API GB Electric flange type ventilation butterfly valve

API GB Electric flange type ventilation butterfly valve

Usage and Features

D941W electric ventilated butterfly valve is made of the same material as the valve body into a sealing ring, and is electrically or gas driven. The applicable temperature depends on the material of the valve body, the nominal pressure is less than or equal to 0.6MPa. Generally applicable to industrial, metallurgical, environmental protection and other pipelines for ventilation to adjust the flow of media.

Main characteristics : novel design, reasonable, unique structure, light weight, quick opening and closing.Small operation force, convenient operation, labor – saving dexterity.

Adopt suitable materials to meet the low, medium and high temperature of different media and corrosive media, etc.

Adopt the standard

Design standard：GB/T 12238-1989 JB/T8692-1998

Flange connection dimensions： GB/T9115.1-2000

Structure length：GB/T 12221-1989

Pressure testing：GB/T 13927-92; JB/T 9092-1999Main technical parameters

Nominal diameter	DN	50～2000
Nominal pressure	PN	0.05	0.25	0.6
Test pressure	Strength test	0.075	0.375	0.9
	Seal test	≤1.5﹪Leakage rate
Applicable medium	Gas, dust gas, flue gas, etc
Driving form	Gas drive, electric drive

Material of main parts

Part Name	material
Valve body	Cast steel, stainless steel, chromium nickel titanium molybdenum steel, chromium titanium molybdenum steel and other special materials
Butterfly plate	Cast steel, stainless steel, chromium nickel titanium molybdenum steel, chromium titanium molybdenum steel and other special materials
Seal circle	Same as Valve body
valve rod	Carbon steel, 2Cr13, stainless steel, chromium nickel titanium molybdenum steel
Padding	Fluorine plastic, flexible graphite

D941W-(0.5.2.5.6) C.P.R.V series ventilation butterfly valve connection size

Nominal diameter	Structure length	External Dimensions（Reference)	Connection dimensions（Standard values）	Refer to the weight (kg)
0.05MPa and 0.25MPa	0.6MPa
mm	inches	L	H	H0	As	B	D	D1	n-d	D	D1	n-d
50	2	108	70	418	250	225	140	110	4-14	140	110	4-14	42
65	21/2	112	80	438	250	225	160	130	4-14	160	130	4-14	53
80	3	114	95	466	250	225	190	150	4-18	190	150	4-18	62
100	4	127	105	486	250	225	210	170	4-18	210	170	4-18	81
125	5	140	120	516	325	245	240	200	8-18	240	200	8-18	90
150	6	140	132	541	325	245	265	225	8-18	265	225	8-18	100
200	8	152	160	779	325	245	320	280	8-18	320	280	8-18	110
250	10	165	187	836	363	313	375	335	12-18	375	335	12-18	145
300	12	178	220	901	363	313	440	395	12-22	440	395	12-22	160
350	14	190	245	954	363	313	490	445	12-22	490	445	12-22	215
400	16	216	270	1003	363	313	540	495	16-22	540	495	16-22	230
450	18	222	297	1058	465	439	595	550	16-22	595	550	16-22	250
500	20	229	322	1111	546	556	645	600	20-22	645	600	20-22	260
600	24	267	377	1233	546	556	755	705	20-26	755	705	20-26	370
700	28	292	430	1338	546	556	860	810	24-26	860	810	24-26	400
800	32	318	487	1452	546	556	975	920	24-30	975	920	24-30	560
900	36	330	537	1588	632	706	1075	1020	24-30	1075	1020	24-30	580
1000	40	410	587	1689	632	706	1175	1120	28-30	1175	1120	28-30	660
1200	48	470	702	1938	632	706	1375	1320	32-30	1405	1340	32-33	950
1400	56	530	782	2670	790	1338	1575	1520	36-30	1630	1560	36-36	1280
1600	64	600	895	2810	868	1476	1790	1730	40-30	1830	1760	40-36	1510
1800	72	670	995	3020	868	1476	1990	1930	44-30	2045	1970	44-39	2500
2000	80	760	1095	3220	965	1600	2190	2130	48-30	2265	2180	48-42	2900