Technical/Engineering Data C10

Engineering Data For C10 Butterfly Valve

C10 Coefficient Of Flow

CV of Valve Opening

Valve Size	20º	30º	40º	50º	60º	70º	80º	90º
2″	1	8	18	30	43	73	117	159
3″	3	16	38	75	132	195	296	429
4″	9	43	82	150	241	377	615	884
6″	21	95	186	338	541	872	1340	1800
8″	38	165	330	601	963	1550	2460	3400
10″	59	258	515	938	1500	2420	3850	5830
12″	86	371	741	1350	2170	3490	5540	7960
14″	105	452	900	1650	2640	4250	6750	10200
16″	139	599	1200	2180	3500	5630	8940	12900
18″	178	766	1530	2790	4480	7200	11400	17300
20″	221	954	1910	3480	5570	8970	14200	21600
24″	344	1480	2970	5400	8660	13900	22100	31800
30″	520	2240	4480	8170	13100	21000	33500	50700
36″	786	3390	6760	12365	19820	31730	50780	80850

C10 TORQUES & WEIGHTS

All weights shown in pounds

Valve Size	Actual Torque Inch Pounds*	Valve Weight Less Operator Lug Body	Valve Weight Less Operator Wafer Body	Gear Operator Weight	Handlever Operator Weight
2″	100	7.5	6	12	4
3″	220	16	13	12	7
4″	390	20	16	23	7
6″	726	30	25	23	9
8″	1162	65	59	27	9
10″	2473	116	84	40	10
12″	4550	176	122	40	10
14″	5916	213	201	87	–
16″	7900	252	235	87	–
18″	10004	338	304	87	–
20″	14740	429	393	101	–
24″	21600	603	563	101	–
30″	22200	1006	910	133	–
36″	51000	1772	1601	265	–

* Torque specifications are based on optimum test conditions. Actual torques may vary under different field and environmental applications. For actuator sizing multiply torques by 1.5.

C10 Dimensions

C10 Dimension Table

Valve Size	A	B	C	D	E	F	G	H	J	K	L	M (LUG)	N	P	R (Wafer)	R (Lug)	S
2″	2.09	3.50	1.63	3.25	1.60	0.500	4.75	2.203	1.50	1.64	10-32 ON 1.125 BC	5/8-11 4 PLCS ON 4.75 BC	3/8-16 2 PLCS	–	6.00	6.37	.375
3″	3.00	4.63	2.25	3.88	2.13	0.625	6.00	3.250	2.00	2.54	1/4-20 ON 1.375 BC	5/8-11 4 PLCS ON 6.00 BC	1/2-13 2 PLCS	–	7.31	7.62	.500
4″	4.16	5.91	2.25	4.75	2.13	0.625	4.25	3.000	2.00	3.72	1/4-20 ON 1.375 BC	5/8-11 8 PLCS ON 7.50 BC	1/2-13 2 PLCS	–	8.37	9.00	.500
6″	6.10	7.88	2.50	5.75	2.13	0.750	5.38	3.000	2.25	5.85	1/4-20 ON 1.984 BC	3/4-10 8 PLCS ON 9.50 BC	1/2-13 2 PLCS	–	10.56	1.00	.625
8″	8.00	10.00	3.75	7.13	2.13	1.000	7.00	3.500	3.50	7.44	1/4-20 ON 2.203 BC	3/4-10 8 PLCS ON 11.75 BC	1/2-13 2 PLCS	–	13.63	13.62	.875
10″	10.00	12.00	3.75	8.50	2.60	1.250	7.00	5.016	3.50	9.60	–	7/8-9 12 PLCS ON 14.25 BC	1/2-13 4 PLCS	2.313	17.00	17.00	1.000
12″	12.11	14.00	4.00	10.00	2.85	1.500	8.00	5.016	3.75	11.61	–	7/8-9 12 PLCS ON 17.00 BC	1/2-13 4 PLCS	2.313	20.00	20.00	1.250
14″	12.69	16.00	4.69	10.75	2.85	1.500	8.00	5.016	4.50	12.18	–	1-8 12 PLCS ON 18.75 BC	1/2-13 4 PLCS	2.313	21.50	21.50	1.250
16″	14.69	17.88	4.69	12.00	2.85	1.500	8.00	5.016	4.50	14.26	–	1-8 16 PLCS ON 21.25 BC	1/2-13 4 PLCS	2.313	24.00	24.00	1.250
18″	16.75	19.75	5.69	13.13	3.17	1.750	8.00	5.016	5.50	16.10	–	1-1/8-7 16 PLCS ON 22.75 BC	1/2-13 4 PLCS	2.313	26.25	26.35	1.500
20″	18.50	21.75	5.94	14.38	3.17	1.750	8.69	5.016	5.75	17.92	–	1-1/8-7 20 PLCS ON 25.00 BC	1/2-13 4 PLCS	2.313	28.75	28.75	1.500
24″	22.13	25.88	6.19	16.81	**	**	9.00	5.016	6.00	21.79	–	1-1/4-7 20 PLCS ON 29.50 BC	1/2-13 4 PLCS	2.313	33.62	33.62	**
30″	28.50	32.00	7.19	20.25	**	**	9.00	6.000	7.00	27.88	–	1-1/4-7 24 PLCS ON 36.00 BC	3/4-10 4 PLCS	3.500	40.50	40.50	**
36″	34.00	38.58	8.06	24.50	**	**	10.00	7.000	7.88	33.44	–	1-1/2-6 32 PLCS ON 42.75 BC	3/4-10 4 PLCS	4.000	49.00	49.00	**

* Contact manufacturer for mounting dimensions.

** Contact manufacturer for correct shaft dimensions.