Carbon Steel / Cast Iron Retainer / Retainerless Dual Plate Check Valve

• Temperature: Ordinary Temperature
• Material: Cast Steel
• Connection Form: Wafer
• Structure: Swing
• Pressure: High Temperature
• Function: Ddcv Double Lobe
• Model NO.: H74/6
• Sealing Form: by Medium
• Flow Direction: Reversing
• Standard: GB
• Application: Industrial Usage, Water Industrial Usage
• Size: 2 Inch to 24 Inch
• Body Material: Cast Iron/Di/Ggg40/Ggg50/Wcb/CF8/CF8m
• Working Pressure: Pn10-Pn16
• Painting: Fbe Epoxy Coated, Ral (Clinets Demand)
• Disc: Stainless Steel
• Transport Package: Plywood Case
• Specification: 2" to 48"
• Trademark: AKSF
• Origin: China
• HS Code: 8481804090
• Production Capacity: 200 PC/Month

Product Description

NO.	Part name	Material
		EH, AH	BH	MH
1	Body	CI DI WCB CF8 CF8M ALB	CI DI WCB CF8 CF8M ALB	WCB CF8 CF8M ALB
2	Seat	NBR EPDM VITON etc.	DI Covered Rubber	NBR EPDM VITON etc
3	Plate	DI ALB CF8 CF8M	DlALB CF8 CF8M	WCB CIF8 CF8M ALB
4	Shaft	304/316	304/316	WCB CF8 CF8M ALB
5	Spring	304		/

Main connection dimensions
Nominal diameter		D	D1	R	L	t	D2	weight(kg)
DN(mm)	NPS(inch)
50	2'	105(4.134)	65(2.559)	29.73(1.17)	54(2.12)	25(0.984)	32.18(1.26)	2,8
65	21/2"	124(4.882)	78(3.071)	36.14(1.423)	60(2.38)	29.3(1.154)	42.31(1.666)	3
80	3"	137(5.39)	94(3.701)	43.42(1.709)	67(2.62)	27.7(1.091)	66.87(2.633)	3.8
100	4"	175(6.89)	117(4.606)	55.66(2.191)	67(2.62)	26.7(1.051)	97.68(3.846)	5.5
125	Lo	187(7.362)	145(5.709)	67.68(2.665)	83(3.25)	38.6(1.52)	111.19(4.378)	7.4
150	9	222(8.74)	171(6.732)	78.64(3.096)	95(3.75)	46.3(1.823)	127.13(5.005)	10.9
200	8"	279(10.984)	222(8.740)	102.5(4.035)	127(5)	66(2.598)	161.8(6.370)	22.5
250	10"	340(13.386)	276(10.866)	126(4.961)	140(5.5)	70.7(2.783)	213.6(8.490)	36
300	12"	410(16.142)	327(12.874)	154(6.063)	181(7.12)	102(4.016)	237.9(9.366)	54
350	14"	451(17.756)	375(14.764)	179.9(7.083)	184(7.25)	89.2(3.512)	312.5(12.303)	80
400	16"	514(20.236)	416(16.378)	198.4(7.811)	191(7.5)	92.5(3.642)	351.0(13.819)	116
450	18"	549(21.614)	467(18.386)	226.2(8.906	203(8)	96.2(3.787)	409.4(16.118)	138
500	20"	606(23.858)	514(20.236)	248.2(9.72)	213(8.374)	102.7(4.043)	451.9(17.791)	175
600	24".	718(28.268)	616(24.252	297.4(11.709)	222(8.75)	107.3(4.224)	554.7(21.839)	239
750	30"	884(34.8)	772(30.39)	374(14.724)	305(12)	150(5.905)	685.2(26.976)	659

Retainerless Dual Plate Check Valve

Standard and specification
1.Design and manufacture:API594,API 6D,JB/TB8937;
2.Face to face and end to end:API594,API6D,DIN3202,JB/T8937;
3.Pressure-temperature rating:ASME B16.34,DIN2410,GB/T9124,HG20625,SH3406,JB/T74;
4.Inspection and test: API598,JB/T9092;
5.Pipe flange: JB/T74~90,JB/T9112-9124,HG20592~20635,SH3406,ASME B16.5,DIN2543~2548,GB/T13402,API605,ASME B16.47. 

Structural Feature
1.Short structural length,only 1/4~1/8 of that of traditional flanged check valve;
2.Low volume,light weight,only 1/4~1/20 of those of traditional flanged check valve;
3.Quick valve disc closedown,low water hammer pressure;
4.Applicable for and easily installed for vertical or horizontal pipelines;
5.Smooth flow passageway and small fluid resistance;
6.Flexible action and good sealing performance;
7.Narrow valve travel and small closedown impact;
8.Integrated structure,simple and compact,in beautiful shape;
9.Long service life and good reliability.