Electric Triple Offset Butterfly Valve

Description

Electric triple offset butterfly valve

The Electric Triple Offset Butterfly Valve functions as a dependable and efficient process flow control solution for multiple industrial applications. The zero-leakage design of this advanced double offset butterfly valve technology provides optimal performance while requiring minimal maintenance. The valve stands out as an excellent selection for Oil & Gas, Chemical & Coal, Petrochemical, Desalination Plants, Waterworks, Fossils, District Heating, Nuclear, Iron & Steel, Mining, Automotive, Shipyards, and Aerospace industries because of its strong build and built-in fire safety features.

Key Features

ISO 5211 Mounting Bracket: The device allows simple actuator mounting for secure valve operation that maintains efficiency.
Triple Offset Design: The ellipsoidal sealing geometry of this product delivers exceptional sealing performance and extended service duration.
Zero Leakage: The bubble-tight shut-off design prevents any rubbing during 90-degree rotation across different pressure and temperature conditions.
Inherently Firesafe: The design includes fire hazard prevention features which boost both safety and reliability of the valve.
Durable Construction: The product features a Duplex material metal seal ring combined with a Stellite grade 21 seat that provides long-lasting superior tightness.
Interchangeable Design: The single-piece cast body meets the standards of ISO 5752, ASME B16.10, and API 609 double-flanged short pattern standards which allows for easy replacement with other valve types.

FEATURES

ISO 5211 bracket for easy mounting of actuators
Triple offset and ellipsoidal sealing geometry
Bubble tight shut-off
Inherently firesafe by design
A metal seal ring in Duplex and a highly wear-resistant Stellite grade 21 seat ensure prolonged superior tightness
Single piece cast body with face to face dimensions to ISO5752, ASME B16.10 and API 609 double flanged short pattern, guarantees interchangeability with other valve types
Extensively hardened bearings, incorporating a standard reinforce, braided, flexible graphite bearing protector, ensure increased reliability
Blowout proof devices on shaft keep sure safety of shaft operating
Pin-less shaft to disc connection makes the valve convenient for parts replacement and reliable even under corrosion

Connection	Double flange
Size	3″-80″ for PN10,PN16,Class150; 3″-48″ for PN25,PN40,Class300; 3″-24″ for Class600
Pressure	PN10,PN16,PN25,PN40,Class150,Class300,Class600
Flange standard	ASME B16.5 Class150,Class300,Class600; EN1092 PN16,PN25,PN40
Face to face	ISO 5752, ASME B16.10, API609 Double flanged short pattern
Pressure test	API 598, ISO 5208 Rate A, ANSI B16.104(ANSI/FCI 70-2)Class Ⅵ
Temperature	-29°C to +538°C
Operator	Lever，Gear box， Pneumatic actuator， Electric actuator

No.	Part name	Material
1	Body	WCB	CF8M
2a	Disc	WCB,CF8	CF8M
2b	Disc sealing	UNS31803(duplex)+graphite
2c	Disc sealing retainer	SS304	SS316
2d	Disc sealing retainer screw	SS304	SS316
3	Seat welded surface	Stellite Gr.21
4	Shaft	17-4 PHSS,1.4462
5	Packing gland	CF8
6	Bottom cover	Same as body
7	Cover seal	Graphite
8	Thrust washer	SS316
9	Bracket	WCB	CF8M
10	Retaining ring	SS304
11	Packing	RPTFE, Graphite
12	Packing ring	SS316
13	Bearing	SS316+PTFE
14	Thrust bearing	SS316
15	Key	SS316
16	Bolt	SS304
17	Bolt	SS304
18	Bolt	SS304
19	Nut	SS304

