Construction And Usage

  The open-close mounted pad of the valve is round. The disk rotating around the axis of its own inside of the valve body, carries out the open-close or adjusting function It features; 1)simple structure．small volume and light weight; 2)Quick open-close．1abour saving and small fluid resistance; 3)Good a adjustable performance, can be adjusted flexibly within 0～90°, suitable for the pipeline of water supply and drainage, high buildings．firefighting, petroleum．chemical industry．medicine, food etc trades to act as open-close or adjustment

Product Manufacture And Acceptance Standards

  Standards of design: GB12238, API609, JIS B2064;

  Structural lenth: GB/T15188.2

  Standard of flange: GB4216, GB9113, GB9115

  Testing standards: GB/T13927, JB/T9092

  Main Technique Number

Nominal diameter		4042000
Nominal pressure		0.25		0.6		1.0		1.6
Test pressure (MPa)	Shell strength	0.375		0.9		1.5		2.4
	Sealing performance	0.275		0.66		1.1		1.76
Applicable motiumsss		Water, Oil, Steam, Sea-water, Acidssss
Working temperature		Rubber	NBR	Ethylene-pro-pylene rubber	PTFE	Silicon rubber	Fluorub-ber
		0.60	-204+80	-40-+150	-40- +150	-70-+25	-15-+250

Maaterial For Main Parts

Name of parts	Material
Body	Cl, Ductile lron, No25, WCB, Crstainlesgsteel
Butterfly board	l, Ductile lron, No25, WCB, Crstainlesgsteel
Stem	Grade．WCB．Crstainlesgsteel
Sealing fale	Neoprene, NBR, EPOM．PTFE
Palking	PTFE, Flexible．Grapnlte. NBR V. washer

Main External And Connecting Dimensions

Nominal diameter DN(mm)	Nomianal pressure PN(MPa)	Connecting dimensions(mm)				Extermal dimensions(mm)
		L	D	D1	Z-φ d	D71× /J				D371X/J			D671X/J			D971X/.
						H	Ho	A	B	H0	A	B	H0	A	B	H0	A	B
40	1.0/1.6	43	145	110	4-18	58	220	266	65	295	193	125	305			420	125	125
50		43	165	125	4-18	63	235	266	65	306	193	125	316	180	65	438	125	125
65		46	185	145	4-18	70	250	266	65	320	193	125	330	180	65	453	125	125
80		46	200	160	4-18/8-18	83	275	266	65	345	193	125	385	245	72	478	125	125
100		52	220	180	8-18	105	316	266	65	385	193	125	435	240	72	519	125	125
125		56	250	210	8-18	115	340	310	65	410	193	125	450	240	72	713	325	245
150		56	285	240	8-22	137	376	310	65	445	193	125	625	350	93	749	325	245
200		60	340	295	8-22/12-22	164	470	370	90	570	283	165	720	350	93	843	325	245
250		68	395/405	350/355	12-22	206				645	283	165	805	550	350	945	363	373
300		78	445/460	400/410	12-22	230				740	334	175	840	600	350	1010	363	373
350	1.0	78	505	460	16-22	248				765	334	175	885	600	350	1050	363	373
400		102	565	515	16-26	290				875	425	210	975	600	350	1135	363	373
450		114	615	565	20-26	320				940	425	210	1040	750	380	1220	465	413
500		127	670	620	20-26	345				995	425	210	1095	750	380	1330	546	431
600		154	780	725	20-30	410				1130	425	210	1230	750	380	1400	546	556
700		165	895	840	24-30	480				1475	620	320	1475	750	380	1530	546	556
800		190	1015	950	24-33	525				1535	620	320	1505	750	380	1600	546	556
900		203	1115	1050	28-33	585				1660	620	320	1660	1250	380	1745	617	706
1000		216	1230	1160	28-36	640				1760	620	320	1760	1500	580	1810	632	706
1200		254	1455	1380	32-39	755				1995	620	320	1995	1500	580	2035	632	706
1200	0.6/0.25	254	1400/1375	1340/1320	32-34/32-30	755				1995	620	320	1995			2035	632	706
1400		279	1620/1575	1560/1620	36-34/36-30	885				2360	620	320	2360			2785	632	706
1600		318	1820/1785	1760/1730	40-34/40-30	1035				2525	780	450	2525			2620	715	835
1800		356	2045/1985	1970/1930	44-41/44-30	1175				2860	780	450	2860			2760	715	835
2000		406	2265/2185	2180/2130	48-48/48-30	1325				3250	920	570	3250			2920	715	835