MULTI LAYER METAL HARD SEAL BUTTERFLY VALVE WITH WORM GEAR

group nameWAFER AND LUG TYPE B V
Min Order1 piece
brand nameKRV
modelDN40-DN2000
payment methodT/T, L/C, Credit Card, Westem Union, Cash
update timeFri, 14 May 2021 17:50:51 GMT

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Packging & Delivery

Min Order1 piece

Briefing

The butterfly valve is a multi-layer metal hard seal butterfly valve

Detailed

Product features of worm gear double clip multi-layer metal hard seal butterfly valve

This butterfly valve is a new generation product developed by absorbing and digesting foreign technology and combining with the opinions of domestic users and accumulated experience in production.

1. The three-dimensional eccentric structure is adopted, and the multi-level sealing ring structure is adopted for the sealing ring of the valve body, so that the butterfly plate can contact with the sealing surface of the valve body evenly and reliably, and the air seal can be achieved without leakage.

2. Unique structure, flexible operation, labor saving, convenient, long service life.

3. Three dimensional eccentricity with high temperature resistance, corrosion resistance and wear resistance.

It can be widely used in food, medicine, petrochemical industry, power plant, steel plant, industrial environmental protection water treatment, high-rise buildings, water supply and drainage pipelines. It is an ideal device for regulating flow and cutting off fluid.

Executive Standards

Design and manufacture	Flange connection	Structural length	Test and inspection
GB/T 12238、JB/T 8527	GB/T 9113、JB/T 79、HG20592	GB/T 12221	GB/T 13927
API 609	EN 1092-1/2、ANSI/ASME B16.5/B16.47、JIS B2220	API 609、EN558	API 598

Main technical parameters

Nominal diameter	DN(mm)	50~2000				50~500
Nominal pressure	PN(MPa)	0.6	1.0	1.6	2.5	4.0
Test pressure PS (MPA)	strength test	0.9	1.5	2.4	3.75	6.0
	Sealing test	0.66	1.1	1.76	2.75	4.4
	Airtight seal test	0.6	0.6	0.6	0.6	0.6
Leakage rate	Zero leakage or<0.1×DNmm³/s（Conform GB/T 13927 Standard）
Applicable temperature	Carbon steel：-29℃~425℃ Stainless steel：-40℃~600℃
Applicable media	Air, water, steam, gas, oil, acid, alkali, salt and medium with weak corrosion
Driving form	Worm gear drive, pneumatic drive, electric drive, hydraulic drive

Materials of main parts of worm gear double clip multi-layer metal hard seal butterfly valve

Part name	Material Science
Body	Cast steel, stainless steel, chromium molybdenum steel, alloy steel, dual phase steel
Plate	Cast steel, stainless steel, chromium molybdenum steel, alloy steel, dual phase steel
Seat	Stainless steel, hardfacing Stellite and other hard alloys
Sealing ring	Stainless steel and high temperature resistant asbestos board are combined into multi-layer
Stem	20cr13, 1Cr13 stainless steel, chromium molybdenum steel, special materials
Shaft	Austenitic stainless steel, 304 nitriding
Packing	Flexible graphite, PTFE
Packing gland	Cast steel, stainless steel
Stents	Cast steel, stainless steel

Drawing of double clip multi-layer metal hard seal butterfly valve

PN0.6-PN1.0MPa Main connecting dimensions of worm gear double clip multi-layer metal hard seal butterfly valve

DN		L		H	D373H			D673H			D973H			PN0.6MPa		PN1.0MPa		D373HWT(Kg)
mm	Inch	Short	Long	H	H1	A1	B1	H2	A2	B2	H3	A3	B3	D1	Z-Φd	D1	Z-Φd	D373HWT(Kg)
40	1 ½	33	33	107	330	180	200	625	245	72	530	250	255	100	4-14	110	4-18	10
50	2	43	43	112	350	180	200	625	245	72	530	250	255	110	4-14	125	4-18	12
65	2 ½	46	46	115	370	180	200	625	245	72	530	250	255	130	4-14	145	8-18	13
80	3	46	64	125	380	180	200	645	245	70	565	250	255	150	4-18	160	8-18	15
100	4	52	64	138	420	180	200	675	355	92	600	250	255	170	4-18	180	8-18	17
125	5	56	70	164	460	180	200	715	355	92	640	250	255	200	8-18	210	8-18	27
150	6	56	76	175	555	270	280	800	355	92	704	300	315	225	8-18	240	8-22	29
200	8	60	89	215	780	400	425	850	250	170	775	300	315	280	8-18	295	8-22	45
250	10	68	114	243	840	400	425	925	250	170	945	300	315	335	12-18	350	12-22	69
300	12	78	114	285	995	450	560	1035	450	220	1070	300	315	395	12-22	400	12-22	86
350	14	78	127	320	1050	450	560	1070	450	220	1140	300	315	445	12-22	460	16-22	122
400	16	102	140	350	1220	535	580	1190	450	220	1210	300	315	495	16-22	515	16-26	141
450	18	114	152	350	1280	535	580	1250	650	280	1335	575	714	550	16-22	565	20-26	191
500	20	127	152	380	1365	535	580	1290	650	280	1415	575	714	600	20-22	620	20-26	260
600	24	154	178	435	1460	570	660	1455	850	380	1605	656	810	705	20-26	725	20-30	380
700	28	165	229	480	1520	750	550	1585	850	380	1844	656	810	810	24-26	840	24-30	450
800	32	190	241	530	1710	750	550	1700	1250	380	2040	656	810	920	24-30	950	24-33	650
900	36	203	241	595	1810	750	550	1965	1250	380	2255	785	863	1020	24-30	1050	28-33	830
1000	40	216	300	650	1900	900	750	2015	1250	380	2380	785	863	1120	28-30	1160	28-36	1050
1200	48	254	360	775	1180	1000	925	2250	1250	380	2640	785	863	1340	32-33	1380	32-39	1400
1400	56	279	390	870	1450	1000	925	-	-	-	2886	-	-	1560	36-36	1590	36-42	1900
1600	64	318	440	1000	1730	1000	925	-	-	-	3156	-	-	1760	40-36	1820	40-48	2900
1800	72	356	490	1110	3020	1100	980	-	-	-	3421	-	-	1970	44-39	2020	44-48	4000
2000	80	406	540	1250	3270	1100	980	-	-	-	3685	-	-	2180	48-42	2230	48-48	5300