SIZE		A	B	C	D				E	Top Flange	L	WT(kg)
SIZE		A	B	C	Class150	PN10	PN16	PN25	E	Top Flange	L	WT(kg)
DN	INCH	Class150,PN10,PN16,PN25
80	3″	260	125	17.5	190	200	200	200	14	F07	114	30
100	4″	290	141	17.5	230	220	220	235	14	F07	127	40
125	5″	310	150	17.5	255	250	250	270	14	F07	140	45
150	6″	330	165	18.5	280	285	285	300	17	F10	140	50
200	8″	385	214	24.5	345	340	340	360	22	F10	152	85
250	10″	425	243	24.5	405	395	405	425	22	F10	165	120
300	12″	490	286	30	485	445	460	485	27	F12	178	160
350	14″	525	312	30	535	505	520	555	27	F12	190	195
400	16″	545	350	39	595	565	580	620	36	F14	216	255
450	18″	580	383	49	635	615	640	670	46	F16	222	310
500	20″	640	407	49	700	670	715	730	46	F16	229	390
600	24″	690	484	60	815	780	840	845	55	F25	267	565
700	28″	720	525	130	925	895	910	960	80	F30	292
750	30″	750	550	130	985				80	F30	318
800	32″	760	600	130	1060	1015	1025	1085	98	F30	318
900	36″	795	660	150	1170	1115	1125	1185	120	F35	330
1000	40″	815	720	180	1290	1230	1255	1320	130	F35	410
1050	42″	850	750	180	1345				150	F35	410
1200	48″	995	825	200	1510	1455	1485		180	F40	470

SIZE		A	B	C	D		E	Top Flange	L	WT(kg)
SIZE		A	B	C	Class300	PN40	E	Top Flange	L	WT(kg)
DN	INCH	Class300,PN40
80	3″	260	100	17.5	210	200	14	F07	180	30
100	4″	290	124	17.5	255	235	14	F07	190	40
125	5″	330	144	18.5	280	270	17	F10	200	60
150	6″	350	150	24.5	320	300	22	F10	210	75
200	8″	415	204	30	380	375	27	F12	230	115
250	10″	455	238	39	445	450	36	F14	250	170
300	12″	490	268	39	520	515	36	F14	270	170
350	14″	545	294	49	585	580	46	F16	290	315
400	16″	575	320	60	650	660	55	F25	310	415
450	18″	660	341	60	710	685	55	F25	330	490
500	20″	700	383	80	775	755	75	F30	350	600
600	24″	785	442	80	915	890	75	F30	390	900
700	28″	800	590	150	1035		120	F35	430
750	30″	830	600	180	1090		130	F35	450
800	32″	860	720	200	1150		170	F40	470
900	36″	940	780	200	1270		180	F40	510
1000	40″	910	750	250	1240		200	F48	550
1050	42″	950	800	250	1290		210	F48	570
1200	48″	1000	850	250	1465		220	F48	630

SIZE		A	B	C	D			E	Top Flange	L	WT(kg)
SIZE		A	B	C	Class600	PN63	PN100	E	Top Flange	L	WT(kg)
DN	INCH	Class600,PN63,PN100
80	3″	260	145	17.5	210	215	230	14	F07	180	50
100	4″	298	185	24.5	275	250	265	22	F10	190	70
125	5″	400	200	30	330	295	315	27	F12	200	90
150	6″	420	216	39	355	345	355	36	F14	210	125
200	8″	445	265	39	420	415	430	36	F14	230	200
250	10″	505	315	49	510	470	505	46	F16	250	315
300	12″	600	362	49	560	530	585	46	F16	270	435
350	14″	610	390	60	605	600	655	55	F25	290	485
400	16″	680	440	60	685	670		55	F25	310	685
450	18″	683	460	80	745			75	F30	330	815
500	20″	795	526	80	815			75	F30	350	1050
600	24″	885	623		940				F35	390	1600
700	28″
750	30″
800	32″
900	36″
1000	40″
1050	42″
1200	48″

