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ELECTRIC DOUBLE CLIP MULTI-LAYER METAL HARD SEAL BUTTERFLY VALVE

ELECTRIC DOUBLE CLIP MULTI-LAYER METAL HARD SEAL BUTTERFLY VALVE

ELECTRIC DOUBLE CLIP MULTI-LAYER METAL HARD SEAL BUTTERFLY VALVE
CategoriesWAFER AND LUG TYPE B V
BrandKRV
ModelDN40-DN2000
Update Time2021-06-17
Detail Information

版头_01

Product features of Pneumatic wafer 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 manufactureFlange connectionStructural lengthTest and inspection
GB/T 12238、JB/T 8527GB/T 9113、JB/T 79、HG20592GB/T 12221GB/T 13927
API 609EN 1092-1/2、ANSI/ASME B16.5/B16.47、JIS B2220API 609、EN558API 598

Main technical parameters

Nominal diameterDN(mm)50~200050~500
Nominal pressurePN(MPa)0.61.01.62.54.0
Test pressure PS (MPA)strength test0.91.52.43.756.0
Sealing test0.661.11.762.754.4
Airtight seal test0.60.60.60.60.6
Leakage rateZero leakage or<0.1×DNmm³/s(Conform GB/T 13927 Standard)
Applicable temperatureCarbon steel:-29℃~425℃      Stainless steel:-40℃~600℃
Applicable mediaAir, water, steam, gas, oil, acid, alkali, salt and medium with weak corrosion
Driving formWorm gear drive, pneumatic drive, electric drive, hydraulic drive

 

Materials of main parts of Pneumatic wafer clip multi-layer metal hard seal butterfly valve

Part nameMaterial Science
BodyCast steel, stainless steel, chromium molybdenum steel, alloy steel, dual phase steel
PlateCast steel, stainless steel, chromium molybdenum steel, alloy steel, dual phase steel
SeatStainless steel, hardfacing Stellite and other hard alloys
Sealing ringStainless steel and high temperature resistant asbestos board are combined into multi-layer
Stem20cr13, 1Cr13 stainless steel, chromium molybdenum steel, special materials
ShaftAustenitic stainless steel, 304 nitriding
PackingFlexible graphite, PTFE
Packing glandCast steel, stainless steel
StentsCast steel, stainless steel

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


PN0.6-PN1.0MPa    Main connecting dimensions of Pneumatic wafer clip multi-layer metal hard seal butterfly valve

DNLHD373HD673HD973HPN0.6MPaPN1.0MPaD373HWT(Kg)
mmInchShortLongH1A1B1H2A2B2H3A3B3D1Z-ΦdD1Z-Φd
401 ½3333107330180200625245725302502551004-141104-1810
5024343112350180200625245725302502551104-141254-1812
652 ½4646115370180200625245725302502551304-141458-1813
8034664125380180200645245705652502551504-181608-1815
10045264138420180200675355926002502551704-181808-1817
12555670164460180200715355926402502552008-182108-1827
15065676175555270280800355927043003152258-182408-2229
200860892157804004258502501707753003152808-182958-2245
250106811424384040042592525017094530031533512-1835012-2269
30012781142859954505601035450220107030031539512-2240012-2286
350147812732010504505601070450220114030031544512-2246016-22122
4001610214035012205355801190450220121030031549516-2251516-26141
4501811415235012805355801250650280133557571455016-2256520-26191
5002012715238013655355801290650280141557571460020-2262020-26260
6002415417843514605706601455850380160565681070520-2672520-30380
7002816522948015207505501585850380184465681081024-2684024-30450
80032190241530171075055017001250380204065681092024-3095024-33650
900362032415951810750550196512503802255785863102024-30105028-33830
1000402163006501900900750201512503802380785863112028-30116028-361050
12004825436077511801000925225012503802640785863134032-33138032-391400
14005627939087014501000925---2886--156036-36159036-421900
160064318440100017301000925---3156--176040-36182040-482900
180072356490111030201100980---3421--197044-39202044-484000
200080406540125032701100980---3685--218048-42223048-485300

 

PN1.6-PN2.5MPa Main connecting dimensions of Pneumatic wafer clip multi-layer metal hard seal butterfly valve

DNLHD373HD673HD973HPN1.6MPaPN2.5MPaD373HWT(Kg)
mmInchShortLongH1A1B1H2A2B2H3A3B3D1Z-ΦdD1Z-Φd
401 ½3333107330180200625245725302502551104-181104-1810
5024343112350180200625245725302502551254-181254-1812
652 ½4646115370180200625245725302502551458-181458-1813
8034664125380180200645245705652502551608-181608-1815
10045264138420180200675355926002502551808-181908-2217
12555670164460180200715355926402502552108-182208-2627
15065676175555270280800355927043003152408-222508-2629
2008608921578040042585025017077530031529512-2231012-2645
250106811424384040042592525017094530031535512-2637012-3069
30012781142859954505601035450220107030031541012-2643016-3086
350147812732010504505601070450220114030031547016-2649016-33122
4001610214035012205355801190450220121030031552516-3055016-36141
4501811415235012805355801250650280133557571458520-3060020-36191
5002012715238013655355801290650280141557571465020-3366020-36260
6002415417843514605706601455850380160565681077020-3677020-39380
7002816522948015207505501585850380184465681084024-3687524-42450
80032190241530171075055017001250380204065681095024-3999024-48650
900362032415951810750550196512503802255785863105028-39109028-48830
1000402163006501900900750201512503802380785863117028-42121028-561050
12004825436077511801000925225012503802640785863139032-48142032-561400
14005627939087014501000925---2886--159036-48164036-621900
160064318440100017301000925---3156--182040-56186040-622900
180072356490111030201100980---3421--202044-56207044-704000
200080406540125032701100980---3685--223048-62230048-705300

PN 4.0MPa Main connecting dimensions of Pneumatic wafer clip multi-layer metal hard seal butterfly valve

DNLHD373HD673HD973HPN4.0MPa
mmInchH1A1B1H2A2B2H3A3B3D1Z-Φd
502-1123501802006252501705302502551254-18
652 ½-1153702702806252501705302502551458-18
803491203802702806452501705652502551608-18
1004561384202702806752501706002502551908-22
1255641644603804207154502206402502552208-26
1506701755553804208004502207053003152508-26
20087120878040042585045022077530031532012-30
250107624384040042592545028094530031538512-33
30012832859554505601035650280107030031545016-33
3501412732010504505601070650280114030031551016-36
4001614035012205355801190650280121030031558516-39
450181603501280535580---133557571461020-39
500201703801365535580---141557571467020-42

 

Note: the flange dimensions in this table are in accordance with JB / T 79 standard series 1 and en 1092-1 / 2, and the structural length is in accordance with GB / T 12221, API609 and en558 standards.

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