PN1.6-PN2.5MPa Main connecting dimensions of worm gear double clip multi-layer metal hard seal butterfly valve

DN		L		H	D373H			D673H			D973H			PN1.6MPa		PN2.5MPa		D373HWT(Kg)
mm	Inch	Short	Long	H	H1	A1	B1	H2	A2	B2	H3	A3	B3	D1	Z-Φd	D1	Z-Φd	D373HWT(Kg)
40	1 ½	33	33	107	330	180	200	625	245	72	530	250	255	110	4-18	110	4-18	10
50	2	43	43	112	350	180	200	625	245	72	530	250	255	125	4-18	125	4-18	12
65	2 ½	46	46	115	370	180	200	625	245	72	530	250	255	145	8-18	145	8-18	13
80	3	46	64	125	380	180	200	645	245	70	565	250	255	160	8-18	160	8-18	15
100	4	52	64	138	420	180	200	675	355	92	600	250	255	180	8-18	190	8-22	17
125	5	56	70	164	460	180	200	715	355	92	640	250	255	210	8-18	220	8-26	27
150	6	56	76	175	555	270	280	800	355	92	704	300	315	240	8-22	250	8-26	29
200	8	60	89	215	780	400	425	850	250	170	775	300	315	295	12-22	310	12-26	45
250	10	68	114	243	840	400	425	925	250	170	945	300	315	355	12-26	370	12-30	69
300	12	78	114	285	995	450	560	1035	450	220	1070	300	315	410	12-26	430	16-30	86
350	14	78	127	320	1050	450	560	1070	450	220	1140	300	315	470	16-26	490	16-33	122
400	16	102	140	350	1220	535	580	1190	450	220	1210	300	315	525	16-30	550	16-36	141
450	18	114	152	350	1280	535	580	1250	650	280	1335	575	714	585	20-30	600	20-36	191
500	20	127	152	380	1365	535	580	1290	650	280	1415	575	714	650	20-33	660	20-36	260
600	24	154	178	435	1460	570	660	1455	850	380	1605	656	810	770	20-36	770	20-39	380
700	28	165	229	480	1520	750	550	1585	850	380	1844	656	810	840	24-36	875	24-42	450
800	32	190	241	530	1710	750	550	1700	1250	380	2040	656	810	950	24-39	990	24-48	650
900	36	203	241	595	1810	750	550	1965	1250	380	2255	785	863	1050	28-39	1090	28-48	830
1000	40	216	300	650	1900	900	750	2015	1250	380	2380	785	863	1170	28-42	1210	28-56	1050
1200	48	254	360	775	1180	1000	925	2250	1250	380	2640	785	863	1390	32-48	1420	32-56	1400
1400	56	279	390	870	1450	1000	925	-	-	-	2886	-	-	1590	36-48	1640	36-62	1900
1600	64	318	440	1000	1730	1000	925	-	-	-	3156	-	-	1820	40-56	1860	40-62	2900
1800	72	356	490	1110	3020	1100	980	-	-	-	3421	-	-	2020	44-56	2070	44-70	4000
2000	80	406	540	1250	3270	1100	980	-	-	-	3685	-	-	2230	48-62	2300	48-70	5300

PN 4.0MPa Main connecting dimensions of worm gear double clip multi-layer metal hard seal butterfly valve

DN		L	H	D373H			D673H			D973H			PN4.0MPa
mm	Inch	L	H	H1	A1	B1	H2	A2	B2	H3	A3	B3	D1	Z-Φd
50	2	-	112	350	180	200	625	250	170	530	250	255	125	4-18
65	2 ½	-	115	370	270	280	625	250	170	530	250	255	145	8-18
80	3	49	120	380	270	280	645	250	170	565	250	255	160	8-18
100	4	56	138	420	270	280	675	250	170	600	250	255	190	8-22
125	5	64	164	460	380	420	715	450	220	640	250	255	220	8-26
150	6	70	175	555	380	420	800	450	220	705	300	315	250	8-26
200	8	71	208	780	400	425	850	450	220	775	300	315	320	12-30
250	10	76	243	840	400	425	925	450	280	945	300	315	385	12-33
300	12	83	285	955	450	560	1035	650	280	1070	300	315	450	16-33
350	14	127	320	1050	450	560	1070	650	280	1140	300	315	510	16-36
400	16	140	350	1220	535	580	1190	650	280	1210	300	315	585	16-39
450	18	160	350	1280	535	580	-	-	-	1335	575	714	610	20-39
500	20	170	380	1365	535	580	-	-	-	1415	575	714	670	20-42

MULTI LAYER METAL HARD SEAL BUTTERFLY VALVE WITH WORM GEAR

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