Electric actuator

On-off type: feedback signal: Passive contact signal/4-20mA/ resistance signals.
Regulation type: Input signal 4-20mA/0-10V/1-5V；
Feedback signal: 4-20mA/0-10V/1-5V
Voltage: AC220V380V110V24V、DC12V24V etc；Special voltage can be customized.
Explosion-proof class: Can be choose explosion-proof type EX d IIBT4

Type	Control type	Function
Electric actuator	ON-OFF type	Feedback: the active signal, passive contact signal, resistance, 4-20mA
	Regulation type	Input and output signal: 4-20mA, 0-10v, 1-5v, switch, MODBUS, PROFIBUS field bus
	Filed operation	The field, remote control switch regulation and MODBUS, PROFIBUS field bus

FAQS

What is an triple offset butterfly valve?

The double eccentric offset butterfly valve exists under two alternative names which include high-performance butterfly valve and double eccentric butterfly valve. The valve operates with thick media under high pressure because its design minimizes contact between the disc and seat.

The stem located behind the circular disc serves as the balancing point of this valve. The design enables the disc to automatically position itself at the center point which results in a tight seal. The valve maintains contact with the soft seat only when it is fully closed thus extending its operational lifespan.

What is a butterfly valve used for?

The main applications of butterfly valves include controlling the amount of fluid entering pipe systems at startup and isolating specific areas of large piping networks and preventing backflow.

Caustic,
Corrosive,
Dry Chlorine,
Oxygen,
Seawater,
Sour Gas,
Steam,
Toxic
Ultra Pure Water,
Vacuum, and

Industries

Chemical,
Food and Beverage,
HVAC,
Mining,
Oil and Gas,
Petrochemical,
Pharmaceutical,
Power Generation,
Pulp and Paper,
Refining,
Sugar Processing, and
Water Filtration.

Butterfly valve PN16 Flange size chart

NPS	DN	OD	PCB	Bolt	n-bolt
3/8	DN10	90	60	14	4
1/2	DN15	95	65	14	4
3/4	DN20	105	75	14	4
1	DN25	115	85	14	4
11/4	DN32	140	100	18	4
11/2	DN40	150	110	18	4
2	DN50	165	125	18	4
21/2	DN65	185	145	18	8
3	DN80	200	160	18	8
4	DN100	220	180	18	8
5	DN125	250	210	18	8
6	DN150	285	240	22	8
8	DN200	340	295	22	12
10	DN250	405	355	26	12
12	DN300	460	410	26	12
14	DN350	520	470	26	16
16	DN400	580	525	30	16
18	DN450	640	585	30	20
20	DN500	715	650	33	20
24	DN600	840	770	36	20
28	DN700	910	840	36	24
32	DN800	1025	950	39	24
36	DN900	1125	1050	39	28
40	DN1000	1255	1170	42	28
48	DN1200	1485	1390	48	32
56	DN1400	1685	1590	48	36
64	DN1600	1930	1820	56	40
72	DN1800	2130	2020	56	44
80	DN2000	2345	2230	62	48

Butterfly valve ASME ANSI CLASS 150LB Flange size chart

NPS	DN	OD	PCB	Bolt	n-bolt
1/2	DN15	89	60.5	16	4
3/4	DN20	99	69.8	16	4
1	DN25	108	79.2	16	4
11/4	DN32	117	88.9	16	4
11/2	DN40	127	98.6	16	4
2	DN50	152	120.6	19	4
21/2	DN65	178	139.7	19	4
3	DN80	190	152.4	19	4
31/2	(DN90)	216	177.8	19	8
4	DN100	229	190.5	19	8
5	DN125	254	215.9	22.5	8
6	DN150	279	241.3	22.5	8
8	DN200	343	298.4	22.5	8
10	DN250	406	362	25.5	12
12	DN300	483	431.8	25.5	12
14	DN350	533	476.2	28.5	12
16	DN400	597	539.8	28.5	16
18	DN450	635	577.8	32	16
20	DN500	693	635	32	20
22	(DN550)	749	692.2	35	20
24	DN600	813	749.3	35	20