Dual-Plate Double-Flange Check Valve

• Customization: Available
• Media: Oil
• Temperature: -196ºC ~ 540ºC
• Model NO.: Dual-plate double-flange check valve
• Connection Form: Flange
• Pressure: Pn1~Pn42(Class150~Class2500)
• Standard: API
• Application: Industrial Usage, Water Industrial Usage
• Design and Manufacture: API594, API6d, Jb/T8937
• Structure Length: API594, API6d, Jb/T8937
• Piping Flange: Jb/T74~90, GB/T13402, GB/T9112~9124, etc.
• Pressure-Temperature Rating: Jb/T74, GB/T9124, Hg20604~20625, ASME B16.34, etc.
• Test and Inspection: API598, Jb/T9092
• Transport Package: Plywood
• Specification: DN15~DN1200(1/2" ~48")
• Trademark: OEM
• Origin: China
• HS Code: 84818090
• Production Capacity: 270, 000/Year

Product Description

   

Dimensions & Weights
Size	Pressure Rating	End facing	Dimensions							Pipe Flange					Weight (Kg)
			L	D	C	R	f	D2	D3	D1	Stud Quantity	Stud Diameter		Stud Length
			mm									in	mm	mm
8" (200)	150	RF	127	345	27	270	2	203	210	298.5	8	3/4	M20	140	42
10" (250)	150	RF	146	405	28.6	324	2	254	265	362	12	7/8	M24	145	65
	600	RF/RTJ-53	213	510	63.5	324	7	254	265	431.8	16	1 1/4	M33	240/245	185
	900	RF/RTJ-53	241	545	69.9	324	7	250	265	469.9	16	1 3/8	M36X3	260/265	210
12" (300)	150	RF	181	485	30.2	381	2	305	310	431.8	12	7/8	M24	150	100
	300	RF	181	520	49.3	381	2	305	310	450.8	16	1 1/8	M30	205	155
	600	RF/RTJ-57	229	560	66.7	381	7	305	310	489	20	1 1/4	M33	250/255	240
	900	RF/RTJ-57	292	610	79.4	381	7	305	310	533.4	20	1 3/8	M36X3	275/285	350
14" (350)	150	RF	184	535	33.4	413	2	350	355	476.3	12	1	M27	160	135
	300	RF	222	585	52.4	413	2	350	355	514.4	20	1 1/8	M30	210	210
	600	RF/RTJ-61	273	605	69.9	413	7	340	350	527	20	1 3/8	M36X3	260/265	380
	900	RF/RTJ-62	356	640	85.8	413	7	340	350	558.8	20	1 1/2	M39X3	300/310	470
16" (400)	150	RF	191	595	35	470	2	400	405	539.8	16	1	M27	170	168
	300	RF	232	650	55.6	470	2	400	405	571.5	20	1 1/4	M33	205	310
	600	RF/RTJ-65	305	685	76.2	470	7	390	400	603.2	20	1 1/2	M39X3	280/285	500
	900	RF/RTJ-66	384	705	88.9	470	7	380	400	616	20	1 5/8	M42X3	310/320	630
18" (450)	150	RF	203	635	38.1	533	2	450	455	577.9	16	1 1/8	M30	175	205
	300	RF	264	710	58.8	533	2	450	455	628.6	24	1 1/4	M33	225	380
	600	RF/RTJ-69	362	745	82.6	533	7	440	450	654	20	1 5/8	M42X3	300/305	620
	900	RF/RTJ-70	451	785	101.6	533	7	430	440	685.8	20	1 7/8	M48X3	350/365	880
20" (500)	150	RF	219	700	41.3	587	2	500	505	635	20	1 1/8	M30	180	260
	300	RF	292	775	62	587	2	500	505	685.8	24	1 1/4	M33	220	450
	600	RF/RTJ-73	368	815	88.9	587	7	490	500	723.9	24	1 5/8	M42X3	310/320	780
	900	RF/RTJ-74	451	855	108	587	7	490	500	749.3	20	2	M52X3	370/385	1800
24" (600)	150	RF	222	815	46.1	692	2	600	605	749.3	20	1 1/4	M33	195	370
	300	RF	318	915	68.3	692	2	600	605	812.8	24	1 1/2	M39X3	260	720
	600	RF/RTJ-77	438	940	101.6	692	7	590	600	838.2	24	1 7/8	M48X3	355/365	1120
	900	RF/RTJ-78	495	1040	139.7	692	7	580	590	901.7	20	2 1/2	M64X3	470/485	1800
28" (700)	150	RF	305	925	69.9	800	2	685	690	863.6	28	1 1/4	M33	250	700
	300	RF	368	1035	84.2	800	2	685	690	939.8	28	1 5/8	M42X3	300	**
	600	RF/RTJ-94	483	1075	111.2	800	7	685	690	965.2	28	2	M52X3	390/400	..
	900	RF/RTJ-101	572	1170	142.9	800	7	670	680	1022.4	20	3	M76X3	510/520	**
30" (750)	150	RF	305	985	73.1	857	2	735	740	914.4	28	1 1/4	M33	255	760
	300	RF	368	1090	90.5	857	2	735	740	997	28	1 3/4	M45X3	320	**
	600	RF/RTJ-95	505	1130	114.3	857	7	735	740	1022.4	28	2	M52X3	390/400	**
	900	RF/RTJ-102	635	1230	149.3	857	7	715	730	1085.9	20	3	M76X3	530/540	**
32" (800)	150	RF	305	1060	79.4	914	2	785	790	977.9	28	1 1/2	M39X3	280	990
	300	RF	368	1150	96.9	914	2	785	790	1054.1	32	1 1/2	M39X3	340	**
	600	RF/RTJ-96	533	1195	117.5	914	7	780	790	1079.5	28	2 1/4	M56X3	415/425	**
	900	RF/RTJ-103	660	1315	158.8	914	7	760	780	1155.7	20	3 1/4	M84X3	555/570	**
36" (900)	150	RF	368	1710	89.9	1022	2	885	890	1085.9	32	1 1/2	M39X3	300	**
	300	RF	483	1270	103.2	1022	2	885	890	1168.4	32	2	M54X3	355	**
	600	RF/RTJ-98	635	1315	123.9	1022	7	875	880	1193.8	28	2 1/2	M64X3	440/450	**
	900	RF/RTJ-105	718	1460	171.5	1022	7	855	865	1289.1	20	3 1/2	M90X3	600/610	**
40" (1000)	150	RF	432	1290	89.9	1124	2	980	990	1200.7	36	1 1/2	M39X3	300	**
	300	RF	546	1240	112.8	1086	2	980	990	1155.7	32	1 5/8	M42X3	350	**
	600	RF	660	1320	158.8	1111	7	980	985	1212.9	32	2 1/4	M56X3	480	**
	900	RF	762	1510	196.9	1162	7	950	965	1339.9	24	3 1/2	M90X3	620	**
42"(1050)	150	RF	432	1345	95.3	1194	2	1020	1040	1257.3	36	1 1/2	M39X3	310	**
	300	RF	568	1290	117.5	1137	2	1020	1040	1206.5	32	15/8	M42X3	360	**
48" (1200)	150	RF	524	1510	106.4	1359	2	1170	1190	1422.4	44	1 1/2	M39X3	330	**
	300	RF	629	1465	131.8	1302	2	1170	1180	1371.6	32	1 7/8	M48X3	400	**
	600	RF	787	1595	189	1334	7	1170	1170	1460.5	32	2 3/4	M70X3	570	**
54" (1350)	150	RF	591	1685	119.1	1511	2	1315	1330	1593.9	44	1 3/4	M45X3	370	**
	300	RF	718	1660	150.9	1467	2	1315	1330	1549.4	28	2 1/4	M56X3	460	**
60" (1500)	150	RF	660	1855	130.2	1676	2	1460	1470	1759	52	1 3/4	M45X3	390	**
	300	RF	838	1810	162	1626	2	1460	1470	1701.8	32	2 1/4	M56X3	480	**

