WELDED METAL HARD SEAL BUTTERFLY VALVE

group name: WAFER AND LUG TYPE B V

Min Order: 1 piece

brand name: KRV

model: DN600-DN2000

Nearest port for product export: Tianjin, Shanghai, Qingdao, Dalian

Delivery clauses under the trade mode: FOB, CFR, CIF, EXW

Acceptable payment methods: T/T, L/C, Credit Card, Westem Union, Cash

update time: Fri, 14 May 2021 17:47:37 GMT

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Packging & Delivery

Min Order1 piece

Briefing

The welded metal hard seal butterfly valve adopts three eccentric structure. It is an ideal hard seal butterfly valve

Detailed

Executive standard for welded metal hard seal butterfly valve

Design and manufacture	Welding size	Structural length	Test and inspection
GB/T12238 JB/T8527	GB/T12224	GB/T12221	GB/T13927、GB/T26480

Main technical parameters of welded metal hard seal butterfly valve

Nominal diameter	DN(mm)	50~700
Nominal pressure	PN(MPa)	0.6	1.0	1.6	2.5	4.0
Test pressure	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
Applicable media	Corrosivity of water, steam, oil, acid, etc
Applicable temperature	Applicable temperature of carbon steel: – 29 ℃ ~ 425 ℃, applicable temperature of stainless steel: – 40 ℃ ~ 600 ℃

Material of main parts of welded metal hard seal butterfly valve

Part name	Material Science
valve body	Cast steel, stainless steel, chromium molybdenum steel, alloy steel, dual phase steel
Disc	Cast steel, stainless steel, chromium molybdenum steel, alloy steel, dual phase steel
valve seat	Stainless steel, hardfacing Stellite and other hard alloys
seal ring	Stainless steel and high temperature resistant asbestos board are combined into multi-layer
Stem	20cr13, 1Cr13 stainless steel, chromium molybdenum steel, special materials
axle sleeve	Austenitic stainless steel, 304 nitriding
filler	Flexible graphite, PTFE
Packing gland	Cast steel, stainless steel
Bracket	Cast steel, stainless steel

Design drawing of this product

Main connection dimensions PN0.6/1.0MPa

Nominal pressure PN0.6MPa									Nominal pressure PN1.0MPa
DN	Dimensions							WT (kg)	Dimensions							WT(kg)
mm	L	D	d	H	H1	A	B	WT (kg)	L	D	d	H	H1	A	B	WT(kg)
600	390	636	602	499	1280	570	660	450	390	636	602	499	1280	570	660	465
700	430	726	692	566	1480	750	550	660	430	726	692	566	1480	750	550	680
800	470	826	792	632	1608	750	550	780	470	826	792	632	1608	750	550	810
900	510	926	892	693	1857	750	550	820	510	926	892	693	1857	750	550	860
1000	550	1028	992	757	2038	900	750	1460	550	1028	992	757	2038	900	750	1625
1200	630	1228	1192	851	2237	1000	925	1590	630	1228	1192	851	2237	1000	925	1770
1400	710	1428	1392	876	2411	1000	925	2185	710	1428	1392	876	2411	1000	925	2425
1600	790	1628	1592	1095	2756	1000	925	3210	790	1628	1592	1095	2756	1000	925	3560
1800	870	1828	1792	1214	3093	1100	980	4090	870	1828	1792	1214	3093	1100	980	4545
2000	950	2028	1992	1332	3355	1100	980	5610	950	2028	1992	1332	3355	1100	980	6230

Main dimensions of welded metal hard seal butterfly valve PN1.6MPa

Nominal pressure

Product use

Welded metal hard seal butterfly valve is widely used in heat, petroleum, chemical, electric power, metallurgy, food, medicine, light textile, papermaking and other industries. It can be installed in industrial pipe network with temperature ≤ 425 ℃ and medium of gas, air, steam, water, sea water, oil products, etc. for regulating flow and cutting off medium.

Product features of welded metal hard seal butterfly valve

1. Compact structure, small size, light weight, flexible operation, easy to use;

2. The three-dimensional eccentric multi-layer hard sealing structure is adopted, and its sealing performance is reliable and reaches zero leakage;

3. The valve has no flange, so it is convenient and beautiful to bind the pipe;

4. It has the characteristics of high temperature, high pressure, corrosion resistance and wear resistance.