Name: Metal Seated Flanged Expansion Butterfly Valve SD343H PN0.6~1.6 Gear Operated - VALVEHU, Leading Valve Manufacturer and Supplier in China
SKU: HU38

Description

Contents hide

1 Buy Industrial Butterfly Valve D373H Multi-Pressure Cast Body Flanged Manual Type

1.1 Technical Specifications

1.2 Main Technical Parameters

1.3 Main Overall and Connection Dimensions – SD343H Butterfly Valve – PN6, PN10, PN16 (DN50–DN2000)(Unit: mm)

1.4 FAQ

Buy Industrial Butterfly Valve D373H Multi-Pressure Cast Body Flanged Manual Type

The D373H Flanged Triple Eccentric Butterfly Valve from VALVEHU is an advanced industrial solution designed for demanding flow control applications. Engineered to operate under pressure ratings of PN0.6, PN1.0, and PN1.6 MPa, this valve delivers reliable performance across various fluid mediums including air, water, steam, and oil-based substances.

Built with triple eccentric geometry, this valve minimizes seat wear, ensuring excellent sealing capabilities over a longer lifecycle. It supports nominal diameters from DN50 to DN2000, making it a versatile choice for both medium and large pipeline systems. The body material options include carbon steel or stainless steel, with flanged connections conforming to GB/T17241.6 and tested in accordance with GB/T13927 for strength and tightness.

The D373H features a robust design that integrates handwheel, worm gear, pneumatic, or electric actuators, allowing flexible operation depending on system requirements. The optimized structure includes precise shaft alignment and tight tolerances to handle intensive pressure environments with minimal leakage and maintenance.

Suitable for use in industrial systems handling air, water, wastewater, steam, gas, and light oils, the D373H is widely applied in sectors such as HVAC, petrochemical, metallurgy, power generation, and water treatment.

If you’re looking for a dependable and efficient butterfly valve for your industrial application, the D373H is engineered to meet the performance standards your project demands. For personalized guidance and pricing, feel free to contact our VALVEHU specialists in China. Our expert team is ready to assist you in selecting the right valve solution for your system.

Technical Specifications

Model D373H Triple Eccentric Butterfly Valve
Pressure Ratings PN0.6, PN1.0, PN1.6 MPa
Size Range DN50 to DN2000
Body Type Flanged connection
Actuation Options Manual, worm gear, pneumatic, electric
Mediums Air, water, wastewater, steam, gas, oil
Seal Type Triple offset for high performance
Standards GB/T12238, JB/T8527, GB/T17241.6
Temperature Range Up to 200°C depending on medium
Structure Rigid, low-maintenance design

Main Technical Parameters

Parameter	DN50–2000	DN50–1600
Nominal Diameter (DN)	50–2000 mm	50–1600 mm
Nominal Pressure (PN)	0.6 MPa	1.0 MPa
		1.6 MPa
Seal Test Pressure	0.66 MPa	1.1 MPa
		1.76 MPa
Shell Strength Test Pressure	0.9 MPa	1.5 MPa
		2.4 MPa
Applicable Temperature	Carbon Steel: -29°C to 425°C	Stainless Steel: -40°C to 650°C
Suitable Media	Water, Air, Natural Gas, Petroleum Products, Mild Corrosive Fluids	Water, Air, Natural Gas, Petroleum Products, Mild Corrosive Fluids
Leakage Rate	In accordance with GB/T13927-2008 Standard	In accordance with GB/T13927-2008 Standard
Actuation Method	Worm Gear, Electric, Pneumatic, Hydraulic	Worm Gear, Electric, Pneumatic, Hydraulic

Main Overall and Connection Dimensions – SD343H Butterfly Valve – PN6, PN10, PN16 (DN50–DN2000)(Unit: mm)

Nominal Diameter DN	Inch	H	H1	Lmax	Lmin	Design L	A	B	0.6MPa D	D1	D2	n–φd	1.0MPa D	D1	D2	n–φd	1.6MPa D	D1	D2	n–φd
50	2	80	309	169	142	150	180	200	140	110	88	4–14	165	125	99	4–18	165	125	99	4–18
65	2 1/2	95	337	186	159	170	180	200	160	130	108	4–14	185	145	118	4–18	185	145	118	4–18
80	3	98	347	194	167	180	200	200	190	150	124	4–18	200	160	132	8–18	200	160	132	8–18
100	4	114	373	219	188	190	200	200	210	170	144	8–18	220	180	156	8–18	220	180	156	8–18
125	5	128	405	225	195	200	180	200	240	200	174	8–18	250	210	184	8–18	250	210	184	8–18
150	6	139	440	240	205	210	270	280	265	225	199	8–18	285	240	211	8–22	285	240	211	8–22
200	8	174	612	259	219	230	400	425	280	240	258	8–8	340	295	266	12–22	340	295	266	12–22
250	10	215	693	384	239	250	400	425	375	335	309	12–22	395	350	319	12–22	405	355	319	12–26
300	12	245	747	309	259	270	450	560	440	395	363	12–22	445	400	370	12–22	460	410	370	12–26
350	14	270	802	328	275	290	450	560	490	445	413	12–22	505	460	429	16–26	520	470	429	16–30
400	16	305	991	347	287	310	535	580	540	495	463	16–22	565	515	480	16–26	580	525	480	16–30
450	18	325	1037	378	318	330	535	580	595	550	518	16–22	615	565	530	20–26	640	585	548	20–30
500	20	360	1127	399	339	350	535	580	645	600	568	16–22	670	620	582	20–26	715	650	609	20–33
600	24	445	1377	430	362	390	570	660	755	705	667	20–26	780	725	682	20–30	840	770	720	20–36
700	28	505	1496	469	399	430	750	550	860	810	772	24–26	895	840	794	24–30	910	840	794	24–36
800	32	560	1584	529	454	470	750	550	975	920	878	24–30	1015	950	901	24–33	1025	950	901	24–39
900	36	630	1676	569	494	510	750	550	1075	1020	978	24–30	1115	1050	1001	28–33	1125	1050	1001	28–39
1000	40	680	1760	608	534	550	900	750	1175	1120	1078	28–30	1230	1160	1112	28–42	1255	1170	1112	28–42
1200	48	795	2018	720	614	630	1000	925	1405	1300	1295	32–33	1455	1380	1328	32–39	1485	1390	1328	32–48
1400	56	900	2363	747	665	710	1000	925	1620	1560	1510	36–36	1675	1590	1530	36–42	1685	1590	1530	36–48
1600	64	1100	2723	850	745	790	1000	925	1820	1760	1710	40–36	1915	1820	1750	40–56	1930	1820	1750	40–56
1800	72	1124	2844	920	820	870	1100	980	2045	1970	1718	44–39	2115	2020	1950	44–48	2130	2020	1950	44–56
2000	80	1292	3127	1010	900	950	1100	980	2265	2180	2125	48–42	2325	2230	2150	48–48	2345	2230	2150	48–62

FAQ

What is the pressure rating of the D373H butterfly valve?
It supports PN0.6, PN1.0, and PN1.6 MPa pressure levels for flexible usage in multiple systems.

Which actuation methods are available for this butterfly valve?
It is available with manual, worm gear, pneumatic, and electric actuators based on system requirements.

What sizes are supported by the D373H model?
The valve is available in a wide size range from DN50 to DN2000.

What types of media can this valve handle?
It is designed for air, water, steam, gas, wastewater, and oil-based fluids.

What industries commonly use the D373H valve?
It is suitable for HVAC, petrochemical, power plants, metallurgy, and water treatment applications.