American Standard Lug Butterfly Valve

• Media: Water Vapor Oils
• Driving Mode: Electromanual Pneumatic
• Connection Form: Flange Welding
• Structure: Three-Eccentric Sealing
• Seal Form: Supercharging Pressured Sealed
• Valve Stem: Normal
• Model NO.: D373H
• Work Pressure: Mid-Pressure (2.5mpa< Pn <6.4mpa)
• Working Temperature: Medium Temperature (120°C<T<450°C)
• Material of Seal Surface: Metal Hard Sealed
• Valve Body: Sheet Metal
• Standard: National Standard
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Transport Package: Wooden Box
• Specification: DN50-DN2400
• Trademark: xc
• Origin: China
• HS Code: 8481804090
• Production Capacity: 10000

Product Description

Product Name:	American standard lug butterfly valve	Product Model:	D373H
Nominal diameter:	DN50 to DN2400	Seat seal:	Metal seal
Nominal pressure:	1.6Mpa ~ 5.0MPa, 150LB-300LB	Connection method:	Pair clip, flange
Applicable temperature:	-20ºC to +425ºC	Drive mode:	Handle, worm gear, pneumatic, electric
Body material:	WCB, cast steel, carbon steel, stainless steel	Manufacturing standard:	GB, German DIN, American API, ANSI
Applicable media:	Water, oil, steam, sea water	Manufacturer:	Xuan Chengke Valve Co., LTD

Product Description

D373H American standard lug butterfly valve is sealed with three-dimensional eccentric oblique conical valve seat, and the butterfly plate seal is made of new metal sheet and elastic material, which is embedded in the butterfly plate and the valve seat. The use of butterfly plate swing compression tight seal, so the sealing surface friction resistance is small, closed with the tighter function, so reliable sealing, open to ensure that the sealing surface is completely out of contact, to ensure that the sealing surface is not damaged. The structural characteristics of the butterfly valve exclude the shortcomings of other types of butterfly valves that can not be sealed by opening too much, and can be used normally under high dawn, overcoming the shortcomings of other types of valves that are easy to leak due to thermal expansion when used at high temperature. The butterfly valve cultivator use medium requirements, the selection of different sealing surface materials, to ensure that the sealing surface wear resistance, corrosion resistance, long service life.

Design standard

Design criteria	API609-83
Flange connection dimensions	ANSI B16.5
Structural length	ANSI B16.10-1992
Pressure test:	API598-82

Main technical parameters

Nominal diameter	DN (mm)	2" ~ 36"
Nominal pressure	PN (Mpa)	150Lb	300Lb
Test pressure	Strength test	3.0	7.5
	Seal test	2.2	5.5
Applicable media	Water, steam, oil, sea water, etc
Applicable temperature	-29ºC ~ 425ºC

Material of main parts

Part name	Materials
Body	WCB, 304, 316, 316SS, CF8M
Butterfly Plate	WCB, 304, 316, 316SS, CF8M
Valve stem	316, 2Cr13, 1Cr18Ni9Ti
Seal ring	316, fluorine plastic
Filler	Flexible graphite, fluoroplastic

 

Main overall dimensions

Model number	Inches	L		L1		D		D1		D2		H2		H1		H		M	Z-d	Wt/kgs
		inches	millimeter	inches	millimeter	inches	millimeter	inches	millimeter			Inches	millimeter	inches	millimeter	inches	millimeter			double-clip-on	Flange style
D373H-150LB	2. ""	1.72	43	14.25	108	6.00	152	4.75	120.5	3.62	92	4.33	110	11.02	280	13.58	345	M18	4-19	9	20
	3"	1.93	49	4.50	114	7.50	190	6.00	152.5	5.00	127	4.92	125	12.40	315	14.96	380	M18	4-19	11	29
	4"	2.20	56	5.00	127	9.00	229	7.50	190.5	6.19	157	5.70	145	13.78	350	16.34	415	M20	8-19	13	33
	5. ""	2.50	64	5.50	140	10.00	254	8.50	216	7.32	186	6.50	165	15.35	390	17.91	455	M20	8-22	16	38
	6"	2.75	70	5.50	140	11.00	279	9.50	241.5	8.50	216	6.89	175	17.91	455	21.45	545	M20	8-22	26	74
	8"	2.80	71	5.90	150	13.50	343	11.75	298.5	10.62	270	8.26	210	20.67	252	24.21	615	M24	8-22	34	86
	10"	3.00	76	6.30	160	16.00	406	14.25	362	12.75	324	9.84	250	23.81	605	27.36	695	M24	12-25	51	142
Connection size	12"	3.38	86	7.00	178	19.00	483	17.00	432	15.00	381	11.24	285	28.74	730	32.78	830	M27	12-25	72	167
	14"	3.63	92	7.50	190	21.00	533	18.75	476	16.25	413	12.60	320	31.50	800	35.43	900	M27	12-29	106	218
	16"	4.00	102	8.50	216	23.50	597	21.25	540	18.50	470	13.98	355	34.25	870	38.58	980	M30	16-29	133	275
	18"	4.50	114	8.74	222	25.00	635	22.75	578	21.00	533	14.96	380	36.22	920	40.55	1030	M30	16 and 32	176	315
D373H-300LB	20"	5.00	127	9.00	229	27.50	399	25.00	635	23.00	584	16.34	415	39.37	1000	43.70	1110	M33	20 and 32	190	395
	24"	6.06	154	10.50	267	32.00	813	29.50	750	27.25	692	18.70	475	45.51	1155	51.37	1305	M33	20-35	394	580
	30"	6.50	165	11.50	292	38.75	985	36.00	914	33.75	857	22.38	580	54.13	1375	60.03	1525	M39	28 and 35	476	717
	32"	7.50	190	12.50	318	41.75	1060	38.50	978	36.00	914	24.80	630	56.50	1435	62.40	1585	M39	28-41	618	880
	36"	8.00	203	13.00	330	46.00	1168	42.75	1085	40.25	1022	26.77	680	62.40	1585	69.48	1765	M20	32-41	762	1042
	6"	2.75	70					9.5	240	3.5	216	6.89	175	17.91	435	21.45	545	M20	8-22	28
	8"	2.80	71					11.75	298	10.62	270	8.26	210	20.67	525	24.21	615	M24	8-22	36
	10"	3.00	76					14.25	362	12.75	324	9.84	250	23.81	605	27.36	695	M24	12-25	53
	12"	3.38	86					17.00	432	15.00	381	11.24	285	28.74	730	32.78	830	M27	12-25	74
	14"	3.63	92					18.75	476	16.25	413	12.64	320	31.50	800	35.43	900	M27	12-29	110
	16"	4.00	102					21.25	540	18.50	470	13.98	355	34.25	870	38.58	980	M30	16-29	138