Triple Eccentric Flanged Butterfly Valve

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Triple Eccentric Flanged Butterfly Valve

Size Range: DN50-DN2000

Material: WCB

Connection Options: Flanged End

Pressure: 1.0Mpa ~ 4.0Mpa

Working Temperature: -29°C to 425°C

Sealing Options: SS304 + Graphite

Applicable Medium: Water, oil, gas, acid

Product Overview

A metal seated butterfly valve is a durable flow control solution designed for high-temperature, high-pressure, and abrasive media. With a metal-to-metal sealing structure, it offers superior wear resistance, fire safety, and a longer service life compared to soft-seated designs.

Product Features

Metal-to-metal sealing design for reliable performance in both low and high temperatures
Triple eccentric structure minimises friction and improves sealing tightness during closing
Hardfaced sealing surface (stainless steel or cobalt-based alloy) for excellent wear resistance
Self-energising seal with increasing tightness under higher pressure
Low operating torque with smooth opening and closing action
Long service life due to reduced seat wear and controlled sealing contact

Specification Parameters

ITEM	PN 0.6	PN 1.0	PN 1.6	PN 2.5	PN 4.0
Nominal Size DN (mm)	50–2000	50–2000	50–2000	50–2000	50–500
Nominal Pressure (MPa)	0.6	1.0	1.6	2.5	4.0
Strength Test Pressure (MPa)	0.9	1.5	2.4	3.75	6.0
Seal Test Pressure (MPa)	0.66	1.1	1.76	2.75	4.4
Gas Seal Test Pressure (MPa)	0.6	0.6	0.6	0.6	0.6
Leakage	< 0.1 × DN mm³/s (GB/T 13927-92)
Suitable Temperature	−29 ~ 425°C (Carbon steel) / −40 ~ 550°C (SS / Cr-Mo)
Applicable Medium	Air, water, steam, gas, oil, acid, alkali, salt with weak corrosive media
Drive Type	Worm gear / Electric

Standard

ITEM	STANDARD
Manufacturing Standard	JB/T 8527-97
Flange Standard	GB 9113
Face-to-Face Standard	GB 12221-89
Test Standard	GB/T 13927-92

Main Components Material:

PART NAME	MATERIAL
Body	Carbon steel, stainless steel, chrome molybdenum steel, alloy steel
Disc	Carbon steel, alloy steel, stainless steel, chrome molybdenum steel
Seat Ring	Stainless steel and high-temperature asbestos combined into multi-layer
Stem	2Cr13, 1Cr13 stainless steel, chrome molybdenum steel
Bearing	Austenitic stainless steel, 304 nitrided
Packing	Flexible graphite

D343H.Y.F-10~16C.P.R.I

Main Connection Dimensions:

