Double Disc Butterfly Valve

Btterfly valves are mainly used for water supply and sewage systems, and this valve satisfies the specifications of KS 2333 (AWWA C504, BS 5155 and JIS B 2064).
Manufacturing manual, electric, open/close type (two-phase) and cylinder type by adjustment method.
It is designed to be operated easily even under heavy conditions.

Standard

Vertical type 200㎜ ~ 3,000㎜ (※ Large diameter of 3,000㎜ or more can be manufactured.)

According to customer requirements, small diameters of 50 mm or less can be manufactured.

Working pressure

4.5㎏f/㎠, 7.5㎏f/㎠, 10㎏f/㎠ (※ 16㎏f/㎠ or more can be manufactured according to the demand of the customer.)

Valve joint part

Flange type, standard specifications are KS D3578, KS D4309, and other specifications are applicable according to customer's request.

Working fluid

Water and sewage purpose

Material
Dimensions

Main part material

No	Part name	Meterial	Q'ty
1	Body	GCD450, SSC13	1
2	Disc	GCD450, SSC13	1
3	Body Seat	STS304	1
4	Disc Seat	NBR	1
5	Seat Gland	STS304	1
6	Gland Bolt	STS304	1 Set
7	Main Stem	STS304	1
8	Bush	BC6	1
9	Packing	NBR	1 Set
10	Packing Gland	SS400	1
11	Gland Bolt	STS304	1 Set
12	Stub Stem	STS304	1
13	Bush	BC6	1
14	Collar	STS304	1
15	Control Bolt	STS304	1
16	End Cover	GCD450, SSC13	1
17	Pin	STS304	1 Set
18	Gear Box	ASS'Y	1
19	Actuator	ASS'Y	1

※ Other materials can be applied according to the customer's request.

External dimensions

**Double Disc Butterfly Valve Dimensions (200A~500A)** / Unit : ㎜
DN	L	Flange					A1	A2	A3	A4	H1
		ØD	ØG	Bolt Hole		T × f
		ØD	ØG	ØC	n-Øh	T × f
200	152	340	264	295	8-23	24 × 3	320	375	769	252	430
250	165	395	319	350	12-23	25 × 3	350	375	829	252	430
300	178	445	367	400	12-23	27 × 4	400	375	849	252	430
350	190	505	427	460	16-23	28 × 4	440	375	879	252	430
400	216	565	477	515	16-28	29 × 4	480	375	934	252	430
450	222	615	527	565	20-28	30 × 4	520	420	999	207	450
500	229	670	582	620	20-28	31 × 4	550	420	1039	207	450

1. The flange is KS B 2333 standard, and other standards can be applied upon request.
2. The face-to-face distance of the valve is KS B 2333 standard, and other standards can be applied upon request.

**Double Disc Butterfly Valve Dimensions (600A~3,000A)** / Unit : ㎜
DN	L	Flange					A1	A2	A3	A4	H1	H2
		ØD	ØG	Bolt Hole		T × f
		ØD	ØG	ØC	n-Øh	T × f
600	267	780	682	725	20-31	32 × 4	620	1142	370	345	450	712
700	292	895	797	840	24-31	34 × 4	700	1227	290	425	500	800
800	318	1015	904	950	24-34	36 × 5	760	1287	290	425	550	800
900	330	1115	1004	1050	28-34	38 × 5	820	1485	290	425	600	800
1000	410	1230	1111	1160	28-37	40 × 5	900	1545	290	425	650	800
1100	450	1366	1200	1270	32-37	42 × 5	970	1732	405	360	700	810
1200	470	1470	1304	1387	32-37	44 × 5	1050	1775	405	360	750	810
1350	530	1642	1462	1552	36-38	48 × 6	1170	1910	435	426	825	905
1500	530	1800	1620	1710	36-38	50 × 6	1270	2010	435	426	900	905
1650	530	1950	1770	1870	40-40	50 × 6	1350	2060	350	810	1050	1115
1800	530	2115	1960	2020	44-48	50 × 6	1450	2305	350	810	1075	1115
2000	550	2325	2170	2230	48-48	54 × 6	1550	2405	350	810	1175	1115
2200	550	2550	2370	2440	52-56	61 × 4	1680	2625	350	810	1350	1115
2400	580	2760	2440	2650	56-56	64 × 4	1840	2725	350	810	1450	1115
2500	580	2860	2670	2750	56-56	68 × 5	1900	2775	480	940	1500	1210
2600	580	2960	2780	2850	60-45	68 × 5	2000	2905	480	940	1550	1210
2800	600	3180	3000	3070	64-56	72 × 5	2100	3005	480	940	1650	1210
3000	600	3405	3210	3290	64-56	76 × 5	2150	3055	480	940	1750	1210

1. The flange is KS B 2333 standard, and other standards can be applied upon request.
2. The face-to-face distance of the valve is KS B 2333 standard, and other standards can be applied upon request.