We are a company with 20 years of production and sales experience. 

We mainly provide safe and reliable  API ,JIS ,DIN Standard ball valve, gate valves, globe valves, check valves, fitting flange etc. for pipeline fluids. 
We are a company with 20 years of production and sales experience. We mainly provide safe and reliable API, JIS, DIN Standard ball valve, gate valves, globe valves, check valves, fitting flange etc. for pipeline fluids.

Have API6D, CE, ISO certificate.
Our group total have about 300 employees. It is a integrated high-tech enterprise which includes casting and production, export safety process service.

· Casting room: 8 casting line, 20,000 square. 2,000 Ton / Year
· Workshop: 40,000 square meters, 270,000 Valves / Year( Including The automatic production line for flange ball valves 5,000 square, 500 PCS / Day )
· Stock : 30 Millon RMB SS valve

Our main customers are distributors and wholesalers at all levels. The main materials are WCB, CF8, CF8M, CF3, CF3M, Duplex, Brass, cast iron, pressure from 150LB to 2,500LB. PN16 - PN160, 10K, 20K, Caliber 1/2″-40", connection method RF, RTJ, FF, BW, etc.Mainly we export to Brazil, Chile, Ecuador Vietnam, Turkey, Russian, Ukraine, Peru, Mexico, Romania, Czech Republic and other countries.

Company purpose: To provide reliable, efficient and flexible service, adhere to high quality, low price, fast delivery, professional quality control and good after-sales service attitude! Our goal is to become a reliable supplier of products in the petroleum industry.