PN	DN	L	D	D1	D2	n-Ød	b	f	H	H0	A	B	W (kg)
1.0 MPa	50	108	165	125	99	4-18	20	2	170	130	45	120	7
	65	112	185	145	118	4-18	20	2	170	145	45	120	9.2
	80	114	200	160	132	8-18	20	2	230	152	45	120	11.6
	100	127	220	180	156	8-18	22	2	320	192	45	120	14
	125	140	250	210	184	8-18	22	2	345	200	45	120	18
	150	140	285	240	211	8-22	24	2	385	230	66	150	23
	200	152	340	295	266	8-22	24	2	471	297	85	170	44
	250	165	405	355	319	12-22	26	2	533	327	85	170	64
	300	178	445	400	370	12-22	26	2	606	364	106	205	105
	350	190	505	460	429	16-22	26	2	694	404	106	205	134
	400	216	565	515	480	16-26	26	2	757	444	130	240	181
	450	222	615	565	530	20-26	28	2	814	472	155	240	237
	500	229	670	620	582	20-26	28	2	902	522	169	306	292
	600	267	780	725	682	20-30	34	2	1048	590	198	324	421
	700	292	895	840	794	24-30	34	5	1277	810	220	335	541
	800	318	1015	950	901	24-33	36	5	1385	844	241	356	658
	900	330	1115	1050	1001	28-33	38	5	1490	890	241	356	790
	1000	410	1230	1160	1112	28-36	38	5	1620	950	241	356	890
PN	DN	L	D	D1	D2	n-Ød	b	f	H	H0	A	B	W (kg)
1.6 MPa	50	108	165	125	99	4-18	20	2	170	130	45	120	7
	65	112	185	145	118	4-18	20	2	170	145	45	120	9.2
	80	114	200	160	132	8-18	20	2	230	152	45	120	11.6
	100	127	220	180	156	8-18	22	2	320	192	45	120	14
	125	140	250	210	184	8-18	22	3	345	200	45	120	18
	150	140	285	240	211	8-22	24	2	385	230	66	150	23
	200	152	340	295	266	12-22	24	2	471	297	85	170	44
	250	165	405	355	319	12-22	26	2	533	327	85	170	64
	300	178	460	410	370	12-26	28	2	694	364	106	205	105
	350	190	520	470	429	16-26	30	2	606	404	106	205	134
	400	216	580	525	480	16-30	32	2	757	444	130	240	181
	450	222	640	585	548	20-30	40	2	814	472	155	240	237
	500	229	715	650	609	20-33	44	2	902	522	169	306	292
	600	267	840	770	720	20-36	54	2	1048	590	198	324	421
	700	292	910	840	794	24-36	40	5	1277	810	220	335	541
	800	318	1025	950	901	24-39	42	5	1385	844	241	356	658
	900	330	1125	1050	1001	28-39	44	5	1490	890	241	356	790
	1000	410	1225	1170	1112	28-42	46	5	1620	950	241	356	890
PN	DN	L	D	D1	D2	n-Ød	b	f	H	H0	A	B	W (kg)
2.5 MPa	50	108	165	125	99	4-18	20	2	170	130	45	120	13
	65	112	185	145	118	8-18	22	2	265	210	35	90	15
	80	114	200	160	132	8-18	24	2	310	233	35	90	19
	100	127	235	190	156	8-22	24	2	343	242	45	120	23
	125	140	270	220	184	8-26	26	2	385	254	45	120	45
	150	140	300	250	211	8-26	28	2	445	280	66	150	66
	200	152	360	310	274	12-26	30	2	510	297	85	170	107
	250	165	425	370	330	12-30	32	2	569	339	85	170	136
	300	178	485	430	389	16-30	34	2	653	375	106	205	185
	350	190	555	490	448	16-33	38	2	730	420	106	205	240
	400	216	620	550	503	16-36	40	2	810	463	130	240	294
	450	222	670	600	548	20-36	46	2	850	495	155	240	423
	500	229	730	660	609	20-36	48	2	940	566	169	306	546
	600	267	845	770	720	20-39	58	2	1150	630	198	324	660
	700	292	960	875	820	24-42	50	5	1195	727	220	335	795
	800	318	1085	990	909	20-36	54	5	1268	810	241	356	894
PN	DN	L	D	D1	D2	n-Ød	b	f	H	H0	A	B	W (kg)
4.0 MPa	50	108	165	125	99	4-18	20	2	170	130	35	120	13
	65	112	185	145	118	8-18	22	2	265	210	35	90	15
	80	114	200	160	132	8-18	20	2	310	233	35	90	19
	100	127	235	190	156	8-22	24	2	343	242	45	120	25
	125	140	270	220	184	8-26	26	2	385	254	45	120	46
	150	140	300	250	211	8-26	28	2	445	280	66	150	67
	200	152	375	320	284	12-30	34	2	510	297	85	170	109
	250	165	450	385	345	12-33	38	2	569	339	85	170	138
	300	178	515	450	409	16-33	42	2	653	375	106	205	186
	350	190	580	510	465	16-36	46	2	730	420	106	205	241
	400	216	660	585	535	16-39	50	2	810	463	130	240	295
	450	222	685	610	560	20-39	57	2	850	495	155	240	424
	500	229	755	670	615	20-42	57	2	940	566	169	306	547
	600	267	890	795	735	20-48	72	2	1150	630	198	324	662
	700	292	995	900	835	24-54	68	5	1195	727	220	335	797
	800	318	1035	1030	960	24-58	76	5	1268	810	241	356	898

Specification Applications

High-temperature steam systems in power plants and industrial networks
Oil & gas pipelines requiring reliable metal-to-metal sealing
Petrochemical and chemical processing with corrosive or high-pressure media
Thermal oil and heat transfer systems with frequent temperature cycling
Mining and slurry service handling abrasive fluids
Critical shut-off points where zero leakage and long service life are required

Valve Actuation

Process Optimization

Precision Engineering

Pipeline Solutions

Industrial Valves

Flow Control

Hard Seal Wafer Butterfly Valve

Fluorine-Lined Pneumatic Butterfly Valve

Flanged PTFE-Lined Butterfly Valve (Midline)

PTFE-Lined Wafer butterfly Valves (Middle)

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Your Trusted Partner for High-Quality Valve Solutions

Triple Eccentric Flanged Butterfly Valve

Triple Eccentric Flanged Butterfly Valve

Product Overview

Product Features

Specification Parameters

Standard

Main Components Material:

D343H.Y.F-10~16C.P.R.I

Main Connection Dimensions:

Specification Applications

Valve Actuation

Process Optimization

Precision Engineering

Pipeline Solutions

Industrial Valves

Flow Control

Related Products

Hard Seal Wafer Butterfly Valve

Fluorine-Lined Pneumatic Butterfly Valve

Flanged PTFE-Lined Butterfly Valve (Midline)

PTFE-Lined Wafer butterfly Valves (Middle)

Get In Touch

Call Us On

Email Us

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