	3/4	9
3-1/2"	8-1/2	15/16	5-1/2	7	8	3/4	13
4"	9	15/16	6-3/16	7-1/2	8	3/4	17
5"	10	15/16	7-5/16	8-1/2	8	7/8	20
6"	11	1	8-1/2	9-1/2	8	7/8	27
8"	13-1/2	1-1/8	10-5/8	11-3/4	8	7/8	47
10"	16	1-3/16	12-3/4	14-1/4	12	1	67
12"	19	1-1/4	15	17	12	1	123
14"	21	1-3/8	16-1/4	18-3/4	12	1-1/8	139
16"	23-1/2	1-7/16	18-1/2	21-1/4	16	1-1/8	187
18"	25	1-9/16	21	22-3/4	16	1-1/4	217
20"	27-1/2	1-11/16	23	25	20	1-1/4	283
24"	32	1-7/8	27-1/4	29-1/2	20	1-3/8	415

Check AWWA Flange ratings and Class 125 LW CL B, D, E Hub Flange pressure temperature ratings & price in Mumbai

American Water Works Association Pipe Flanges Standard

Standard Number	Size Of	PN Class	Type	Material Grade
American Water Works Association C207	4"–144"	Class B,D,E,F T/1	PL	A105,A181 A36, A516Gr.60,65,70

Awwa Plate Flange Torque Specs

Normal Pipe Size (inch.)	Pressure1 (psi)	Gasket Weight Table (lbs.)	Approx. Bolt Torque2 (ft-lbs)
4	350	0.3	100
6	350	0.4	150
8	350	0.5	150
10	350	0.8	200
12	350	1.0	200
14	350	1.1	250
16	350	1.3	250
18	350	1.3	300
20	350	1.5	300
24	350	1.8	400
30	250	2.4	400
36	250	2.7	500
42	250	4.6	500
48	250	5.8	500
54	250	6.8	600
60	250	8.0	600
643	250	12.5	600

Awwa Class D Ring Flange Dimensions

NPS	A	B	T
4"	9.00	4.57	0.625
5"	10.00	5.66	0.625
6"	11.00	6.72	0.688
8"	13.50	8.72	0.688
10"	16.00	10.88	0.688
12"	19.00	12.88	0.812
14"	21.00	14.19	0.938
16"	23.50	16.19	1.000
18"	25.00	18.19	1.062
20"	27.50	20.19	1.125
22"	29.50	22.19	1.188
24"	32.00	24.19	1.250